Mitigating Water Stress in Plants with Beneficial Bacteria: Effects on Growth and Rhizosphere Bacterial Communities DOI Open Access
Daniele Nicotra, Alexandros Mosca, Giulio Dimaria

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(4), P. 1467 - 1467

Published: Feb. 10, 2025

Climate change has reshaped global weather patterns and intensified extreme events, with drought soil salinity negatively impacting the yield quality of crop production. To mitigate detrimental effects stress, introduction beneficial plant growth-promoting rhizobacteria (PGPR) proven to be a promising approach. In this study, we evaluated synthetic microbial community (SynCom) comprising bacterial strains belonging species Bacillus velezensis, Pseudomonas simiae, P. salmasensis, Glutamicibacter halophytocola, Leclercia sp., which have been demonstrated promote tomato growth both individually collectively. The SynCom most its individual were shown polyethylene glycol (PEG)-induced stress in vitro Arabidopsis thaliana seedlings, either by reducing alterations xylem elements or promoting formation new strands. greenhouse trial, drenching two strains, B. velezensis PSE31B salmasensis POE54, improved water response soilless-grown plants under 40% reduced irrigation regime. Additionally, treatments positively influenced diversity rhizosphere communities, distinct changes composition, suggest treatment-specific interplay between introduced native microbiome. These findings highlight potential consortia PGPR as sustainable tools improve resilience abiotic stresses.

Language: Английский

Bacterial Exopolysaccharides: Insight into Their Role in Plant Abiotic Stress Tolerance DOI Open Access
Neeta Bhagat,

Meenu Raghav,

Sonali Dubey

et al.

Journal of Microbiology and Biotechnology, Journal Year: 2021, Volume and Issue: 31(8), P. 1045 - 1059

Published: July 5, 2021

Language: Английский

Citations

129
Mechanisms and Strategies of Plant Microbiome Interactions to Mitigate Abiotic Stresses DOI Creative Commons
Neelma Munir, Maria Hanif, Zainul Abideen

et al.

Agronomy, Journal Year: 2022, Volume and Issue: 12(9), P. 2069 - 2069

Published: Aug. 30, 2022

Abiotic stresses are the most significant factors reducing agricultural productivity. Plants face extreme environmental conditions that may affect their biological mechanisms, thereby influencing growth and development. Microorganisms possess substantial metabolites aid in helping plants mitigate abiotic stresses. Plants’ interaction with microbes constitutes a diversified ecosystem, as sometimes both partners share mutualistic relationship. Endophytes, plant-growth-promoting rhizobacteria (PGPRs), arbuscular mycorrhizal fungi (AMFs) examples of microorganisms play an essential role alleviating and, hence, improving plant growth. The plant–microbe leads to modulation complex mechanisms cellular system. Moreover, residing microbial flora also inhibits phytopathogens, therefore, it becomes part plants’ innate defense Keeping view growing concerns, is important identify microbiome transportation nutrients maintain sustainable production. Furthermore, enabling recruit beneficial species how deal potential pathogens. Therefore, this review aims summarize impacts various stressors on productivity mitigating negative effects literature shows microbes, including PGPRs, AMFs, endophytes, adopt for ameliorating It has been observed biochar either individually or combination, can maintaining under stress conditions. Although conventional inoculation mitigates enhances productivity, advancement genetic engineering would help transfer specific genes from mitigation.

Language: Английский

Citations

100
The AP2/ERF transcription factor MdDREB2A regulates nitrogen utilisation and sucrose transport under drought stress DOI
Tingting Zhang, Yujing Lin,

Hao‐Feng Liu

et al.

Plant Cell & Environment, Journal Year: 2024, Volume and Issue: 47(5), P. 1668 - 1684

Published: Jan. 28, 2024

Abstract Drought stress is one of the main environmental factors limiting plant growth and development. Plants adapt to changing soil moisture by modifying root architecture, inducing stomatal closure, inhibiting shoot growth. The AP2/ERF transcription factor DREB2A plays a key role in maintaining response drought stress, but molecular mechanism underlying this process remains be elucidated. Here, it was found that overexpression MdDREB2A positively regulated nitrogen utilisation interacting with DRE cis ‐elements MdNIR1 promoter. Meanwhile, could also directly bind promoter MdSWEET12 , which may enhance development assimilation, ultimately promoting Overall, regulatory provides an idea for plants coordinating tolerance assimilation maintain optimal under stress.

Language: Английский

Citations

28
The AP2/ERF transcription factor MhERF113-like positively regulates drought tolerance in transgenic tomato and apple DOI

Jianwen Tian,

Penghao Yuan,

Xiang Gao

et al.

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: 221, P. 109598 - 109598

Published: Feb. 1, 2025

Language: Английский

Citations

2
Reducing Drought Stress in Plants by Encapsulating Plant Growth-Promoting Bacteria with Polysaccharides DOI Open Access
Roohallah Saberi Riseh, Marzieh Ebrahimi-Zarandi, Mozhgan Gholizadeh Vazvani

et al.

