Associate Professor Chris Cazzonelli
Associate Professor Chris Cazzonelli is a distinguished Plant Molecular Biologist at the Hawkesbury Institute for the Environment and a dedicated lecturer at Western Sydney University. Holding a Bachelor of Science with First Class Honours, he earned his PhD in Botany from the University of Queensland in 2002, supported by an esteemed Australian Postgraduate Award focusing on plant stress acclimation at the molecular level. Following this, he received a prestigious United States Department of Agriculture Postdoctoral Fellowship, where he pioneered synthetic biology techniques to engineer gene regulatory systems for enhancing plant genetics. Recruited in 2006 by the ARC Centre of Excellence in Plant Energy Biology at the Australian National University, he delved into the regulation of beneficial carotenoid metabolites in crops, a contribution recognized with the Goldacre Medal by the Australian Society of Plant Biologists in 2010. Currently, as head of the Environmental Epigenetics Laboratory (EELab), A/Prof. Cazzonelli leads groundbreaking research into genetic regulatory mechanisms, metabolic feedback loops governing communication between plastids and the nucleus, and processes that facilitate memory formation to prime plants for stress acclimation in response to environmental changes such as light quality, mechanical stimulation, bioacoustics, and cell vibrations. The EELab specializes in advancing our understanding of carotenoid regulation for enhanced photoprotection and photosynthesis, driving improvements in crop yield and nutritional quality under varying light conditions, with far-reaching benefits for human and animal health. Our research also pioneer’s advancements in smart films for horticultural protected cropping, automated crop monitoring, precision non-contact pollination techniques, and the genetics underlying next-generation orchard production.
We take a multidisciplinary approach to discover how environmental stimuli control genetic and chemical processes that prime photoprotection in vegetables and boost fruit production in horticultural tree crops...
We explore memory-forming processes controlling carotenoid biosynthesis and apocarotenoid signalling in response to altered light quality, mechanical stimulation, acoustic vibrations, elevated carbon dioxide, heatwaves, and drought stress. We study the entourage affect with other medicinal and nutritional plant secondary metabolites generated in plant energy organelles such as the chloroplast. We advance knowledge and Agri-Tech innovation in glasshouse protected cropping, horticultural tree genomics, and precision floral pollination technologies fast-forwarding improvements in crop yield, quality and produce nutrition value. Our research goal is to enhance the environmental sustainability of agricultural and horticultural production systems with follow-on benefits for human and animal health.
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Current Research Projects and Opportunities
The future of plant science can be unlocked with cutting-edge research projects, designed for enthusiastic and talented students eager to dive deep into the realms of plant biology, environmental science, and horticultural crop genomics. Our team thrives in a world of discovery and innovation to contribute to groundbreaking research that will shape the future of plant science. We are tackling pivotal questions about how environmental changes influence plant adaptation, agricultural productivity, protected cropping, and crop resilience. Our team focuses on understanding how altered light conditions, temperature, bioacoustics, and mechanical stress impact plants. We elucidate how long-term changes in the environment train memory forming processes that enhance stress acclimation, boost crop production, facilitate photoprotection, and prime resistance to pest attack.
Research opportunities provide hands-on experience with advanced technologies in molecular biology, epigenetics, biochemistry, functional genomics, physiology, cell biology and plant phenotyping. We unravel new scientific frontiers through utilising next generation sequencing, metabolomics, volatilomics, transcriptomics, genetic engineering, synthetic biotechnology, gene editing, viral induced gene regulation, tissue culture, and other transgenic engineering approaches to study gene functions in plant and microbial systems.
Hunting for genetic and metabolic regulatory switches in plants
Bacteria and plants are natural chemical factories producing micronutrient metabolites (e.g. vitamins and antioxidants such as carotenoid pigments) that promote animal health, cellular communication and regulate gene expression. We are discovering photochemical and metabolite-responsive RNA switches that modulate plant energy biology, organelle biogenesis and cellular homeostasis by regulating gene expression and/or protein levels. This project generates fundamental new knowledge to translate innovation in synthetic biology.
Elucidating chemical signals that prime photoprotection and boost crop yield
Environmental and development conditions affect the temporal and spatial variation of plant carotenoid secondary metabolites that provide pharmaceutical as well as nutritional benefits for animals and plants. We discover carotenoid-derived metabolites that modulate gene expression, chloroplast biogenesis, photoprotection, photosynthesis, and carbon assimilation. The translation of carotenoid molecules into natural growth regulators can sustain agroecosystems by promoting fungal symbiosis, deterring insect herbivores, and boosting crop vigour.
Deciphering how plants memorise cellular vibrations from mechanical stress
Plants sense and respond to cellular vibrations from touch, sound, wind, rain, and herbivory that trigger mechanically induced stress. Plants forget a single event of mechanical stress yet remember prolonged events that alter plant` morphology and prime resistance to insect and fungal pests. We investigate the physiological, molecular, and epigenetic forming processes that program a mechanically induced stress memory that primes a tougher and more resilient plant to natural stress events. Advancing new knowledge of the mechanisms by which plants retain stress memory can invigorate sustainable agroecosystem practices and boost crop yield.
