Hydrogen peroxide mediates melatonin-induced chilling tolerance in cucumber seedlings DOI
Linghao Meng, Yiqing Feng, Meng Zhao

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Сен. 4, 2024

Abstract Melatonin (MT) and hydrogen peroxide (H2O2) are important endogenous signaling molecules that play multifaceted roles in plant responses to abiotic stress. However, the interactive mechanism by which MT H2O2 regulate chilling tolerance remains unclear. Here we found exhibited a positive regulatory effect on of cucumbers, with an optimum concentration 100 µM. markedly enhanced RBOH1 mRNA expression, activity accumulation cucumber seedlings. 1.0 mM had no significant levels TDC ASMT, key genes for synthesis, content. Both significantly decreased malondialdehyde (MDA), electrolyte leakage (EL) injury index (CI) activating antioxidant system, thereby alleviating damage improved photosynthetic carbon assimilation, was primarily attributed increase activity, protein RuBPCase RCA. Meanwhile, induced photoprotection both PSII PSI enhancing QA’s electron transport capacity elevating photosystems. Moreover, upregulated expression cold response genes. MT-induced attenuated by N’, N’-dimethylthiourea (DMTU), H2O2 specific scavenger. Whereas, synthesis inhibitor (p-chlorophenylalanine, p-CPA) did not influence H2O2-induced tolerance. The regulation photosynthesis gene were RBOH1-RNAi plants compared WT plants. These findings suggest may functions as downstream molecule

Язык: Английский

Unveiling exogenous potential of phytohormones as sustainable arsenals against plant pathogens: molecular signaling and crosstalk insights DOI Creative Commons
Lucky Duhan, Ritu Pasrija

Molecular Biology Reports, Год журнала: 2025, Номер 52(1)

Опубликована: Янв. 2, 2025

Язык: Английский

Процитировано

2
Residual effects of biochar and nano-modified biochar on growth and physiology under saline environment in two different genotype of Oryza sativa L. DOI

Haider Sultan,

Hafiz Muhammad Mazhar Abbas,

Mohammad Faizan

и другие.

Journal of Environmental Management, Год журнала: 2025, Номер 373, С. 123847 - 123847

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

1
Melatonin biosynthesis, signaling regulation, crosstalk with phytohormones and its role in defence mechanism and ROS scavenging DOI

Rizwana Kouser,

Sameen Zaidi,

Yamshi Arif

и другие.

Revista Brasileira de Botânica, Год журнала: 2025, Номер 48(1)

Опубликована: Янв. 30, 2025

Язык: Английский

Процитировано

1
The CGA1-SNAT regulatory module potentially contributes to cytokinin-mediated melatonin biosynthesis and drought tolerance in wheat DOI Creative Commons
Roohollah Shamloo‐Dashtpagerdi, Angelica Lindlöf,

Massume Aliakbari

и другие.

BMC Plant Biology, Год журнала: 2025, Номер 25(1)

Опубликована: Март 7, 2025

Melatonin plays a pivotal role in alleviating abiotic stresses, yet its biosynthesis regulation crops, particularly wheat, remains unclear. This study explores regulatory components of melatonin under drought stress using bioinformatic, physiochemical, and molecular approaches contrasting wheat genotypes. Bioinformatic analysis identified SNAT, key gene, 88 transcription factors (TFs) from 26 families as potential regulators. The network for SNAT highlighted CYTOKININ-RESPONSIVE GATA FACTOR 1 (CGA1) significant TF. Under stress, genotypes exhibited distinct CGA1-SNAT module expression, cytokinin levels, photosynthetic activity, oxidative damage. Cytokinin treatments regulated the module, altering content, SPAD values, chloroplast numbers, drought-susceptible uncovers interaction with pathway regulating during stress. These findings enhance our understanding mechanisms underpinning tolerance offer promising targets genetic biochemical interventions to improve crop resilience.

Язык: Английский

Процитировано

0
Synergistic application of melatonin and silicon oxide nanoparticles modulates reactive oxygen species generation and the antioxidant defense system: a strategy for cadmium tolerance in rice DOI Creative Commons
Mohammad Faisal, Mohammad Faizan, Sipan Soysal

и другие.

