Plant Growth-Promoting Rhizobacteria (PGPR): A Rampart against the Adverse Effects of Drought Stress

Water, Год журнала: 2023, Номер 15(3), С. 418 - 418

Опубликована: Янв. 19, 2023

Abiotic stress significantly limits plant growth and production. Drought, in particular, is a severe constraint that affects agricultural productivity on global scale. Water induces plants set of morpho-anatomical (modification root leaf structure), physiological, biochemical (relative water content, membrane stability, photosynthesis, hormonal balance, antioxidant systems, osmolyte accumulation) changes mainly employed to cope with the drought stress. These strategies allow overcome unfavorable period limited availability. Currently, promising alternative available improve tolerance under conditions. The use osmotolerant growth-promoting rhizobacteria (PGPR) as inoculants can alleviate by increasing efficiency plant. PGPR drought, through morphology architecture system, production phytohormones, extracellular polysaccharides, ACC 1-(aminocyclopropane-1-carboxylate) deaminase, volatile chemicals, accumulation. They may also enhance defense system induce transcriptional regulation response genes. This review addresses effects growth, adaptation, conditions discusses significant potential modulate physiological against scarcity, ensuring survival improving resistance crops.

Язык: Английский

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Stress memory and its regulation in plants experiencing recurrent drought conditions

Theoretical and Applied Genetics, Год журнала: 2023, Номер 136(2)

Опубликована: Фев. 1, 2023

Developing stress-tolerant plants continues to be the goal of breeders due their realized yields and stability. Plant responses drought have been studied in many different plant species, but occurrence stress memory as well potential mechanisms for regulation is not yet described. It has observed that hold on past events a way adjusts response new challenges without altering genetic constitution. This ability could enable training face future increase frequency intensity. A better understanding memory-associated leading alteration gene expression how they link physiological, biochemical, metabolomic morphological changes would initiate diverse opportunities breed genotypes through molecular breeding or biotechnological approaches. In this perspective, review discusses types gives an overall view using general examples. Further, focusing stress, we demonstrate coordinated epigenetic control mechanisms, associated transcription at genome level integrated biochemical physiological cellular following recurrent exposures. Indeed, alterations specific networks facilitate acclimation survival individual during repeated stress.

Язык: Английский

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Mechanisms and Applications of Bacterial Inoculants in Plant Drought Stress Tolerance

Microorganisms, Год журнала: 2023, Номер 11(2), С. 502 - 502

Опубликована: Фев. 17, 2023

Agricultural systems are highly affected by climatic factors such as temperature, rain, humidity, wind, and solar radiation, so the climate its changes major risk for agricultural activities. A small portion of areas Brazil is irrigated, while vast majority directly depends on natural variations rains. The increase in temperatures due to change will lead increased water consumption farmers a reduction availability, putting production capacity at risk. Drought limiting environmental factor plant growth one phenomena that most affects productivity. response plants stress complex involves coordination between gene expression integration with hormones. Studies suggest bacteria have mechanisms mitigate effects promote more significant these species. underlined mechanism root-to-shoot phenotypic rate, architecture, hydraulic conductivity, conservation, cell protection, damage restoration through integrating phytohormones modulation, stress-induced enzymatic apparatus, metabolites. Thus, this review aims demonstrate how growth-promoting could negative responses exposed provide examples technological conversion applied agroecosystems.

Язык: Английский

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Drought Tolerance in Plants: Physiological and Molecular Responses

Plants, Год журнала: 2024, Номер 13(21), С. 2962 - 2962

Опубликована: Окт. 23, 2024

Drought, a significant environmental challenge, presents substantial risk to worldwide agriculture and the security of food supplies. In response, plants can perceive stimuli from their environment activate defense pathways via various modulating networks cope with stress. Drought tolerance, multifaceted attribute, be dissected into distinct contributing mechanisms factors. Osmotic stress, dehydration dysfunction plasma endosome membranes, loss cellular turgidity, inhibition metabolite synthesis, energy depletion, impaired chloroplast function, oxidative stress are among most critical consequences drought on plant cells. Understanding intricate interplay these physiological molecular responses provides insights adaptive strategies employ navigate through Plant cells express withstand reverse effects These include osmotic adjustment preserve turgor, synthesis protective proteins like dehydrins, triggering antioxidant systems counterbalance A better understanding tolerance is crucial for devising specific methods improve crop resilience promote sustainable agricultural practices in environments limited water resources. This review explores employed by address challenges

Язык: Английский

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Harnessing Phytohormones: Advancing Plant Growth and Defence Strategies for Sustainable Agriculture

Physiologia Plantarum, Год журнала: 2024, Номер 176(3)

