Diversity and activity of fungal community during nitrous oxide emission in an agricultural field

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07818
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: National Agriculture and Food Research Organization (2016-2017); National Institute for Agro-Environmental Sciences (2015)
• Principal Investigator: Hoshino Yuko (高田裕子) 国立研究開発法人農業・食品産業技術総合研究機構, 農業環境変動研究センター, 上級研究員 (40354104)
• Co-Investigator(Renkei-kenkyūsha): AKIYAMA Hiroko 国立研究開発法人・農業・食品産業技術総合研究機構, 農業環境変動研究センター・気候変動対応研究領域, ユニット長 (00354001) ; NAKAJIMA Yasuhiro 国立研究開発法人・農業・食品産業技術総合研究機構, 農業環境変動研究センター・物質循環研究領域, 上級研究員 (10354086)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: カビ脱窒 / 農耕地

Outline of Final Research Achievements

Agricultural soil is the single largest source of global anthropogenic nitrous oxide (N2O) emission, accounting for approximately 59% of anthropogenic emissions. N2O is a greenhouse gas that is also detrimental to the ozone layer. While microbial activities are the major pathways of N2O production, these pathways are not well studied at field scale. The analysis of N2O isotopomer ratios suggested the contribution of fungal denitrification to N2O emission in our study field. We isolated and monitored denitrifying fungi in the same fields. The ratio and the abundance of denitrifying fungi increased in the field samples when the high N2O emission was observed.

Free Research Field

土壌微生物学