title: Nitrous oxide emission and microbial community in the rhizosphere of nodulated soybeans during the late growth period.
abstract: We examined N(2)O emissions from the rhizosphere of field-grown soybeans during the late growth stage (99-117 days after sowing). Marked emissions were detected from the nodulated root systems of field-grown soybeans, whereas a non-nodulating soybean mutant showed no emission. Degraded nodules exclusively generated the N(2)O. A culture-independent analysis of microbial communities showed Bradyrhizobium sp., Acidvorax facilis, Salmonella enterica, Xanthomonas sp., Enterobacter cloacae, Pseudomonas putida, Fusarium sp., nematodes, and other protozoans to be more abundant in the degraded nodules, suggesting that some of these organisms participate in the N(2)O emission process in the soybean rhizosphere.
authors.affiliation: Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoboku, Sendai 980-8577, Japan.
authors.forename: Shoko
authors.initials: S
authors.lastname: Inaba
authors.forename: Kenji
authors.initials: K
authors.lastname: Tanabe
authors.forename: Shima
authors.initials: S
authors.lastname: Eda
authors.forename: Seishi
authors.initials: S
authors.lastname: Ikeda
authors.forename: Atsushi
authors.initials: A
authors.lastname: Higashitani
authors.forename: Hisayuki
authors.initials: H
authors.lastname: Mitsui
authors.forename: Kiwamu
authors.initials: K
authors.lastname: Minamisawa