Опубликована: Май 1, 2024

Abstract Phytohormones, pivotal regulators of plant growth and development, are increasingly recognized for their multifaceted roles in enhancing crop resilience against environmental stresses. In this review, we provide a comprehensive synthesis current research on utilizing phytohormones to enhance productivity fortify defence mechanisms. Initially, introduce the significance orchestrating growth, followed by potential utilization bolstering defences diverse stressors. Our focus then shifts an in‐depth exploration mediating responses biotic stressors, particularly insect pests. Furthermore, highlight impact agricultural production while underscoring existing gaps limitations hindering widespread implementation practices. Despite accumulating body field, integration into agriculture remains limited. To address discrepancy, propose framework investigating intricate interplay between sustainable agriculture. This advocates adoption novel technologies methodologies facilitate effective deployment settings also emphasizes need through rigorous field studies. By outlining roadmap advancing agriculture, review aims catalyse transformative changes practices, fostering sustainability settings.

Язык: Английский

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Exploring strigolactones for inducing abiotic stress tolerance in plants

Czech Journal of Genetics and Plant Breeding, Год журнала: 2024, Номер 60(2), С. 55 - 69

Опубликована: Янв. 2, 2024

Strigolactones (SLs) are a comparatively novel class of phytohormones that involved in the maintenance plant architecture with key regulation lateral branching. They also reported to play an important role regulating responses various abiotic stresses. The potential SLs improve crop resilience and productivity needs be effectively translated into agriculture. Therefore, both endogenous biosynthesis their exogenous application need thoroughly investigated understand exploit mechanism underlying alleviation stress responses. Although several reviews have emphasised plants under stress, upon has been less explored. Accordingly, this review, although we briefly discussed beneficial effects production different sections, our main focus is summarise influence on growth development species grown stresses, including drought, nutrient, heavy metal, salinity stress. Apart from providing overview transcriptomic studies conducted observe alleviating responses, research gaps field were discussed. review provides insight for researchers conduct further fill gap so they can used sustainable

Язык: Английский

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Melatonin: Discovery, Biosynthesis, Phytohormones Crosstalk, and Roles in Agricultural Crops under Abiotic Stress Conditions

Environmental and Experimental Botany, Год журнала: 2024, Номер 226, С. 105942 - 105942

Опубликована: Авг. 13, 2024

Язык: Английский

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Dressed Up to the Nines: The Interplay of Phytohormones Signaling and Redox Metabolism During Plant Response to Drought

Plants, Год журнала: 2025, Номер 14(2), С. 208 - 208

Опубликована: Янв. 13, 2025

Plants must effectively respond to various environmental stimuli achieve optimal growth. This is especially relevant in the context of climate change, where drought emerges as a major factor globally impacting crops and limiting overall yield potential. Throughout evolution, plants have developed adaptative strategies for stimuli, with plant hormones reactive oxygen species (ROS) playing essential roles their development. Hormonal signaling maintenance ROS homeostasis are interconnected, indispensable growth, development, stress responses orchestrating diverse molecular during adversities. Nine principal classes phytohormones been categorized: auxins, brassinosteroids, cytokinins, gibberellins primarily oversee developmental growth regulation, while abscisic acid, ethylene, jasmonic salicylic strigolactones main orchestrators responses. Coordination between transcriptional regulation crucial effective responses, stress. Understanding interplay pivotal elucidating mechanisms involved review provides an overview intricate relationship ROS, redox metabolism, nine different plants, shedding light on potential enhancing tolerance sustainable crop production.

Язык: Английский

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An overview and recent progress of plant growth regulators (PGRs) in the mitigation of abiotic stresses in fruits: A review

Scientia Horticulturae, Год журнала: 2022, Номер 309, С. 111621 - 111621

Опубликована: Окт. 19, 2022

Язык: Английский

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Molecular Breeding and Drought Tolerance in Chickpea

Life, Год журнала: 2022, Номер 12(11), С. 1846 - 1846

Опубликована: Ноя. 11, 2022

L. is the third greatest widely planted imperative pulse crop worldwide, and it belongs to Leguminosae family. Drought utmost common abiotic factor on plants, distressing their water status limiting growth development. Chickpea genotypes have natural ability fight drought stress using certain strategies viz., escape, avoidance tolerance. Assorted breeding methods, including hybridization, mutation, marker-aided breeding, genome sequencing along with omics approaches, could be used improve chickpea germplasm lines(s) against stress. Root features, for instance depth root biomass, been recognized as beneficial morphological factors managing terminal tolerance in chickpea. Marker-aided selection, example, a genomics-assisted (GAB) strategy that can considerably increase accuracy competence. These technologies, notably marker-assisted omics, plant physiology knowledge, underlined importance of future improvement programmes generate drought-tolerant cultivars(s).

Язык: Английский

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