PI-154 (JTK):

炭素飢餓および光照射条件は紅色光合成細菌Rhodopseudomonas palustrisの浸透圧ストレス抵抗性を上昇させる

新井 沙和, 菅野 菜々子, 松浦 克美, 春田 伸 首都大学東京大学院理工学研究科生命科学専攻 炭素源の枯渇によって飢餓状態になると、高温や高浸透圧、酸などのストレスに対する抵抗性が上昇することが、病原細菌や土壌細菌で報告されている。このような飢餓によるストレス抵抗性の上昇は、自然環境中で微生物が生残性を維持するのに重要な機構のひとつだと考えられる。我々はこれまでの研究で、光合成細菌が炭素源飢餓条件でも光照射があれば、長期間、高い生存率を維持することを報告しており、光エネルギーが飢餓生残に有効であることを示している1)。本研究では、土壌や水圏に広く分布する紅色光
Posted On 06 10月 2015

PJ-161 (JTK):

Effect of heterotrophic bacteria on growth of a marine ammonia-oxidizing archaeon

Choi, Seon-Bin1, Min, Ui-Gi1, Hong, Heeji1, Gwak, Joo-Han1, Rhee, Sung-Keun1 1CBNU. microbiol. Ammonia-oxidizing archaea (AOA) belonged to Thaumarchaeota play significant roles in the first step of nitrification and are abundant in various environments. Up to date, effect of heterotro
Posted On 06 10月 2015

PJ-162 (JTK):

Differential efficiency of nitrate respiration between Bradyrhizbium diazoefficiens and Bradyrhizobium japonicum

F. Siqueira, Arthur1, S_nchez, Cristina1, Itakura, Manabu1, Minamisawa, Kiwamu1 1Touhoku University – Graduate School of Life Sciences Denitrification is an alternative respiratory mechanism that occurs in limitation of oxygen, characterized by using nitrate or other nitrogen ox
Posted On 06 10月 2015

PM-218 (JTK):

Genes associated with melanin-like pigment production in Ralstonia solanacearum

Lee, Seung Yeup1, Kong, Hyun Gi1, Ahmad, Shabir1, Jung, Min Kyeong1, Lee, Seon-Woo1 1*Dong-A Univ, Busan 604-714, Republic of Korea* Ralstonia solanacarum is a devastating plant pathogenic bacterium causing lethal wilt in members of solanceaous plants. In a stationary phase, R. solana
Posted On 06 10月 2015

PG-100 (JTK):


玉澤 聡1, 眞弓 大介2, 持丸 華子2, 坂田 将2, 前田 治男3, 若山 樹3, 五十嵐 雅之3, 鎌形 洋一1, 玉木 秀幸1 1産総研・生物プロセス, 2産総研・地圏微生物, 3国際石油開発帝石 地球上に存在する微生物の総数は1030個と概算され、実にその90%以上が無酸素環境に存在すると推定されており、嫌気性微生物の代謝が地球物質フラックスに与える影響は極めて大きいと考えられている。地球上に点在する深部地下高温油層環境は、無酸素環境の一つである。低浸透性で硬質な帽岩により数万から数百万年単位で地表から隔絶されており、炭素・電子供与体・電子受容体の流出
Posted On 06 10月 2015

PH-112 (JTK):

Genome analysis of branched chain fatty acid degrading syntrophs: “Syntrophomonas wolfei subsp. methylbutyratica” strain JCM 14075T and Syntrophothermus lipocalidus strain TGB-C1T

Narihiro, Takashi1,2, Nobu K., Masaru1,2, Tamaki, Hideyuki1, Kamagata, Yoichi1, Liu, Wen-Tso2 1Bioproduction Research Institute, AIST, 2University of Illinois at Urbana-Champaign Syntrophic degradation of branched chain fatty acid (BCFA) such as 2-methylbutyrate and isobutyrate is an
Posted On 06 10月 2015

PI-135 (JTK):

In situ cultivation technique allows recovery of native bacterial types competitive in their extreme cold environment of northern Greenland

Jung , Dawoon1, Epstein, Slava2, Aoi , Yoshiteru 1,2 1Hiroshima Univ. ISSD., 2Northeastern Univ. Biol. The vast majority of microorganisms do not grow under standard laboratory conditions. On the other hand, it has been shown that in situ cultivation techniques improved the result of
Posted On 06 10月 2015

PI-139 (JTK):

Expression analysis of multiple alkane hydroxylases in Acinetobacter oleivorans DR1

Park, Chulwoo1, Park, Woojun1 1Department of Ecological Engineering, Korea Univ, Seoul, Korea Genomic analyses has shown the presence of multiple alkane-hydroxylase system in diesel-degrading Acinetobacter oleivorans DR1. DR1 cells could grow on medium- and long-chain alkanes (C12-C30
Posted On 06 10月 2015

PI-142 (JTK):

Incorporation of exogenous fatty acids by Pseudomonas nitroreducens TX1 grown solely on Tween emulsifiers

Lin, Chun-Yen1, Yu, Chang-Ping2, Huang, Shir-Ly1 1Dept. Life Sci., Natl. Central Univ., Taiwan, 2Graduate Inst. Environ Eng., Natl. Taiwan Univ., Taiwan Tween emulsifiers were generally regarded as safe and are commonly used in food additives. Also, Tween 80 is implicated in the inhib
Posted On 06 10月 2015

PI-144 (JTK):

Identification of genes involved in the catabolism and stress response to octylphenol polyethoxylates (Triton X-100) in Pseudomonas nitroreducens TX1 by transposon mutagenesis

Tsai, Po-Chun1, Tuan, Nguyen Ngoc1, Yeh, Chen-Wei1, Huang, Shir-Ly1, Lee, Kyoung2 1Dept. Life Sci., Natl. Central Univ., Taiwan, 2Dept. Bio Health Sci., Natl. Changwon Univ., Korea Octylphenol polyethoxylates (OPEOn, Triton X-100) and nonylphenol polyethoxylates (NPEOn, Triton N-101)
Posted On 06 10月 2015