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Methanogenic population dynamics in unamended and electron acceptor-amended rice field soil slurries as determined by quantitative slot blot hybridization of environmental rRNA extracts (means ± SD; n = 2 extractions per time point). (A) Total rRNA; (B) archaeal rRNA; (C) Methanosarcina spp.; (D) Methanosaetaceae; (E) Methanobacteriaceae; (F) rice cluster I. Abbreviations of probes are from reference 3.
