A5015249999- Plant Parasitism and Resistance
- Plant and animal studies
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Wheat and Barley Genetics and Pathology
- Genetic diversity and population structure
- Light effects on plants
- Allelopathy and phytotoxic interactions
- Leaf Properties and Growth Measurement
- Plant Stress Responses and Tolerance
- Transgenic Plants and Applications
- Greenhouse Technology and Climate Control
- Evolution and Genetic Dynamics
- Genetic Mapping and Diversity in Plants and Animals
- Legume Nitrogen Fixing Symbiosis
- Plant Gene Expression Analysis
- Plant tissue culture and regeneration
- Smart Agriculture and AI
- Phytoplasmas and Hemiptera pathogens
- Plant and Fungal Species Descriptions
University of California, Davis
2019-2024
University of California, Riverside
2023-2024
Plants are constantly exposed to volatile organic compounds (VOCs) that released during plant-plant communication, within-plant self-signaling, and plant-microbe interactions. Therefore, understanding VOC perception downstream signaling is vital for unraveling the mechanisms behind information exchange in plants, which remain largely unexplored. Using hormone-like function of terpenoids reproductive organ development as a system with visual marker we demonstrate petunia karrikin-insensitive...
Strigolactones (SLs) are a unique and novel class of phytohormones that regulate numerous processes growth development in plants. Besides their endogenous functions as hormones, SLs exuded by plant roots to stimulate critical interactions with symbiotic fungi but can also be exploited parasitic plants trigger seed germination. In the past decade, since discovery phytohormones, rapid progress has been made understanding SL biosynthesis signaling pathway. Of particular interest diversification...
Abstract Cryptochromes (CRYs) are evolutionarily conserved photoreceptors that mediate various light-induced responses in bacteria, plants, and animals. Plant cryptochromes govern a variety of critical growth developmental processes including seed germination, flowering time entrainment the circadian clock. CRY’s photocycle involves reduction their flavin adenine dinucleotide (FAD)-bound chromophore, which is completely oxidized dark semi to fully reduced light signaling-active state....
Abstract KAI2 proteins are plant α/β hydrolase receptors which perceive smoke-derived butenolide signals and endogenous, yet unidentified KAI2-ligands (KLs). The number of functional varies among species gene duplication sub-functionalization likely plays an adaptative role by altering specificity towards different KLs. Legumes represent one the largest families flowering plants contain many agronomic crops. Prior to their diversification, underwent resulting in KAI2A KAI2B. Here we...
Abstract Karrikins (KARs) are chemicals in smoke that can enhance germination of many plants. Lettuce (Lactuca sativa) cv. Grand Rapids germinates response to nanomolar karrikinolide (KAR1). is much less responsive KAR2 or a mixture synthetic strigolactone analogs, rac-GR24. We investigated the molecular basis selective and sensitive KAR1 perception lettuce. The lettuce genome contains two copies KARRIKIN INSENSITIVE2 (KAI2), which Arabidopsis (Arabidopsis thaliana) encodes receptor required...
Direct observation is central to our understanding of adaptation, but evolution rarely documented in a large, multicellular organism for more than few generations. In this study, we observed across century-scale competition experiment, barley composite cross II (CCII). CCII was founded 1929 Davis, California, with thousands genotypes, found that natural selection has massively reduced genetic diversity, leading single lineage constituting most the population by generation 50. Selection...
Abstract Karrikins (KARs) are bioactive molecules derived from burning vegetation. Plants perceive KARs through the α/β hydrolase KARRIKIN INSENSITIVE 2 (KAI2) that interacts with F-box protein ubiquitin ligase MORE AXILLARY GROWTH (MAX2). MAX2 also plays a role in perception and signal activation by Strigolactone (SL), phytohormone controlling various developmental processes plants. SL acts as rhizosphere to activate arbuscular mycorrhiza fungi can be exploited parasitic kai2 knockouts...
Abstract Direct observation is central to our understanding of the process adaptation, but evolution rarely documented in a large, multicellular organism for more than few generations. Here, we observe genetic and phenotypic across century-scale competition experiment, barley composite cross II (CCII). CCII was founded 1929 with tens thousands unique genotypes has been adapted local conditions Davis, CA, USA 58 We find that natural selection massively reduced diversity leading single clonal...
Abstract KAI2 proteins, classified as plant α/β hydrolase receptors, are capable of perceiving smoke- derived butenolide signals and endogenous, yet unidentified KAI2-ligands (KLs). While the number functional receptors varies among land species, rice possesses only one gene. Rice, a significant crop representative grasses, relies on KAI2-mediated Arbuscular mycorrhiza (AM) symbioses to flourish in traditionally arid nutrient-poor environments. This study presents first crystal structure an...
Abstract KAI2 are plant α/β hydrolase receptors, which perceive smoke-derived butenolide signals (karrikins) and putative endogenous, yet unidentified phytohormones (KAI2-ligands, KLs). The number of functional receptors varies among species. It has been suggested that gene duplication sub-functionalization plays an adaptative role for diverse environments or ligand diversification by altering the receptor responsiveness to specific KLs. Legumes represent one largest families flowering...
Abstract Cryptochromes (CRYs) are evolutionarily conserved photoreceptors that mediate various light-induced responses in bacteria, plants, and animals. Plant cryptochromes govern a variety of critical growth developmental processes including seed germination, flowering time entrainment the circadian clock. CRY’s photocycle involves reduction their flavin adenine dinucleotide (FAD)-bound chromophore, which is completely oxidized dark semi to fully reduced light signaling-active state....
ABSTRACT Karrikins (KARs) are chemicals in smoke that can enhance germination of many plants. Lactuca sativa cv . Grand Rapids (lettuce), germinates the presence nanomolar karrikinolide (KAR 1 ). We found lettuce is much less responsive to KAR 2 or a mixture synthetic strigolactone analogs, rac -GR24. investigated molecular basis selective and sensitive perception lettuce. The genome contains two copies KARRIKIN INSENSITIVE2 ( KAI2 ), receptor required for responses Arabidopsis thaliana....