Plant Growth-Promoting Rhizobacteria in Management of Soil-Borne Fungal Pathogens

Gogoi, Parishmita; Kakoti, Priyanka; Saikia, Juthika; Sarma, Rupak K.; Yadav, Archana; Saikia, Ratul

doi:10.1007/978-3-030-35947-8_1

Cited by 4 publications

(2 citation statements)

References 57 publications

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“…In contrast, SAR is stimulated by necrotic pathogenic bacteria, especially when the pathogen motivates over sensitive reaction and limited in a native brown necrotic scratch or dry tissue (Compant et al, 2005). PGPR destroy life cycle of soil borne pathogen as they have the ability to stimulate ISR through metabolic pathways including jasmonic acid (JA) or ethylene (Beneduzi et al, 2012;Gogoi et al, 2020). Furthermore, defense responses in ISR depend on JA and ethylene signaling inside the plant which protects plant against different phytopathogens, while salicylic acid plays a vital role in SAR.…”

Section: Induced Systemic Resistance (Isr)mentioning

confidence: 99%

Role of Plant Growth Promoting Rhizobacteria in Healthy and Sustainable Agriculture

et al. 2023

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Egyptian Journal of Botany http://ejbo.journals.ekb.eg/ 22 Review C ONVENTIONAL agriculture plays a vital role in meeting the increasing demands for food which result from the continuous rising of the human population. Nowadays farmers use more and more amounts of chemical fertilizers and pesticides which have a bad influence on soil quality, the ecosystem, and the health of humans. Hence, it is important to explore other approaches to decrease the application of chemical fertilizers and enhance crop productivity. Inoculation of the crop with plant growth promoting rhizobacteria (PGPR) to augment sustainable agriculture production is another strategy that is eco-friendly and could be carried out in the long run. PGPR is a group of bacteria able to colonize the root of plants and increase their growth and yield. They help in increasing water absorption, suppress pathogens, and also enhance the uptake of nutrients from soil. Biochemical applications by which rhizobacteria can stimulate the growth of plants were discussed in this article; (i) bio-stimulants: represented by particular phytohormones synthesized by PGPR for e.g. auxins or indole acetic acid (IAA), cytokinins, gibberellic acid (GA) and ethylene, (ii) biofertilization: through helping the uptake of many nutrients from the environment e.g. biological nitrogen fixation, phosphate solubilization and production of siderophore, (iii) bioprotectants or biocontrol: by preventing plant diseases through antibiotic, lytic enzymes and/or hydrogen cyanide (HCN) production.

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Section: Induced Systemic Resistance (Isr)mentioning

confidence: 99%

Role of Plant Growth Promoting Rhizobacteria in Healthy and Sustainable Agriculture

et al. 2023

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“…This defense mechanism does not target specific pathogens, making it particularly interesting for controlling diseases caused by various agents. Bacterial molecules like the O-antigenic side chain of bacterial LPS, flagellar proteins, pyoverdine, chitin, β-glucans, cyclic lipopeptide surfactants, and salicylic acid have been described as signals for inducing this type of systemic resistance [66]. It is relevant to highlight that categorizing PGPM into groups based on their mechanisms of action is a methodological exercise to meet regulatory requirements for registration in Brazil.…”

Section: Indirect Mechanisms For Promoting Plant Growthmentioning

confidence: 99%

Applications and Market of Micro-Organism-Based and Plant-Based Inputs in Brazilian Agriculture

Soares,

Hernández,

da Silva

et al. 2023

Plants

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The use of plant-based and micro-organism-based biological inputs is a sustainable agricultural practice. It promotes a suitable and better utilization of non-renewable resources in the environment. The benefits of using micro-organisms are associated with direct and indirect mechanisms, mainly related to improvements in the absorption and availability of nutrients, resulting in a consequent impact on plant growth. The main benefits of using biochemical pesticides are the promotion of sustainability and the management of resistance to pests and diseases. Although the use of micro-organisms and botanical metabolites is a promising agricultural alternative, they are still primarily concentrated in grain crops. There is a huge opportunity to expand the plant-based and micro-organism-based biological inputs used in agriculture due to the wide range of mechanisms of action of those products. At a global level, several terminologies have been adopted to characterize biological inputs, but many terms used conflict with Brazilian legislation. This review will clarify the classes of biological inputs existing in Brazil as well as present the application and evolution of the market for microbiological and plant-based inputs.

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Role of biochar, compost and plant growth promoting rhizobacteria in the management of tomato early blight disease

Rasool

Akhter

Soja

et al. 2021

Sci Rep

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The individual role of biochar, compost and PGPR has been widely studied in increasing the productivity of plants by inducing resistance against phyto-pathogens. However, the knowledge on combined effect of biochar and PGPR on plant health and management of foliar pathogens is still at juvenile stage. The effect of green waste biochar (GWB) and wood biochar (WB), together with compost (Comp) and plant growth promoting rhizobacteria (PGPR; Bacillus subtilis) was examined on tomato (Solanum lycopersicum L.) physiology and Alternaria solani development both in vivo and in vitro. Tomato plants were raised in potting mixture modified with only compost (Comp) at application rate of 20% (v/v), and along with WB and GWB at application rate of 3 and 6% (v/v), each separately, in combination with or without B. subtilis. In comparison with WB amended soil substrate, percentage disease index was significantly reduced in GWB amended treatments (Comp + 6%GWB and Comp + 3%GWB; 48.21 and 35.6%, respectively). Whereas, in the presence of B. subtilis disease suppression was also maximum (up to 80%) in the substrate containing GWB. Tomato plant growth and physiological parameters were significantly higher in treatment containing GWB (6%) alone as well as in combination with PGPR. Alternaria solani mycelial growth inhibition was less than 50% in comp, WB and GWB amended growth media, whereas B. subtilis induced maximum inhibition (55.75%). Conclusively, the variable impact of WB, GWB and subsequently their concentrations in the soil substrate was evident on early blight development and plant physiology. To our knowledge, this is the first report implying biochar in synergism with PGPR to hinder the early blight development in tomatoes.

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Plant Growth-Promoting Rhizobacteria in Management of Soil-Borne Fungal Pathogens

Cited by 4 publications

References 57 publications

Role of Plant Growth Promoting Rhizobacteria in Healthy and Sustainable Agriculture

Role of Plant Growth Promoting Rhizobacteria in Healthy and Sustainable Agriculture

Applications and Market of Micro-Organism-Based and Plant-Based Inputs in Brazilian Agriculture

Role of biochar, compost and plant growth promoting rhizobacteria in the management of tomato early blight disease

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