RRC ID 27295
Author Brown II, Mummey D, Cooksey KE.
Title A novel cyanobacterium exhibiting an elevated tolerance for iron.
Journal FEMS Microbiol Ecol
Abstract Studies directed at cyanobacteria inhabiting iron-depositing hot springs may provide insights into the role of both ancient and contemporary cyanobacteria mediated iron transformations. Here we phylogenetically, morphologically and physiologically characterize a novel cyanobacterium isolated from an iron-depositing hot spring. Phylogenetic analyses indicate that the bacterium is a representative of a new genus, exhibiting a maximum 95.2% homology to database sequences. The isolate is a unicellular cyanobacterium with bladder-like cells typically packed as duplexes, or in extracellular polymeric substance covered clumps and small chains without the ability to produce baeocystes. No growth without added combined nitrogen occurred. While requiring relatively large amounts of iron for growth (>40microM), the isolate was shown to facilitate removal of iron from culture media. These results suggest that the isolate may be an important component of an iron-depositing microbial community. The name "Chroogloeocystis siderophila" for this cyanobacterium is proposed.
Volume 52(3)
Pages 307-14
Published 2005-5-1
DOI 10.1016/j.femsec.2004.11.020
PII S0168-6496(04)00365-4
PMID 16329916
MeSH Bacterial Typing Techniques Cyanobacteria / classification* Cyanobacteria / genetics Cyanobacteria / isolation & purification Cyanobacteria / physiology DNA, Bacterial / analysis DNA, Ribosomal / analysis Hot Springs / microbiology* Iron / metabolism* Molecular Sequence Data Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA
IF 3.675
Times Cited 16
Algae NIES-1031