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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Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress

Biology, Journal Year: 2025, Volume and Issue: 14(1), P. 94 - 94

Published: Jan. 18, 2025

Drought stress constitutes a major challenge to wheat production. Melatonin plays vital role in plants’ resistance drought stress. Nevertheless, the influence of melatonin seed coating on ability remains unclear. Hence, this study, (Yunmai 112) was chosen as experimental material. The research results indicated that 100 µM exogenous treatment enhanced germination rate seeds by 11% compared CK group. (100 or 200 µM) significantly inhibited accumulation ROS seedlings under conditions and facilitated growth seedlings. Then, elevated activity antioxidant enzymes (CAT, Cu/Zn-SOD, POD, T-GSH) strengthened In contrast control, raised contents soluble protein chlorophyll Further studies demonstrated promoted increase thousand-grain weight yield Taking together, is an effective approach for enhancing

Language: Английский

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Melatonin modulates autophagy, mitochondria and antioxidant in the liver and brain of Perccottus glenni during recovery from freezing

Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, Journal Year: 2025, Volume and Issue: 303, P. 111824 - 111824

Published: Feb. 12, 2025

Language: Английский

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The teamwork of melatonin, ethylene and H2S in abiotic stress adaptation in plants

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109889 - 109889

Published: April 1, 2025

Language: Английский

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