Antibacterial Activity of Bisanthraquinone (+)-1,1’-Bislunatin

PRAPTIWI PRAPTIWI, YULIASRI JAMAL, AHMAD FATHONI, ARIF NURKANTO, ANDRIA AGUSTA

Abstract


Endophytic fungi has been known as a source of biologically active compunds with a broad sprectrum of activities. One of the endophytic fungi isolated from young stem of gambier plant (Uncaria gambier Roxb.:Rubiaceae), Diaporthe sp. GNBP-10, produced (+)-1,1’-bislunatin when cultivated on potato dextrose agar (PDA). (+)-1,1’-Bislunatin showed moderate antibacterial activity against 7 bacteria (Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Micrococcus luteus, Shigella flexneri, Proteus vulgaris, and P. mirabilis) with MIC value in the range of 

32-64 µg mL-1. The wall disruption and morphological changes in the cells affected by exposure of (+)-1,1’-bislunatin are also discussed in this article.


Keywords


(+)- 1,1’-bislunatin; antibacterial; Diaporthe sp.; effect on bacterial cells; endophytic fungus; GNBP-10; Uncaria gambier Roxb.

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DOI: http://dx.doi.org/10.5454/mi.7.4.4

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