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Title: Retrieval of euryhaline eubacterial and haloarchaeal bionts from nine different benthic sponges: reflection of the bacteriological health of waters of Mandapam, India
Authors: Velho-Pereira, S.
Furtado, Irene
Keywords: Extremophilic-Eubacteria;Euryhaline;Haloarchaea;Bionts;Sponges;Mandapam-waters
Issue Date: May-2014
Publisher: NISCAIR-CSIR, India
Abstract: Bacterial bionts from nine sponges from intertidal reaches of Mandapam (9o17’0" N and 7o7’0"E), namely: Petrosia testudinaria, Cinachyra cavernosa, Haliclona sp., Callyspongia fibrosa, Heteronema erecta, Fasciospongia cavernosa, Callyspongia reticutis var solomonensis unidentified sponges (MAMS), and unidentified sponge (NIO3) were enumerated by the acridine orange and viable count in Tryptone Yeast Extract medium (TYE) with 3-25% NaCl. Forty two pure bionts were characterized to generic level according to Bergey’s Systematic Bacteriology and sarted into groups using SYSTAT-v.12.01. Diversity, richness and evenness of genera were determined using PRIMER v.5. Direct bacterial counts for sponges, averaged at 5.2±2.20×109 cells/g. Viable counts averaged at 3.31±2.60×108 cfu/g, 3.83±2.86×108 cfu/g and 2.89±2.3×108 cfu/g on TYE, 3% TYE and NTYE, respectively. Predominant Genera were in the order of Bacillus>Corynebacterium > Chromohalobacter. Bionts of Genera Loktanella sp., Pontibacillus sp., Planococcus sp., Enterococcus sp. are retrieved for the first time from sponges of Mandapam. Retrieval of bionts of Genera Enterococcus, Corynebacterium, Enterobacter and Pseudomonas known for pathogenicity to humans, reflects pollution of Mandapam waters by sewage and Heralds Caution for safeguarding the waters to ensure sustainability of biota.
Page(s): 773-783
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.43(05) [May 2014]

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