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  • Title: Screening of antagonistic bacteria for biological control of nursery wilt of black pepper (Piper nigrum).
    Author: Anith KN, Radhakrishnan NV, Manomohandas TP.
    Journal: Microbiol Res; 2003; 158(2):91-7. PubMed ID: 12906381.
    Abstract:
    Bacterial antagonists of Phytophthora capsici were isolated from underground shoot portions of rooted cuttings of black pepper. Initially isolates were screened by dual culture on potato dextrose agar and carrot agar. Further, a screening was done on black pepper shoots for supression of lesion caused by the pathogen. Most of the antagonists showed varying levels of antagonism in the dual culture and the shoot assay. Isolate PN-026, showing the highest suppression of lesion development in the shoot assay was found to be the most efficient antagonist in reducing Phytophthora capsici induced nursery wilt of black pepper. This screening involving the host, pathogen, and the antagonist, performed on black pepper shoot (the planting material for this vegetatively propagated crop), could be used as a rapid and reliable method for the isolation of efficient bacterial antagonists of P. capsici.
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