Redox regulation of plant stress and development

Plant Cell & Environment, Год журнала: 2024, Номер 47(8), С. 2713 - 2715

Опубликована: Май 2, 2024

Язык: Английский

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OsWNK9 mitigates salt stress by promoting root growth and stomatal closure in rice

Physiologia Plantarum, Год журнала: 2025, Номер 177(1)

Опубликована: Янв. 1, 2025

Abstract Salinity stress severely affects rice growth and reduces its productivity. With No Lysine Kinases (WNKs) are serine/threonine kinases emerging as potential candidate genes due to their involvement in various abiotic tolerance responses. However, studies providing mechanistic insights into the roles of WNKs plants remain scarce. In present study, OsWNK9‐ overexpressing lines showed strong salinity stress. Overexpression OsWNK9 also triggered accumulation abscisic acid (ABA) restored indole‐3‐acetic (IAA) concentrations roots, triggering stomatal closure shoots maintaining cell expansion root epidermal cells when challenged with salt treatment. The overexpression increased activity antioxidant enzymes, which further mitigated ROS‐mediated cellular damage under We identified that interacts Receptor for Activated Kinase C1A (RACK1A), ABA‐8′‐hydroxylase, (Vacuolar Type ATPase) V‐Type ATPase. Taken together, our findings suggest expression is warranted exerts effects by interacting downstream targets ABA IAA, thereby regulating seed germination, activity, improved growth, ionic homeostasis, all contribute significantly higher yield produced per plant long term

Язык: Английский

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Do guard cells have single or multiple defense mechanisms in response to flg22?

Physiologia Plantarum, Год журнала: 2025, Номер 177(3)

Опубликована: Май 1, 2025

Abstract Bacterial flagellin (flg22) induces rapid and permanent stomatal closure. However, its local systemic as well tissue‐ cell‐specific effects are less understood. Our results show that flg22 induced closure in intact tomato plants, which was regulated by reactive oxygen‐ nitrogen species, also affected the photosynthetic activity of guard cells but not mesophyll cells. Interestingly, extensive expression Ethylene response factor 1 observed after exposure to flg22, whereas relative transcript levels Defensin increased only six hours, especially leaves. Following ethylene emission already one jasmonic acid leaves hours treatment. Using immunohistochemical methods, significant defensin accumulation found epidermis stomata flg22‐treated above them. Immunogold labelling revealed defensins cell wall parenchyma Furthermore, single qRT‐PCR confirmed able synthesise defensins. It can be concluded involved first line plant defense regulating pore size, defend themselves producing accumulating antimicrobial where phytopathogens penetrate.

Язык: Английский

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Mechanistic insights into the quality maintenance of postharvest Cili induced by stress from exogenous H2O2 through ‘Physio-Omic-CompBio’ tripartite correlation

Postharvest Biology and Technology, Год журнала: 2025, Номер 228, С. 113631 - 113631

Опубликована: Май 16, 2025

Язык: Английский

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8-oxoguanine DNA glycosylase-1 may serve as biomarker of mechanical asphyxia

Forensic Science International, Год журнала: 2024, Номер 361, С. 112071 - 112071

Опубликована: Май 30, 2024

Язык: Английский

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Identification of osmotic stress resistance mediated by MdKAI2 in apple

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Дек. 5, 2024

KAR (Karrikin), a novel plant growth regulator, can be recognized specifically by plants and activate resistance responses. MdKAI2 is the natural receptor of KARs in apple. Here, we report identification osmotic stress

Язык: Английский

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