Phenazine 1-carboxylic acid Producing Seed Harbored Endophytic Bacteria from Cultivated Rice Variety of Kerala and Its Broad Range Antagonism to Diverse Plant Pathogens

Radhakrishnan, Nayana Aluparambil; Aswani, R.; Joseph, Bicky Jerin; Jose, Ashitha; Jithesh, O.; Radhakrishnan, E. K.

doi:10.1007/s12602-021-09844-x

Cited by 9 publications

(3 citation statements)

References 37 publications

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“…Among them S3 strain (Bacillus polymyxis) showed good antibacterial activity against Fusarium oxysporum, Pythium aphanidermatum, Phytophthora infestans, and other pathogens (Radhakrishnan et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Isolation and identification of an endophytic bacteria Bacillus sp. K-9 exhibiting biocontrol activity against potato common scab

Wang

Teng

et al. 2022

Arch Microbiol

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Potato scab is an important soil-borne disease that can signi cantly reduce the quality and economic value of potatoes. The purpose of this study was to isolate, screen and identify endophytic bacteria that have antagonistic and control effects on potato scab disease, and to determine the control effect and yield traits of the selected strains on potato scab disease in eld conditions. A bacterial strain K-9 was isolated from the junction between scab spot and healthy epidermis of potato tuber. The K-9 strain was identi ed as a new species of Bacillus sp. through morphological, physiological and biochemical characterization, and 16S rDNA and gyrB gene sequence analysis. The diameter of the inhibition zone of strain K-9 against Streptomyces scabies on the YME plate was 3.82 cm. The K-9 strain could inhibit eight types of crop pathogens, with the highest inhibition rate (70.39%) against another soil-borne potato disease potato black scurf . In the eld test, the control effect of K-9 strain against potato scab was not signi cantly different from that of mixed bacteria or chemical agents, but the disease index and the scab index in the K-9 treatment were signi cantly lower than in the control. The potato yield in the K-9 treatment was 12.44% higher than the control. In summary, the K-9 strain can prevent not only potato scab, but also increase potato yield.Therefore, the endophytic bacterial K-9 strain may be a potential biological control agent.

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Section: Discussionmentioning

confidence: 99%

Isolation and identification of an endophytic bacteria Bacillus sp. K-9 exhibiting biocontrol activity against potato common scab

Wang

Teng

et al. 2022

Arch Microbiol

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“…Radhakrishnan et al 71 . isolated the Paenibacillus polymyxa strain S3 that has biocontrol activity against different plant pathogens such as Phytophthora infestans , and confirmed it can produce antimicrobial compounds such as HCN and PCA.…”

Section: Bacteria As Biocontrol Agents and Their Modes Of Actionmentioning

confidence: 99%

“…Radhakrishnan et al 71 isolated the Paenibacillus polymyxa strain S3 that has biocontrol activity against different plant pathogens such as Phytophthora infestans, and confirmed it can produce antimicrobial compounds such as HCN and PCA. Bruisson et al 72 screened for antagonistic activity of bacterial isolates from grapevine leaves against plant pathogens and found that six Bacillus strains (Bacillus altitudinis PID5, Bacillus licheniformis SOD5, Bacillus subtilis CHD4 and CHP14, Bacillus pumilus SOP51 and Bacillus stratosphericus SOD20) can strongly inhibit the mycelial growth of Phytophthora infestans.…”

Section: Pseudomonas Sppmentioning

confidence: 99%

A review of biocontrol agents in controlling late blight of potatoes and tomatoes caused by Phytophthora infestans and the underlying mechanisms

Wang

Long

2023

Pest Management Science

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Phytophthora infestans causes light blight on potatoes and tomatoes, which has a significant economic impact on agriculture. The management of late blight has been largely dependent on the application of synthetic fungicides, which is not ultimate solution for sustainable agriculture and environmental safety. Biocontrol strategies are expected to be alternative methods to the conventional chemicals in controlling plant diseases in the integrated pest management (IPM) programs. Well‐studied biocontrol agents against P. infestans include fungi, oomycetes, bacteria, and compounds produced by these antagonists, in addition to certain bioactive metabolites produced by plants. Laboratory and greenhouse experiments suggest a potential for using biocontrol in practical late blight disease management. However, the transition of biocontrol to field applications is problematic for the moment, due to low and variable efficacies. In this review, we provide a comprehensive summary on these biocontrol strategies and the underlying corresponding mechanisms. To give a more intuitive understanding of the promising biocontrol agents against P. infestans in agricultural systems, we discuss the utilizations, modes of action and future potentials of these antagonists based on their taxonomic classifications. To achieve a goal of best possible results produced by biocontrol agents, it is suggested to work on field trials, strain modifications, formulations, regulations, and optimizations of application. Combined biocontrol agents having different modes of action or biological adaptation traits may be used to strengthen the biocontrol efficacy. More importantly, biological control agents should be applied in the coordination of other existing and forthcoming methods in the IPM programs.This article is protected by copyright. All rights reserved.

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Multifarious Plant Probiotic Features of Bacillus sp. W11 Isolated from Vermicast and Its Promises for Biocontrol Activity Against Phytopathogens

Joseph

Aswani

Geevarghese

et al. 2023

Appl Biochem Biotechnol

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Phenazine 1-carboxylic acid Producing Seed Harbored Endophytic Bacteria from Cultivated Rice Variety of Kerala and Its Broad Range Antagonism to Diverse Plant Pathogens

Cited by 9 publications

References 37 publications

Isolation and identification of an endophytic bacteria Bacillus sp. K-9 exhibiting biocontrol activity against potato common scab

Isolation and identification of an endophytic bacteria Bacillus sp. K-9 exhibiting biocontrol activity against potato common scab

A review of biocontrol agents in controlling late blight of potatoes and tomatoes caused by Phytophthora infestans and the underlying mechanisms

Multifarious Plant Probiotic Features of Bacillus sp. W11 Isolated from Vermicast and Its Promises for Biocontrol Activity Against Phytopathogens

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