Virus–prokaryote infection pairs associated with prokaryotic production in a freshwater lake

S Shen, K Tominaga, K Tsuchiya, T Matsuda… - Msystems, 2024 - Am Soc Microbiol
Viruses infect and kill prokaryotic populations in a density-or frequency-dependent manner
and affect carbon cycling. However, the effects of the stratification transition, including the …

Seasonal variation in viral infection rates and cell sizes of infected prokaryotes in a large and deep freshwater lake (Lake Biwa, Japan)

S Shen, Y Shimizu - Frontiers in Microbiology, 2021 - frontiersin.org
As viruses regulate prokaryotic abundance and the carbon cycle by infecting and lysing their
prokaryotic hosts, the volume of infected prokaryotes is an important parameter for …

Identification of key virus–prokaryote infection pairs that contribute to viral shunt in a freshwater lake

S Shen, K Tominaga, K Tsuchiya, T Matsuda… - bioRxiv, 2023 - biorxiv.org
Viruses infect and kill productive prokaryotes in a density-or frequency-dependent manner
and affect carbon cycling. However, the effects of the stratification transition, including the …

Differences in regulation of planktonic and epilithic biofilm bacterial production in the middle reaches of a temperate river

K Tsuchiya, A Kohzu, VS Kuwahara… - Aquatic Microbial …, 2021 - int-res.com
To clarify the governing factors of planktonic and epilithic bacterial production (BP) and to
quantify their relative contributions to the carbon cycle, we investigated the seasonal …

Horizontal variability and regulation of bacterial production in Lake Biwa, Japan

K Tsuchiya, N Tomioka, K Komatsu, T Sano, A Kohzu… - Limnology, 2022 - Springer
To clarify horizontal variability and regulation of bacterial production (BP), we investigated
BP and environmental variables along three east–west transects (lines 12, 15, and 17) …

Contribution of large bacteria to bacterial biomass in a deep freshwater lake (Lake Biwa, Japan)

S Shen, Y Shimizu - Aquatic Microbial Ecology, 2020 - int-res.com
Despite the importance of bacterial cell volume in microbial ecology in aquatic
environments, literature regarding the effects of seasonal and spatial variations on bacterial …

Novel method for measuring aquatic bacterial productivity using D10-leucine based on protein synthesis rate

K Tsuchiya, T Sano, N Tomioka, K Kazuhiro… - Aquatic Microbial …, 2020 - int-res.com
The most widely used method for measuring bacterial production is tritium-labeled leucine
(3 H-Leu). Although this method provides methodological simplicity and high sensitivity, the …

近畿圏の公共用水域における大腸菌の分布特性把握および下流への水質汚濁影響

和田桂子, 辻内宏幸, 今村陸人, 立花和昭 - 水環境学会誌, 2025 - jstage.jst.go.jp
抄録 近畿圏水域の大腸菌群数と大腸菌数の測定からふん便汚染の確認および特性について検討
した. AA 類型の琵琶湖は大腸菌群を用いた旧基準で多くの地点が超過したが …

[PDF][PDF] 放射性同位体を用いないバクテリア生産速度測定法の開発と応用

土屋健司 - 地球環境, 2020 - airies.or.jp
摘要バクテリア生産速度 (BP) の定量には放射性同位体を用いたチミジン法やロイシン法が一般的
に用いられており, 放射性同位体の使用が厳しい国・地域においては実測例が限られ …