Green vanguards: Harnessing the power of plant antioxidants, signal catalysts, and genetic engineering to combat reactive oxygen species under multiple abiotic stresses

Plant Stress, Год журнала: 2024, Номер 13, С. 100547 - 100547

Опубликована: Июль 24, 2024

The resilience of plants to concurrent abiotic stresses—such as drought, salinity, extreme temperatures, heavy metals, and elevated CO2 levels—is paramount in the era climate change. Reactive oxygen species (ROS), traditionally perceived mere byproducts metabolic processes, serve a dual role: crucial signaling molecules that facilitate plant adaptation deleterious agents causing cellular damage when excessively accumulated. In this review, we highlighted intricate equilibrium maintain through both enzymatic non-enzymatic antioxidant defenses mitigate ROS-mediated oxidative stress, emphasizing sophisticated strategies deploy counteract spectrum combined stresses. Some species, however, exhibit insufficient enhancement their intrinsic counterbalance stress-induced ROS accumulation consequent damage. Consequently, explored pivotal role diverse further strengthening defenses, offering profound insights into bolstering resilience. Furthermore, advent genetic engineering technologies unveils novel avenues for crop improvement, with strategic overexpression genes such SOD, APX, CAT, GPX, DHAR, GR, GST showing immense potential fortifying against challenges imposed by multiple Future perspectives entail deepening our understanding molecular mechanisms governing generation scavenging, investigating synergistic effects co-expressing genes, elucidating interactions between endogenous hormones exogenously applied molecules. We advocate integrative research methodologies, combining field experiments, controlled environmental studies, computational modeling, bridge gap laboratory discoveries practical agricultural applications.

Язык: Английский

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Effects of salicylic acid on growth, physiology, and gene expression in rice seedlings under salt and drought stress

Plant Stress, Год журнала: 2024, Номер 11, С. 100413 - 100413

Опубликована: Фев. 23, 2024

Salt and drought stress has been an important factor limiting agricultural production, SA is phenolic involved in response, but the function of response to dual salt rice not clear. In this study, effects mechanisms exogenous SA-triggered adaptation were investigated by detecting physiological biochemical indexes expression tolerance genes. The results showed that application could significantly increase antioxidant enzyme activities seedlings under stress, thereby reducing contents H2O2 MDA maintaining growth seedlings. Moreover, genes abiotic such as OsDREB2A, OsSAPK8, OsSAPK10 OsMYB2, up-regulated treatment, further enhance those like OsDREB2A suggesting might regulate activity via inducing enhancing rice. will enrich knowledge provide a reference for studying mechanism resistance rice, breeding new germplasm with improved resistance.

Язык: Английский

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An Overview of the Mechanisms through Which Plants Regulate ROS Homeostasis under Cadmium Stress

Antioxidants, Год журнала: 2024, Номер 13(10), С. 1174 - 1174

Опубликована: Сен. 26, 2024

Cadmium (Cd

Язык: Английский

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Adaptive responses of nitric oxide (NO) and its intricate dialogue with phytohormones during salinity stress

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 208, С. 108504 - 108504

Опубликована: Март 1, 2024

Nitric oxide (NO) is a gaseous free radical that acts as messenger for various plant phenomena corresponding to photomorphogenesis, fertilisation, flowering, germination, growth, and productivity. Recent developments have suggested the critical role of NO in inducing adaptive responses plants during salinity. minimises salinity-induced photosynthetic damage improves plant-water relation, nutrient uptake, stomatal conductance, electron transport, ROS antioxidant metabolism. contributes active participation ABA-mediated regulation. Similar crosstalk with other phytohormones such auxins (IAAs), gibberellins (GAs), cytokinins (CKs), ethylene (ET), salicylic acid (SA), strigolactones (SLs), brassinosteroids (BRs) were also observed. Additionally, we discuss interaction signalling molecules reactive oxygen species (ROS) sulphur (RSS). Conclusively, present review traces events NO-induced morpho-physiological adjustments under salt stress discusses how modulations upgrade resilience.

