Succession of bacterial populations during plant residue decomposition in rice field soil.

ABSTRACT: The incorporation of rice residues into paddy fields strongly enhances methane production and emissions. Although the decomposition processes of plant residues in rice field soil has been documented, the structure and dynamics of the microbial communities involved are poorly understood. The purpose of the present study was to determine the dynamics of short-chain fatty acids and the structure of bacterial communities during residue decomposition in a rice field soil. The soil was anaerobically incubated with the incorporation of rice root or straw residues for 90 days at three temperatures (15, 30, and 45 degrees C). The dynamics of fatty acid intermediates showed an initial cumulative phase followed by a rapid consumption phase and a low-concentration quasi-steady state. Correspondingly,

SUBMITTER: Rui J 

PROVIDER: S-EPMC2708425 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature