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  • Potato bacterial wilt suppression and plant health improvement after application of different antioxidants.

    Author(s) : Farag, S. M. A.Elhalag, K. M. A.Hagag, M. H.Khairy, A. S. M.Ibrahim, H. M.Saker, M. T.Messiha, N. A. S.

    Author Affiliation : Potato brown rot project, Ministry of Agriculture, Dokki, Giza, Egypt.

    Author Email : nevein_messiha@yahoo.com

    Journal article : Journal of Phytopathology 2017 Vol.165 No.7/8 pp.522-537 ref.many

    Abstract : Bacterial wilt caused by Ralstonia solanacearumralstonia solanacearumSubject Category: Organism Names
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    is a devastating disease that often threatens potato production and exportation. The potential of four antioxidantsantioxidantsSubject Category: Chemicals and Chemical Groups
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    (seaweed extract (SWE), yeast, chitosanchitosanSubject Category: Chemicals and Chemical Groups
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    and ascorbic acidascorbic acidSubject Category: Chemicals and Chemical Groups
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    (ASA)) in controlling the disease was evaluated in vitroin vitroSubject Category: Techniques, Methodologies and Equipment
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    , under glasshouse and field conditions. The field experiment was conducted in two naturally infested locations: Wardan, Giza (sandy soil), and Talia, Minufiya (silty clay soil). Only chitosan showed antibacterial propertiesantibacterial propertiesSubject Category: Properties
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    against the pathogen in vitro. SWE, yeast and chitosan showed disease suppression under both glasshouse and field conditions. The disease suppression was accompanied by an increase in the ratio of soil copiotrophic to oligotrophic bacteria. The three antioxidants increased plant nitrogennitrogenSubject Category: Chemicals and Chemical Groups
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    content, decreased soil OM content and decreased C/N ratio. Disease suppression after chitosan application was clearly observed only in Wardan area, which was characterized by a higher soil alkalinitysoil alkalinitySubject Category: Properties
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    . A high percentage of antagonistic fluorescent strains similar to Pseudomonas putidapseudomonas putidaSubject Category: Organism Names
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    group were detected for chitosan-treated plants in Wardan area (sandy soil). ASA drastically decreased the count of the pathogen in soil, but was conducive to the pathogen in plant tissuesplant tissuesSubject Category: Anatomical and Morphological Structures
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    . A remarkable increase in microbial (bacterial and fungal) soil and rhizosphererhizosphereSubject Category: Miscellaneous
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    diversity as indicated by PCR-DGGE analysis for bacterial 16S rRNA and fungal 18S rRNA was recorded. In Talia area (silty clay soil), the soil microbial community was more stable and was in general resistant to the disease where the soils were characterized by high electrical conductivityelectrical conductivitySubject Category: Properties
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    . SWE, yeast and ASA significantly increased crop productioncrop productionSubject Category: Disciplines, Occupations and Industries
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    in Talia area only.

    ISSN : 0931-1785

    URL : http://onlinelibrary.wiley.com/journa...

