福井 学の低温研便り

北海道大学 低温科学研究所 微生物生態学分野
大学院:環境科学院 生物圏科学専攻 分子生物学コース

探検する心

2012-01-31 14:28:41 | 日記・エッセイ・コラム
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時にはなぜか、大雪原を旅してみたくなるものさ。しかし、大きな溜息をついて、「無理だよね」と我が身に対して吐き捨てる。

 


120130


 

南極観測で大変お世話になった山崎哲秀さんが、今年も、北極圏を犬ぞりで移動しながら観測探検を行っている。無条件に、すばらしい。


探検心。いつまでも大切にしたい。

 

札幌の地。大雪原に出かけることは無理だが、毎日、微生物の世界を探検している。彷徨ったり、迷子になったりしてばかりだが、探検心溢れる探求を続けている。と、山崎さんにお伝えしたい。便り、届くだろうか?


次世代ゲノム科学の最前線

2012-01-28 13:32:59 | 講演会
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いま、微生物生態学はメタゲノム解析の時代となっている。環境に生息する微生物群集から直接DNAを抽出して、そのゲノムを網羅的に解析する。メタゲノム解析によって、未知なる微生物やその機能の発見が期待でき、さらには生態系の物質循環過程の詳細をえぐり出すことが可能となるのである。まさに、「黒船来航」。

 

来る2月15日、東京にて、文部科学省 科学研究費 新学術領域研究「ゲノム支援」公開シンポジウムが開催される。 <style> &lt;!-- /* Font Definitions */ @font-face {font-family:&quot;MS 明朝&quot;; panose-1:2 2 6 9 4 2 5 8 3 4; mso-font-charset:78; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:1 0 16778247 0 131072 0;} @font-face {font-family:Century; panose-1:2 4 6 4 5 5 5 2 3 4; mso-font-charset:0; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 0 0 0 1 0;} @font-face {font-family:&quot;\@MS 明朝&quot;; panose-1:2 2 6 9 4 2 5 8 3 4; mso-font-charset:78; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:1 0 16778247 0 131072 0;} @font-face {font-family:&quot;ヒラギノ角ゴ Pro W3&quot;; panose-1:2 11 3 0 0 0 0 0 0 0; mso-font-alt:&quot;ヒラギノ角ゴ Pro W3&quot;; mso-font-charset:78; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:16777216 0 117702657 0 131072 0;} @font-face {font-family:&quot;\@ヒラギノ角ゴ Pro W3&quot;; panose-1:2 11 3 0 0 0 0 0 0 0; mso-font-charset:78; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:1 0 16778247 0 131072 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:&quot;&quot;; margin:0mm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:12.0pt; font-family:&quot;Times New Roman&quot;; mso-ascii-font-family:Century; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:&quot;MS 明朝&quot;; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Century; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:&quot;Times New Roman&quot;; mso-bidi-theme-font:minor-bidi; mso-font-kerning:1.0pt;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;} @page Section1 {size:612.0pt 792.0pt; margin:99.25pt 30.0mm 30.0mm 30.0mm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --&gt; </style>


当研究室からは、小島さんと二人で参加。

Symposium20120215

 


ちかごろの研究論文update

2012-01-26 10:41:00 | ちかごろの研究論文
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2011年以降


*. Masanaori Fujii, Hisaya Kojima, Tomoya Iwata, Jotaro Urabe and Manabu Fukui. Dissolved organic carbon as major environmental factor affecting bacterioplankton communities in mountain lakes of eastern Japan. Microbial Ecology : 印刷中. 

 

*. Masazumi Tsutsumi, Hisaya Kojima, and Manabu Fukui. Vertical profiles of abundance and potential activity of methane-oxidizing bacteria in sediment of Lake Biwa, Japan. Microbes and Environments. 印刷中.
 


*. Fumiko Nemoto, Hisaya Kojima, and Manabu Fukui. Diversity of freshwater Thioploca species and their specific association with filamentous bacteria of the phylum Chloroflexi. Microbial Ecology 62:753-764.2011.