Horticultural innovation utilising genetics for next generation orchards
Our mission is to develop tools for breeders, growers, and scientists to expedite the development of new crop cultivars that will enhance sustainability, production, and profitability for next generation orchard systems. We advance gene annotations, characterise gene functions, decipher regulatory mechanisms, and understand genomic variability in the target crops almond and mango. The goal is to understand the genetic mechanisms underpinning complex traits such as flowering, precocity, bud dormancy, nut quality, fruit colour, and their interactions with the environment. In the long-term, this project can expedite the development of new crop varieties to ensure long-term viability, profitability, and global competitiveness for horticultural tree crops.
Elucidating plant cell behaviour to frequency-dependent bioacoustics
We are testing and engineering sonication devices to investigate the frequency-dependent power-law behaviour of plant living cells. We contrast contact-induced mechanical vibrations with precision non-contact sonication methods. We interrogate the relationship between the frequency of sonic vibrations with floral pollination success and tomato fruit size to understand the power law behaviour of plant cells. Our translational goal is to automate precision robotic bioacoustics for tomato floral self-pollination that can offer financial benefits for the protected cropping industry.
Lab Members








Current Postgraduate Students
- 2025 Komal Lakhani, PhD (Light-regulating mechanisms modulating zinc nanoparticle supplemented growth and carotenoid-mediated photoprotection of capsicum)
- 2025 Jaykishan Korat; PhD (Biochemical and genetic mechanisms regulating peel colour and fruit fibre traits in mango)
- 2023 Hasan, PhD (Plant molecular responses of capsicum to light-blocking and light-altering films)
- 2023 Avijit Biswas, PhD (Linking mechanical stress to bioactive carotenoid signals that prime insect resistance in crops)
- 2022 Husnain Butt, PhD (Regulation of carotenoid derived signals that drive Mycorrhizal interactions within the tomato rhizosphere)
- 2022 Happy, PhD (Unravelling how mechanical and acoustic stimulation alter gene expression, pollination, fruit development and metabolism in plants
- 2021 Mekala Manivannan, PhD (Functional Genomics in Almond Tress using Viral Induced Gene Regulation)
Undergraduate Students
- 2022 Tadiwa Mangwiro (Diurnal regulation of the carotenoid de-epoxidation state in capsicum leaves from red and orange cultivars grown under a light altering glasshouse film)
- 2020 Cameron Pike (Transcriptome analysis and annotation of differentially expressed genes in etiolated Solanum lycopersicum seedlings)
- 2019 Kanupriya Singhal (HIE Summer Scholar: Touching plants to prime defence against insect herbivory)
- 2018 Aliki Jones (Science Research Projects, 300924: Discovering the dark side of carotenoids in plants)
- 2017 Jessica Tyler (HIE Internship; Mechanical stress training primes plant defense responses)
- 2017 Laura Lynch (HIE Summer Scholar: A forward genetics screen restores root development in an Arabidopsis carotenoid mutant)
- 2016 Jordan Hollis (HIE Internship: Investigating cis-carotene accumulation during the de-etiolation of tomato seedlings)
- 2016 Grace Scott (300910/Advanced Science Project C and 300913/Field Project 1; Biofortification of Tomato: Investigating novel roles for carotenoids in mutualistic mycorrhiza associations)
- 2015 Wendy Ng (HIE Summer Scholar: Characterisation of an Arabidopsis carotenoid mutant with an altered root phenotype)
- 2014 Inan Muhsin (UWS Science Research Project: Investigating carotenoid regulatory pathways using a suppressor mutant screen)
Past Postgraduate Students
- 2024 Lucky Paudel; PhD (Identification and characterisation of genes regulating flowering and dormancy in almond through transcriptomic analysis and functional complementation in Arabidopsis; WSU-HIE)
- 2024 Jwalit Nayak; PhD (Light-mediated isomerization of carotenoids control nuclear gene expression and regulate metabolic feedback in Arabidopsis and tomato; WSU-HIE)
- 2024 Mahfuza Pervin; PhD (Somatic memory of mechanically stress- induced thigmomorphogenesis: balancing jasmonate biosynthesis with gibberellin catabolism; WSU-HIE)
- 2024 Kanti Ghimire; MRes (Carotenoid accumulation and regulation in dark and light grown capsicum seedling cultivars showing genetic variation in fruit colour; WSU-HIE)
- 2023 Sidra Anwar; PhD (A carotenoid-derived signal controls root architecture in Arabidopsis; WSU-HIE)
- 2020 Yagiz Alagoz; PhD (Feedback regulation of carotenoid biosynthesis by an apocarotenoid sensing RNA structural switch; WSU-HIE)
- 2020 Eric Brenya; PhD (Elucidating thigmomorphogenesis: An epigenetic phenomenon of plant stress acclimation and transgenerational adaptation, WSU-HIE)
- 2019 Pranjali Nayak, MRes (Elucidating a novel apocarotenoid signalling pathway controlling root development in plants; Western Sydney University)
- 2019 Namraj Dhami; PhD (Environmental And Developmental Regulation Of Carotenoid Metabolism In Arabidopsis Leaves) - Western Sydney University
- 2014 John Rivers; PhD (RNA secondary structure and its effect upon gene expression in plants; co-supervised with Prof. Barry Pogson, Australian National University)
- 2012 Xin Hou; PhD (Hunting for genes that link cis-carotenes to chloroplast development; co-supervised with Prof. Barry Pogson, Australian National University)
- 2013 Sophie Holland (Honours: The molecular nature of metabolic feedback regulation in plants)
- 2012 Jacinta Watkins (Honours: cis-carotenes: Do they have regulatory roles in plants)
- 2010 Alice Burgess (Honours: Investigating the role and function of the chromatin modifying protein, SDG8 in plant development)
- 2009 Andrea Roberts (Honours: Characterisation of the histone methyltransferase SET DOMAIN GROUP 8, in Arabidopsis thaliana).
