Temperature limits to deep subseafloor life in the Nankai Trough subduction zone

  title={Temperature limits to deep subseafloor life in the Nankai Trough subduction zone},
  author={Verena B. Heuer and Fumio Inagaki and Yuki Morono and Yusuke Kubo and Arthur J. Spivack and Bernhard Viehweger and Tina Treude and Felix Beulig and Florence Schubotz and Satoshi Tonai and Stephen A. Bowden and Margaret Cramm and Susann Henkel and Takehiro Hirose and Kira Homola and Tatsuhiko Hoshino and Akira Ijiri and Hiroyuki Imachi and Nana Kamiya and Masanori Kaneko and Lorenzo Lagostina and Hayley R. Manners and Harry-Luke McClelland and Kyle S. Metcalfe and Natsumi Okutsu and Donald Pan and Maija J. Raudsepp and Justine Sauvage and Man-Yin Tsang and David T. Wang and Emily A. Whitaker and Yuzuru Yamamoto and Kiho Yang and Lena Maeda and Rishi R. Adhikari and Clemens Glombitza and Yohei Hamada and Jens Kallmeyer and Jenny Wendt and Lars W{\"o}rmer and Yasuhiro Yamada and Masataka Kinoshita and Kai‐Uwe Hinrichs},
  pages={1230 - 1234}
Deep, hot, and more alive than we thought Marine sediments represent a massive microbial ecosystem, but we still do not fully understand what factors shape and limit life underneath the seafloor. Analyzing samples from a subduction zone off the coast of Japan, Heuer et al. found that microbial life, in particular bacterial vegetative cells, decreases as depth and temperature increases down to ∼600 meters below the seafloor, corresponding to temperatures of ∼70°C. Below this limit, endospores… 
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