Abstract:
:Species currently classified within the cyanobacterial genus Microcoleus were determined to fall into two distinct clades in a 16S rDNA phylogeny, one containing taxa within the Oscillatoriaceae, the other containing taxa within the Phormidiaceae. The two lineages were confirmed in an analysis of the 16S-23S internal transcribed spacer (ITS) region sequences and secondary structures. The type species for Microcoleus is M. vaginatus Gomont, and this taxon belongs in the Oscillatoriaceae. Consequently, Microcoleus taxa in the Phormidiaceae must be placed in separate genera, and we propose the new genus Coleofasciculus to contain marine taxa currently placed in Microcoleus. The type species for Coleofasciculus is the well-studied and widespread marine mat-forming species Microcoleus chthonoplastes (Mert.) Zanardini ex Gomont. Other characters separating the two families include type of cell division and thylakoid structure.
journal_name
J Phycoljournal_title
Journal of phycologyauthors
Siegesmund MA,Johansen JR,Karsten U,Friedl Tdoi
10.1111/j.1529-8817.2008.00604.xsubject
Has Abstractpub_date
2008-12-01 00:00:00pages
1572-85issue
6eissn
0022-3646issn
1529-8817journal_volume
44pub_type
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