Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests

Abstract Background Several chemical bactericides were applied for controlling soft rot bacteria, Pectobacterium carotovorum subsp. carotovorum, which causes the destructive soft rot disease to many economically important vegetables, but because of their toxic hazards on human and environment became...

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Main Authors: Hassan Abd-El-Khair, Tarek G. Abdel-Gaied, Maurice S. Mikhail, Ahmed I. Abdel-Alim, Hamdy I. Seif El-Nasr
Format: Article
Language:English
Published: SpringerOpen 2021-02-01
Series:Bulletin of the National Research Centre
Subjects:
Online Access:https://doi.org/10.1186/s42269-021-00491-4
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author Hassan Abd-El-Khair
Tarek G. Abdel-Gaied
Maurice S. Mikhail
Ahmed I. Abdel-Alim
Hamdy I. Seif El-Nasr
author_facet Hassan Abd-El-Khair
Tarek G. Abdel-Gaied
Maurice S. Mikhail
Ahmed I. Abdel-Alim
Hamdy I. Seif El-Nasr
author_sort Hassan Abd-El-Khair
collection DOAJ
description Abstract Background Several chemical bactericides were applied for controlling soft rot bacteria, Pectobacterium carotovorum subsp. carotovorum, which causes the destructive soft rot disease to many economically important vegetables, but because of their toxic hazards on human and environment became limit. The biocontrol was applied to control many plant pathogens. Therefore, this work is aimed to study the antagonistic activity of bacterial agents, i.e. Bacillus subtilis, Bacillus pumilus, Bacillus megaterium and Pseudomonas fluorescens, and fugal agents, i.e. Trichoderma harzianum, Trichoderma viride and Trichoderma virens, to control bacterial soft rot disease under in vitro and in vivo tests. Results The tested treatments could protect the potato tubers against the development of soft rot. T. viride and T. virens were highly effective in reducing soft rot symptoms on inoculated potato tuber slices, when applied at the same time or 2 h before pathogen inoculation, while B. megaterium and T. harzianum were highly effective when applied at the same time or 2 h after pathogen inoculation. In whole potato tubers technique, B.pumilus highly protected the stored potato tuber under artificially infection conditions, than P. fluorescens, T. harzianum, B. subtilis, T. viride, T. virens and B. megaterium, respectively. Conclusion Application of fungal agents or specify the bacterial species can play an important role in controlling bacterial soft rot disease in vegetables and increase the stored periods of potato tubers under storage conditions without any toxic effects.
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spelling doaj.art-51324f8f2c854b7eb57f18e3c1585d5f2022-12-21T22:46:24ZengSpringerOpenBulletin of the National Research Centre2522-83072021-02-014511910.1186/s42269-021-00491-4Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo testsHassan Abd-El-Khair0Tarek G. Abdel-Gaied1Maurice S. Mikhail2Ahmed I. Abdel-Alim3Hamdy I. Seif El-Nasr4Plant Pathology Department, National Research CentrePlant Pathology Department, National Research CentrePlant Pathology Department, Faculty of Agriculture, Cairo UniversityPlant Pathology Department, Faculty of Agriculture, Cairo UniversityPlant Pathology Department, National Research CentreAbstract Background Several chemical bactericides were applied for controlling soft rot bacteria, Pectobacterium carotovorum subsp. carotovorum, which causes the destructive soft rot disease to many economically important vegetables, but because of their toxic hazards on human and environment became limit. The biocontrol was applied to control many plant pathogens. Therefore, this work is aimed to study the antagonistic activity of bacterial agents, i.e. Bacillus subtilis, Bacillus pumilus, Bacillus megaterium and Pseudomonas fluorescens, and fugal agents, i.e. Trichoderma harzianum, Trichoderma viride and Trichoderma virens, to control bacterial soft rot disease under in vitro and in vivo tests. Results The tested treatments could protect the potato tubers against the development of soft rot. T. viride and T. virens were highly effective in reducing soft rot symptoms on inoculated potato tuber slices, when applied at the same time or 2 h before pathogen inoculation, while B. megaterium and T. harzianum were highly effective when applied at the same time or 2 h after pathogen inoculation. In whole potato tubers technique, B.pumilus highly protected the stored potato tuber under artificially infection conditions, than P. fluorescens, T. harzianum, B. subtilis, T. viride, T. virens and B. megaterium, respectively. Conclusion Application of fungal agents or specify the bacterial species can play an important role in controlling bacterial soft rot disease in vegetables and increase the stored periods of potato tubers under storage conditions without any toxic effects.https://doi.org/10.1186/s42269-021-00491-4Biological controlPectobacterium carotovorumSoft rot diseaseVegetables
spellingShingle Hassan Abd-El-Khair
Tarek G. Abdel-Gaied
Maurice S. Mikhail
Ahmed I. Abdel-Alim
Hamdy I. Seif El-Nasr
Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests
Bulletin of the National Research Centre
Biological control
Pectobacterium carotovorum
Soft rot disease
Vegetables
title Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests
title_full Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests
title_fullStr Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests
title_full_unstemmed Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests
title_short Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests
title_sort biological control of pectobacterium carotovorum subsp carotovorum the causal agent of bacterial soft rot in vegetables in vitro and in vivo tests
topic Biological control
Pectobacterium carotovorum
Soft rot disease
Vegetables
url https://doi.org/10.1186/s42269-021-00491-4
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