Bacterial Inoculants for Control of Fungal Diseases in Solanum lycopersicum L. (Tomatoes): A Comprehensive Overview

Shahid, Mohammad; Singh, Udai B.; Ilyas, Talat; Malviya, Deepti; Vishwakarma, Shailesh K.; Shafi, Zaryab; Yadav, Babita; Singh, Harsh Vardhan

doi:10.1007/978-981-19-5872-4_15

Cited by 10 publications

(2 citation statements)

References 120 publications

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“…enable them to serve as plant growth promoters and biocontrol agents. These traits include aggressive rhizosphere competence, quick colonization, formation of several root exudates, bioactive substances (such as vitamins, VOCs, siderophores, and antibiotics), and stress responses 70 ( Figure 1 ). In case of P. fluorescens , genes of the tryptophan synthase-α chain (trpA) and tryptophan synthase-β chain (trpB) generate indole as an intermediate product, which via the expression of tryptophan 2-monooxygenase (iaaM) catalyzes indole-3-acetamide to IAA using iaaH, 71 increasing plant growth.…”

Section: Pseudomonas Spp: An Extremely Diverse Groupmentioning

confidence: 99%

Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement

Mehmood,

Saeed,

Zafarullah

et al. 2023

ACS Omega

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The modern agricultural system has issues with the reduction of agricultural productivity due to a wide range of abiotic and biotic stresses. It is also expected that in the future the entire world population may rapidly increase and will surely demand more food. Farmers now utilize a massive quantity of synthetic fertilizers and pesticides for disease management and to increase food production. These synthetic fertilizers badly affect the environment, the texture of the soil, plant productivity, and human health. However, agricultural safety and sustainability depend on an ecofriendly and inexpensive biological application. In contrast to synthetic fertilizers, soil inoculation with plant-growth-promoting rhizobacteria (PGPR) is one of the excellent alternative options. In this regard, we focused on the best PGPR genera, Pseudomonas, which exists in the rhizosphere as well as inside the plant’s body and plays a role in sustainable agriculture. Many Pseudomonas spp. control plant pathogens and play an effective role in disease management through direct and indirect mechanisms. Pseudomonas spp. fix the amount of atmospheric nitrogen, solubilize phosphorus and potassium, and also produce phytohormones, lytic enzymes, volatile organic compounds, antibiotics, and secondary metabolites during stress conditions. These compounds stimulate plant growth by inducing systemic resistance and by inhibiting the growth of pathogens. Furthermore, pseudomonads also protect plants during different stress conditions like heavy metal pollution, osmosis, temperature, oxidative stress, etc. Now, several Pseudomonas-based commercial biological control products have been promoted and marketed, but there are a few limitations that hinder the development of this technology for extensive usage in agricultural systems. The variability among the members of Pseudomonas spp. draws attention to the huge research interest in this genus. There is a need to explore the potential of native Pseudomonas spp. as biocontrol agents and to use them in biopesticide development to support sustainable agriculture.

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Section: Pseudomonas Spp: An Extremely Diverse Groupmentioning

confidence: 99%

Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement

Mehmood,

Saeed,

Zafarullah

et al. 2023

ACS Omega

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“…Salinity causes overproduction of ethylene which increases abscission of leaves and petals, and accelerates organ senescence that ultimately leads to premature death of the plant ( Zahir et al, 2009 ; Singh S. et al, 2021 ). ACCD-containing PGPR have been used to resolve salinity stress in several crops including vegetables and legumes ( Shahid et al, 2021a , 2022a , b , c ). These PGPR transform ACC to NH 3 and α-ketobutyrate, which the plant uses as a source of nitrogen, while also mitigating the deleterious effects of salt stress ( Siddikee et al, 2012 ; Barnawal et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Bacterial ACC deaminase: Insights into enzymology, biochemistry, genetics, and potential role in amelioration of environmental stress in crop plants

et al. 2023

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Growth and productivity of crop plants worldwide are often adversely affected by anthropogenic and natural stresses. Both biotic and abiotic stresses may impact future food security and sustainability; global climate change will only exacerbate the threat. Nearly all stresses induce ethylene production in plants, which is detrimental to their growth and survival when present at higher concentrations. Consequently, management of ethylene production in plants is becoming an attractive option for countering the stress hormone and its effect on crop yield and productivity. In plants, ACC (1-aminocyclopropane-1-carboxylate) serves as a precursor for ethylene production. Soil microorganisms and root-associated plant growth promoting rhizobacteria (PGPR) that possess ACC deaminase activity regulate growth and development of plants under harsh environmental conditions by limiting ethylene levels in plants; this enzyme is, therefore, often designated as a “stress modulator.” TheACC deaminase enzyme, encoded by the AcdS gene, is tightly controlled and regulated depending upon environmental conditions. Gene regulatory components of AcdS are made up of the LRP protein-coding regulatory gene and other regulatory components that are activated via distinct mechanisms under aerobic and anaerobic conditions. ACC deaminase-positive PGPR strains can intensively promote growth and development of crops being cultivated under abiotic stresses including salt stress, water deficit, waterlogging, temperature extremes, and presence of heavy metals, pesticides and other organic contaminants. Strategies for combating environmental stresses in plants, and improving growth by introducing the acdS gene into crop plants via bacteria, have been investigated. In the recent past, some rapid methods and cutting-edge technologies based on molecular biotechnology and omics approaches involving proteomics, transcriptomics, metagenomics, and next generation sequencing (NGS) have been proposed to reveal the variety and potential of ACC deaminase-producing PGPR that thrive under external stresses. Multiple stress-tolerant ACC deaminase-producing PGPR strains have demonstrated great promise in providing plant resistance/tolerance to various stressors and, therefore, it could be advantageous over other soil/plant microbiome that can flourish under stressed environments.

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Microbial Biofertilizers: An Environmentally-friendly Approach to Sustainable Agriculture

Ahamad

Shahid

Danish

2023

Microbiomes for the Management of Agricultural Sustainability

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Bacterial Inoculants for Control of Fungal Diseases in Solanum lycopersicum L. (Tomatoes): A Comprehensive Overview

Cited by 10 publications

References 120 publications

Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement

Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement

Bacterial ACC deaminase: Insights into enzymology, biochemistry, genetics, and potential role in amelioration of environmental stress in crop plants

Microbial Biofertilizers: An Environmentally-friendly Approach to Sustainable Agriculture

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