Microfilament bundles in antheridial nuclei of Achlya ambisexualis E 87.

abstract：:In order to obtain strains of Saccharomycopsis lipolytica impaired in the active transport of L-lysine, mutants resistant to a mixture of L-canavanine, L-4-5-transdehydrolysine and L-S-amino ethylcysteine, taken either all three or two by two, were isolated. These compounds were shown previously to be competitive inhi...

journal_title：Archives of microbiology

authors： Beckerich JM,Lambert M,Heslot H

更新日期：1979-08-06 00:00:00

abstract：:The free tryptophan pool and the levels of two enzymes of tryptophan biosynthesis (anthranilate synthase and indoleglycerolphosphate synthase)have been determined in a wild type strain of Saccharomyces cerevisiae and in mutants with altered regulatory properties. ...

journal_title：Archives of microbiology

authors： Fantes PA,Roberts LM,Huetter R

更新日期：1976-03-19 00:00:00

abstract：:The nitrogen-fixing bacterial strain UFLA 01-1174T was isolated from nodules of Campsiandra laurilifolia Benth. originating from the Amazon region, Brazil. Its taxonomic position was defined using a polyphasic approach. Analysis of the 16S rRNA gene placed the strain in the Bradyrhizobium genus, the closest species be...

journal_title：Archives of microbiology

authors： Cabral Michel D,Martins da Costa E,Azarias Guimarães A,Soares de Carvalho T,Santos de Castro Caputo P,Willems A,de Souza Moreira FM

更新日期：2021-01-01 00:00:00

abstract：:Purple sulfur bacterium Thiocapsa roseopersicina strain BBS requiring vitamin B12 may grow in the dark in media containing no other organic compounds. Under such conditions the cells oxidize sulfide and thiosulfate with the use of O2 and assimilate carbon dioxide. After 10--30s assimilation of NaH14CO3 about 60% of ra...

journal_title：Archives of microbiology

authors： Kondratieva EN,Zhukov VG,Ivanovsky RN,Petushkova UP,Monosov EZ

更新日期：1976-07-01 00:00:00

abstract：:Light-limited batch cultures of Synechococcus spp. strains PCC 6301 and WH 8103 exhibited a positive correlation between the specific growth rate and the cellular content of both RNA and DNA. The ratio of RNA to DNA increased with the growth rate in Synechococcus sp. strain WH 8103, as it does in heterotrophic bacteri...

journal_title：Archives of microbiology

authors： Lepp PW,Schmidt TM

更新日期：1998-09-01 00:00:00

abstract：:The L-alanine mediated germination of food isolated Bacillus cereus DSA 1 spores, which lacked an intact exosporium, increased in the presence of D-cycloserine (DCS), which is an alanine racemase (Alr) inhibitor, reflecting the activity of the Alr enzyme, capable of converting L-alanine to the germination inhibitor D-...

journal_title：Archives of microbiology

authors： Venir E,Del Torre M,Cunsolo V,Saletti R,Musetti R,Stecchini ML

更新日期：2014-02-01 00:00:00

abstract：:All Serratia marcescens strains (total of 33) of different sources were hemolytic including clinical strains previously classified as being nonhemolytic. DNA fragments of the two hemolysin genes hybridized with the chromosomal DNA of S. marcescens, S. liquefaciens, S. kiliensis, S. grimesii, S. proteamaculans, S. plym...

journal_title：Archives of microbiology

authors： Ruan Y,Braun V

更新日期：1990-01-01 00:00:00

abstract：:The entomopathogenic mushroom Cordyceps militaris is a storehouse of various medicinal compounds and pharmacological effects. However, the high frequency of strain degeneration during subculture and preservation severely limits the large-scale production of C. militaris. DNA methylation is an important epigenomic modi...

journal_title：Archives of microbiology

authors： Xin X,Yin J,Zhang B,Li Z,Zhao S,Gui Z

更新日期：2019-04-01 00:00:00

abstract：:Electron microscopic studies emphasized that the protein-E-specific transmembrane tunnel structure, which permeabilizes Escherichia coli, is not randomly distributed over the cell envelope but is restricted to areas of potential division sites. These sites were located predominantly in the middle of the cell, but appr...

