A study on the production and emission of marine-derived volatile halocarbons

2010 Fiscal Year Final Research Report

• Project Area: Linkages in biogeochemical cycles between surface ocean and lower atmosphere
• Project/Area Number: 18067012
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: YOKOUCHI Yoko National Institute for Environmental Studies, 化学環境研究領域, 室長 (20125230)
• Co-Investigator(Kenkyū-buntansha): HASHIMOTO Shinya 日本大学, 文理学部, 教授 (10228413) ; ITOH Nobuya 富山県立大学, 工学部, 教授 (90213066) ; OOKI Atsushi 独立行政法人国立環境研究所, 化学環境研究領域, NIESポスドクフェロー (70450252)
• Project Period (FY): 2006 – 2010
• Keywords: ハロカーボン / 大気観測 / 海洋観測 / 生成メカニズム / ヨウ化メチル

Research Abstract

We conducted systematic measurements of marine-derived halocarbons in the air and in the ocean. Full picture of methyl halides distribution in north-west Pacific and Indian Ocean was obtained from the shipboard measurements. We also found that the strains of cryptophytes and cyanobacteria produced halocarobons during decline phase, and that the in vivo biogenic emission of methyl iodide from marine microalgae was dependent on S-adenosyl-L-methionine (SAM) halide ion/thiol methyl transferase (HTMT) reaction.

