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DNA‐based analysis of planktonic methanotrophs in a stratified lake
Author(s) -
KOJIMA HISAYA,
IWATA TOMOYA,
FUKUI MANABU
Publication year - 2009
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.2009.02199.x
Subject(s) - hypolimnion , epilimnion , biology , temperature gradient gel electrophoresis , ecology , library , plankton , archaea , 16s ribosomal rna , botany , zoology , gene , genetics , eutrophication , nutrient
Summary 1. The assemblage of planktonic methanotrophs in a stratified freshwater lake was investigated. Vertical patterns were analysed by denaturing gradient gel electrophoresis, using the primer pair specific for 16S rRNA genes of type I methanotrophs. 2. The resulting banding patterns could be divided into three distinct groups, and sequenced bands were all related to the Methylobacter species. No amplicon was obtained with the primer pair specific for type II methanotrophs. 3. Cloning analysis of the pmoA gene was performed using samples from three water depths (epilimnion, metalimnion and hypolimnion). The compositions of the clone libraries from the three depths were distinct from each other but all three libraries were dominated by clones related to Methylobacter species.