A5083671453- Plant Molecular Biology Research
- Plant Stress Responses and Tolerance
- Photosynthetic Processes and Mechanisms
- Light effects on plants
- Plant-Microbe Interactions and Immunity
- Redox biology and oxidative stress
- Plant nutrient uptake and metabolism
- Plant Growth Enhancement Techniques
- Plant Gene Expression Analysis
- Plant Reproductive Biology
- Heat shock proteins research
- Plant Virus Research Studies
- Endoplasmic Reticulum Stress and Disease
- Plant Pathogenic Bacteria Studies
- Plant tissue culture and regeneration
- Ubiquitin and proteasome pathways
- Legume Nitrogen Fixing Symbiosis
- Genomics, phytochemicals, and oxidative stress
- Plant Parasitism and Resistance
- Circadian rhythm and melatonin
- Composting and Vermicomposting Techniques
- Autophagy in Disease and Therapy
- Insect and Pesticide Research
- Bee Products Chemical Analysis
- Plant responses to elevated CO2
Gyeongsang National University
2016-2025
Biotechnology Research Center
2013-2016
The Ohio State University
2003-2010
Institute of Plant Biology
2006
University of Liverpool
2006
HUN-REN Szegedi Biológiai Kutatóközpont
2006
Hungarian Academy of Sciences
2006
University of Edinburgh
2006
University of Warwick
2006
Kenyon College
2005
The plasma membrane sodium/proton exchanger Salt-Overly-Sensitive 1 (SOS1) is a critical salt tolerance determinant in plants. SOS2–SOS3 calcium-dependent protein kinase complex up-regulates SOS1 activity, but the mechanistic details of this crucial event remain unresolved. Here we show that maintained resting state by C-terminal auto-inhibitory domain target SOS2–SOS3. interacts intramolecularly with an adjacent essential for activity. relieved from auto-inhibition upon phosphorylation...
Switching from repressed to active status in chromatin regulation is part of the critical responses that plants deploy survive an ever-changing environment. We previously reported HOS15, a WD40-repeat protein, involved histone deacetylation and cold tolerance Arabidopsis However, it remained unknown how HOS15 regulates responsive genes affect tolerance. Here, we show interacts with deacetylase 2C (HD2C) both proteins together associate promoters cold-responsive COR genes, COR15A COR47 Cold...
To control net sodium (Na + ) uptake, Arabidopsis plants utilize the plasma membrane (PM) Na /H antiporter SOS1 to achieve efflux at root and loading into xylem, channel-like HKT1;1 protein that mediates reverse flux of unloading off xylem. Together, these opposing transport systems govern partition within plant yet they must be finely co-regulated prevent a futile cycle xylem unloading. Here, we show SOS3 acts as molecular switch governing fluxes by favoring recruitment PM its subsequent...
Summary Loss‐of‐function siz1 mutations caused early flowering under short days. plants have elevated salicylic acid (SA) levels, which are restored to wild‐type levels by expressing nahG , bacterial salicylate hydroxylase. The of was suppressed indicating that SIZ1 represses the transition mainly through suppressing SA‐dependent floral promotion signaling Previous results shown exogenous SA treatment does not suppress late autonomous pathway mutants. However, mutation accelerated time an...
Abstract As an F-box protein, ZEITLUPE (ZTL) is involved in targeting one or more substrates for ubiquitination and degradation via the proteasome. The initial characterization of ZTL suggested a function limited largely to regulation circadian clock. Here, we show considerably broader role control period photomorphogenesis. Using ZTL-specific antibody, quantitated characterized dosage series that ranges from null mutation strong overexpressor. In dark,ztl mutations lengthen period,...
Although a role for microRNA399 (miR399) in plant responses to phosphate (Pi) starvation has been indicated, the regulatory mechanism underlying miR399 gene expression is not clear. Here, we report that AtMYB2 functions as direct transcriptional activator Arabidopsis (Arabidopsis thaliana) Pi signaling. Compared with untransformed control plants, transgenic plants constitutively overexpressing showed increased miR399f and tissue contents under high growth exhibited elevated of subset...
Circadian clock systems help establish the correct daily phasing of behavioral, developmental, and molecular events needed for proper coordination physiology metabolism. The circadian oscillator comprises transcription-translation feedback loops but also requires post-translational processes that regulate protein homeostasis. GIGANTEA is a unique plant involved in maintenance control numerous facets development. Through an unknown mechanism stabilizes F-box ZEITLUPE, key regulator clock....
Since the original discovery of a Universal Stress Protein (USP) in Escherichia coli, number USPs have been identified from diverse sources including archaea, bacteria, plants, and metazoans. As their name implies, these proteins participate broad range cellular responses to biotic abiotic stresses. Their physiological functions are associated with ion scavenging, hypoxia responses, mobility, regulation cell growth development. Consistent roles resistance multiple stresses, show wide...
Abstract YUCCA (YUC) proteins constitute a family of flavin monooxygenases (FMOs), with an important role in auxin (IAA) biosynthesis. Here we report that Arabidopsis plants overexpressing YUC6 display enhanced IAA-related phenotypes and exhibit improved drought stress tolerance, low rate water loss controlled ROS accumulation under oxidative stresses. Co-overexpression IAA-conjugating enzyme reduces IAA levels but tolerance is unaffected, indicating the stress-related phenotype not based on...
In plants, seasonal inputs such as photoperiod and temperature modulate the plant's internal genetic program to regulate timing of developmental transition from vegetative reproductive growth. This regulation floral involves chromatin remodeling, including covalent modification histones. Here, we report that HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE 15 (HOS15), a WD40 repeat protein, associates with histone deacetylase complex repress transcription GIGANTEA (GI)-mediated photoperiodic...
Critical to the maintenance of circadian rhythmicity is cyclic expression at least some components central oscillator. High-amplitude cycling mRNA and protein abundance, phosphorylation nuclear/cytoplasmic shuttling have all been implicated in period. Here we use a newly characterized Arabidopsis suspension cell culture establish that rhythmic changes levels clock-associated F-box protein, ZTL, are posttranscriptionally controlled through different phase-specific degradation rates. This...
In Arabidopsis thaliana, CONSTANS (CO) plays an essential role in the regulation of photoperiodic flowering under long-day conditions. CO protein is stable only afternoon long days, when it induces expression FLOWERING LOCUS T (FT), which promotes flowering. The blue-light photoreceptor FLAVIN-BINDING, KELCH REPEAT, F-BOX1 (FKF1) interacts with and stabilizes by unknown mechanism. Here, we provide genetic biochemical evidence that FKF1 inhibits CONSTITUTIVE PHOTOMORPHOGENIC1 (COP1)-dependent...
Drought is one of the most critical environmental stresses limiting plant growth and crop productivity. The synthesis signaling abscisic acid (ABA), a key phytohormone in drought stress response, under photoperiodic control. GIGANTEA (GI), regulator photoperiod-dependent flowering circadian rhythm, also involved pathways for various abiotic stresses. In this study, we isolated ENHANCED EM LEVEL (EEL)/basic Leu zipper 12, transcription factor ABA signal responses, as GI interactor Arabidopsis...
Abstract Humic acid (HA) is composed of a complex supramolecular association and produced by humification organic matters in soil environments. HA not only improves fertility, but also stimulates plant growth. Although numerous bioactivities have been reported, the molecular evidences yet elucidated. Here, we performed transcriptomic analysis to identify HA-prompted mechanisms Arabidopsis. Gene ontology enrichment revealed that up-regulates diverse genes involved response stress, especially...