인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Current climate change assessments and greenhouse gas flux models often lack information on the microbiological processes that consume atmospheric nitrous oxide (N<sub>2</sub>O), a potent greenhouse gas. There is limited understanding of phyllospheric microorganisms controlling N<sub>2</sub>O exchange. In this study, we determined the microbial potential for N<sub>2</sub>O consumption in aboveground vegetation in boreal forests. For this, we collected shoot samples from upland spruce forests in Finland and used a novel targeted metagenomics approach with a hybridization capture of gene-specific probes. Most of the samples contained <i>nos</i>Z genes, encoding the N<sub>2</sub>O reductase. Phylogenetic placement showed a significantly higher relative abundance (<i>P</i> < .01) of <i>nos</i>Z Clade I than <i>nos</i>Z Clade II. Bacterial members such as Comamonadaceae, <i>Hydrogenophaga</i>, and <i>Paracoccus</i>, which all harbor <i>nos</i>Z Clade I, were found in high relative abundance in the spruce shoots across the sites, suggesting they play a role in N<sub>2</sub>O consumption capabilities in the spruce phyllosphere. Anoxic incubations, utilizing gas chromatography for N<sub>2</sub>O analyses, showed potential N<sub>2</sub>O consumption activity across the spruce samples. The presence of <i>nir</i>K and <i>nir</i>S suggests potential for denitrification, possibly resulting in N<sub>2</sub>O production. Our finding provides evidence of microbial communities in spruce canopies with potential for N<sub>2</sub>O exchange. Given the vast coverage of boreal forests globally, understanding the role of phyllospheric microorganisms in N₂O exchange is crucial for improving the accuracy of greenhouse gas models and enhancing climate prediction reliability.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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