International Journal of Molecular Sciences, Journal Year: 2021, Volume and Issue: 22(23), P. 12979 - 12979

Published: Nov. 30, 2021

Drought is a major abiotic stress imposed by climate change that affects crop production and soil microbial functions. Plants respond to water deficits at the morphological, biochemical, physiological levels, invoke different adaptation mechanisms tolerate drought stress. Plant growth-promoting bacteria (PGPB) can help alleviate in plants through various strategies, including phytohormone production, solubilization of mineral nutrients, 1-aminocyclopropane-1-carboxylate deaminase osmolytes. However, PGPB populations functions are influenced adverse factors, such as drought. Therefore, maintaining viability stability applied arid soils requires have be protected suitable coatings. The encapsulation one newest most efficient techniques for protecting beneficial against unfavorable conditions. Coatings made from polysaccharides, sodium alginate, chitosan, starch, cellulose, their derivatives, absorb retain substantial amounts interstitial sites structures, thereby promoting bacterial survival better plant growth.

Language: Английский

Citations

83
Constraints and Prospects of Improving Cowpea Productivity to Ensure Food, Nutritional Security and Environmental Sustainability DOI Creative Commons
Olawale Israel Omomowo, Olubukola Oluranti Babalola

Frontiers in Plant Science, Journal Year: 2021, Volume and Issue: 12

Published: Oct. 22, 2021

Providing safe and secure food for an increasing number of people globally is challenging. Coping with such a human population by merely applying the conventional agricultural production system has not proved to be agro-ecologically friendly; nor it sustainable. Cowpea ( Vigna unguiculata (L) Walp) multi-purpose legume. It consists high-quality protein consumption, rich in livestock fodder. enriches soil that recycles nutrients through fixation nitrogen association nodulating bacteria. However, productivity this multi-functional, indigenous legume great value African smallholder farmers rural populace, also urban consumers entrepreneurs, limited. Because cowpea strategic importance Africa, there need improve on its productivity. Such endeavors Africa are wrought challenges include drought, salinity, excessive demand among synthetic chemicals, repercussions climate change, declining nutrients, microbial infestations, pest issues, so forth. Nevertheless, giant strides have already been made improvements adopting sustainable smart biotechnological approaches favorably influencing costs availability. As such, prospects leap enhancement genetic gain good. Potential viable means overcoming some above-mentioned constraints would focus key producer nations encourage them embrace techniques integrated approach enhance This review highlights spectrum limit yield, but looks ahead seeks way forward Africa. More importantly, investigates applications insights concerning mechanisms action implementing eco-friendly techniques, as deployment bio inoculants, climate-smart (CSA) practices, conservation multi-omics technology spheres genomics, transcriptomics, proteomics, metabolomics, improving yields achieve agro-ecosystems, ensuring their stability.

Language: Английский

Citations

75
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

68
The role of arbuscular mycorrhizal symbiosis in improving plant water status under drought DOI Open Access
Mohanned Abdalla, Michael Bitterlich, Jan Jansa

et al.

Journal of Experimental Botany, Journal Year: 2023, Volume and Issue: 74(16), P. 4808 - 4824

Published: July 6, 2023

Arbuscular mycorrhizal fungi (AMF) have been presumed to ameliorate crop tolerance drought. Here, we review the role of AMF in maintaining water supply plants from drying soils and underlying biophysical mechanisms. We used a soil-plant hydraulic model illustrate impact several mechanisms on plant responses edaphic The enhance soil's capability transport extend effective root length, thereby attenuating drop matric potential at surface during soil drying. synthesized evidence corresponding simulations demonstrate that symbiosis with postpones stress onset limit, which is defined as disproportionality between transpiration rates leaf potentials, can thus help crops survive extended intervals limited availability. also provide our perspective future research needs call for reconciling dynamic changes hydraulics order better understand relations face climate changes.

Language: Английский

Citations

35
Isolation and Characterization of Plant-Growth-Promoting, Drought-Tolerant Rhizobacteria for Improved Maize Productivity DOI Creative Commons
Victor Funso Agunbiade, Ayomide Emmanuel Fadiji, Nadège Adoukè Agbodjato

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(10), P. 1298 - 1298

Published: May 8, 2024

Drought is one of the main abiotic factors affecting global agricultural productivity. However, application bioinocula containing plant-growth-promoting rhizobacteria (PGPR) has been seen as a potential environmentally friendly technology for increasing plants' resistance to water stress. In this study, strains were isolated from maize (

Language: Английский

Citations

13
Is Endophytic Colonization of Host Plants a Method of Alleviating Drought Stress? Conceptualizing the Hidden World of Endophytes DOI Open Access
Roopashree Byregowda,

Siddegowda Rajendra Prasad,

Ralf Oelmüller

et al.

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(16), P. 9194 - 9194

Published: Aug. 16, 2022

In the wake of changing climatic conditions, plants are frequently exposed to a wide range biotic and abiotic stresses at various stages their development, all which negatively affect growth, productivity. Drought is one most devastating for cultivated crops, particularly in arid semiarid environments. Conventional breeding biotechnological approaches used generate drought-tolerant crop plants. However, these techniques costly time-consuming. Plant-colonizing microbes, notably, endophytic fungi, have received increasing attention recent years since they can boost plant growth yield strengthen responses stress. this review, we describe microorganisms relationship with host plants, summarize current knowledge on how “reprogram” promote productivity, drought tolerance, explain why promising agents modern agriculture.

Language: Английский

Citations

33