- 2007 Melanie Carmody (Honours: Characterisation of the CRTISO Promoter).
Selected Publications 
Book Chapters
Anwar S, Nayak J, Alagoz Y, Wojtalewicz D, Cazzonelli CI, (2022) 'Purification and use of carotenoid standards to quantify cis-trans geometrical carotenoid isomers in plant tissues', Methods in Enzymology: Carotenoids and Apocarotenoids. 670; pp 57-85
Biru FN, Cazzonelli CI, Elbaum R, Johnson SN, (2022) 'Contrasting impacts of herbivore induction and elevated atmospheric CO2 on silicon defences and consequences for subsequent herbivores', Entomologia Experimentalis et Applicata vol.170, no.8, pp 681-688
Chavan SG, Chen ZH, Ghannoum O, Cazzonelli CI, Tissue DT, (2022) 'Current technologies and target crops: A review on Australian protected cropping', MDPI Crops. 2; pp 172-185
Alagoz Y, Dhami N, Mitchel C and Cazzonelli, CI. (2020) cis/trans carotenoid extraction, purification, detection, quantification and profiling in plant tissues, in Plant and Food Carotenoids: Methods and Protocols, Methods in Molecular Biology, Ed. Manuel Rodríguez-Concepción and Ralf Welsch, Springer Science, Business Media New York, 2083:145-163.
Baranski R and Cazzonelli CI (2015) 'Carotenoid biosynthesis and regulation in plants'. In Carotenoids: Nutrition, Analysis and Technology (A. Kaczor and M. Baranska), pp 159-189, John Wiley & Sons, Ltd, Oxford
Cuttriss AJ, Cazzonelli CI, Wurtzel ET, Pogson BJ, (2011) 'Carotenoids', In Biosynthesis of Vitamins in Plants, Advances in Botanical Research, vol58. Ed. Rébeillé, F. and Douce, R. Elsevier, Amsterdam, The Netherlands, pp 1-36
Cazzonelli CI, Nisar N, Hussain D, Carmody M, Pogson BJ, (2010) 'Biosynthesis and Regulation of Carotenoids in Plants- micronutrients, vitamins and health benefits', In Plant Developmental Biology-Biotechnology Perspectives, vol.2, Ed. E.C. Pua and M.R. Davey Springer-Verlag Berlin Heidelberg, pp 117-137
Journal Articles
Islam, T, Anwar S, Cazzonelli CI, Moore B and Johnson SN (2025). Plant silicon disables cryptic colouration of an insect herbivore by reducing its ability to sequester carotenoids. Physiological Entomology, In Press
Anwar S, Happy, Dingley A, Vinoth T, Liang We, Sindel B, George L, Wang C, and Cazzonelli CI (2025). Sonic-induced cellular vibrations unzip intertwined anther cone trichomes to trigger floral self-pollination and boost tomato fruit size. Horticultural Research. uhaf053
Chavan SG, Samaranayake P, Lan Y-C, Maier C, Liang W, Cazzonelli CI, Chen Z-H, Tissue DT, (2025) 'Optimal energy-efficient shade screen and ventilation control settings for a greenhouse covered with light-altering films, Frontiers in Energy Research, 13, art. no. 1515479
Al-Mamun MH, Cazzonelli CI, Krishna P, (2024) 'BZR1 and BES1 transcription factors mediate brassinosteroid control over root system architecture in response to nitrogen availability', Frontiers in Plant Science, vol.15, art. no.1387321
Biru FN, Nayak J, Waterman J, Cazzonelli CI, Elbaum R and Johnson SN (2024). Elevated atmospheric CO2 and silicon antagonistically regulate anti-herbivore phytohormone and defence gene expression levels in wheat. Environmental and Experimental Botany, 227, 105950
Hou X, Alagoz Y, Welsch R, Mortimer MD, Pogson BJ, Cazzonelli CI, (2024) 'Reducing PHYTOENE SYNTHASE activity fine-tunes the abundance of a cis-carotene-derived signal that regulates the PIF3/HY5 module and plastid biogenesis', Journal of Experimental Botany, vol.75, no.4, pp 1187-1204
Kerr SC, Shehnaz S, Paudel L, Manivannan MS, Shaw LM, Johnson A, Velasquez JTJ, Tanurdzic M, Cazzonelli CI, Varkonyi-Gasic E, Prentis PJ, (2024) 'Advancing tree genomics to future proof next generation orchard production', Frontiers in Plant Science, vol.14, art no.1321555
Zhao C, Chavan S, Vandegeer RK, Siddique AB, Maier C, Liang W, Zhou M, Cazzonelli CI, Ghannoum O, Chen Z-H, Tissue DT, (2024) ''A glasshouse light blocking film impacts Capsicum mesophyll ionic homeostasis and stomatal dynamics through altering light conditions', Plant Growth Regulation, vol.104, no.3, pp 1507-1519
Babla MH, Donovan-Mak M, Cazzonelli CI, Tissue DT, Chen Z-H, (2023) 'Linking high light-induced cellular ionic and oxidative responses in leaves to fruit quality in tomato', Plant Growth Regulation, vol.101, no.1, pp 267-284
Biru FN, Cazzonelli CI, Elbaum R and Johnson SN (2023). Silicon-mediated herbivore defence in a pasture grass under reduced and Anthropocene levels of CO2. Frontiers in Plant Science 14:1268043.
