Dynamic physiology and transcriptomics revealed the alleviation effect of melatonin on Reaumuria trigyna under continuous alkaline salt stress

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 21, 2025

Introduction Reaumuria trigyna , a pivotal salt-tolerant plant species in Central Asian salt desert ecosystems, has garnered significant attention due to its resilience under harsh environmental conditions. This study investigates the response mechanisms of melatonin on dynamic physiology and transcriptomics critical ecosystems. Despite progress understanding tolerance, research positive effects particularly impact seed germination underlying physiological molecular mechanisms, remains limited. Methods In this study, we evaluated responses continuous alkaline stress examined effect germination. Results Our results demonstrate that at concentrations 300μmol/L significantly enhances growth promotes accumulation osmotic regulators. Notably, treatment increased rate by 35.48% compared group, which exhibited 52.15% lower than untreated control. The key mechanism identified involves melatonin’s ability increase antioxidant enzyme activity, reduce reactive oxygen hydrogen peroxide levels, alter gene expression patterns. Discussion Transcriptomic analysis revealed changes expression, photosynthetic signal transduction, phytohormone signaling, MAPK peroxisome pathway, are crucial for plant’s stress. findings provide new insights into how affects growth, germination, These address gap current scientific knowledge offer valuable theoretical support practical guidance cultivating salt-resistant crops ecological restoration salt-affected environments.

Language: Английский

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Antifungal effect and control of Alternaria fruit rot in blueberry through ε-polylysine hydrochloride

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: 222, P. 109694 - 109694

Published: Feb. 23, 2025

Language: Английский

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Functional interaction of melatonin with gasotransmitters and ROS in plant adaptation to abiotic stresses

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Dec. 12, 2024

Melatonin is considered a multifunctional stress metabolite and novel plant hormone affecting seed germination, root architecture, circadian rhythms, leaf senescence, fruit ripening. functions related to adaptation stimuli of various natures are especially important. One the key components melatonin’s stress-protective action its ability neutralise reactive oxygen species (ROS) nitrogen directly. However, many effects involvement in signalling network cells influence on expression large number genes important for adverse factors. Insights into functional relationships melatonin with gasotransmitters (GT) – gaseous molecules performing still emerging. This review has analysed summarised experimental data that testify participation main GTs nitric oxide, hydrogen sulfide, carbon monoxide implementation protective effect when plants exposed abiotic nature. In addition, modulation by one most ROS post-translational modifications proteins synthesis under conditions specific physiological exogenous have been reviewed. Finally, prospects GTs’ practical application achieve synergistic considered.

Language: Английский

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Enhancing tomato plant resistance to pathogens: the role of melatonin in boosting innate immunity and antioxidant defences

Plant Growth Regulation, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 24, 2024

Language: Английский

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