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Fulltext Identification of bacterial endophytes associated with traditional medicinal plant Tridax procumbens Linn

Preveena J, Bhore SJ

Anc Sci Life, 2013 Jan;32(3):173-7.
PMID: 24501447 DOI: 10.4103/0257-7941.123002

BACKGROUND: In traditional medicine, Tridax procumbens Linn. is used in the treatment of injuries and wounds. The bacterial endophytes (BEs) of medicinal plants could produce medicinally important metabolites found in their hosts; and hence, the involvement of BEs in conferring wound healing properties to T. Procumbens cannot be ruled out. But, we do not know which types of BEs are associated with T. Procumbens.
OBJECTIVE: The objective of this study was to investigate the fast growing and cultivable BEs associated with T. procumbens.
MATERIALS AND METHODS: Leaves and stems of healthy T. Procumbens plants were collected and cultivable BEs were isolated from surface-sterilized leaf and stem tissue samples using Luria-Bertani (LB) agar (medium) at standard conditions. A polymerase chain reaction was employed to amplify 16S rRNA coding gene fragments from the isolates. Cultivable endophytic bacterial isolates (EBIs) were identified using 16S rRNA gene nucleotide sequence similarity based method of bacterial identification.
RESULTS: Altogether, 50 culturable EBIs were isolated. 16S rRNA gene nucleotide sequences analysis using the Basic Local Alignment Search Tool (BLAST) revealed identities of the EBIs. Analysis reveals that cultivable Bacillus spp., Cronobacter sakazakii, Enterobacter spp., Lysinibacillus sphaericus, Pantoea spp., Pseudomonas spp. and Terribacillus saccharophilus are associated with T. Procumbens.
CONCLUSION: Based on the results, we conclude that 24 different types of culturable BEs are associated with traditionally used medicinal plant, T. Procumbens, and require further study.
Fulltext Isolation and identification of bacterial endophytes from pharmaceutical agarwood-producing Aquilaria species

Bhore SJ, Preveena J, Kandasamy KI

Pharmacognosy Res, 2013 Apr;5(2):134-7.
PMID: 23798890 DOI: 10.4103/0974-8490.110545

Resins and gums are used in traditional medicine and do have potential applications in pharmacy and medicine. Agarwood is the fragrant resinous wood, which is an important commodity from Aquilaria species and has been used as a sedative, analgesic, and digestive in traditional medicine. Endophytic bacteria are potentially important in producing pharmaceutical compounds found in the plants. Hence, it was important to understand which types of endophytic bacteria are associated with pharmaceutical agarwood-producing Aquilaria species.

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