PHYLOGENETIC ASSOCIATION OF ENDOPHYTIC HALOPHILES WITH PLANT GROWTH PROMOTING AND BIOCONTROL POTENTIAL FROM Avicenna marina
Abstract
Endophytic bacteria inhabit plant tissue and offer different benefits to their host which includes growth promotion as well as biotic and a biotic stress tolerance. Plants under stress such as Avicenna marina will selectively harbor halophilic bacteria that can help them adapt to high salt concentration. The present study focuses on the isolation, molecular identification and reconstructing the phylogenetic affiliation of endophytic bacteria associated with different tissues of A. marina. Antimicrobial potential of the isolated endophytes have also been investigated. A total of twelve isolates belonging to six different genera were collected from this plant. About 53% of the isolates have plant growth promoting activity, while 20% showed strong antimicrobial activities in agar assay against the tested plant pathogens. Two isolates were found to produce significant amount of hydrogen cyanide. These results open a wide door of benefits to be gained from endophytic isolates showing advantageous potentials in enhancing economically important plant health.
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