Chavan SG, He X, Maier C, Alagoz Y, Anwar S, Chen Z-H, Ghannoum O, Cazzonelli CI, Tissue DT, (2023) 'An energy-saving glasshouse film reduces seasonal, and cultivar dependent Capsicum yield due to light limited photosynthesis', Annals of Agricultural Sciences, vol.68, no.1, pp 21 - 35
He X, Solis C, Chavan S, Maier C, Liang W, Klause N, Ghannoum O, Chen ZH, Cazzonelli CI, Tissue DT, and Chen ZH (2023). Novel transcriptome networks are associated with adaptation of capsicum fruit development to a light-blocking glasshouse film. Frontiers in Plant Science, 14:1280314
Maier CR, Chavan SG, Klause N, Liang W, Cazzonelli CI, Ghannoum O, Chen Z-H, Tissue DT, (2023) 'Light blocking film in a glasshouse impacts Capsicum annuum L. yield differentially across planting season', Frontiers in Plant Science, vol.14, Article no.1277037
Brenya E, Pervin M, Chen Z, Tissue D, Johnson SN, Braam J, Cazzonelli CI, (2022) 'Mechanical stress acclimation in plants: Linking hormones and somatic memory to thigmomorphogenesis', Plant Cell and Environment, nol.45, no.4, pp 989-1010
Chavan SG, Chen ZH, Ghannoum O, Cazzonelli CI, Tissue DT (2022) 'Current technologies and target crops: A review on Australian protected cropping', MDPI Crops, vol.2, pp 172-185
Dhami N, Pogson B, Tissue DT, Cazzonelli CI, (2022) 'A Foliar Pigment-Based Bioassay for Interrogating Chloroplast Signalling Reveals that Chlorophyll Biosynthesis Requires Carotenoid Isomerisation', BMC Plant Methods, vol.18, Article 18
Dingley A, Anwar S, Kristiansen P, Warwick N, Wang C, Sindel B, Cazzonelli CI, (2022) 'Precision pollination strategies for advancing horticultural tomato cropping in Australia', MDPI Agronomy, vol.12, no.2, p 518
He X, Chavan SG, Hamoui Z, Maier C, Ghannoum O, Chen ZH, Tissue DT, Cazzonelli CI, (2022) 'Smart Glass Film Reduced Ascorbic Acid in Red and Orange Capsicum Fruit Cultivars without Impacting Shelf Life', Plants-Basel, vol.11, no.7, Article no.985
Hill RA, Wong-Bajracharya J, Anwar S, Coles D, Wang M, Lipzen A, Ng V, Grigoriev IV, Martin F, Anderson IC, Cazzonelli CI, Jeffries T, Plett KL, Plett JM, (2022) 'Abscisic acid supports colonization of Eucalyptus grandis roots by the mutualistic ectomycorrhizal fungus Pisolithus microcarpus', New Phytologist, vol.233, no.2, pp 966-982
Lin T, Goldsworthy M, Chavan S, Liang W, Maier C, Ghannoum O, Cazzonelli C, Tissue DT, Lan Y-C, Sethuvenkatraman S, Lin H, Jia B, Chen Z-H, (2022) 'A novel cover material improves cooling energy and fertigation efficiency for glasshouse eggplant production', Energy, vol.251, Article no.123871
Maier CR, Chen ZH, Cazzonelli CI, Tissue DT, Ghannoum O (2022) 'Precise Phenotyping for Improved Crop Quality and Management in Protected Cropping: A Review', MDPI Crops, vol.2, no.4, pp 336-350
Nayak JJ, Anwar S, Krishna P, Chen Z-H, Plett JM, Foo E, Cazzonelli CI, (2022) 'Tangerine tomato roots show increased accumulation of acyclic carotenoids, less abscisic acid, drought sensitivity, and impaired endomycorrhizal colonization', Plant Science, vol.321, Article no.111308
Paudel L, Kerr S, Prentis P, Tanurdzic M, Papanikolaou A, Plett J, Cazzonelli CI, (2022) 'Horticultural Innovation by Viral-Induced Gene Regulation of Carotenogenesis', Horticulture Research, vol.9, Article uhab008
Anwar S, Brenya E, Alagoz Y, Cazzonelli CI, (2021) 'Epigenetic control of carotenogenesis during plant development', Critical Reviews in Plant Sciences, vol.40, no.1, pp 23-48
Biru FN, Islam T, Cibils-Stewart X, Cazzonelli CI, Elbaum R, Johnson SN, (2021) 'Anti-herbivore silicon defences in a model grass are greatest under Miocene levels of atmospheric CO2', Global Change Biology, vol.27, no.12, pp 2959-2969
Dhami N, Cazzonelli CI, (2021) 'Short photoperiod attenuates CO2 fertilization effect on shoot biomass in Arabidopsis thaliana', Physiology and Molecular Biology of Plants, vol.27, pp 825–834
He X, Maier C, Chavan S, Chenchen Z, Alagoz Y, Cazzonelli CI, Ghannoum O, Tissue DT, Chen ZH, (2021) 'Light-altering Cover Materials and Sustainable Greenhouse Production of Vegetables: A Review', Plant Growth Regulation, vol.95, pp 1-17
Waterman JM, Cibils-Stewart X, Cazzonelli CI, Hartley SE, Johnson SN, (2021) 'Short-term exposure to silicon rapidly enhances plant resistance to herbivory', Ecology, vol.102, no.9, Article no.e03438
