Signaling and crosstalk of rhizobacterial and plant hormones that mediate abiotic stress tolerance in plants DOI Creative Commons
Becky Nancy Aloo, Jacynthe Dessureault‐Rompré, Vikas Tripathi

et al.

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: June 30, 2023

Agricultural areas exhibiting numerous abiotic stressors, such as elevated water stress, temperatures, and salinity, have grown a result of climate change. As such, stresses are some the most pressing issues in contemporary agricultural production. Understanding plant responses to stressors is important for global food security, change adaptation, improving crop resilience sustainable agriculture, Over decades, explorations been made concerning tolerance these environmental stresses. Plant growth-promoting rhizobacteria (PGPR) their phytohormones players involved developing resistance stress plants. Several studies investigated part ability plants withstand adapt non-living factors, but very few focused on rhizobacterial hormonal signaling crosstalk that mediate The main objective this review evaluate functions PGPR outline current research communication govern responses. also includes gene networks regulation under diverse stressors. understanding using signaling. It envisaged offer useful approach increasing various However, further can reveal unclear patterns interactions between tolerance.

Language: Английский

Synergistic interactions of nanoparticles and plant growth promoting rhizobacteria enhancing soil-plant systems: a multigenerational perspective DOI Creative Commons
Krishan K. Verma, Abhishek Joshi,

Xiu-Peng Song

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: April 29, 2024

Sustainable food security and safety are major concerns on a global scale, especially in developed nations. Adverse agroclimatic conditions affect the largest agricultural-producing areas, which reduces production of crops. Achieving sustainable is challenging because several factors, such as soil flooding/waterlogging, ultraviolet (UV) rays, acidic/sodic soil, hazardous ions, low high temperatures, nutritional imbalances. Plant growth-promoting rhizobacteria (PGPR) widely employed in-vitro they recognized more environmentally sustainably friendly approach to increasing crop yield contaminated fertile soil. Conversely, use nanoparticles (NPs) an amendment has recently been proposed economical way enhance texture improving agricultural yields. Nowadays, various research experiments have combined or individually applied with PGPR NPs for balancing elements response control adverse situations, expectation that both additives might perform well together. According findings, interactive applications significantly increase yields than alone. The present review summarized functional mechanistic basis role NPs. However, this article focused potential direction realize possible interaction at large scale upcoming years.

Language: Английский

Citations

20
Applying microbial biostimulants and drought-tolerant genotypes to enhance barley growth and yield under drought stress DOI Creative Commons
Mohamed Ferioun,

Ilham Zouitane,

Said Bouhraoua

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 7, 2025

With climate change, the frequency of regions experiencing water scarcity is increasing annually, posing a significant challenge to crop yield. Barley, staple consumed and cultivated globally, particularly susceptible detrimental effects drought stress, leading reduced yield production. Water adversely affects multiple aspects barley growth, including seed germination, biomass production, shoot root characteristics, osmotic status, photosynthesis, induces oxidative resulting in considerable losses grain its components. In this context, present review aims underscore importance selecting drought-tolerant genotypes utilizing bio-inoculants constructed from beneficial microorganisms as an agroecological approach enhance growth production resilience under varying environmental conditions. Selecting with robust physiological agronomic tolerance can mitigate diverse Plant Growth Promoting Rhizobacteria (PGPR) play crucial role promoting plant through nutrient solubilization, nitrogen fixation, phytohormone exopolysaccharide secretion, enzyme activity enhancement, many other mechanisms. Applying containing PGPR, improves barley's thereby minimizing caused by scarcity.

Language: Английский

Citations

3
Effects of exogenous spraying of melatonin on the growth of Platycrater arguta under drought stress DOI Creative Commons

Xule Zhang,

Xiaohua Ma,

Yaping Hu

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 17, 2025

Platycrater arguta is a rare and endangered deciduous shrub originating from the Tertiary Period. Understanding its drought tolerance crucial for conservation efforts enhancing resilience to environmental stress. This study aimed assess effects of varying levels stress on phenotype physiological-biochemical characteristics P. arguta. The subjected different using 10%, 20%, 30% polyethylene glycol-6000 (PEG-6000) over 10-day period. Additionally, exogenous melatonin application at various concentrations (including 100 µM) were examined determine potential in alleviating drought-induced damage. Key parameters measured included leaf relative water content, net photosynthetic rate (Pn), antioxidant enzyme activity, soluble sugar content. Drought significantly inhibited growth As PEG-6000 concentration increased, content decreased, while wilting severity, membrane damage, increased. A caused irreversible leading plant death. Exogenous µM alleviated this damage by increasing efficiency, boosting accumulating osmotic regulators, reducing desiccation. demonstrated that sensitive severe conditions, with causing However, improved plant's upregulating expression ABI1 downregulating genes such as AUX1A-2, IAA2-2, HP2-1. finding highlights protective agent against stress, providing valuable insights enhancement arguta's challenges.

