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DNA-DNA Hybridization of Methane Oxidizing Bacteria

Bacteria classified in the family Methylomonadaceae must derive their carbon from one-carbon compounds. They are characterized by the possession of internal membranes of two types. Type I membranes are layered and fill the middle of the cells while type II membranes form concentric layers around the periphery of the cells. Also, there are two metabolic pathways by which the methylobacteria assimilate one-carbon compounds. Further evidence of this dichotomy was sought by DNA-DNA saturation hybridization of DNAs from both types of methylobacteria. Very low DNA-DNA homology was seen between types I and II or within the types. It was not possible, therefore, to correlate the degree of genetic relatedness with either the nature of the internal membranes or the pathway of carbon assimilation.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc503933
Date12 1900
CreatorsAckerson, Jill W.
ContributorsJohansson, Karl R., Jacobson, Myron, Kester, Andrew S.
PublisherNorth Texas State University
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatv, 60 leaves: illus., Text
RightsPublic, Ackerson, Jill W., Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved.

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