Composition of seed oil of Cardiospermum halicacabum L. var. luridum
Blume (Adelb)

Abstract :

Populations of marine actinobacteria were surveyed from the coastal soils of Tamilnadu (India) after Indian Ocean tsunami occurred on December 26, 2004. Totally 72 marine sediment samples were collected. The isolated actinobacteria were characterized on the basis of the colour of spore mass, reverse side colour, aerial and substrate mycelia formation, production of diffusible pigment and ssporophore morphology, and screened for their antimicrobial activity. Totally, 272 actinobacterial colonies were isolated, among them, 102 isolates were morphologically distinct, which belonged to 9 different genera. From these, 98 isolates with aerial mycelia, 98 isolates with substrate mycelia and 91 isolates had both aerial and substrate mycelia. Among the 102 isolates, 68 and 34 isolates were isolated during pre-and post-tsunami periods respectively. Only 36.8% isolates of pre tsunami period showed antimicrobial activity, whereas 58.8% isolates of post-tsunami period showed antimicrobial activity The sediments of Palk Strait region of Bay of Bengal has a huge diversity of bioactive compound producing marine actinobacteria with pharmaceutical value, which was modified to a great extent by the natural calamities like tsunami.