Waterman JM, Hall CR, Mikhael M, Cazzonelli CI, Hartley SE, Johnson SN, (2021) 'Short-term resistance that persists: Rapidly induced silicon anti-herbivore defence affects carbon-based plant defences', Functional Ecology, vol.35, no.1, pp 82-92
Zhao C, Chavan S, He X, Zhou M, Cazzonelli CI, Chen Z-H, Tissue DT, Ghannoum O, (2021) 'Smart glass impacts stomatal sensitivity of greenhouse Capsicum through altered light', Journal of Experimental Botany, vol.72, no.8, pp 3235–3248
Babla MH, Tissue DT, Cazzonelli CI, Chen Z-H, (2020) 'Effect of high light on canopy-level photosynthesis and leaf mesophyll ion flux in tomato', Planta, vol.252, no.5, Article no.80
Biru FN, Cazzonelli CI, Elbaum R, Johnson SN, (2020) 'Contrasting effects of Miocene and Anthropocene levels of atmospheric CO2 on silicon accumulation in a model grass', Biology letters, vol.16, no.11, p 20200608
Brenya E, Chen Z-H, Tissue D, Papanicolaou A, Cazzonelli CI, (2020) 'Prior exposure of Arabidopsis seedlings to mechanical stress heightens jasmonic acid-mediated defense against necrotrophic pathogens', BMC Plant Biology, vol.20, no.1, Article no.548
Cazzonelli CI, Hou X, Alagoz Y, Rivers J, Dhami N, Lee J, Marri S, Pogson BJ, (2020) 'A cis-carotene derived apocarotenoid regulates etioplast and chloroplast development', ELife, vol.9, Article no.e45310
Chavan SG, Maier C, Alagoz Y, Filipe JC, Warren CR, Lin H, Jia BH, Loik ME, Cazzonelli CI, Chen ZHH, Ghannoum O, Tissue DT, (2020) 'Light-limited photosynthesis under energy-saving film decreases eggplant yield', Food and Energy Security, Article no.e245
Dhami N, Cazzonelli, CI, (2020) 'Environmental impacts on carotenoid metabolism in leaves', Plant Growth Regulation, vol.92, pp 455-477
Dhami N, Cazzonelli CI, (2020) 'Prolonged cold exposure to Arabidopsis juvenile seedlings extends vegetative growth and increases the number of shoot branches', Plant Signaling and Behavior, Article no.1789320
Dhami N, Drake JE, Tjoelker MG, Tissue DT, Cazzonelli CI, (2020) ' An extreme heatwave enhanced the xanthophyll de-epoxidation state in leaves of Eucalyptus trees grown in the field', Physiology and Molecular Biology of Plants, vol.26, no.2, pp 211-218
Waterman JM, Mann TJ, Cazzonelli CI, Hartley SE, Johnson SN, (2020) 'Microbes in Helicoverpa armigera oral secretions contribute to increased senescence around plant wounds', Ecological Entomology, vol.45, no.5, pp 1224-1229
Babla M, Cai S, Chen G, Tissue DT, Cazzonelli CI, Chen Z-H, (2019) 'Molecular Evolution and Interaction of Membrane Transport and Photoreception in Plants', Frontiers in Genetics, vol.10, Article no.956
Khan SS, Cazzonelli CI, Kurata H, Li CG, Badsha B, Munch G, Majid AMSA (2019). Advancing herbal medicine through metabolic pathway analysis in plants and animals for routine pharmacological assessments. Advances in Integrative Medicine, vol.6, no.1, pp S106-S107
Khan SS, Cazzonelli CI, Kurata H, Li CG, Badsha B, Munch G, Majid AMSA (2019). Advancing herbal medicine through metabolic pathway analysis in plants and animals for routine pharmacological assessments. Australian Herbal Insight, vol.2, no.1, pp 28-37
Waterman JM, Cazzonelli CI, Hartley SE, Johnson SN, (2019) 'Simulated Herbivory: The Key to Disentangling Plant Defence Responses', Trends in Ecology & Evolution, vol.34, no.5, pp 447-458
Alagoz Y, Nayak P, Dhami N, Cazzonelli CI, (2018) 'cis-carotene biosynthesis, evolution and regulation in plants: The emergence of novel signaling metabolites', Archives of Biochemistry and Biophysics, vol.654, pp 172-184
Dhami N, Tissue DT, Cazzonelli CI, (2018) 'Leaf-age dependent response of carotenoid accumulation to elevated CO2 in Arabidopsis', Archives of Biochemistry and Biophysics, vol.647, pp 67-75
Schaub P, Rodriguez-Franco M, Cazzonelli CI, Alvarez D, Wuest F, Welsch R, (2018) 'Establishment of an Arabidopsis callus system to study the interrelations of biosynthesis, degradation and accumulation of carotenoids', Plos One, vol.13, no.2, Article no.e0192158
Pornsiriwong W, Estavillo GM, Chan KX, Tee EE, Ganguly D, Crisp PA, Phua SY, Zhao CC, Qiu J, Park J, Yong MT, Nisar N, Yadav AK, Schwessinger B, Rathjen J, Cazzonelli CI, Wilson PB, Gilliham M, Chen ZH, Pogson BJ, (2017) 'A chloroplast retrograde signal, 3 '-phosphoadenosine 5 '-phosphate, acts as a secondary messenger in abscisic acid signaling in stomatal closure and germination', Elife, vol.6, Article no.e23361
