WordNet
- of a color intermediate between red and blue (同)violet, purplish
- color purple (同)empurple, purpurate
- become purple
- of imperial status; "he was born to the purple"
- a purple color or pigment (同)purpleness
- (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants (同)bacterium
PrepTutorEJDIC
- 〈U〉『紫色』 / 〈U〉(特に,昔の王家や高位の人がつけた)紫布,紫衣 / 《the ~》王位,高位 / 『紫色の』
- 『バクテリア』,細菌
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- 1. 成人における尿道カテーテル関連尿路感染症 catheter associated urinary tract infection in adults
- 2. 細菌検査室におけるグラム染色および培養結果に対するアプローチ approach to gram stain and culture results in the microbiology laboratory
- 3. 資源に富んだ国における急性下痢の疫学および原因 epidemiology and causes of acute diarrhea in resource rich countries
- 4. Travelers' diarrhea: Microbiology, epidemiology, and prevention
- 5. 腎疾患の診断における尿検査 urinalysis in the diagnosis of kidney disease
English Journal
- Calvin cycle mutants of photoheterotrophic purple nonsulfur bacteria fail to grow due to an electron imbalance rather than toxic metabolite accumulation.
- Gordon GC1, McKinlay JB.Author information 1Biotechnology Undergraduate Program, Indiana University, Bloomington, Indiana, USA.AbstractPurple nonsulfur bacteria grow photoheterotrophically by using light for energy and organic compounds for carbon and electrons. Disrupting the activity of the CO2-fixing Calvin cycle enzyme, ribulose 1,5-bisphosphate carboxylase (RubisCO), prevents photoheterotrophic growth unless an electron acceptor is provided or if cells can dispose of electrons as H2. Such observations led to the long-standing model wherein the Calvin cycle is necessary during photoheterotrophic growth to maintain a pool of oxidized electron carriers. This model was recently challenged with an alternative model wherein disrupting RubisCO activity prevents photoheterotrophic growth due to the accumulation of toxic ribulose-1,5-bisphosphate (RuBP) (D. Wang, Y. Zhang, E. L. Pohlmann, J. Li, and G. P. Roberts, J. Bacteriol. 193:3293-3303, 2011, http://dx.doi.org/10.1128/JB.00265-11). Here, we confirm that RuBP accumulation can impede the growth of Rhodospirillum rubrum (Rs. rubrum) and Rhodopseudomonas palustris (Rp. palustris) RubisCO-deficient (ΔRubisCO) mutants under conditions where electron carrier oxidation is coupled to H2 production. However, we also demonstrate that Rs. rubrum and Rp. palustris Calvin cycle phosphoribulokinase mutants that cannot produce RuBP cannot grow photoheterotrophically on succinate unless an electron acceptor is provided or H2 production is permitted. Thus, the Calvin cycle is still needed to oxidize electron carriers even in the absence of toxic RuBP. Surprisingly, Calvin cycle mutants of Rs. rubrum, but not of Rp. palustris, grew photoheterotrophically on malate without electron acceptors or H2 production. The mechanism by which Rs. rubrum grows under these conditions remains to be elucidated.
- Journal of bacteriology.J Bacteriol.2014 Mar;196(6):1231-7. doi: 10.1128/JB.01299-13. Epub 2014 Jan 10.
- Purple nonsulfur bacteria grow photoheterotrophically by using light for energy and organic compounds for carbon and electrons. Disrupting the activity of the CO2-fixing Calvin cycle enzyme, ribulose 1,5-bisphosphate carboxylase (RubisCO), prevents photoheterotrophic growth unless an electron accept
- PMID 24415727
- Aestuariispira insulae gen. nov., sp. nov., a novel lipolytic bacterium isolated from a tidal flat.
- Park S1, Park JM, Kang CH, Yoon JH.Author information 1Sungkyunkwan University.AbstractA Gram-stain-negative, non-motile, aerobic, curved to spiral rod-shaped bacterium, designated AH-MY2T, was isolated from a tidal flat on Aphae island of southwestern sea, South Korea, and its taxonomic position was investigated using a polyphasic taxonomic approach. Strain AH-MY2T grew optimally at 30 °C, at pH 7.0-8.0 and in the presence of 2.0 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain AH-MY2T clustered with the type strain of Terasakiella pusilla and this cluster joined the clade comprising the type strains of Thalassospira species. Strain AH-MY2T exhibited 16S rRNA gene sequence similarity values of 90.6 % to the type strain of T. pusilla and of less than 91.0 % to the type strains of other recognized species. Strain AH-MY2T contained Q-10 as the predominant ubiquinone and C18:1 ω7c as the major fatty acid. The major polar lipids detected in strain AH-MY2T were phosphatidylglycerol, phosphatidylethanolamine, two unidentified aminolipids and one unidentified glycolipid. The DNA G+C content of strain AH-MY2T was 56.0 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain AH-MY2T constitutes a new genus and species within family Rhodospirillaceae of the class Alphaproteobacteria, for which the name Aestuariispira insulae gen. nov., sp. nov. is proposed. The type strain of Aestuariispira insulae is AH-MY2T (= KCTC 32577T = CECT 8488T).
