Acidic Stress Induces Cytosolic Free Calcium Oscillation, and an Appropriate Low pH Helps Maintain the Circadian Clock in Arabidopsis DOI Creative Commons
Wei Chen, Jing Xu, Jia Chen

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(21), P. 3107 - 3107

Published: Nov. 4, 2024

Acidic stress is a formidable environmental factor that exerts adverse effects on plant growth and development, ultimately leading to potential reduction in agricultural productivity. A low pH triggers Ca2+ influx across the plasma membrane (PM), eliciting distinct responses under various acidic levels. However, underlying mechanisms by which Arabidopsis cells generate stimulus-specific signals response remain largely unexplored. The experimentally induced stimulus may elicit spikes cytosolic free concentration ([Ca2+]i) or complex [Ca2+]i oscillations persist for 20 min over long-term of 24 h even several days within cytosol chloroplast. This study investigated increase gradient ranging from 3.0 6.0. Notably, peak elevation was lower at 4.0 than during initial 8 h, while other levels did not significantly compared conditions. Lanthanum chloride (LaCl3) can effectively suppress apoplastic cytoplasm plants acid stress, with no discernible difference intracellular calcium observed Arabidopsis. Following treatment darkness, baseline were elevated when exposed stress. moderately pH, specifically 4.0, function as spatial-temporal input into circadian clock system. These findings suggest stimulation exert continuous influence levels, well development.

Language: Английский

Molecular and Physiological Responses of Plants that Enhance Cold Tolerance DOI Open Access
Lixia Zhou, Fazal Ullah,

Jixin Zou

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(3), P. 1157 - 1157

Published: Jan. 29, 2025

Low-temperature stress, including chilling and freezing injuries, significantly impacts plant growth in tropical temperate regions. Plants respond to cold stress by activating mechanisms that enhance tolerance, such as regulating photosynthesis, metabolism, protein pathways producing osmotic regulators antioxidants. Membrane stability is crucial, with cold-resistant plants exhibiting higher lipid unsaturation maintain fluidity normal metabolism. Low temperatures disrupt reactive oxygen species (ROS) leading oxidative damage, which mitigated antioxidant defenses. Hormonal regulation, involving ABA, auxin, gibberellins, others, further supports adaptation. also manage balance accumulating like proline sugars. Through complex regulatory pathways, the ICE1-CBF-COR cascade, optimize gene expression survive ensuring adaptability conditions. This study reviews recent advancements genetic engineering technologies aimed at enhancing resistance of agricultural crops. The goal provide insights for improving tolerance developing new cold-tolerant varieties.

Language: Английский

Citations

1
Salinity survival: molecular mechanisms and adaptive strategies in plants DOI Creative Commons
Huankai Zhang,

Caiyu Yu,

Qian Zhang

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 28, 2025

Soil salinity is a significant environmental challenge that threatens plant growth and development, adversely affecting global food crop production. This underscores the critical need to elucidate molecular mechanisms underlying salt tolerance, which has profound implications for agricultural advancement. Recent progress in tolerance greatly improved our understanding of responses stress precision design breeding as an effective strategy developing new salt-tolerant varieties. review focuses on model species Arabidopsis thaliana important crops, namely, wheat ( Triticum aestivum ), maize Zea mays rice Oryza sativa ). It summarizes current knowledge emphasizing key aspects such perception response stress, Na + transport, compartmentalization clearance, changes reactive oxygen induced by regulation stem cell development under conditions. The might provide valuable information adaptation stress.

Language: Английский

Citations

0
Functional Characterization of MaSPL8 Reveals Its Different Roles in Biotic and Abiotic Stress Responses in Mulberry DOI Creative Commons

Longyan Zheng,

Wenhao Zhang, Liuqing Wei

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(6), P. 950 - 950

Published: March 18, 2025

The Squamosa promoter-binding protein-like (SPL) family proteins plays pivotal roles in plant development and stress adaptation. In this study, we functionally characterized MaSPL8 mulberry (Morus alba) investigated its regulatory biotic abiotic responses. encodes a 364-amino acid protein with conserved SBP domain lacks miR156/157 binding sites. Phylogenetic analysis confirmed orthology to Arabidopsis AtSPL8, albeit functional divergence. Downregulation of via virus-induced gene silencing (VIGS) resulted more susceptibility Ciboria shiraiana infection, but significantly enhanced resistance drought salt stress, as evidenced by reduced oxidative damage, elevated proline accumulation, increased antioxidant enzyme activities. Transcriptomic profiling MaSPL8-silenced plants revealed enrichment differentially expressed genes (DEGs) brassinosteroid biosynthesis, jasmonic metabolism, responses, suggesting hormone signaling interplay. Furthermore, bioinformatic predictions identified miR5658 miR4221 potential post-transcriptional regulators MaSPL8. This study highlights negative regulator tolerance positive (C. shiraiana) provides insights into integration phytohormone pathways. Our findings underscore the evolutionary plasticity SPL8 propose target for enhancing mulberry’s resilience challenging environments.

Language: Английский

Citations

0
Ecofriendly Biosynthesis of Zinc Oxide Nanoparticles (ZnO NPs) from Arthrospira platensis and Their Assessment for Antimicrobial, Antibiofilm, Anticancer Potency and Alleviation of Copper Stress in Vicia faba (L.) Plant DOI Creative Commons
Walaa A. Abo-Shanab, Sobhy E. Elsilk,

Salsabil S. Afifi

et al.

Journal of soil science and plant nutrition, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Language: Английский

Citations

0
Acidic Stress Induces Cytosolic Free Calcium Oscillation, and an Appropriate Low pH Helps Maintain the Circadian Clock in Arabidopsis DOI Creative Commons
Wei Chen, Jing Xu, Jia Chen

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(21), P. 3107 - 3107

Published: Nov. 4, 2024

Acidic stress is a formidable environmental factor that exerts adverse effects on plant growth and development, ultimately leading to potential reduction in agricultural productivity. A low pH triggers Ca2+ influx across the plasma membrane (PM), eliciting distinct responses under various acidic levels. However, underlying mechanisms by which Arabidopsis cells generate stimulus-specific signals response remain largely unexplored. The experimentally induced stimulus may elicit spikes cytosolic free concentration ([Ca2+]i) or complex [Ca2+]i oscillations persist for 20 min over long-term of 24 h even several days within cytosol chloroplast. This study investigated increase gradient ranging from 3.0 6.0. Notably, peak elevation was lower at 4.0 than during initial 8 h, while other levels did not significantly compared conditions. Lanthanum chloride (LaCl3) can effectively suppress apoplastic cytoplasm plants acid stress, with no discernible difference intracellular calcium observed Arabidopsis. Following treatment darkness, baseline were elevated when exposed stress. moderately pH, specifically 4.0, function as spatial-temporal input into circadian clock system. These findings suggest stimulation exert continuous influence levels, well development.

Language: Английский

Citations

1