Melatonin‐Mediated Vacuolar Compartmentalization in Solanum nigrum L. Under Cadmium Stress DOI

Yan Yang,

Wenjie Guan,

Zhishuai Li

et al.

Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

ABSTRACT Melatonin has been identified as a potential mitigator of cadmium (Cd) stress in plants, though its precise cellular mechanisms remain poorly understood, particularly regarding role detoxification processes within the protoplast and vacuole. This study examines effects exogenous melatonin on Cd concentration vacuolar compartmentalization leaf cells Solanum nigrum L., recognized hyperaccumulator plant. Employing subcellular separation techniques, we quantified levels total Cd, 2+ , ascorbic acid–glutathione (AsA‐GSH), reactive oxygen species (ROS) protoplasts vacuoles cells. Results reveal that serves dynamic mechanism, balancing strategic sequestration continuous metabolic activity cytoplasm, with 72.19%–79.89% retained enhanced effective allocation these resources, contributing to preservation homeostasis. In particular, outside vacuole, treatment maintained relatively higher glutathione/oxidized glutathione (GSH/GSSG) acid/dehydroascorbate (AsA/DHA) under 50 μM stress. At this concentration, AsA/DHA ratio increased from 0.71 2.20, GSH/GSSG 2.20 4.28 comparison alone. These findings enhance our understanding melatonin‐mediated tolerance mechanisms, offer insights for improving plant tolerance, could inform genetic strategies developing more efficient plants.

Language: Английский

Exogenous melatonin and grafting improved the growth and physiological characteristics of Citrullus lanatus seedlings under cadmium stress DOI

Hanyang Zhang,

Li Ai

Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

Language: Английский

Citations

0
Physiological Adaptations of Vigna radiata to Heavy Metal Stress: Soluble Sugar Accumulation and Biomass Enhancement DOI Creative Commons
Weiliang Qi,

Jinping Bai,

Yu Han

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(8), P. 1191 - 1191

Published: April 11, 2025

Background: Heavy metal contamination significantly threatens crop growth and global food security. Understanding plant responses to such stress is crucial developing stress-tolerant crops. This study explores the physiological biochemical of Vigna radiata (L.) R. Wilczek mercury, lead, copper stress, focusing on role soluble sugar accumulation biomass enhancement in conferring heavy tolerance. Methods: Commercially available V. seeds were exposed varying concentrations (50, 150, 300 mg/L) mercurous nitrate, lead chloride under controlled conditions. The germination rates, seedling growth, parameters as protein content analyzed using spectrophotometry statistical methods, including ANOVA. Results: results demonstrated that ion increased dry weight, while all tested metals promoted accumulation. Although inhibited at higher concentrations, exhibited strong tolerance moderate levels. Conclusion: highlights adaptive strategies radiata, soluble-sugar-mediated osmotic adjustment enhanced allocation, which contribute its resilience stress. These findings provide insights for breeding stress-resistant crops managing heavy-metal-contaminated environments.

Language: Английский

Citations

0
A meta-analysis on plant growth and heavy metals uptake with the application of 2,4-epibrassinolide in contaminated soils DOI Creative Commons
Kuiju Niu, Hong Xiao, Yong Wang

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 289, P. 117439 - 117439

Published: Nov. 30, 2024

Language: Английский

Citations

0
Melatonin‐Mediated Vacuolar Compartmentalization in Solanum nigrum L. Under Cadmium Stress DOI

Yan Yang,

Wenjie Guan,

Zhishuai Li

et al.

Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

ABSTRACT Melatonin has been identified as a potential mitigator of cadmium (Cd) stress in plants, though its precise cellular mechanisms remain poorly understood, particularly regarding role detoxification processes within the protoplast and vacuole. This study examines effects exogenous melatonin on Cd concentration vacuolar compartmentalization leaf cells Solanum nigrum L., recognized hyperaccumulator plant. Employing subcellular separation techniques, we quantified levels total Cd, 2+ , ascorbic acid–glutathione (AsA‐GSH), reactive oxygen species (ROS) protoplasts vacuoles cells. Results reveal that serves dynamic mechanism, balancing strategic sequestration continuous metabolic activity cytoplasm, with 72.19%–79.89% retained enhanced effective allocation these resources, contributing to preservation homeostasis. In particular, outside vacuole, treatment maintained relatively higher glutathione/oxidized glutathione (GSH/GSSG) acid/dehydroascorbate (AsA/DHA) under 50 μM stress. At this concentration, AsA/DHA ratio increased from 0.71 2.20, GSH/GSSG 2.20 4.28 comparison alone. These findings enhance our understanding melatonin‐mediated tolerance mechanisms, offer insights for improving plant tolerance, could inform genetic strategies developing more efficient plants.

Language: Английский

Citations

0