- International journal of systematic and evolutionary microbiology.Int J Syst Evol Microbiol.2014 Feb 24. doi: 10.1099/ijs.0.060772-0. [Epub ahead of print]
- A Gram-stain-negative, non-motile, aerobic, curved to spiral rod-shaped bacterium, designated AH-MY2T, was isolated from a tidal flat on Aphae island of southwestern sea, South Korea, and its taxonomic position was investigated using a polyphasic taxonomic approach. Strain AH-MY2T grew optimally at
- PMID 24566829
- The FtsZ-like protein FtsZm of Magnetospirillum gryphiswaldense likely interacts with its generic homolog and is required for biomineralization under nitrate deprivation.
- Müller FD1, Raschdorf O, Nudelman H, Messerer M, Katzmann E, Plitzko JM, Zarivach R, Schüler D.Author information 1Ludwig Maximilian University Munich, Department Biology I, Biocenter, Planegg-Martinsried, Germany.AbstractMidcell selection, septum formation, and cytokinesis in most bacteria are orchestrated by the eukaryotic tubulin homolog FtsZ. The alphaproteobacterium Magnetospirillum gryphiswaldense (MSR-1) septates asymmetrically, and cytokinesis is linked to splitting and segregation of an intracellular chain of membrane-enveloped magnetite crystals (magnetosomes). In addition to a generic, full-length ftsZ gene, MSR-1 contains a truncated ftsZ homolog (ftsZm) which is located adjacent to genes controlling biomineralization and magnetosome chain formation. We analyzed the role of FtsZm in cell division and biomineralization together with the full-length MSR-1 FtsZ protein. Our results indicate that loss of FtsZm has a strong effect on microoxic magnetite biomineralization which, however, could be rescued by the presence of nitrate in the medium. Fluorescence microscopy revealed that FtsZm-mCherry does not colocalize with the magnetosome-related proteins MamC and MamK but is confined to asymmetric spots at midcell and at the cell pole, coinciding with the FtsZ protein position. In Escherichia coli, both FtsZ homologs form distinct structures but colocalize when coexpressed, suggesting an FtsZ-dependent recruitment of FtsZm. In vitro analyses indicate that FtsZm is able to interact with the FtsZ protein. Together, our data suggest that FtsZm shares key features with its full-length homolog but is involved in redox control for magnetite crystallization.
- Journal of bacteriology.J Bacteriol.2014 Feb;196(3):650-9. doi: 10.1128/JB.00804-13. Epub 2013 Nov 22.
- Midcell selection, septum formation, and cytokinesis in most bacteria are orchestrated by the eukaryotic tubulin homolog FtsZ. The alphaproteobacterium Magnetospirillum gryphiswaldense (MSR-1) septates asymmetrically, and cytokinesis is linked to splitting and segregation of an intracellular chain o
- PMID 24272781
Japanese Journal
- Differences in Survivability under Starvation Conditions Among Four Species of Purple Nonsulfur Phototrophic Bacteria
- Microbes and Environments 29(3), 326-328, 2014
- NAID 130004057188
- 紅色非硫黄細菌を用いた燃料電池
- 精密工学会学術講演会講演論文集 2012A(0), 479-480, 2012
- NAID 130004660756
- 416 有機性廃水を基質とした光合成微生物による水素エネルギー生産(新エネルギー(2),環境保全型エネルギー技術)
- 環境工学総合シンポジウム講演論文集 2008(18), 364-367, 2008-07-09
- NAID 110007703655
Related Links
- III. Enrichment and Isolation of Purple Non-Sulfur Photosynthetic Bacteria. In looking for the purple non-sulfur bacteria, we find it most advantageous to set up conditions for photoheterotrophic growth, utilizing a source of light ...
- Observations Can you identify the genus of your isolate? The purple non-sulfur Bacteria can be generally classified by gross microscopic morphology into 4 groups: Rhodomicrobium, Rhodobacter, Rhodopseudomonas and ...
Related Pictures
★リンクテーブル★
| リンク元 | 「紅色非硫黄細菌」「Rhodospirillum」「Rhodospirillales」「Rhodospirillaceae」「Rhodopseudomonas」 |
| 関連記事 | 「purple」 |
「紅色非硫黄細菌」
- ラ
- Rhodopseudomonas、purple nonsulfur bacteria
- 関
- ロドスピリルム属、ロドシュードモナス属、Rhodopseudomonas属、ロドシュードモナス、ロドスピリルム目、ロドスピリラム科
「Rhodospirillum」
ロドスピリラム、ロドスピリルム、ドスピリラム属、ロドスピリルム属、Rhodospirillum属
「Rhodospirillales」
- ドスピリラム目、ロドスピリルム目
「Rhodospirillaceae」
- ドスピリラム科、ロドスピリルム科
「Rhodopseudomonas」
ロドシュードモナス、紅色非硫黄細菌、ドシュードモナス属、Rhodopseudomonas属
「purple」