A5084739254- Plant responses to water stress
- Plant Stress Responses and Tolerance
- Plant Molecular Biology Research
- Plant nutrient uptake and metabolism
- Coastal wetland ecosystem dynamics
- Photosynthetic Processes and Mechanisms
- Lipid metabolism and biosynthesis
- Plant Pathogens and Resistance
- Signaling Pathways in Disease
- Ubiquitin and proteasome pathways
- Peptidase Inhibition and Analysis
- Adipose Tissue and Metabolism
- Light effects on plants
- Soybean genetics and cultivation
- Postharvest Quality and Shelf Life Management
- Plant Physiology and Cultivation Studies
- Potato Plant Research
- Flood Risk Assessment and Management
University of Birmingham
2020-2025
University of Freiburg
2021-2024
Utrecht University
2016-2022
Timely perception of adverse environmental changes is critical for survival. Dynamic in gases are important cues plants to sense perturbations, such as submergence. In Arabidopsis thaliana, oxygen and nitric oxide (NO) control the stability ERFVII transcription factors. proteolysis regulated by N-degron pathway mediates adaptation flooding-induced hypoxia. However, how detect transduce early submergence signals remains elusive. Here we show that can rapidly through passive ethylene...
Soil compaction represents a major challenge for modern agriculture. Compaction is intuitively thought to reduce root growth by limiting the ability of roots penetrate harder soils. We report that in compacted soil instead actively suppressed volatile hormone ethylene. found mutant Arabidopsis and rice were insensitive ethylene penetrated more effectively than did wild-type roots. Our results indicate lowers gas diffusion through reduction air-filled pores, thereby causing accumulate tissues...
Climate change has increased the frequency and severity of flooding events, with significant negative impact on agricultural productivity. These events often submerge plant aerial organs roots, limiting growth survival due to a severe reduction in light reactions gas exchange necessary for photosynthesis respiration, respectively. To distinguish molecular responses compound stress imposed by submergence, we investigated transcriptomic adjustments darkness air under submerged conditions using...
The polycomb repressive complex 2 (PRC2) regulates epigenetic gene repression in eukaryotes. Mechanisms controlling its developmental specificity and signal-responsiveness are poorly understood. Here, we identify an oxygen-sensitive N-terminal (N-) degron the plant PRC2 subunit VERNALIZATION(VRN) 2, a homolog of animal Su(z)12, that promotes degradation via N-end rule pathway. We provide evidence this N-degron arose early during angiosperm evolution duplication truncation, facilitating...
Soil compaction represents a major agronomic challenge, inhibiting root elongation and impacting crop yields. Roots use ethylene to sense soil as the restricted air space causes this gaseous signal accumulate around tips. Ethylene inhibits promotes radial expansion in compacted soil, but its mechanistic basis remains unclear. Here, we report that abscisic acid (ABA) biosynthesis cortical cell expansion. Rice mutants of ABA biosynthetic genes had attenuated leading better penetration....
Abstract Flooded plants experience impaired gas diffusion underwater, leading to oxygen deprivation (hypoxia). The volatile plant hormone ethylene is rapidly trapped in submerged cells and instrumental for enhanced hypoxia acclimation. However, the precise mechanisms underpinning ethylene-enhanced survival remain unclear. We studied effect of pretreatment on Arabidopsis (Arabidopsis thaliana) primary root tips. Both itself re-oxygenation following are highly damaging tip cells, pretreatments...
Plant submergence is a major abiotic stress that impairs plant performance. Under water, reduced gas diffusion exposes submerged cells to an environment enriched in gaseous ethylene and limited oxygen (O2) availability (hypoxia). The capacity for roots avoid and/or sustain critical hypoxia damage essential plants survive waterlogging. Plants use spatiotemporal O2 dynamics as instrumental flooding signals modulate potential adaptive root growth acclimation responses. However, how non-adapted...
SUMMARY Flooding impairs plant growth through oxygen deprivation, which activates survival and acclimation responses. Transcriptional responses to low are generally associated with the activation of group VII ETHYLENE‐RESPONSE FACTOR (ERFVII) transcription factors. However, exact mechanisms molecular components by ERFVII factors initiate gene expression not fully elucidated. Here, we show that RELATED TO APETALA 2.2 (RAP2.2) RAP2.12 cooperate Mediator complex subunit At MED25 coordinate...
The increasing occurrence of floods hinders agricultural crop production and threatens global food security. majority vegetable crops are highly sensitive to flooding it is unclear how these plants use signals acclimate impending oxygen deprivation (hypoxia). Previous research has shown that the early signal ethylene augments hypoxia responses improves survival in Arabidopsis. To unravel cultivated wild Solanum species integrate signaling control subsequent acclimation, we studied transcript...
Abstract Flooding impairs plant growth through oxygen deprivation, which activates survival and acclimation responses. Low-oxygen responses are generally associated with activation of group VII ETHYLENE-RESPONSE FACTOR (ERFVII) transcription factors. However, mechanism molecular components by ERFVII factors initiate gene expression not fully elucidated. Here, we show that the Mediator complex subunit At MED25 is recruited RELATED TO APETALA 2.2 (RAP2.2) RAP2.12 to coordinate during hypoxia...
Abstract The polycomb protein VERNALIZATION2 (VRN2) is a plant-specific subunit of the repressive complex 2 (PRC2), conserved eukaryotic holoenzyme that represses gene expression by depositing histone H3K27me3 mark in chromatin. Previous work established VRN2 as an oxygen-regulated target N-degron pathway may function sensor connecting PRC2 activity to perception positional and environmental cues. Here we show enriched hypoxic meristematic regions emerging leaves Arabidopsis under...
Soil flooding creates low-oxygen environments in root zones and thus severely affects plant growth productivity. Plants adapt to by a suite of orchestrated metabolic anatomical alterations. Of these, formation aerenchyma development adventitious roots are considered very critical enable performance waterlogged soils. Both traits have been firmly associated with stress-induced increases ethylene levels tissues that operate upstream signalling pathways. Recently, we used bioinformatic approach...
Abstract Flooded plants experience impaired gas diffusion underwater, leading to oxygen deprivation (hypoxia). The volatile plant hormone ethylene is rapidly trapped in submerged cells and instrumental for enhanced hypoxia acclimation. However, the precise mechanisms underpinning ethylene-enhanced survival remain unclear. We studied effect of pre-treatment on primary Arabidopsis thaliana root tips. Both itself re-oxygenation following are highly damaging tip pre-treatments reduced this...