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IJSTR >> Volume 4 - Issue 12, December 2015 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Antagonistic Activity Of Endophytic Bacteria Isolated From Mentha Rotundifolia L.

[Full Text]

 

AUTHOR(S)

Elhartiti Abla, Elhabchi Souad, Hichar Abdelhadi, Omar Bazdi, Ounine Khadija

 

KEYWORDS

Keywords: Bacteria endophytic, Bacillaceae, Pseudomonadaceae, antagonistic activity, Fusarium oxysporum, Aspergillus niger, Botrytis cinerea

 

ABSTRACT

Abstract: This study is implemented for the isolation, purification and identification of endophytic bacteria which produces antifungal substances from the roots of Mentha rotundifolia L. The 59 obtained bacterial isolates were tested for their antagonistic activity by the dual confrontation against the phytopathogenic fungi Fusarium oxysporum, Aspergillus Niger and Botrytis cinerea. Eight bacterial strains were selected for their strong antifungal activity. These are strains M21, M23, M3a, M4, M14d and M3c which belong to the family Bacillaceae, M12 and M3b which belongs to the family of Pseudomonadaceae. Among these, three bacterial strains namely M21, M23 and M12 induce 70% of inhibition of mycelial growth of phytopathogenic fungi Fusarium oxysporum and Aspergillus Niger while the five bacterial strains M3a, M3c, M3b, M4 and M14d have proved to be effective in inhibiting more than 60% of mycelial growth of Botrytis cinerea.

 

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