An Investigation on Pathogenic Micro - Organisms of Paracentrotus Lividus and Holothuria Polii (Echinodermata) Mediterranean Sea Egypt.

Abstract

ABSTRACTicrobiological studies of two echinoderms, the Sea Urchin, Paracentrotus lividus and the Sea cucumber, Holothuria polii from Abu-Qir region of Alexandria Mediterranean coast, were conducted during July 2005. The isolates revealed Gram-positive bacteria from the gonads of the sea urchin and two types of pathogenic fungi from its digestive tract. On the other hand, no isolates were detected from the sea cucumber. The effect of the isolated microorganisms was discussed.

Screening of microbial contamination and antimicrobial activity of sea cucumber Holothuria polii

“…Although five human pathogenic bacterial species and an yeast were isolated from their tegument, intestine and gonads, these isolates were recorded also in the water and the sediment of the investigated area giving an account that they were the source of these microorganisms. On the contrary, Omran and Eissa (2006) isolated nothing from H. polii tegument collected from the same area on July 2005. These findings suggest that the investigated area was subjected to pollution during the collection period.…”