 

*. Hisaya Kojima, and Manabu Fukui. Sulfuritalea hydrogenivorans gen. nov., sp. nov., a novel facultative autotroph isolated from a freshwater lake. International Journal of Systematic and Evolutionary Microbiology 61: 1651-1655. 2011.

 

*. Masazumi Tsutsumi, Tomoya Iwata, Hisaya Kojima, and Manabu Fukui. Spatiotemporal variations in an assemblage of closely related planktonic aerobic methanotrophs. Freshwater Biology 56: 342-351. 2011. 

 

*. Yuriko Higashioka, Hisaya Kojima and Manabu Fukui. Temperature-dependent differences in community structure of bacteria involved in degradation of petroleum hydrocarbons under sulfate-reducing conditions. Journal of Applied and Microbiology 110: 314-322. 2011. 

 

*. Kyoko Kubo, Katrin Knittel, Rudolf Amann, Manabu Fukui and Katsumi Matsuura. Sulfur-metabolizing bacteria populations in microbial mats of the Nakabusa hot spring, Japan. Systematic and Applied Microbiology 34: 293-302, 2011. 

 

2010

 

*. Hisaya Kojima, and Manabu Fukui. Sulfuricella denitrificans gen. nov., sp. nov., a novel sulfur-oxidizing autotroph isolated from a freshwater lake. International Journal of Systematic and Evolutionary Microbiology 60:2862-2866. 2010. 

 

*. Keiichi Tabuchi, Hisaya Kojima, and Manabu Fukui. Seasonal changes in organic matter mineralization in a sublittoral sediment and temperature-driven decoupling of key processes. Microbial Ecology 60: 551-560. 2010.

 

*. Masanaori Fujii, Yoshinori Takano, Hisaya Kojima, Tamotsu Hoshino, Ryoichi Tanaka and Manabu Fukui. Microbial community structure, pigment composition, and nitrogen source of red snow in Antarctica. Microbial Ecology 59: 466-4775.2010.

 

*. Anne Fiore-Donno, Akiko Kamono, Ema Chao, Manabu Fukui and Thomas Cavalier-Smith. Invalidation of hyperamoeba by transferring its species to other genera of Myxogastria. Journal of Eukaryotic Biology 52: 189-196. 2010.

 

2009 

 

*. Akiko Kamono, Hisaya Kojima, Jun Matsumoto, Kimitaka Kawamura and Manabu Fukui. Airborne Myxomycete spore: Detection using molecular techniques, Naturwissenschaften 96: 147-151.2009.

 

*. Masazumi Tsutsumi, Hisaya Kojima, Shigeru Uemura, Kiyomi Ono, Akihiro Sumida, Toshihiko Hara and Manabu Fukui. Structure and activity of soil-inhabiting methanotrophic communities in northern forest of Japan. Soil Biology and Biochemistry, 41: 403-408.2009.

 

*. Yuriko Higashioka, Hisaya Kojima, Tatsunori Nakagawa, Shinya Sato and Manabu Fukui. A novel n-alkane-degrading bacterium as a minor member of p-xylene-degrading sulfate-reducing consortium. Biodegradation 20: 383-390.2009.  

 

*. Yuriko Higashioka, Hisaya Kojima, Shinya Sato, Manabu Fukui.  Microbial community analysis at crude oil-contaminated soils targeting the 16S ribosomal RNA, xylM, C23O, and bcr genes. Journal of Applied and Microbiology, 107: 126-135. 2009.

 

*. Hisaya Kojima, Tomoya Iwata, and Manabu Fukui.  DNA-based analysis of planktonic methanotrophs in a stratified lake. Freshwater Biology 54: 1501-1509.2009.

 

*. Akiko Kamono, Jun Matsumoto, Hisaya Kojima, and Manabu Fukui.  Characterization of myxomycete communities in soil by reverse transcription polymerase chain reaction (RT-PCR)-based method. Soil Biology and Biochemistry 41: 1324-1330. 2009.

