Rhizobacteria–Plant Interaction, Alleviation of Abiotic Stresses

Singh, R. V.; Masurkar, Prahlad; Pandey, Sumit Kumar; Kumar, Suman

doi:10.1007/978-981-13-6536-2_16

Cited by 5 publications

(5 citation statements)

References 42 publications

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“…Regarding exposure to unfavorable temperatures, inoculation with psychrotolerant Pseudomonas spp. increased cold tolerance of canola, lentil, mung bean, wheat, and tomato (Nadeem et al, 2016;Yadav et al, 2019), while thermotolerant strains improved tolerance to elevated temperatures in wheat, sorghum, chickpea, and potato (Nadeem et al, 2016;Singh et al, 2019). Reported mechanisms included the production of antifreeze proteins and biofilms, protection of membrane integrity, modulation of phytohormones and antioxidants, improved nutrient acquisition, and increased plant metabolite levels (Nadeem et al, 2016;Yadav et al, 2019).…”

Section: Salinity Water and Temperature Stressesmentioning

confidence: 99%

Exploiting Beneficial Pseudomonas spp. for Cannabis Production

2022

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Among the oldest domesticated crops, cannabis plants (Cannabis sativa L., marijuana and hemp) have been used to produce food, fiber, and drugs for thousands of years. With the ongoing legalization of cannabis in several jurisdictions worldwide, a new high-value market is emerging for the supply of marijuana and hemp products. This creates unprecedented challenges to achieve better yields and environmental sustainability, while lowering production costs. In this review, we discuss the opportunities and challenges pertaining to the use of beneficial Pseudomonas spp. bacteria as crop inoculants to improve productivity. The prevalence and diversity of naturally occurring Pseudomonas strains within the cannabis microbiome is overviewed, followed by their potential mechanisms involved in plant growth promotion and tolerance to abiotic and biotic stresses. Emphasis is placed on specific aspects relevant for hemp and marijuana crops in various production systems. Finally, factors likely to influence inoculant efficacy are provided, along with strategies to identify promising strains, overcome commercialization bottlenecks, and design adapted formulations. This work aims at supporting the development of the cannabis industry in a sustainable way, by exploiting the many beneficial attributes of Pseudomonas spp.

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Section: Salinity Water and Temperature Stressesmentioning

confidence: 99%

Exploiting Beneficial Pseudomonas spp. for Cannabis Production

2022

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“…Two groups of root exudates have been observed: (1) low molecular weight (including sugars, amino acids, phenols, and organic acids) and (2) high molecular weight (including proteins and complex carbohydrates) [41]. Studies have shown that the composition of root exudates depends on the genotype [42] and the growth stage of the plant [43], as well as on the physicochemical nature of the soil and the microorganisms living in the environment [44]. Metabolites secreted by plant roots have four main functions:…”

Section: Root Exudatesmentioning

confidence: 99%

“…They can also affect phytohormone production through the secretion of various enzymes, e.g., 1-aminocyclopropane-1-carboxylate deaminase (ACC) can reduce ethylene levels in plants [67]. Additionally, many rhizobacteria are capable of tolerating stress conditions (e.g., salt, drought) and help plants to survive in extreme soil conditions [44,68]. Additionally, studies have shown that Bacillus aryabhattai have the potential to withstand high biotic and abiotic stresses, implying their importance to be included in biofertilizers and as soil remediation agents [73,74].…”

Section: Rhizobacteriamentioning

confidence: 99%

Soil–Plant–Microbe Interactions Determine Soil Biological Fertility by Altering Rhizospheric Nutrient Cycling and Biocrust Formation

Bhattacharyya

Furtak

2022

Sustainability

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Understanding soil–plant–microbe inter- and intra- interactions are essential for ensuring proper soil health, quality, and soil-mediated ecosystem services (e.g., nutrient cycling) required for human–plant–animal life. Intensive and unsustainable farming practices can decrease soil microbial biodiversity, fertility, and quality leading to soil degradation, impaired nutrient cycling, and the incapability of soil to support plant growth. Under such a context, soil biological fertility can appear as a regenerative component that has the potential to harmonize and improve soil’s physical, chemical, and biological parameters. This study defines and discusses the microbiome in the rhizosphere, microbial nutrient cycling, and biological soil crusts as the major components of soil biological fertility, and explores the answers to the following questions: (i) how does the rhizosphere promote plant growth, development, and nutrient cycling through soil microorganisms (e.g., bacteria, fungi)? (ii) How can soil microorganisms regulate macronutrient cycling and facilitate biocrust formation? This review reveals that soil biological fertility is crucial for increasing crop resilience and productivity as well as sustainability in agriculture. Additionally, the reintroduction of plant growth promoting rhizobacteria, a quantitative estimation of the root exudate’s composition, identifying the spatiotemporal dynamics of potassium solubilizing bacteria and establishing biological soil crusts in agricultural lands remain the major tasks for improving soil biological fertility and the transition towards regenerative agriculture.

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“…Sustainable agriculture is supported by new technical developments and management, highlining the need for more attention on environmental protection [8]. The main objective is to fulfill food human requirements, reducing the negative burden on the environment and its resources through management of soil fertility and its physical-chemical properties, using a regenerative approach, while improving or maintaining economic viability [10,11]. Therefore, for an efficient implementation of a sustainable food system and the establishment of specific targets, evaluation parameters, and proper assessment tools are necessary to sustain further policy changes, and support the transition to sustainable practices.…”

Section: Sustainability Conceptmentioning

confidence: 99%

“…They generate soil spatial heterogeneity as alterations in its profile through movement [4]. As a resume, Figure 2 represents the integration of the interactions between PGPB, soil characteristics; plants/tree mechanisms and biodiversity, to plant sustainability [11,24,55]. Most of the PGPB are found in the plant rhizosphere, which is a constricted zone of soil contiguous to the plant root system.…”

Section: Plant Growth Promoting Bacteria (Pgpb)mentioning

confidence: 99%

Sustainable Agricultural Systems for Fruit Orchards: The Influence of Plant Growth Promoting Bacteria on the Soil Biodiversity and Nutrient Management

Freitas¹

2022

Sustainability

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Awareness towards the loss of soil quality as well as consumer perception about the environmental impact of agricultural activity have stimulated research and government activity toward the implementation of a sustainable agricultural system. The European Commission, in the next funding program, established specific objectives to promote the conversion towards a more environmentally sustainable agricultural system through its Green Deal Strategy. The demand for ecologically and sustainably cultivated fruits increases every year; however, suppressing such demand is necessary to improve the production performance of orchards. The sustainable management of orchard production requires combined knowledge from different fields. The key challenge is to design orchard systems that can integrate sustainable practices, nutrient cycle knowledge and promotion of soil biodiversity. Therefore, this review compiles works that address the challenges in the implementation of a sustainable agriculture system based on Plant Growth-Promoting Bacteria (PGPB) and their impact on soil biodiversity as well as that of nutrient management on the development of fruit orchards.

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Rhizobacteria–Plant Interaction, Alleviation of Abiotic Stresses

Cited by 5 publications

References 42 publications

Exploiting Beneficial Pseudomonas spp. for Cannabis Production

Exploiting Beneficial Pseudomonas spp. for Cannabis Production

Soil–Plant–Microbe Interactions Determine Soil Biological Fertility by Altering Rhizospheric Nutrient Cycling and Biocrust Formation

Sustainable Agricultural Systems for Fruit Orchards: The Influence of Plant Growth Promoting Bacteria on the Soil Biodiversity and Nutrient Management

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