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Окт. 15, 2024

Unfavorable environmental conditions pose a major barrier to sustainable agriculture. Among the various innovative strategies developed protect plants from abiotic stress, use of phytohormones and nanoparticles as “stress mitigators” has emerged one most important promising approaches. The objective this study was observe protective role melatonin (Mel) silicon oxide (SiO-NPs) in rice ( Oryza sativa L.) seedlings under cadmium (Cd) stress. Rice have reduced growth phytochemical attributes when grown Cd-contaminated (0.8 mM) pots. Seedlings Cd stress had 38% less shoot length (SL), 53% total soluble sugar (TSS) 57% protein content. However, superoxide dismutase (SOD), hydrogen peroxide (H 2 O ) malondialdehyde (MDA) increased by 51%, 37% 34%, respectively, Beside this, activities such peroxidase (POX) also elevated subjected with Cd-stress. In contrast, Mel (100 µm) foliar spray SiO-NPs mg/L) root dipping oxidative reducing reactive oxygen species (ROS) generation. Furthermore, application and/or significantly activity antioxidative enzymes that scavenge ROS. combined growth, gas exchange photosynthetic attributes, chlorophyll value, It causes alleviation SOD, CAT POX 73%, 62% 65%, respectively. Overall, findings show can potentially crop against damage

Язык: Английский

Процитировано

3
Annexins: A family of calcium binding proteins with variety of roles in plant development and abiotic stress tolerance DOI Creative Commons
Mohammad Faizan,

Hadagali Ashoka,

Fadime Karabulut

и другие.

Plant Stress, Год журнала: 2024, Номер 14, С. 100573 - 100573

Опубликована: Авг. 31, 2024

Язык: Английский

Процитировано

1
Exogenous melatonin enhances salt tolerance by regulating the phenylpropanoid biosynthesis pathway in common bean at sprout stage DOI Creative Commons
Qi Zhang,

Anjian Li,

Bo Xu

и другие.

Plant Stress, Год журнала: 2024, Номер 14, С. 100589 - 100589

Опубликована: Сен. 6, 2024

Язык: Английский

Процитировано

1
Hydrogen peroxide mediates melatonin-induced chilling tolerance in cucumber seedlings DOI
Linghao Meng, Yiqing Feng, Meng Zhao

и другие.

Plant Cell Reports, Год журнала: 2024, Номер 43(12)

Опубликована: Ноя. 13, 2024

Язык: Английский

Процитировано

1
Interplay of Melatonin and Jasmonic Acid in Modulating Wheat (Triticum aestivum L.) Physiology and Molecular Pathways Under Salt Stress DOI
Mehmet Aybeke

Journal of Plant Growth Regulation, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 22, 2024

Язык: Английский

Процитировано

1
Hydrogen peroxide mediates melatonin-induced chilling tolerance in cucumber seedlings DOI
Linghao Meng, Yiqing Feng, Meng Zhao

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Сен. 4, 2024

Abstract Melatonin (MT) and hydrogen peroxide (H2O2) are important endogenous signaling molecules that play multifaceted roles in plant responses to abiotic stress. However, the interactive mechanism by which MT H2O2 regulate chilling tolerance remains unclear. Here we found exhibited a positive regulatory effect on of cucumbers, with an optimum concentration 100 µM. markedly enhanced RBOH1 mRNA expression, activity accumulation cucumber seedlings. 1.0 mM had no significant levels TDC ASMT, key genes for synthesis, content. Both significantly decreased malondialdehyde (MDA), electrolyte leakage (EL) injury index (CI) activating antioxidant system, thereby alleviating damage improved photosynthetic carbon assimilation, was primarily attributed increase activity, protein RuBPCase RCA. Meanwhile, induced photoprotection both PSII PSI enhancing QA’s electron transport capacity elevating photosystems. Moreover, upregulated expression cold response genes. MT-induced attenuated by N’, N’-dimethylthiourea (DMTU), H2O2 specific scavenger. Whereas, synthesis inhibitor (p-chlorophenylalanine, p-CPA) did not influence H2O2-induced tolerance. The regulation photosynthesis gene were RBOH1-RNAi plants compared WT plants. These findings suggest may functions as downstream molecule

Язык: Английский

Процитировано

0