Biofumigation based integrated disease management against Athelia rolfsii (syn. Sclerotium rolfsii Sacc.) induced collar rot disease of betelvine (Piper betle L.)

Garain, Prabir Kumar; Mondal, Bholanath; Dutta, Subrata

doi:10.1007/s42161-022-01129-8

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…Sev eral plants belonging to the fam ily Brassicaceae such as cabbage, broccoli, kale, turnip, radish, cauliflower, rapeseed and mustards are effectively used to control soilborne pathogens and pests due to the presence of sulfur containing compound glucosinolate which is released upon hydrolysis of biologically active volatile products such as isothiocyanates (ITC). This isothiocyanates (ITC) was found toxic to many soilborne plant pathogenic organisms such as P. nicotianae, S. rolfsii, S. sclerotiorum and R. solani (Panth et al 2020;Garain et al 2021aGarain et al , 2022. Certain crops, like the Brassicas (Fam ily: Brassicaceae) contain high quantities of glucosinolates (GSL) and Myrosinase enzyme (thioglucoside glucohydrolase) that are compartmentalized within different cells in their intact tissue.…”

Section: Bio Fumigationmentioning

confidence: 99%

Biointensive approaches : an eco-dynamic strategy for sustainable management of soil borne plant pathogens

Dutta¹

2022

JMycR

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Biointensive approaches : an eco-dynamic strategy for sustainable management of soil borne plant pathogensThe pathogens which survive within the soil or in the crop residues on the soil surface are called soilborne plant pathogens. The soilborne plant pathogens are considered as hidden or silent killers because mainly the cases infection initiates below the ground and it becomes very late to initiate any crop protection measures when visible symptoms or signs develop on the above ground plant parts. W ith the growing demand for higher crop production and consequent trend of accelerating cropping intensity under chemical input based intensive agricultural system, infestation of the soilborne plant pathogens are aggravating and will continue to rise in future, if effective, sustainable and ecodynamic disease management strategies are not rightly taken up. Low inherent level of resistance of crop cultivars against such diseases, existence of high level genetic variability and wide host range of the pathogens, their ability to survive in soil for a long time, imbalanced application of plant nutrients make the disease management strategies more complicated. This review paper highlights the importance of soilborne pathogens, their biology, epidemiology and recent approaches of bio-intensive disease management strategies to mitigate the biotic stresses in crop plants caused by soilborne plant pathogens with special reference to Sclerotium rolfsii, Rhizoctonia solani and Sclerotinia sclerotiorum.

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Section: Bio Fumigationmentioning

confidence: 99%

Biointensive approaches : an eco-dynamic strategy for sustainable management of soil borne plant pathogens

Dutta¹

2022

JMycR

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Biological Control Efficacy of Indigenous Antagonistic Bacteria Isolated from the Rhizosphere of Cabbage Grown in Biofumigated Soil against Pythium aphanidermatum Damping-Off of Cucumber

et al. 2023

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Soil biofumigation is a widely used farming practice for soil-borne disease management in vegetable crops. Soil biofumigation is the practice of the incorporation of fresh plant materials from the members of the Brassicaceae family into the soil which release antimicrobial volatile organic compounds (VOCs), namely glucosinolates and their hydrolysis products. However, the VOCs may affect non-target beneficial soil biota including microbial biocontrol agents (MBAs) due to their broad-spectrum toxicity. In this study, native antagonistic rhizobacteria were isolated from cabbage plants grown in biofumigated fields and their potential in the management of Pythium aphanidermatum cucumber damping-off was evaluated with and also without biofumigation using cabbage leaf residue. A total of 20 morphologically distinct, culturable bacterial strains were recovered from the rhizosphere soil of cabbage cultivated in a biofumigated field, with the largest fraction of the isolates belonging to the genus Bacillus. The other bacterial genera isolated were Pseudomonas, Serratia, Stenotrophomonas, Microbacterium and Priestia. Of the 20 bacterial isolates, Pseudomonas aeruginosa B1-SQU, Pseudomonas indica B2-SQU, Serratia marcescens B3-SQU and Pseudomonas brenneri B4-SQU exhibited inhibitory activity against P. aphanidermatum in a co-culture assay. The deformation and shrinkage of P. aphanidermatum hyphae due to diffusible antimicrobial compounds from these bacterial strains were witnessed through scanning electron microscopy. A biofilm was formed by these bacterial strains in vitro and they exhibited compatibility with each other; however, they had no significant plant growth promotion effect on cucumber. These bacterial strains significantly reduced damping-off in cucumber under greenhouse conditions when applied to soil singly, but failed to show a significant effect when combined with biofumigation treatment, though the bacterial population in the soil was maintained at higher levels. Soil biofumigation alone was also not effective in suppressing the damping-off of cucumber. Gas chromatography–mass spectrometry analysis revealed that 1-butanol, n-butyl butyrate and butyl acetate were the predominant VOCs in the soil amended with cabbage leaf residue. The results suggest that soil biofumigation with cabbage leaf residue has no significant effect on P. aphanidermatum under high inoculum levels; furthermore, it affects the efficiency of the bacterial antagonists in controlling damping-off in cucumber.

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Biofumigation based integrated disease management against Athelia rolfsii (syn. Sclerotium rolfsii Sacc.) induced collar rot disease of betelvine (Piper betle L.)

Cited by 2 publications

References 22 publications

Biointensive approaches : an eco-dynamic strategy for sustainable management of soil borne plant pathogens

Biointensive approaches : an eco-dynamic strategy for sustainable management of soil borne plant pathogens

Biological Control Efficacy of Indigenous Antagonistic Bacteria Isolated from the Rhizosphere of Cabbage Grown in Biofumigated Soil against Pythium aphanidermatum Damping-Off of Cucumber

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