Application of PTR-MS to an incubation experiment of the marine diatom <i>Thalassiosira pseudonana</i>
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- KAMEYAMA SOHIKO
- National Institute for Environmental Studies
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- TANIMOTO HIROSHI
- National Institute for Environmental Studies
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- INOMATA SATOSHI
- National Institute for Environmental Studies
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- SUZUKI KOJI
- Faculty of Environmental Earth Science, Hokkaido University
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- KOMATSU DAISUKE D.
- Faculty of Science, Hokkaido University
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- HIROTA AKINARI
- Faculty of Science, Hokkaido University
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- KONNO UTA
- Faculty of Science, Hokkaido University
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- TSUNOGAI URUMU
- Faculty of Science, Hokkaido University
Bibliographic Information
- Other Title
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- Application of PTR-MS to an incubation experiment of the marine diatom Thalassiosira pseudonana
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Abstract
Emission of trace gases from the marine diatom Thalassiosira pseudonana (CCMP1335) was continuously monitored with a proton transfer reaction-mass spectrometry (PTR-MS) in an axenic batch culture system under a 13:11-h light:dark cycle. Substantial increases in the signals at m/z 49, 63, and 69, attributable to methanethiol, dimethyl sulfide (DMS), and isoprene, respectively, were observed in response to increases in cell density. Signals at m/z 69 showed diurnal variations throughout the experiment whereas those at m/z 49 were more pronounced at the beginning of the incubation. Interestingly, the signals at m/z 49 and 69 changed immediately following the light-dark and dark-light transitions, suggesting that light plays a crucial role in the production of methanethiol and isoprene. However, in the latter half of the experiment, methanethiol showed negligible diurnal variations regardless of light conditions, suggesting the production of methanethiol from enzymatic cleavage of DMS. The trend in signals at m/z 63 was similar to that of the abundance of senescent cells plus cell debris rather than vegetative cells. The results suggest that aging or death of phytoplankton cells could also substantially control DMS production in natural waters along with the other microbial processes related to bacteria and zooplankton.
Journal
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- GEOCHEMICAL JOURNAL
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GEOCHEMICAL JOURNAL 45 (5), 355-363, 2011
GEOCHEMICAL SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390282679531654144
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- NII Article ID
- 10030362941
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- NII Book ID
- AA00654975
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- COI
- 1:CAS:528:DC%2BC3MXhs1GqtL%2FI
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- ISSN
- 18805973
- 00167002
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- HANDLE
- 2115/50151
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- NDL BIB ID
- 11288005
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed