New record of a bloom forming, genotoxic strain Nodularia strain (KT447209) from Andaman and Nicobar Islands, India.
Cyanobacteria blooms in marine waters are limited to only a few taxa; with the genus Nodularia (Nostocales) being one among the most commonly observed and widely studied species. A bloom of Nodularia sp. was observed across a vast area along the coast of the Andaman and Nicobar Islands. The bloom occurred during the summer when salinity was >30‰. This differed to previous reports where blooms have crashed at such high salinities. The molecular phylogeny revealed the Nodularia species to be a novel one. A crude extract from the bloom demonstrated lowed toxicity with an LC50of 5 mg/ml at 48 h towards Artemia salina and slight genotoxicity when tested against human lymphocytes.
Department of Ocean Studies & Marine Biology, Pondicherry University, Brookshabad Campus, Port Blair, Andaman and Nicobar Islands, 744112, India. Electronic address: sumantha.narayana@gmail.com.
Sumantha
S
Narayana
Department of Ocean Studies & Marine Biology, Pondicherry University, Brookshabad Campus, Port Blair, Andaman and Nicobar Islands, 744112, India.
R
R
Mohanraju
Microbial Culture Collection, National Centre for Cell Science, Pune, 411021, India.
Prashant
P
Singh
Department of Chemistry, Savitribai Phule Pune University, Pune, 411007, India.
Viresh
V
Thamke
Department of Chemistry, Savitribai Phule Pune University, Pune, 411007, India.
Savita
S
Tapase
Microbial Culture Collection, National Centre for Cell Science, Pune, 411021, India.
Yogesh
Y
Shouche
Department of Chemistry, Savitribai Phule Pune University, Pune, 411007, India.
Kisan
K
Kodam
D000818:Animals; D001156:Artemia / Q000187:drug effects / Q000235:genetics; D057097:Harmful Algal Bloom; D006801:Humans; D007194:India; D062312:Islands; D008214:Lymphocytes / Q000187:drug effects / Q000378:metabolism; D009153:Mutagens / Q000633:toxicity*; D046932:Nodularia / Q000254:growth & development*; D010802:Phylogeny; D010936:Plant Extracts / Q000633:toxicity; D054712:Salinity
D009153:Mutagens; D010936:Plant Extracts
Artemia bioassay; Cyanobacteria bloom; Genotoxicity; Nodularia