Ethylene and Jasmonates Signaling Network Mediating Secondary Metabolites under Abiotic Stress

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(6), С. 5990 - 5990

Опубликована: Март 22, 2023

Plants are sessile organisms that face environmental threats throughout their life cycle, but increasing global warming poses an even more existential threat. Despite these unfavorable circumstances, plants try to adapt by developing a variety of strategies coordinated plant hormones, resulting in stress-specific phenotype. In this context, ethylene and jasmonates (JAs) present fascinating case synergism antagonism. Here, Ethylene Insensitive 3/Ethylene Insensitive-Like Protein1 (EIN3/EIL1) Jasmonate-Zim Domain (JAZs)-MYC2 the JAs signaling pathways, respectively, appear act as nodes connecting multiple networks regulate stress responses, including secondary metabolites. Secondary metabolites multifunctional organic compounds play crucial roles acclimation plants. exhibit high plasticity metabolism, which allows them generate near-infinite chemical diversity through structural modifications, likely have selective adaptive advantage, especially climate change challenges. contrast, domestication crop has resulted or loss phytochemicals, making significantly vulnerable stresses over time. For reason, there is need advance our understanding underlying mechanisms hormones respond abiotic stress. This knowledge may help improve adaptability resilience changing climatic conditions without compromising yield productivity. Our aim review was provide detailed overview responses mediated impact on

Язык: Английский

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Strigolactone: An Emerging Growth Regulator for Developing Resilience in Plants

Plants, Год журнала: 2022, Номер 11(19), С. 2604 - 2604

Опубликована: Окт. 3, 2022

Improving plant resilience to changing environmental conditions is the primary focus of today’s scientific research globally. It essential find various strategies for better survival plants with higher resistance potential climate change. Strigolactones (SLs) are multifunctional β-carotene derivative molecules that determine a range growth and development aspects, such as root architecture, shoot branching, chlorophyll synthesis, senescence. SLs facilitate strong defense responses against drought, salinity, heavy metal, nutrient starvation, heat stress. The trigger other hormonal-responsive pathways stressful environments. This review focuses on mechanisms regulated by interaction hormones regulate developmental processes SLs’ influence mitigation damage under abiotic stresses. A understanding signaling perception may lead path sustainability in scenario. be considered an opening door toward sustainable agriculture.

Язык: Английский

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Hydrogen Sulfide, Ethylene, and Nitric Oxide Regulate Redox Homeostasis and Protect Photosynthetic Metabolism under High Temperature Stress in Rice Plants

Antioxidants, Год журнала: 2022, Номер 11(8), С. 1478 - 1478

Опубликована: Июль 28, 2022

Rising temperatures worldwide due to global climate change are a major scientific issue at present. The present study reports the effects of gaseous signaling molecules, ethylene (200 µL L-1; 2-chloroethylphosphonic acid; ethephon, Eth), nitric oxide (NO; 100 µM sodium nitroprusside; SNP), and hydrogen sulfide (H2S; 200 hydrosulfide, NaHS) in high temperature stress (HS) tolerance, whether or not H2S contributes NO-induced thermo-tolerance photosynthetic protection rice (Oryza sativa L.) cultivars, i.e., Taipei-309, Rasi. Plants exposed an HS 40 °C for six h per day 15 days caused reduction biomass, associated with decreased photosynthesis leaf water status. High increased oxidative by increasing content peroxide (H2O2) thiobarbituric acid reactive substance (TBARS) leaves. These molecules status, osmolytes, antioxidants, plants under non-stress stress. However, effect was more conspicuous than NO H2S. application scavenger hypotaurine (HT) reversed on HS. This supports findings that ameliorating Eth SNP involved Thus, presence can enhance while also protecting plant photosynthesis.

Язык: Английский

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Phyto-microbiome to mitigate abiotic stress in crop plants

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Авг. 2, 2023

Plant-associated microbes include taxonomically diverse communities of bacteria, archaebacteria, fungi, and viruses, which establish integral ecological relationships with the host plant constitute phyto-microbiome. The phyto-microbiome not only contributes in normal growth development plants but also plays a vital role maintenance homeostasis during abiotic stress conditions. Owing to its immense metabolic potential, provides capability mitigate through various mechanisms like production antioxidants, hormones, bioactive compounds, detoxification harmful chemicals toxins, sequestration reactive oxygen species other free radicals. A deeper understanding structure functions complex mediated mitigation would enable utilization for alleviation crop stress-resistant crops. This review aims at exploring potential alleviate drought, heat, salinity heavy metal finding sustainable solutions enhance agricultural productivity. mechanistic insights into phytomicrobiome imparting tolerance have been summarized, that be helpful novel bioinoculants. high-throughput modern approaches involving candidate gene identification target modification such as genomics, metagenomics, transcriptomics, metabolomics, based genetic engineering discussed wake ever-increasing demand climate resilient plants.