Zhang B, Aken OV, Thatcher L, Clercq ID, Duncan O, Law SR, Murcha MW, van der Merwe M, Seifi HS, Carrie C, Cazzonelli CI, Radomiljac J, Höfte M, Singh KB, Breusegem FV, Whelan J, (2014) 'The mitochondrial outer membrane AAA ATPase AtOM66 affects cell death and pathogen resistance in Arabidopsis thaliana', Plant Journal, (in press)
Avendano-Vazquez AO, Cordoba E, Llamas E, San Roman C, Nisar N, De la Torre S, Ramos-Vega M, Gutierrez-Nava MD, Cazzonelli CI, Pogson BJ, Leon P, (2014) 'An Uncharacterized Apocarotenoid-Derived Signal Generated in zeta-Carotene Desaturase Mutants Regulates Leaf Development and the Expression of Chloroplast and Nuclear Genes in Arabidopsis', Plant Cell, vol.26, no.6, pp 2524-2537
Cazzonelli CI, Nisar N, Roberts AC, Murray KD, Borevitz JO, Pogson BJ, (2014) 'A chromatin modifying enzyme, SDG8, is involved in morphological, gene expression, and epigenetic responses to mechanical stimulation', Frontiers in Plant Science, vol.5, Article no.533
Nisar N, Cuttriss AJ, Pogson BJ, Cazzonelli CI, (2014) 'The promoter of the Arabidopsis PIN6 auxin transporter enabled strong expression in the vasculature of roots, leaves, floral stems and reproductive organs' (opens in a new window), Plant Signaling & Behavior,vol.9, no.1, e27898
Van Norman JM, Zhang J, Cazzonelli CI, Pogson BJ, Harrison PJ, Bugg TD, Chan KX, Thompson AJ, Benfey PN, (2014) 'Periodic root branching in Arabidopsis requires synthesis of an uncharacterized carotenoid derivative' (opens in a new window), Proceedings ot the National Academy of Sciences of the USA, vol.111, no.13, pp E1300-E1309
Cazzonelli CI, Vanstraelen M, Simon S, Yin K, Carron-Arthur A, Mathesius U, Cuttriss AJ, Tarle G, Searle I, Masle J, Benkova E, Friml J, Pogson BJ, (2013) 'Role Of The Arabidopsis PIN6 Auxin Transporter In Auxin Homeostasis And Auxin-Mediated Development' (opens in a new window), PLoS One, vol.8, no.7, article no.e70069
Velten J, Cakir C, Youn E, Chen J, Cazzonelli CI, (2012) 'Transgene Silencing and Transgene-derived siRNA Production in Tobacco Plants Homozygous for an Introduced AtMYB90 Construct' (opens in a new window), PLoS One, vol.7, no.2, article no.e30141
Cazzonelli CI, (2011) 'Carotenoids in Nature: insights from plants and beyond' (opens in a new window), Functional Plant Biology, vol.38, pp 833–847
Cazzonelli CI, Pogson BJ, (2010) 'Source and Sink: regulation of carotenoid composition in plants', Trends in Plant Science, vol.15, no.5, pp 266-274
Cazzonelli CI, Roberts A, Carmody M, Pogson BJ, (2010) 'Transcriptional Control of SET DOMAIN GROUP8 and CAROTENOID ISOMERASE during Arabidopsis Development' (opens in a new window), Molecular Plant, vol.3, no.1, pp 174-191
Velten J, Chakir C, Cazzonelli CI, (2010) 'A spontaneous dominant-negative mutation within a 35S::AtMYB90 transgene inhibits flower pigment production in tobacco' (opens in a new window), PLoS One, vol.5, no.3, article no. e9917
Wever W, McCallum EJ, Chakravorty D, Cazzonelli CI, Botella JR, (2010) 'The 5 ′ untranslated region of the VR-ACS1 mRNA acts as a strong translational enhancer in plants' (opens in a new window), Transgenic Research, vol.19, no.4, pp 667-674
Cazzonelli CI, Cuttriss AJ, Cossetto SB, Pye W, Crisp P, Whelan J, Finnegan J, Turnbull C, Pogson BJ, (2009) 'Regulation of carotenoid composition and shoot branching in Arabidopsis by a chromatin modifying histone methyltransferase, SDG8' (opens in a new window), Plant Cell, vol.21, no.1, pp 39-53
Cazzonelli CI, Millar T, Finnegan J, Pogson BJ, (2009) 'Promoting gene expression in plants by permissive histone lysine methylation' (opens in a new window), Plant Signaling & Behavior, vol.4, no.6, pp 484-488
Cazzonelli CI, Yin K, Pogson BJ, (2009) 'Potential implications for epigenetic regulation of carotenoid biosynthesis during root and shoot development' (opens in a new window), Plant Signaling & Behavior, vol.4, no.4, pp 339-341
Howitt CA, Cavanagh C, Bowerman AF, Cazzonelli CI, Rampling L, Mimica JL, Pogson BJ, (2009) 'Alternative splicing, activation of cryptic exons and amino acid substitutions in carotenoid biosynthetic genes are associated with lutein accumulation in wheat endosperm' (opens in a new window), Functional and Integrative Genomics, vol.9, pp 363-373
Cazzonelli CI, Velten JP, (2008) 'In vivo characterisation of plant promoter element interaction using synthetic promoters' (opens in a new window), Transgenic Research, vol.17, pp 437–457
