Microorganisms in Plant Growth and Development: Roles in Abiotic Stress Tolerance and Secondary Metabolites Secretion

Microorganisms, Год журнала: 2022, Номер 10(8), С. 1528 - 1528

Опубликована: Июль 28, 2022

Crops aimed at feeding an exponentially growing population are often exposed to a variety of harsh environmental factors. Although plants have evolved ways adjusting their metabolism and some also been engineered tolerate stressful environments, there is still shortage food supply. An alternative approach explore the possibility using rhizosphere microorganisms in mitigation abiotic stress hopefully improve production. Several studies shown that rhizobacteria mycorrhizae organisms can help tolerance by enhancing plant growth; stimulating production phytohormones, siderophores, solubilizing phosphates; lowering ethylene levels; upregulating expression dehydration response antioxidant genes. This article shows secretion secondary metabolites as additional mechanism employed against stress. The understanding these mechanisms will efficacy plant-growth-promoting microorganisms.

Язык: Английский

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Insights into plant salt stress signaling and tolerance

Journal of genetics and genomics/Journal of Genetics and Genomics, Год журнала: 2023, Номер 51(1), С. 16 - 34

Опубликована: Авг. 29, 2023

Soil salinization is an essential environmental stressor, threatening agricultural yield and ecological security worldwide. Saline soils accumulate excessive soluble salts which are detrimental to most plants by limiting plant growth productivity. It of great necessity for efficiently deal with the adverse effects caused salt stress survival successful reproduction. Multiple determinants tolerance have been identified in plants, cellular physiological mechanisms response adaption intensely characterized. Plants respond signals rapidly initiate signaling pathways re-establish homeostasis adjusted metabolism. This review summarizes advances perception, signaling, plants. A better understanding resistance will contribute improving crop performance under saline conditions using multiple engineering approaches. The rhizosphere microbiome-mediated as well chemical priming enhanced also discussed this review.

Язык: Английский

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Impact of Temperature and Water on Seed Germination and Seedling Growth of Maize (Zea mays L.)

Agronomy, Год журнала: 2022, Номер 12(2), С. 397 - 397

Опубликована: Фев. 5, 2022

Germination and seedling development are essential stages in a plant’s life cycle, greatly influenced by temperature moisture conditions. The aim of this study was to determine maize (Zea mays L.) seeds’ germination under various abiotic stresses. Eight different levels, 5, 10, 15, 20, 25, 30, 35, 40 °C, were used. Drought waterlogging stresses tested using 30 water levels based on one-milliliter intervals as percentages thousand kernel weight (TKW) at 20 25 °C. Seedling density the use antifungals also examined. Temperature significantly affected duration growth, °C found be ideal with an optimal range less than occurred 25% TKW. for growth higher broader germination. Seed size assisted defining requirements providing accurate basis. present research established optimum supply 150–325% TKW development. A total 6 seeds per 9 cm Petri dish may preferable over greater densities. technique priming antifungal solution before planting observed have better effect applying it media.

Язык: Английский

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From Nature to Lab: A Review of Secondary Metabolite Biosynthetic Pathways, Environmental Influences, and In Vitro Approaches

Metabolites, Год журнала: 2023, Номер 13(8), С. 895 - 895

Опубликована: Июль 28, 2023

Secondary metabolites are gaining an increasing importance in various industries, such as pharmaceuticals, dyes, and food, is the need for reliable efficient methods of procuring these compounds. To develop sustainable cost-effective approaches, a comprehensive understanding biosynthetic pathways factors influencing secondary metabolite production essential. These compounds unique type natural product which recognizes oxidative damage caused by stresses, thereby activating defence mechanism plants. Various have been developed to enhance The elicitor-induced vitro culture technique considered tool studying improving In present review, we documented role under diverse environmental stresses. Furthermore, practical strategy obtaining consistent abundant via elicitation agents used culturing techniques also mentioned. By elucidating intricate interplay regulatory factors, this review paves way future advancements high-value metabolites.