Язык: Английский

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Light-driven zinc oxide quantum dots control pear fire blight disease by inhibiting pathogen growth and modulating plant defense response

Pesticide Biochemistry and Physiology, Год журнала: 2025, Номер 208, С. 106286 - 106286

Опубликована: Янв. 7, 2025

Язык: Английский

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Enhancing bread wheat resilience to cadmium and drought stress: insights from physiological, morphological, and transcriptomic responses to biochar and 24-epibrassinolide application

Biochar, Год журнала: 2025, Номер 7(1)

Опубликована: Март 17, 2025

Язык: Английский

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Somatic drought stress memory affects leaf morpho-physiological traits of plants via epigenetic mechanisms and phytohormonal signalling

Plant Gene, Год журнала: 2025, Номер unknown, С. 100509 - 100509

Опубликована: Апрель 1, 2025

Язык: Английский

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Enhancing Cercis siliquastrum seedling quality to meet ecological challenges in afforestation: influence of the combined effects of light, water stress, and zeolite amendment

Trees, Год журнала: 2025, Номер 39(3)

Опубликована: Апрель 18, 2025

Язык: Английский

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Contrasting strategies in morphological and physiological response to drought stress among temperate forest understory forbs and graminoids

Plant Biology, Год журнала: 2024, Номер unknown

Опубликована: Дек. 3, 2024

Abstract Drought stress can profoundly affect plant growth and physiological vitality, yet there is a notable scarcity of controlled drought experiments focused on herbaceous species the forest understorey. In this study, we collected seeds from five forb four graminoid common in European temperate forests. Seeds were germinated under glasshouse conditions subjected to moderate for 5 weeks. We assessed biomass partitioning, stomatal leaf morphology, gas exchange, minimum conductance ( g min ), chlorophyll fluorescence parameters. Comparison two ecological guilds revealed that graminoids had higher R/S, improved WUE, greater carboxylation efficiency, enhanced non‐photochemical quenching compared forbs. contrast, forbs significantly lower , with total area. Despite these differences morpho‐physiological functional traits, both groups experienced similar relative reduction after stress. Key predictors accumulation included photochemical quenching, area . A negative correlation between suggests plants residual water loss closure accumulate more Additionally, was positively correlated guard cell length, suggesting larger stomata contribute loss. Contrasting strategies responses define groups. graminoids, resistance emphasis tolerance as survival strategy. able maintain area, indicating competitive strategy maximizing resource acquisition.

Язык: Английский

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Responses of Physiological Traits and Soil Properties in Pinus thunbergia and Euonymus japonicus Saplings under Drought and Cadmium (Cd) Stress

Forests, Год журнала: 2024, Номер 15(7), С. 1141 - 1141

Опубликована: Июнь 29, 2024

Pinus thunbergii and Euonymus japonicus are two species commonly found in arid semi-arid areas; however, their responses terms of physiological traits soil properties under drought cadmium (Cd) stress not clear. In this study, we carried out single combined treatments consisting Cd on saplings P. E. investigated the both species. For species, stress, was observed xylem phloem, while root Cd2+ flow rate fluctuated at different levels stress. Under as level increased, abscisic acid (ABA) content leaves roots increased significantly, indole-3-acetic (IAA) decreased significantly. Moreover, non-structural carbohydrate (NSC) leaves, stems, roots, well leaf chlorophyll content, water potential hydraulic conductivity significantly decreased, which exacerbated by stress; led to a more significant decrease stresses. Meanwhile, no changes conduit lumen diameter double-wall thickness were observed, except for double cell wall tracheid, increased. addition, stresses induced i.e., ammonium nitrogen, nitrate effective phosphorus increase The diversity microbial community change its abundance showed opposite pattern, indicates that effect microorganisms is than drought. activity sucrase catalase when compared, decreased. However, compared. We effects Our study provides detailed information Cd.

Язык: Английский

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