Language: Английский

Citations

2
Biochar from agricultural waste as a strategic resource for promotion of crop growth and nutrient cycling of soil under drought and salinity stress conditions: a comprehensive review with context of climate change DOI
Ghulam Murtaza, Zeeshan Ahmed, Rashid Iqbal

et al.

Journal of Plant Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 52

Published: Feb. 6, 2025

Language: Английский

Citations

2
Strategies and prospects for biostimulants to alleviate abiotic stress in plants DOI Creative Commons
Ying Ma, Helena Freitas, Maria Celeste Dias

et al.

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Dec. 22, 2022

Global climate change-induced abiotic stresses (e.g., drought, salinity, extreme temperatures, heavy metals, and UV radiation) have destabilized the fragile agroecosystems impaired plant performance thereby reducing crop productivity quality. Biostimulants, as a promising eco-friendly approach, are widely used to address environmental concerns fulfill need for developing sustainable/modern agriculture. Current knowledge revealed that animal derived stimulants seaweeds phytoextracts, humic substances, protein hydrolysate) well microbial beneficial bacteria or fungi) great potential elicit tolerance various thus enhancing growth performance-related parameters (such root growth/diameter, flowering, nutrient use efficiency/translocation, soil water holding capacity, activity). However, successfully implement biostimulant-based agriculture in field under changing climate, understanding of agricultural functions action mechanism biostimulants coping with at physicochemical, metabolic, molecular levels is needed. Therefore, this review attempts unravel underlying mechanisms mediated by diverse relation stress alleviation discuss current challenges their commercialization implementation conditions.

Language: Английский

Citations

65
A meta‐analysis on morphological, physiological and biochemical responses of plants with PGPR inoculation under drought stress DOI

Xiaowen Zhao,

Xiaomai Yuan,

Yuanjun Xing

et al.

Plant Cell & Environment, Journal Year: 2022, Volume and Issue: 46(1), P. 199 - 214

Published: Oct. 17, 2022

Plant growth-promoting rhizobacteria (PGPR) can help plants to resist drought stress. However, the mechanisms of how PGPR inoculation affect plant status under remain incompletely understood. We performed a meta-analysis response by compiling data from 57 PGPR-inoculation studies, including 2, 387 paired observations on morphological, physiological and biochemical parameters well-watered conditions. compare effect performances among different groups controls treatments. Our results reveal that enables restore themselves drought-stressed near state, C4 recover better stress than C3 plants. Furthermore, is more effective underdrought conditions in increasing biomass, enhancing photosynthesis inhibiting oxidant damage, responses was stronger Additionally, belonging taxa with functional traits have varying degrees drought-resistance effects These are important improve our understanding beneficial enhanced

Language: Английский

Citations

63
Mitigating abiotic stress: microbiome engineering for improving agricultural production and environmental sustainability DOI
Manisha Phour, S. S. Sindhu

Planta, Journal Year: 2022, Volume and Issue: 256(5)

Published: Sept. 20, 2022

Language: Английский

Citations

61
Actinobacteria–Plant Interactions in Alleviating Abiotic Stress DOI Creative Commons
Manik Prabhu Narsing Rao, Karan Lohmaneeratana,

Chakrit Bunyoo

et al.

