Under waterlogging stress, the TgRAV1–TgWRKY74 regulatory module in Torreya grandis modulates expression of the ethylene biosynthesis gene TgACS13 through multiple mechanisms to control ethylene accu....

Abstract. Response to reduced ambient oxygen is a key component of plant adaptation in natural and farmed environments and is regulated by oxygen dependent

Hydrogen sulfide (H₂S) is a gaseous molecule historically regarded as toxic. Nevertheless, increasing evidence has brought to light important physiological roles in both animals and plants. In plants,...

Reconsider the potential suspension of Plant Biology Courses at UoN

Flooding and oxygen deprivation severely impair mitochondrial energy metabolism in rice, reducing growth and survival under waterlogged conditions. To…

Claimants seek compensation from RWE and Heidelberg Materials after extreme flooding destroyed harvests

Two homologous transcriptional co-repressors synergistically govern distinct and shared transcriptomic changes in seed compartments to facilitate seed germ

Competition between phosphorylation and ubiquitination of the transcription factor STOP1 controls its accumulation in the nucleus, thus modulating hypoxia

While the molecular mechanisms mediating submergence tolerance have been extensively studied, those underpinning age-dependent resilience remain poorly characterized. In Arabidopsis thaliana, submerge...

Welcome to the lab website of Professor Daniel Gibbs @ University of Birmingham

This review synthesises current knowledge of how hormonal crosstalk drives lateral organs growth in different fruit crops under hypoxia and reoxygenation, revealing mechanisms that sustain oxygen upt...

This review synthesises current knowledge of how hormonal crosstalk drives lateral organs growth in different fruit crops under hypoxia and reoxygenation, revealing mechanisms that sustain oxygen upt...

Rising sea levels and intensifying storms increase flooding pressure on coastal forests, triggering tree mortality, ecosystem transitions, and chan...

Low oxygen stress (hypoxia) induced by submergence significantly impairs respiration in fruit trees, leading to reduced yield and, in extreme cases, tree mortality. While extensive research has focused on the root responses of peach trees to waterlogging, the mechanisms underlying leaf responses to complete submergence remain poorly understood. In this study, both transcriptomic and metabolic approaches were employed to explore the differential submergence tolerance between two peach cultivars: 'Dongxi Xiaoxian' (DX), which exhibits tolerance, and 'Hujing Milu' (HM), which is sensitive. Compared to HM, DX leaves experienced less decline in leaf verdancy, chlorophyll, and carotenoid content under submergence. DX leaves also showed enhanced antioxidant activities of ROS scavengers and reduced levels of H2O2 and MDA, correlating with improved tolerance. Transcriptomic analysis revealed significant alterations in the expression of genes involved in photosynthesis, glycan biosynthesis, and α-linolenic acid metabolism between the two cultivars. Key metabolites, including sugars (sorbitol and sucrose), amino acids (phenylalanine and L-norvaline), cell wall polysaccharides (lignin and pectin), and plant hormones (jasmonic acid and salicylic acid), were identified as critical for DX's superior submergence tolerance. These findings elucidate the mechanisms of peach leaf tolerance to submergence, providing insights into potential strategies for genetic improvement aimed at enhancing hypoxia resistance in fruit trees.