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{'本研究では、石油炭化水素の生物学的除去に対する温度の影響に関する検討を行った。季節毎に東京湾の湾央、湾奥の2地点から表層海水を採取し、実験室内で一定濃度のn-アルカン混合物を添加して石油汚染海水試料を作成した。その後28日間のバイオレメディエーションイン培養実験を栄養塩添加系と無添加系のそれぞれで実施し、培養期間中の残留炭化水素濃度をGC-MSで測定した。培養試料中の細菌細胞数およびアルカン分解を担う機能的遺伝子であるalkB遺伝子についても測定した。その結果、石油炭化水素のバイオレメディエーション効率は高水温である夏季に最も高く、春、秋、冬の順に低下することが示された。炭素原子数34個までのアルカンは、夏季には28日間の培養で著しく分解された。一方、低水温の冬季は炭素原子の数にかかわらず明らかな分解は認められなかった。また、n-アルカン分解率とalkB遺伝子コピー数との間に関連があることは認められたが、必ずしも相関しなかった。': [0]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2892371249', 'counts_by_year': [{'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 3}, {'year': 2020, 'cited_by_count': 1}], 'updated_date': '2024-09-10T07:50:58.930078', 'created_date': '2018-09-27'}