|Hadal biosphere: insight into the microbial ecosystem in the deepest ocean on Earth|
T Nunoura, Y Takaki, M Hirai, S Shimamura, A Makabe, O Koide, ...
Proceedings of the National Academy of Sciences 112 (11), E1230-E1236, 2015
|Microbial denitrification dominates nitrate losses from forest ecosystems|
Y Fang, K Koba, A Makabe, C Takahashi, W Zhu, T Hayashi, AA Hokari, ...
Proceedings of the National Academy of Sciences 112 (5), 1470-1474, 2015
|Characterization and production and consumption processes of N2O emitted from temperate agricultural soils determined via isotopomer ratio analysis|
S Toyoda, M Yano, S Nishimura, H Akiyama, A Hayakawa, K Koba, ...
Global Biogeochemical Cycles 25 (2), 2011
|Hydrothermal fluid geochemistry at the Iheya North field in the mid-Okinawa Trough: Implication for origin of methane in subseafloor fluid circulation systems|
S Kawagucci, H Chiba, J Ishibashi, T Yamanaka, T Toki, Y Muramatsu, ...
Geochemical Journal 45 (2), 109-124, 2011
|Nitrate is an important nitrogen source for Arctic tundra plants|
XY Liu, K Koba, LA Koyama, SE Hobbie, MS Weiss, Y Inagaki, GR Shaver, ...
Proceedings of the National Academy of Sciences 115 (13), 3398-3403, 2018
|Geochemical origin of hydrothermal fluid methane in sediment-associated fields and its relevance to the geographical distribution of whole hydrothermal circulation|
S Kawagucci, Y Ueno, K Takai, T Toki, M Ito, K Inoue, A Makabe, ...
Chemical Geology 339, 213-225, 2013
|Spatial distribution of nitrate sources of rivers in the Lake Biwa watershed, Japan: controlling factors revealed by nitrogen and oxygen isotope values|
N Ohte, I Tayasu, A Kohzu, C Yoshimizu, K Osaka, A Makabe, K Koba, ...
Water Resources Research 46 (7), 2010
|Microbial community and geochemical analyses of trans-trench sediments for understanding the roles of hadal environments|
S Hiraoka, M Hirai, Y Matsui, A Makabe, H Minegishi, M Tsuda, E Rastelli, ...
The ISME Journal 14 (3), 740-756, 2020
|Ammonium first: natural mosses prefer atmospheric ammonium but vary utilization of dissolved organic nitrogen depending on habitat and nitrogen deposition|
XY Liu, K Koba, A Makabe, XD Li, M Yoh, CQ Liu
New Phytologist 199 (2), 407-419, 2013
|Low δ18O Values of Nitrate Produced from Nitrification in Temperate Forest Soils|
Y Fang, K Koba, A Makabe, F Zhu, S Fan, X Liu, M Yoh
Environmental science & technology 46 (16), 8723-8730, 2012
|Isotopomer analysis of production, consumption and soil-to-atmosphere emission processes of N2O at the beginning of paddy field irrigation|
M Yano, S Toyoda, T Tokida, K Hayashi, T Hasegawa, A Makabe, K Koba, ...
Soil Biology and Biochemistry 70, 66-78, 2014
|Evaluation of wastewater nitrogen transformation in a natural wetland (Ulaanbaatar, Mongolia) using dual-isotope analysis of nitrate|
M Itoh, Y Takemon, A Makabe, C Yoshimizu, A Kohzu, N Ohte, ...
Science of the Total Environment 409 (8), 1530-1538, 2011
|Deepest and hottest hydrothermal activity in the Okinawa Trough: the Yokosuka site at Yaeyama Knoll|
J Miyazaki, S Kawagucci, A Makabe, A Takahashi, K Kitada, J Torimoto, ...
Royal Society Open Science 4 (12), 171570, 2017
|Physiological and isotopic characteristics of nitrogen fixation by hyperthermophilic methanogens: key insights into nitrogen anabolism of the microbial communities in Archean …|
M Nishizawa, J Miyazaki, A Makabe, K Koba, K Takai
Geochimica et Cosmochimica Acta 138, 117-135, 2014
|Nitrate dynamics in natural plants: insights based on the concentration and natural isotope abundances of tissue nitrate|
XY Liu, K Koba, A Makabe, CQ Liu
Frontiers in plant science 5, 355, 2014
|Variations in nitrogen-15 natural abundance of plant and soil systems in four remote tropical rainforests, southern China|
A Wang, YT Fang, DX Chen, K Koba, A Makabe, YD Li, TS Luo, M Yoh
Oecologia 174, 567-580, 2014
|Dual nitrogen and oxygen isotope fractionation during anaerobic ammonium oxidation by anammox bacteria|
K Kobayashi, A Makabe, M Yano, M Oshiki, T Kindaichi, KL Casciotti, ...
The ISME Journal 13 (10), 2426-2436, 2019
|Nitrogen isotope ratios of nitrate and N* anomalies in the subtropical South Pacific|
C Yoshikawa, A Makabe, T Shiozaki, S Toyoda, O Yoshida, K Furuya, ...
Geochemistry, Geophysics, Geosystems 16 (5), 1439-1448, 2015
|Seasonal change in microbial sulfur cycling in monomictic Lake Fukami‐ike, Japan|
M Nakagawa, Y Ueno, S Hattori, M Umemura, A Yagi, K Takai, K Koba, ...
Limnology and oceanography 57 (4), 974-988, 2012
|Differential N2O dynamics in two oxygen‐deficient lake basins revealed by stable isotope and isotopomer distributions|
CB Wenk, CH Frame, K Koba, KL Casciotti, M Veronesi, H Niemann, ...
Limnology and Oceanography 61 (5), 1735-1749, 2016