Язык: Английский

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Hydrogen sulfide and ethylene regulate sulfur-mediated stomatal and photosynthetic responses and heat stress acclimation in rice

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 207, С. 108437 - 108437

Опубликована: Фев. 1, 2024

Язык: Английский

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Unraveling the potential of hydrogen sulfide as a signaling molecule for plant development and environmental stress responses: A state-of-the-art review

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 212, С. 108730 - 108730

Опубликована: Май 15, 2024

Язык: Английский

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Hydrogen sulfide mechanism of action in plants; from interaction with regulatory molecules to persulfidation of proteins

Nitric Oxide, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses

Cells, Год журнала: 2022, Номер 12(1), С. 31 - 31

Опубликована: Дек. 21, 2022

The plant phytohormone ethylene regulates numerous physiological processes and contributes to plant–microbe interactions. Plants induce production ward off pathogens after recognition of conserved microbe-associated molecular patterns (MAMPs). However, immune responses against are essentially not different from those triggered by neutral beneficial microbes. Recent studies indicate that is an important factor for plant–microbial association under abiotic stress such as salt heat stress. microbes with plants stresses modulates levels which control the expression ethylene-responsive genes (ERF), ERFs further regulate transcriptome, epi-transcriptome, Na+/K+ homeostasis antioxidant defense mechanisms reactive oxygen species (ROS). Understanding ethylene-dependent interactions crucial development new strategies aimed at enhancing tolerance harsh environmental conditions. In this review, we underline importance in interaction stresses.

Язык: Английский

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Nitric Oxide and Proline Modulate Redox Homeostasis and Photosynthetic Metabolism in Wheat Plants under High Temperature Stress Acclimation

Plants, Год журнала: 2023, Номер 12(6), С. 1256 - 1256

Опубликована: Март 10, 2023

The effects of exogenously-sourced NO (nitric oxide, as 100 µM SNP) and proline (50 mM) in the protection photosynthetic performance wheat (Triticum aestivum L.) plants against heat stress were investigated. study focused on mechanisms accumulation, activity, gene expression antioxidant enzymes, generation. Plants exposed to a temperature 40 °C for 6 h per day over 15 days, then allowed recover at 28 °C. Heat-stressed showed increased oxidative stress, with higher levels H2O2 TBARS (thiobarbituric acid reactive substances) ACS ethylene evolution, generation, which turn leads accumulation enzymes reduced attributes. In tested cultivar, exogenous application SNP under improved photosynthesis by enhancing enzymatic defense system. Potentially, promoter AOX (alternative oxidase) played role maintaining redox homeostasis lowering levels. genes GR photosystem II core protein encoding psbA psbB highly up-regulated nitric oxide treated heat-stressed plants, indicating that positively impacted high stress. Moreover, supplementation optimized regulate assimilation metabolism system, adverse effects. tolerance increasing osmolytes resulting enhanced photosynthesis.

Язык: Английский

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Key role of reactive oxygen species-scavenging system in nitric oxide and hydrogen sulfide crosstalk-evoked thermotolerance in maize seedlings

Frontiers in Plant Science, Год журнала: 2022, Номер 13

Опубликована: Ноя. 7, 2022

Nitric oxide (NO) and hydrogen sulfide (H 2 S) are novel signaling molecules, which participate in plant growth, development, response to stress. In this study root-irrigation with 0.15 mM sodium nitroprusside (SNP, NO donor) up-regulated gene expression of L-CYSTEINE DESULFHYDRASE1 ( LCD1 ), activities L-cysteine desulfhydrase (LCD) D-cysteine (DCD), as well an endogenous H S level, compared control seedlings. The SNP-up-regulated effects were enhanced by 0.5 hydrosulfide (NaHS, donor), but weakened scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO) hypotaurine (HT) alone. NaHS had no significant effect on activity nitrate reductase (NR, a candidate producing enzyme). These data indicate that could trigger the LCD/H pathway maize To further investigate crosstalk thermotolerance seedlings, parameters reactive oxygen species (ROS)-scavenging system estimated. results show SNP increased survival rate tissue viability, decreased malondialdehyde (MDA) accumulation, electrolyte leakage seedlings under heat stress (HS), implying improve NO-improved was impaired inhibitor DL-propargylglycine (PAG) HT Similarly, DEHYDROASCORBATE REDUCTASE DHAR) GLUTATHIONE REDUCTASE1 GR1 ); ascorbate peroxidase, glutathione reductase, catalase; levels ascorbic acid, glutathione, flavonoids, carotenoids, total phenols. also reduced peroxide superoxide radical accumulation HS control. ROS their PAG hint evoke triggering pathway, ROS-scavenging played key role crosstalk-evoked thermotolerance.

Язык: Английский

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