Plants, Journal Year: 2022, Volume and Issue: 11(21), P. 2976 - 2976

Published: Nov. 4, 2022

Abiotic stressors, such as drought, flooding, extreme temperature, soil salinity, and metal toxicity, are the most important factors limiting crop productivity. Plants use their innate biological systems to overcome these abiotic stresses caused by environmental edaphic conditions. Microorganisms that live in around plant have incredible metabolic abilities mitigating stress. Recent advances multi-omics methods, metagenomics, genomics, transcriptomics, proteomics, helped understand how plants interact with microbes environment. These methods aid construction of various models plants, resulting a better knowledge all exchanges engaged during interactions. Actinobacteria ubiquitous excellent candidates for growth promotion because prevalence soil, rhizosphere, capacity colonize roots surfaces, ability produce secondary metabolites. Mechanisms which actinobacteria stress include production osmolytes, hormones, enzymes, maintaining osmotic balance, enhancing nutrient availability. With characteristics, members promising microbial inoculants. This review focuses on actinobacterial diversity regions well impact plant-associated actinobacteria-mediated mitigation processes. The study discusses role techniques expanding plant–actinobacteria interactions, overcoming aims encourage further investigations into what may be considered relatively unexplored area research.

Language: Английский

Citations

41
Physiological and molecular insight of microbial biostimulants for sustainable agriculture DOI Creative Commons

Priya Kaushal,

Nilofer Ali, Shivani Saini

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Jan. 30, 2023

Increased food production to cater the need of growing population is one major global challenges. Currently, agro-productivity under threat due shrinking arable land, increased anthropogenic activities and changes in climate leading frequent flash floods, prolonged droughts sudden fluctuation temperature. Further, warm climatic conditions increase disease pest incidences, ultimately reducing crop yield. Hence, collaborated efforts are required adopt environmentally safe sustainable agro practices boost growth productivity. Biostimulants appear as a promising means improve plants even stressful conditions. Among various categories biostimulants, microbial biostimulants composed microorganisms such plant growth-promoting rhizobacteria (PGPR) and/or microbes which stimulate nutrient uptake, produce secondary metabolites, siderophores, hormones organic acids, participate nitrogen fixation, imparts stress tolerance, enhance quality yield when applied plants. Though numerous studies convincingly elucidate positive effects PGPR-based on plants, yet information meagre regarding mechanism action key signaling pathways (plant hormone modulations, expression pathogenesis-related proteins, antioxidants, osmolytes etc.) triggered by these present review focuses molecular activated PGPR based facing abiotic biotic The also analyses common mechanisms modulated combat stresses. highlights traits that have been modified through transgenic approach physiological responses akin application target

Language: Английский

Citations

40
Coupling effects of irrigation amount and fertilization rate on yield, quality, water and fertilizer use efficiency of different potato varieties in Northwest China DOI Creative Commons
Fan Zhang,

Mengru Chen,

Jintao Fu

et al.

Agricultural Water Management, Journal Year: 2023, Volume and Issue: 287, P. 108446 - 108446

Published: July 13, 2023

Water shortage, excessive fertilization and improper variety selection have seriously restricted the sustainable development of potato in Northwest China. Two-year field experiments were conducted 2021 2022 to explore effects irrigation amount fertilizer application rate on growth, yield, nutrient uptake, quality, water, use efficiency, soil enzyme activity economic benefits different varieties. Three levels W1 (100% crop evapotranspiration (ETC)), W2 (80% ETC) W3 (60% ETC). rates F1 (240 kg N ha−1), F2 (180 ha−1) F3 (120 ha−1). locally grown cultivars V1 (Feiurita), V2 (Longshu 7), V3 (Qingshu 9). The results showed that amount, significantly influenced tuber commercial tubers, maximum weight, reduced sugar content, water productivity (WPI), partial (PFP), catalase (SCA), total income, net input-output ratio. chlorophyll photosynthetic rate, dry matter accumulation, starch vitamin C crude protein content increased with increase amount. With plant nitrogen (N), phosphorus (P), potassium (K) absorption, WPI, income first then tended stabilize or even decline. On average, WPI 19.3% (6.9%), 1.6% (1.6%), 8.8% (10.4%), 3.8% (10.5%) 21.1% (7.8%), 34.6% (14.9%) higher than those (2022), respectively. In two years, average PFP SCA treatment 13.1%, 14.5%, 16.4% 4.8% treatment, Among all treatments, T5 (W2F2V3) had highest P SCA, alkaline phosphatase (SPA), sucrase (SSA) lowest reducing content. Plant accumulation N, K was closely related yield a significant positive correlation SSA. Based comprehensive differential combination evaluation model, considering growth development, efficiency benefits, best treatment. After evaluation, optimal ranges 270–290 mm 167 ha−1 193 ha−1, present study provides basis for evaluating selecting better management practices effective varieties

Language: Английский

Citations

40