Research Products

• [Journal Article] Dichloromethane in the Indian Ocean : Evidence for in-situ production in seawater (2011)
  • Author(s): Ooki A., Yokouchi Y.
  • Journal Title: Marine Chemistry 124 Pages: 119-124
  • Peer Reviewed
• [Journal Article] Isolation characterization of gene encoding S-adenosylmethionine dependent haide/thiol methyl-transferase (HTMT)from marine diatom Phaeodactylum tricornutum : Biogenic mechanism of CH3I emissions in oceans (2011)
  • Author(s): Toda H., Itoh N
  • Journal Title: Phytochemistry 72 Pages: 337-343
  • Peer Reviewed
• [Journal Article] Methyl halides in surface seawater and marine boundary layer of the north west Pacific (2010)
  • Author(s): Ooki A., Tsuda A., Yokouchi Y., 他6名
  • Journal Title: J.Geophys.Res. 115 Pages: C10013
  • Peer Reviewed
• [Journal Article] パージ・アンド・トラップ-ガスクロマトグラフィー/質量分析法による揮発性有機ハロゲン化合物の同時分析法の検討と汽水・海水試料中への適用(ノート) (2010)
  • Author(s): 唐沢宏樹, 木村匡恵, 橋本伸哉, 他4名
  • Journal Title: 分析化学 59 Pages: 1149-1154
  • Peer Reviewed
• [Journal Article] Diurnal and seasonal variations of iodo carbons (CH_2ClI, CH_2I_2, CH_3I, and C_2H_5I) in the marine atmosphere (2010)
  • Author(s): Yokouchi Y., Saito T, Ooki A., 他1名
  • Journal Title: J.Geophys.Res. 116 Pages: D06301
  • Peer Reviewed
• [Journal Article] Distributions of shortlived iodocarbons and biogenic trace gases in the open ocean and atmosphere in the western North Pacific (2010)
  • Author(s): Kurihara M., Kimura M., Hashimoto S., 他9名
  • Journal Title: Marine Chemistry 118 Pages: 156-170
  • Peer Reviewed
• [Journal Article] Identification of coastal emissions of methyl chloride and methyl bromide based on high-frequency measurements on Hateruma Island (2010)
  • Author(s): Yokouchi Y., Nagashima Y., Saito T., 他1名
  • Journal Title: Geochemical Journal 44 Pages: 173-179
  • Peer Reviewed
• [Journal Article] Production and air-sea flux of methyl halides in the western subarctic Pacific in relation to phytoplankton pigment concentrations during iron fertilization experiment (SEEDS II) (2009)
  • Author(s): Hashimoto S., Toda S., Suzuki K., 他9名
  • Journal Title: Deep-Sea Research part II 56 Pages: 2928-2935
  • Peer Reviewed
• [Journal Article] Involvement of S-adenosylmethioninedependent halide/thiol methyltransferase (HTMT) in methyl halide emissions from agricultural plants : isolation and characterization of an HTMT-coding gene from Raphanus sativus (daikon radish) (2009)
  • Author(s): Itoh N., Toda H., Matsuda M., 他3名
  • Journal Title: BMC Plant Biology 9 Pages: 116
  • Peer Reviewed
• [Journal Article] Development of a Silicone Membrane Tube Equilibrator for Measuring Partial Pressures of Volatile Organic Compounds in Natural Water (2008)
  • Author(s): Ooki A., Yokouchi Y.
  • Journal Title: Environmental Science & Technology 42 Pages: 5706-5711
  • Peer Reviewed
• [Journal Article] Global Distribution and Seasonal Concentration Change of Methyl Iodide in the Atmosphere (2008)
  • Author(s): Yokouchi Y., Osada K., Wada M., 他8名
  • Journal Title: J.Geophys.Res. 113 Pages: D18311
  • Peer Reviewed
• [Journal Article] Identification of methyl chloride-emitting plants and atmospheric measurements on a subtropical island (2007)
  • Author(s): Yokouchi Y., Saito T. Ishigaki C., 他1名
  • Journal Title: Chemosphere 69 Pages: 549-553
  • Peer Reviewed
• [Journal Article] A vanadium-dependent bromo peroxidase in the marine red alga Kapp aphycus alvarezii Doty displays clear substrate specificity (2007)
  • Author(s): Z.Kamenarska, Taniguchi T.Itoh N., 他2名
  • Journal Title: Phytochemistry 68 Pages: 1358-1366
  • Peer Reviewed
• [Presentation] 北西太平洋と南北インド洋における表面海水中イソプレン濃度の測定 (2011)
  • Author(s): 大木淳之, 横内陽子, 児玉武稔, 他3名
  • Organizer: 2011年春季海洋学会
  • Place of Presentation: 千葉
  • Year and Date: 2011-03-24
• [Presentation] Measurements of isoprene in surface seawater of the Indian and the Pacific Oceans (2010)
  • Author(s): Ooki A., Kodama T.,Yokouchi Y., 他3名
  • Organizer: AGU Fall Meeting 2010
  • Place of Presentation: San Francisco
  • Year and Date: 2010-12-18
• [Presentation] Production of volatile organic compounds in cultures of cryptophytes (2010)
  • Author(s): Yamakoshi T., Kurihara M., Hashimoto S.
  • Organizer: AGU Fall Meeting 2010
  • Place of Presentation: San Francisco
  • Year and Date: 2010-12-15
• [Presentation] 大気中反応性有機ヨウ素化合物の観測と発生源解析(その2) (2010)
  • Author(s): 横内陽子, 斉藤拓也, 大木淳之, 他1名
  • Organizer: 第16回大気化学討論会
  • Place of Presentation: 東京
  • Year and Date: 2010-11-18
• [Presentation] 海洋性ケイ藻Phaeodactylum tricornutum 由来ハライドイオンメチルトランスフェラーゼの単離解析 (2010)
  • Author(s): 戸田弘, 伊藤伸哉
  • Organizer: ヨウ素学会シンポジウム
  • Place of Presentation: 千葉
  • Year and Date: 2010-11-09
• [Presentation] Seasonal and diurnal variations of CH2I2, CH2ClI,CH3I and C2H5I in the marine atmossphere (2010)
  • Author(s): Yokouchi Y., Saito T., Ooki A., 他1名
  • Organizer: 12^<th> Symp.Int.Comm.Atmos.Chem.Global Pollut.(CACGP), 11^<th> Sci.Conf. Int. Global Atmos.Chem.(IGAC) Project
  • Place of Presentation: Halifax
  • Year and Date: 2010-07-13
• [Presentation] 南北インド洋におけるジクロロメタンの測定 (2010)
  • Author(s): 大木淳之, 横内陽子
  • Organizer: 2010年度日本海洋学会春季大会
  • Place of Presentation: 東京
  • Year and Date: 2010-03-27
• [Presentation] Measurement of methyl halides in surface seawater and marine boundary layer of Northwest Pacific by SOLAS-Japan cruise (2010)
  • Author(s): Ooki A., Yokouchi Y.
  • Organizer: 2010Ocean Science Meeting
  • Place of Presentation: Portland
  • Year and Date: 2010-02-23
• [Presentation] 植物および海洋性微細藻類からのS-adenosyl-L-methionine依存ハライドイオンメチルトランスフェラーゼ(HMT)の単離、解析 (2009)
  • Author(s): 戸田弘、伊藤伸哉
  • Organizer: 富山・福井・石川県立大学合同シンポジウム
  • Place of Presentation: 越路
  • Year and Date: 2009-12-18
• [Presentation] Measurements of methyl halides in surface seawater and marine boundary layer of Northwest Pacific (2009)
  • Author(s): Ooki A., Tsuda A., Yokouchi Y., 他6名
  • Organizer: 2010SOLAS Open Science Conference
  • Place of Presentation: Barcelona
  • Year and Date: 2009-11-18
• [Presentation] full-year observation of reactive iodocar bons at Hateruma Island in the subtropical ocean (2009)
  • Author(s): Yokouchi Y., Saito T., Ooki A., 他1名
  • Organizer: 2010SOLAS Open Science Conference
  • Place of Presentation: Barcelona
  • Year and Date: 2009-11-16
• [Presentation] 大気中反応性有機ヨウ素化合物の観測と発生源解析 (2009)
  • Author(s): 横内陽子, 斉藤拓也, 大木淳之, 他1名
  • Organizer: 第15回大気化学討論会
  • Place of Presentation: つくば
  • Year and Date: 2009-10-22
• [Presentation] 黒潮-親潮混合域における大気と海水中の臭素系ハロカーボンの測定 (2009)
  • Author(s): 大木淳之, 横内陽子
  • Organizer: 2009年度日本地球化学会
  • Place of Presentation: 東広島
  • Year and Date: 2009-09-17