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Bacillus velezensis strain MBY2, a potential agent for the management of crown gall disease.
Ben Gharsa, Haifa; Bouri, Meriam; Mougou Hamdane, Amira; Schuster, Christina; Leclerque, Andreas; Rhouma, Ali.
Afiliación
  • Ben Gharsa H; Laboratory of Protection and Improvement of Genetic Resources of Olive, Olive Tree Institute, Tunis, Tunisia.
  • Bouri M; Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia.
  • Mougou Hamdane A; Institute for Microbiology and Biochemistry, Hochschule Geisenheim University, Geisenheim, Germany.
  • Schuster C; Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany.
  • Leclerque A; Laboratory of Protection and Improvement of Genetic Resources of Olive, Olive Tree Institute, Tunis, Tunisia.
  • Rhouma A; Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
PLoS One ; 16(6): e0252823, 2021.
Article en En | MEDLINE | ID: mdl-34129651
The reduction of the use chemical pesticides in agriculture is gaining importance as an objective of decision-makers in both politics and economics. Consequently, the development of technically efficient and economically affordable alternatives as, e.g., biological control agents or practices is highly solicited. Crown gall disease of dicotyledonous plants is caused by ubiquitous soil borne pathogenic bacteria of the Agrobacterium tumefaciens species complex, that comprises the species Agrobacterium fabrum and represents a globally relevant plant protection problem. Within the framework of a screening program for bacterial Agrobacterium antagonists a total of 14 strains were isolated from Tunisian soil samples and assayed for antagonistic activity against pathogenic agrobacteria. One particularly promising isolate, termed strain MBY2, was studied more in depth. Using a Multilocus Sequence Analysis (MLSA) approach, the isolate was assigned to the taxonomic species Bacillus velezensis. Strain MBY2 was shown to display antagonistic effects against the pathogenic A. fabrum strain C58 in vitro and to significantly decrease pathogen populations under sterile and non-sterile soil conditions as well as in the rhizosphere of maize and, to a lower extent, tomato plants. Moreover, the ability of B. velezensis MBY2 to reduce C58-induced gall development has been demonstrated in vivo on stems of tomato and almond plants. The present study describes B. velezensis MBY2 as a newly discovered strain holding potential as a biological agent for crown gall disease management.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tumores de Planta / Bacillus / Solanum lycopersicum / Zea mays / Agrobacterium / Antibiosis Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2021 Tipo del documento: Article País de afiliación: Túnez Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tumores de Planta / Bacillus / Solanum lycopersicum / Zea mays / Agrobacterium / Antibiosis Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2021 Tipo del documento: Article País de afiliación: Túnez Pais de publicación: Estados Unidos