Fruiting and non-fruiting myxobacteria: a phylogenetic perspective of cultured and uncultured members of this group.

Abstract:

:The diversity of myxobacteria present in campus garden soil was surveyed by both cultivation-based and cultivation-independent methods. Detailed phylogenetic analysis of cultured and uncultured myxobacteria 16S rRNA gene sequences revealed that many undescribed relatives of the myxobacteria exist in nature. Molecular systematic analyses also revealed that myxobacterial genera described to date on the basis of the morphology of multi-cellular fruiting bodies were mostly monophyletic. However, these known taxa comprised only in a small part of the sequences recovered directly from soil in a cultivation-independent approach, indicating that the group is much more diverse than previously thought. We propose that the myxobacteria exist in two forms: the fruiting and the non-fruiting types. Most of the uncultured myxobacteria may represent taxa which rarely form fruiting bodies, or may lack some or all of the developmental genes needed for fruiting body formation. In order to identify non-fruiting myxobacteria, new morphology-independent cultivation and isolation techniques need to be developed.

journal_name

Mol Phylogenet Evol

authors

Jiang DM,Wu ZH,Zhao JY,Li YZ

doi

10.1016/j.ympev.2007.04.004

subject

Has Abstract

pub_date

2007-08-01 00:00:00

pages

545-52

issue

2

eissn

1055-7903

issn

1095-9513

pii

S1055-7903(07)00104-2

journal_volume

44

pub_type

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