A5071220342- Plant Molecular Biology Research
- Plant Parasitism and Resistance
- Plant and animal studies
- Plant Reproductive Biology
- Plant nutrient uptake and metabolism
- Agronomic Practices and Intercropping Systems
- Plant Gene Expression Analysis
- Legume Nitrogen Fixing Symbiosis
- Law, Economics, and Judicial Systems
- Medical Malpractice and Liability Issues
- Plant Stress Responses and Tolerance
- Bioenergy crop production and management
- American Environmental and Regional History
- Insect and Pesticide Research
- Allelopathy and phytotoxic interactions
- Plant Pathogens and Resistance
- Plant Micronutrient Interactions and Effects
- Ruminant Nutrition and Digestive Physiology
- Seed Germination and Physiology
- Light effects on plants
- Nematode management and characterization studies
- Criminal Law and Evidence
- Legal principles and applications
- Plant tissue culture and regeneration
- Insect-Plant Interactions and Control
Central Queensland University
2024
Australian Research Council
2009-2023
The University of Adelaide
2019-2023
The University of Queensland
2008-2023
ARC Centre of Excellence for Plant Success in Nature and Agriculture
2023
ARC Centre of Excellence in Plant Energy Biology
2019-2022
Agricultural Research Organization
2012
Ghent University
2012
Bar-Ilan University
2012
VIB-UGent Center for Plant Systems Biology
2012
Polar flow of the phytohormone auxin requires plasma membrane-associated PIN proteins and underlies multiple developmental processes in plants. Here we address importance polarity subcellular localization for directionality transport Arabidopsis thaliana. Expression different PINs root epidermis revealed polar positions directional gravitropic growth. Interfering with sequence-embedded signals directly demonstrates that is a primary factor determining direction meristematic tissues. This...
Abstract During the last century, two key hypotheses have been proposed to explain apical dominance in plants: auxin promotes production of a second messenger that moves up into buds repress their outgrowth, and saturation stem inhibits transport from buds, thereby inhibiting bud outgrowth. The recent discovery strigolactone as novel shoot-branching inhibitor allowed us test its mode action relation these hypotheses. We found exogenously applied inhibited outgrowth pea (Pisum sativum) even...
Long distance cell-to-cell communication is critical for the development of multicellular organisms. In this respect, plants are especially demanding as they constantly integrate environmental inputs to adjust growth processes different conditions. One example thickening shoots and roots, also designated secondary growth. Secondary mediated by vascular cambium, a stem cell-like tissue whose cell-proliferating activity regulated over long plant hormone auxin. How auxin signaling integrated at...
Adventitious root formation is essential for the propagation of many commercially important plant species and involves roots from nonroot tissues such as stems or leaves. Here, we demonstrate that hormone strigolactone suppresses adventitious in Arabidopsis (Arabidopsis thaliana) pea (Pisum sativum). Strigolactone-deficient response mutants both have enhanced rooting. CYCLIN B1 expression, an early marker initiation primordia Arabidopsis, more axillary growth2 (max2), a mutant, suggesting...
Significance Strigolactone hormones regulate many plant growth and developmental processes are particularly important in regulating response to nonoptimal conditions. Plants produce a range of bioactive strigolactone-like compounds, suggesting that the biosynthesis pathway is complex. Despite this complexity, only one type enzyme, MORE AXILLARY GROWTH1 (MAX1) cytochrome P450, has been attributed diversity strigolactones. Using transcriptomics reverse genetics, we discovered previously...
Strigolactones (SLs) are plant hormones that suppress lateral shoot branching, and act to regulate root hair elongation formation. Here, we show SLs regulators of perception or response low inorganic phosphate (Pi) conditions. This regulation is mediated by MORE AXILLARY GROWTH2 (MAX2) correlated with transcriptional induction the auxin receptor TRANSPORT INHIBITOR RESPONSE1 (TIR1). Mutants SL signaling (max2-1) biosynthesis (max4-1) showed reduced Pi conditions relative wild type. In...
Abstract Strigolactones (SLs) are carotenoid-derived plant hormones that regulate shoot branching, secondary growth, root development, and responses to soil phosphate. In Arabidopsis (Arabidopsis thaliana), SL biosynthesis requires the sequential action of two carotenoid cleavage dioxygenases, MORE AXILLARY GROWTH3 (MAX3) MAX4, followed by a cytochrome P450, MAX1. rice (Oryza sativa), plastid-localized protein DWARF27 (OsD27) is also necessary for biosynthesis, but equivalent gene in has not...
The outgrowth of axillary buds into branches is regulated systemically via plant hormones and the demand growing shoot tips for sugars. hormone auxin thought to act two mechanisms. One mechanism involves regulation systemic signals, cytokinins strigolactones, which can move buds. other suppression transport/canalization from main stem enhanced by a low sink in stem. In this theory, relative ability transport controls bud outgrowth. Here, we evaluate whether required or during pea (Pisum...
Abstract Directional transport of the phytohormone auxin is a versatile, plant-specific mechanism regulating many aspects plant development. The recently identified hormones, strigolactones (SLs), are implicated in traits; among others, they modify phenotypic output PIN-FORMED (PIN) transporters for fine-tuning growth and developmental responses. Here, we show pea Arabidopsis that SLs target processes dependent on canalization flow, which involves feedback PIN subcellular distribution. D14...
Perianth development is specifically disrupted in mutants of the PETAL LOSS (PTL) gene, particularly petal initiation and orientation. We have cloned PTL show that it encodes a plant-specific trihelix transcription factor, one family previously known only as regulators light-controlled genes. transcripts were detected early-developing flower, four zones between initiating sepals their developing margins. Strong misexpression range tissues universally results inhibition growth, indicating its...
In all multicellular organisms extensive communication is required between cells and tissues in order to coordinate growth development. Both plants animals have signaling chemicals, traditionally termed hormones that mediate short- long-distance communication. The first phytohormone be discovered was auxin, a substance has since been implicated an increasingly wide variety of developmental processes. It emerged from decades studies unique property auxin - its directional movement (polar...