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Chemical and Biological Aspects of the Sponge Genus Dyside , A Review
Y. Venkateswarlu,P. Ramesh,N. Srinivasa Reddy 한국생약학회 1998 Natural Product Sciences Vol.4 No.3
The chemical constituents anti their biological activities of the sponge genus Dysidea has been reviewed.
A New Oxygenated Furano Sesquiterpene from the Sponge Dysidea fragilis
Y. Venkateswarlu,N. Srinivasa Reddy,P. Ramesh 한국생약학회 1998 Natural Product Sciences Vol.4 No.3
A new oxygenated furano sesquiterpene [1] has been isolated from the sponge Dysidea fragilis collected from Mandapam coast, Tamilnadu, India and its structure was determined by analysis of spectral data.
Chemical and Biological Aspects of the Sponge Genus Petrosia , A Review
P. Ramesh,V. Ravikanth,Y. Venkateswarlu 한국생약학회 2000 Natural Product Sciences Vol.6 No.3
The chemical constituents and their biological activities of the sponge genus Petrosia have been reviewed.
( Usha Kiranmayi Mangamuri ),( Muvva Vijayalakshmi ),( Sudhakar Poda ),( Bramanandam Manavathi ),( Ch. Bhujangarao ),( Y. Venkateswarlu ) 한국미생물 · 생명공학회 2015 Journal of microbiology and biotechnology Vol.25 No.5
Chemical investigation of the actinobacterial isolate Pseudonocardia endophytica VUK-10 has led to the segregation of two known bioactive compounds, namely 4-(2-acetamidoethyl) phenyl acetate and 4-((1, 4-dioxooctahydropyrrolo [1, 2-a] pyrazin-3-yl) methyl) phenyl acetate. The strain was isolated from a sediment sample of the Nizampatnam mangrove ecosystem, south coastal Andhra Pradesh, India. The chemical structure of the active compounds was established on the basis of spectroscopic analysis, including 1H NMR and 13C NMR spectroscopies, FTIR, and EIMS. The antimicrobial and cytotoxic activities of the bioactive compounds produced by the strain were tested against opportunistic and pathogenic bacteria and fungi and on MDA-MB-231, OAW, HeLa, and MCF-7 cell lines. The compounds exhibited antimicrobial activities against gram-positive and gram-negative bacteria and fungi and also showed potent cytotoxic activity against MDA-MB-231, OAW, HeLa, and MCF-7 cell lines. This is the first example for this class of bioactive compounds isolated from Pseudonocardia of mangrove origin.