Язык: Английский

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Exploring the potential of endophyte-plant interactions for improving crop sustainable yields in a changing climate

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

Опубликована: Март 20, 2024

Climate change poses a major threat to global food security, significantly reducing crop yields as cause of abiotic stresses, and for boosting the spread new old pathogens pests. Sustainable management route mitigation challenge recruiting an array solutions tools aims. Among these, deployment positive interactions between micro-biotic components agroecosystems plants can play highly significant role, part agro-ecological revolution. Endophytic microorganisms have emerged promising solution tackle this challenge. Arbuscular Mycorrhizal Fungi (AMF) endophytic bacteria fungi demonstrated their potential alleviate stresses such drought heat stress, well impacts biotic stresses. They enhance in sustainable way also by other mechanisms, improving nutrient uptake, or direct effects on plant physiology. In review we summarize update main types endophytes, highlight several studies that demonstrate efficacy explore possible avenues implementing crop-microbiota interactions. The mechanisms underlying these are complex require comprehensive understanding. For reason, omic technologies genomics, transcriptomics, proteomics, metabolomics been employed unravel, higher level information, network microorganisms. Therefore, discuss various approaches techniques used so far study plant-endophyte

Язык: Английский

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Augmenting abiotic stress tolerance and root architecture: The function of phytohormone-producing PGPR and their interaction with nanoparticles

South African Journal of Botany, Год журнала: 2024, Номер 167, С. 612 - 629

Опубликована: Март 8, 2024

Язык: Английский

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Molecular basis of priming-induced acquired tolerance to multiple abiotic stresses in plants

Journal of Experimental Botany, Год журнала: 2022, Номер 73(11), С. 3355 - 3371

Опубликована: Март 4, 2022

Abstract The growth, survival, and productivity of plants are constantly challenged by diverse abiotic stresses. When exposed to stress for the first time, they can capture molecular information store it as a form memory, which enables them competently rapidly respond subsequent stress(es). This process is referred priming-induced or acquired response. In this review, we discuss how (i) storage retrieval from memory modulates plant physiological, cellular, processes in response stress(es), (ii) intensity, recurrence, duration priming stimuli influences outcomes response, (iii) varying responses at different developmental stages. We highlight current understanding distinct common manifested epigenetic, (post-)transcriptional, post-translational levels mediated stress-associated molecules metabolites, including phytohormones. conclude emphasizing unravelling circuitry underlying priming-stimuli-induced could propel use management practice crop plants. practice, combination with precision agriculture, aid increasing yield quantity quality meet rising demand food.

Язык: Английский

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Seed biopriming for sustainable agriculture and ecosystem restoration

Microbial Biotechnology, Год журнала: 2023, Номер 16(12), С. 2212 - 2222

Опубликована: Июль 25, 2023

Abstract The utilization of microbial inoculants in the realm sustainable agricultural and ecosystem restoration has witnessed a surge recent decades. This rise is largely attributed to advancements our understanding plant–microbe interactions, urgency reduce dependence on agrochemicals growing societal demand for strategies management. However, despite rapid growth bio‐inoculants sector, certain limitations persist concerning their efficacy performance under field condition. Here, we propose that seed biopriming, an effective inoculant technique integrating both biological agents (the priming beneficial microbes seeds) physiological aspects (hydration seeds improved metabolically activity), significant potential mitigate these limitations. method increases protection against soil‐borne pathogens soil pollutants, such as salts heavy metals, while promoting germination rate uniformity, leading overall primary productivity health. Furthermore, argue coating can facilitate transgenerational associations microbes, refine plant microbiomes, maintain legacies microflora. review article aims improve biopriming approach potent valuable tool achieving agriculture successful restoration.

Язык: Английский

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Cover crop root exudates impact soil microbiome functional trajectories in agricultural soils

Microbiome, Год журнала: 2024, Номер 12(1)

Опубликована: Сен. 28, 2024

Язык: Английский

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Plant growth promotion via priming with volatile organic compounds emitted from Bacillus vallismortis strain EXTN-1

Frontiers in Microbiology, Год журнала: 2025, Номер 15

Опубликована: Янв. 10, 2025

Volatile organic compounds (VOCs) produced by potential plant growth-promoting rhizobacteria (PGPR) play an important role in interactions. However, the mechanisms underlying this phenomenon are not well understood. Our findings show that influence of VOCs from PGPR strain Bacillus vallismortis (EXTN-1) on tobacco growth is dependent culture media used. The released sugar-rich such as potato dextrose agar (PDA) and King's B (KB) were highly effective. exposure to nutrient (NA), tryptic soy (TSA), Luria-Bertani (LB) resulted chlorosis stunted growth. This effect was caused discharge a large amount ammonia altered pH media. Seedlings exposed for 10 days exhibited improved even after eliminated under greenhouse conditions. Priming seeds with 24 48 h induced higher than untreated control, better compared treatment. Chemical characterization emitted EXTN-1 different using solid-phase microextraction (SPME) coupled gas chromatography-mass spectrometry (GC-MS) showed presence 2,3-butanedione monoxime all spectra. 1-butanol prominent peak VOC grown KB NA, while acetoin highest PDA, followed KB. Heneicosane benzaldehyde exclusively NA media, these synthetic I-plate assay. work indicates EXTN-1.

Язык: Английский

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