 

*. Hisaya Kojima, Haruo Fukuhara and Manabu Fukui. Community structure of microorganisms asssociated with reddish-brown iron-rich snow. Systematic and Applied Microbiology 32: 429-437, 2009.


雌伏

2012-01-20 01:56:12 | 悩み
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先日、映画「はやぶさ/HAYABUSAを鑑賞。

 

「はやぶさ」プロジェクトに関わっている坂上。彼は、任期付の主任研究員。長引くプロジェクトの途上で、任期が切れてやめざるを得ない坂上はこう言う。

 

「終わりが見えない過程で苦しむのが嫌なら科学者なんて言う仕事はやめた方がよい。殆どの科学者が見届けられない現実にいる。<中略>まあ、所詮、俺は臨時職員だしな。これもプロフェッショナルの仕事と言うもんよ。雌伏だよ。」

 

第146回芥川賞受賞の円城塔氏も、34歳の春までポストドクをやっておられたとのこと

 

年度末を迎え、思い通りに事が進まないことも多々あろうかと思う。「雌伏」。じっと耐えて、好機を待つのが必要なこともある。


教え子に育てられて

2012-01-15 23:29:41 | 日記・エッセイ・コラム
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このところ痛切に感じる、「私自身が教え子たちに育てられている」と。

 

今日も半端なく寒かった札幌。最高気温マイナス5℃、最低気温マイナス11℃。そんな朝方、卒業生の小泉嘉一さんから「サツマイモのケーキ」が届く。ご自身で育てたサツマイモで作ったこだわりのケーキ。

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甘さを控えた品のいい食感。サツマイモなのに喉を通過する際の咽せが全くない。徹底した「手抜き農業」で「べにまさり」(サツマイモの品種の一つ)を栽培したとのこと。太陽のエネルギーがぎっしり詰まったケーキだ。

 

昨年、小泉さんは玉川学園で新たな環境分析室(School Environment Analysis:通称SEA)を立ち上げたとのこと。こうした卒業生の活躍が私自身をエンカレッジしてくれる。

 

小泉さんに、感謝。


浮遊生物

2012-01-14 19:24:58 | 本と雑誌

浮遊生物(プランクトン) 湖に漂う生き物を調べるほどに人の世かかわる

Photo

 

これは浮遊歌人・渡辺泰徳さんの短歌。寒さの底を迎えた札幌で、渡辺泰徳歌集「浮遊生物」(青磁社)を読む。

 

議論好きの歌人は歌う。

深沢の理学部校舎に議論する お茶のみ場にてひがな一日

 

あれやこれやと深く考える歌人。ついつい、、、、

恒温器を消し忘れたかと気になりて柿の木坂をもどる夕暮れ

 

 

藻類に思いを馳せる歌人。

もの思う今朝の桜の薄紅は去年の記憶のああクロロフィル

 

 

万年青年と呼ばれし歌人も世代ギャップを感じたか?

太ピアスつけた男が頭を傾け「むっずかしいな」とビュレット揺する

 

水温は何度なるかと問いたれど「わかりません、今パソコンのなか」

 

歌人もポワーポイント嫌いでしたか。

パワポなどを使うものかというわれの板書をケータイに撮る学生ら

 

教え子の死を悲しむ歌人。

三十歳を待たず逝きたる教え子の通夜に渡れり帷子川

 

歌人もやはり。

書かざりしミジンコの論文今もなおわれの心を重く沈める

 

節操無き研究者の態度を憂う歌人。

温暖化がらみの名分のさばりて基礎研究は水没の危機

 

歌人、いつまでも万年青年で!

わが残す日々にせんこと仕分けたり勤勉なると仮定してだが


新たな年を迎えて

2012-01-10 15:02:12 | 四季折々
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今年も宜しくお願いいたします。

 

厳しい情況でありながらも、誠実かつ着実に物事を進めていきます。

 

降り止まない雪。ここで生き抜くには、粘り強さが必要、ですね。

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