Cazzonelli CI, Velten JP, (2006) 'An in vivo luciferase-based transient assay system using Agrobacteria-infiltrated tobacco leaves: implications for post-transcriptional gene silencing' (opens in a new window), Planta, vol.224, pp 582-597
Cazzonelli CI, Burke J, Velten JP, (2005) 'Functional characterization of the geminiviral conserved late element (CLE) in uninfected tobacco', Plant Molecular Biology, vol.58, no.4), pp 465-481
Cazzonelli CI, McCallum E, Lee, R, Botella JR, (2005) 'Characterisation of a strong, constitutive mung bean (Vigna radiata L.) promoter with a complex mode of regulation in planta', Transgenic Research, vol.14, pp 941-967
Schaub P, Rodriguez-Franco M, Cazzonelli CI, Alvarez D, Wust F, Welsch R (2018). Establishment of an Arabidopsis callus system to study the interrelations of biosynthesis, degradation and accumulation of carotenoids. PLoS ONE 13(2): e0192158. https://doi.org/10.1371/journal.pone.0192158 (opens in a new window)
Velten JP, Morey K, Cazzonelli CI, (2005) 'Plant viral intergenic DNA sequence repeats with transcriptional enhancing activity', Virology Journal, vol.2, no.1, p 16
Patents
Cazzonelli CI and Botella JR (1998). Patent Application No. PP5572/98 "A Novel Plant Promoter and Uses Therefor" The present invention provides a plant promoter capable of induction by physical and/or environmental stimuli in cells in which the promoter is indigenous and, in the absence of any negative regulatory mechanism, is capable of constitutive expression in cells in which the promoter is non-indigenous.
The invention is further directed to derivatives of the subject promoter including modular forms of the promoter which are, for example, inducible by different physical and environmental stimuli or which are constitutively expressed. The promoter of the present invention has a range of uses including directing expression of genes conferring useful traits on plants. UniQuest Pty Limited, University of Queensland, Brisbane, Australia
Media Coverage
Technicolour glasshouse offers energy saving productivity potential
From darkness to light: New findings unravel how plants control energy generation
Grants / Current Projects
- 2024 NSW Space Research Network Student Project Fund ($10,000). Establishing Plants in Space Biology Payload for Future Lunar Experiments. CI Cazzonelli, M Manivannan, Happy, A Biswas
- 2024-2029 Hort Innovation, QUT, WSU, UQ, MU (AS23003; $2,120,816) Genetics for Next Generation Orchards. 2024 NSW Space Research Network Student Project Fund ($10,000). CI Cazzonelli, R Sharwood, O Ghannoum, DT Tissue
- 2024 NSW Space Research Network. Flight testing for a future lunar payload.
- 2023-2028 Future Food Systems Cooperative Research Centre ($2,992,758). Automated crop monitoring for protected cropping systems. O Ghannoum, DT Tissue, R Sharwood, CI Cazzonelli, Z Chen
- 2022-2027 Future Food Systems Cooperative Research Centre, Horticulture Innovation Australia, RMIT University, Innofocus Photonics Technology ($3,562,472). National Vegetable Protected Cropping Centre - Glasshouse films to reduce energy use and increase resource use efficiency. DT Tissue, O Ghannoum, CI Cazzonelli, R. Sharwood, Z Chen, Y Lan
- 2021-2022 Future Food Systems Cooperative Research Centre (P2-013; $240,000). Smart Glass film impacts on energy use and productivity in greenhouse lettuce. DT Tissue, Z Chen, CI Cazzonelli, O Ghannoum, R Sharwood
- 2021 Advancing an acoustic-induced pollination solution for protected cropping (CRC in Future Food Systems and Perfection Fresh; $59,632)
- 2020-2029 Cooperative Research Centre in Future Food Systems ($35 million)
- 2018-2022 Hort Innovation (AS1700; $3,785,714) - National Tree Genomics Program - Genotype Prediction Toolbox. Dr Chris Cazzonelli, DR Jonathon Plett and Dr Alexie Papanikolaou)
- 2017-2020 Horticulture Innovation Australia Grant (VG16070: $799,071) Research and Operations to Trial Innovation Glass and Photovoltaic technologies in Protected Cropping. David Tissue, Zhonghua Chen, Chris Cazzonelli, Oula Ghannoum, Ian Anderson, Nisha Rakhesh & David Thompson
- 2013-ARC Discovery Grant (DP130102593; $375,000). The Hunt for RNA Riboswitches and Genetic Sensors of Metabolic Flux in Plants. Cazzonelli CI (Lead Investigator), Pogson BJ, Aharoni, A.