    Record Number : 20183212591

    Publisher : Wiley

    Location of publication : Berlin

    Country of publication : Germany

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : BacteriabacteriaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , PseudomonaspseudomonasSubject Category: Organism Names
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    , Pseudomonas putidapseudomonas putidaSubject Category: Organism Names
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    , RalstoniaralstoniaSubject Category: Organism Names
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    , Ralstonia solanacearumralstonia solanacearumSubject Category: Organism Names
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    , Solanum tuberosumsolanum tuberosumSubject Category: Organism Names
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    Descriptor(s) : antibacterial propertiesantibacterial propertiesSubject Category: Properties
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    , antioxidantsantioxidantsSubject Category: Chemicals and Chemical Groups
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    , aquatic organismsaquatic organismsSubject Category: Organism Groups
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    , aquatic plantsaquatic plantsSubject Category: Organism Groups
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    , ascorbic acidascorbic acidSubject Category: Chemicals and Chemical Groups
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    , bacterial diseasesbacterial diseasesSubject Category: Diseases, Disorders, and Symptoms
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    , biodiversitybiodiversitySubject Category: Properties
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    , chemical compositionchemical compositionSubject Category: Properties
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    , chitosanchitosanSubject Category: Chemicals and Chemical Groups
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    , clayclaySubject Category: Miscellaneous
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    , clay soilsclay soilsSubject Category: Soil Types
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    , crop productioncrop productionSubject Category: Disciplines, Occupations and Industries
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    , electrical conductivityelectrical conductivitySubject Category: Properties
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    , electrical propertieselectrical propertiesSubject Category: Properties
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    , field experimentationfield experimentationSubject Category: Techniques, Methodologies and Equipment
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    , field testsfield testsSubject Category: Techniques, Methodologies and Equipment
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    , healthhealthSubject Category: Miscellaneous
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    , in vitroin vitroSubject Category: Techniques, Methodologies and Equipment
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    , marine organismsmarine organismsSubject Category: Organism Groups
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    , marine plantsmarine plantsSubject Category: Organism Groups
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    , microorganismsmicroorganismsSubject Category: Organism Groups
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    , nitrogennitrogenSubject Category: Chemicals and Chemical Groups
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    , organic matterorganic matterSubject Category: Miscellaneous
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    , pathogenspathogensSubject Category: Organism Groups
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    , plant extractsplant extractsSubject Category: Commodities and Products
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    , plant pathogenic bacteriaplant pathogenic bacteriaSubject Category: Organism Groups
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    , plant pathogensplant pathogensSubject Category: Organism Groups
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    , plant pathologyplant pathologySubject Category: Disciplines, Occupations and Industries
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    , plant tissuesplant tissuesSubject Category: Anatomical and Morphological Structures
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    , potatoespotatoesSubject Category: Commodities and Products
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    , resistanceresistanceSubject Category: Properties
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    , rhizosphererhizosphereSubject Category: Miscellaneous
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    , ribosomal RNAribosomal rnaSubject Category: Chemicals and Chemical Groups
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    , sandy soilssandy soilsSubject Category: Soil Types
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    , seaweedsseaweedsSubject Category: Organism Groups
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    , soilsoilSubject Category: Miscellaneous
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    , soil alkalinitysoil alkalinitySubject Category: Properties
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    , soil florasoil floraSubject Category: Organism Groups
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    , yeastsyeastsSubject Category: Organism Groups
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    Identifier(s) : aquatic species, bacterial infections, bactericidal properties, bacterioses, bacterium, heavy soils, marine algae, marine species, micro-organisms, phytopathogenic bacteria, phytopathogens, phytopathology, plant-pathogenic bacteria, rRNA, vitamin C

    Broader term(s) : eukaryoteseukaryotesSubject Category: Organism Names
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    , PseudomonadaceaepseudomonadaceaeSubject Category: Organism Names
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    , PseudomonadalespseudomonadalesSubject Category: Organism Names
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    , GammaproteobacteriagammaproteobacteriaSubject Category: Organism Names
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    , ProteobacteriaproteobacteriaSubject Category: Organism Names
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    , BacteriabacteriaSubject Category: Organism Names
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    , prokaryotesprokaryotesSubject Category: Organism Names
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    , PseudomonaspseudomonasSubject Category: Organism Names
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    , BurkholderiaceaeburkholderiaceaeSubject Category: Organism Names
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    , BurkholderialesburkholderialesSubject Category: Organism Names
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    , BetaproteobacteriabetaproteobacteriaSubject Category: Organism Names
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    , RalstoniaralstoniaSubject Category: Organism Names
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    , SolanumsolanumSubject Category: Organism Names
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    , SolanaceaesolanaceaeSubject Category: Organism Names
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    , SolanalessolanalesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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