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

Melatonin in redox network and hormonal balance in mungbean seedlings due to fungicide-induced seed stress

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

Published: Dec. 14, 2024

Language: Английский