- 2008-ARC Linkage Infrastructure, Equipment and Facilities ($550,000). A massively parallel genome analysis facility for the ACT region (LE0989589).
Areas Of Research
- Molecular biology
- genomics
- epigenetics
- RNA regulation
- riboswitches
- secondary metabolism
- carotenoids
- anthocyanin
- chlorophyll
- plant energy biology
- organelle signalling
- cellular communication
- genetic engineering
- crop biofortication
- environmental stress regulation
- plant acclimation and adaptation
- Curcumin
- Thermoswitch
- Tomato
- Arabidopsis
- Turmeric
To discuss opportunities within the Epigenetics and Plant Molecular Biology field, please contact me on (02) 4570 1752 or by email on c.cazzonelli@westernsydney.edu.au.
The EELab celebrates may achievements, awards, graduations, grants, and papers from a successful 2024 year at our annual Christmas party.
The EELaboratory continues to grow in 2023 as we unravel genetic as well as metabolic signals enabling foliar photoprotection, bud dormancy, flowering, floral pollination and fruit nutrition as core traits for advancing next generation horticultural protected and orchard
EELab celebration time 2022
The EElab had a going away BBQ for Namraj Dhami at Hanna Park in North Richmond
2018 Jessica Tyler (HIE Summer Scholar: Mechanical stress training primes plant defense responses).
The EElab enjoyed their 2017 Christmas party and BBQ at the McMahon Park in Kurrajong.
Undergraduate student, Ms Jessica Tyler recently completed her WSU-HIE Research Internship within the EELab in Autumn of 2017. She and her supervisor Mr Eric Brenya discovered new insights into how mechanical stress can alter defences to different plant pathogens.
EElab members enjoyed their 2016 Christmas party at The Blue Mountains Botanic Garden at Mount Tomah.
Ms Laura Lynch undertook a Summer Scholarship with the EELab under supervision of PhD student Yagiz Alagoz. Together they explored how feedback regulation of carotenoid secondary metabolism might be regulated by an RNA regulatory switch using molecular tools to quantify luminescence in transgenic plants expressing synthetic riboregulators.
The EEL team enjoys the nature of spring and welcomes PhD candidate Yagiz Alagoz as well as HIE internship awardee Jordan Hollis (left to right: Jordan Hollis, Dr Rishi Aryal, Mr Eric Brenya, Mr Namraj Dhami, Mr Yagiz Alagoz and Dr Chris Cazzonelli).
Epigenetics in Nature: EELab First Christmas Party 2015 with Rishi Aryal, Namraj Dhami, Eric Brenya and Chris Cazzonelli at a secret location in the Kurrajong Heights

The EEL team continues to grow and welcomes new PhD candidate Namraj Dhami and HIE internship awardee Tracey Azzopardi (left to right: Ms Tracey Azzopardi, Dr Rishi Aryal, Mr Namraj Dhami and Dr Chris Cazzonelli).

2024 Happy was awarded People’s Choice Visa Card at the Hawkesbury Institute for the Environment Higher Degree Forum Conference and won best poster prize at the HIE Research Symposium

2022 PhD students, Lucky Paudel and Mekala Manivannan won first and second place, respectively at the WSU - Hawkesbury Institute for the Environment Higher Degree Forum Conference
2022 Mahfuza Pervin wins Australian Society of Plant Scientists (ASPS) prize for her poster titled: Prolonged mechanical stress events have contra-regulatory effects on carotenoid and ABA biosynthesis in Arabidopsis rosette leaves at ComBio2022.
2021 Nayak J. Best talk in the session: Carotenoid Biosynthesis & Biotechnology” at the 2nd Virtual International Conference on Carotenoids
HDR student Yagiz Alagoz for winning best poster presentation award at the prestigious 9th Gordon Research Conference on Carotenoids
Eric Brenya wins E.A. Southee Memorial Scholarship for his proposal on ELUCIDATING HOW MECHANICAL STIMULATION PROMOTES STRESS-ACCLIMATION IN PLANTS
2017 Grace Scott; NSW Chris Russell Medal of Excellence for undergraduate research on the regulation of carotenoid micronutrients in plants
2010 Dr Chris Cazzonelli; Australian Society of Plant Scientists Peter Goldacre Medal for outstanding contribution to Plant Science
Awards & Recognition
» 2010 Peter Goldacre Medal from the Australian Society of Plant Scientists (awarded yearly to an early career researcher for their outstanding contribution to Plant Science within 10 years of their PhD)
» 2003-05 Outstanding Performance Certificates of Merit (United States Department of Agriculture)
» 2001-03 USDA-ARS Post-Doctoral Fellowship
» 1996-99 Australian Postgraduate Award