journal_title：Archives of microbiology

authors： Witte A,Brand E,Mayrhofer P,Narendja F,Lubitz W

更新日期：1998-10-01 00:00:00

abstract：:Stenotrophomonas maltophilia (Sm), with most of the isolates being resistant to multidrugs, is an opportunistic bacterium causing nosocomial infections. In this study, a novel virulent Sm phage, Smp14, was characterized. Electron microscopy showed that Smp14 resembled members of Myoviridae and adsorbed to poles of the...

journal_title：Archives of microbiology

authors： Chen CR,Lin CH,Lin JW,Chang CI,Tseng YH,Weng SF

更新日期：2007-08-01 00:00:00

abstract：:Xanthan-deficient mutants of Xanthomonas axonopodis pv. citri, the bacterium responsible for citrus canker, were generated by deletion and marker exchange of the region encoding the carboxy-terminal end of the first glycosyltransferase, GumD. Mutants of gumD did not produce xanthan and remained pathogenic in citrus pl...

journal_title：Archives of microbiology

authors： Dunger G,Relling VM,Tondo ML,Barreras M,Ielpi L,Orellano EG,Ottado J

更新日期：2007-08-01 00:00:00

abstract：:The major cobamide-containing protein from methanol-utilizing Sporomusa ovata was 8-fold enriched to apparent homogeneity. The protein exhibited a molecular mass of 40 kDa and of 38 kDa determined by gel filtration and by SDS-polyacrylamide gel electrophoresis, respectively. This finding indicates a monomeric protein ...

journal_title：Archives of microbiology

authors： Stupperich E,Aulkemeyer P,Eckerskorn C

更新日期：1992-01-01 00:00:00

abstract：:In beta-lactam-antibiotic-producing fungi, such as Aspergillus (Emericella) nidulans, L-alpha-aminoadipic acid is the branching point of the lysine and penicillin biosynthesis pathways. To obtain a deeper insight into the regulation of lysine biosynthesis genes, the regulation of the A. nidulans lysF gene, which encod...

journal_title：Archives of microbiology

authors： Weidner G,Steidl S,Brakhage AA

更新日期：2001-02-01 00:00:00

abstract：:The hmc operon of Desulfovibrio vulgaris subsp. vulgaris Hildenborough consists of six genes (hmcA to hmcF) that encode structural components of the high-molecular-mass cytochrome redox protein complex (the Hmc complex). Two genes (rrf1 and rrf2) encoding regulatory proteins are present downstream of hmcF. Expression ...

journal_title：Archives of microbiology

authors： Keon RG,Fu R,Voordouw G

更新日期：1997-06-01 00:00:00

abstract：:The aim of this study was to investigate the viable but nonculturable (VBNC) state of the bacterium. Vibrio alginolyticus VIB283 was cultured in sterilized seawater microcosm at 4 degrees C. Culturability of the cells in the microcosm was monitored by spread plate count (PC) on 2216E agar, PCs declined to undetectable...

journal_title：Archives of microbiology

authors： Du M,Chen J,Zhang X,Li A,Li Y

更新日期：2007-09-01 00:00:00

abstract：:The Streptomyces virginiae gamma-butyrolactone autoregulator virginiae butanolide is a low-molecular-weight Streptomyces hormone eliciting virginiamycin biosynthesis through its binding to the specific receptor protein, BarA. Immediately downstream of barA lies barB, the transcription of which is tightly repressed by ...

journal_title：Archives of microbiology

authors： Matsuno K,Yamada Y,Lee CK,Nihira T

更新日期：2004-01-01 00:00:00

abstract：:An Arthrobacter sp. growing on 4-Chlorobenzoic acid as its sole source of carbon excretes 4-hydroxygenzoic acid and protocatechuic acid into the culture medium. Protocatechuic acid is further attacked by "meta"-cleavage. During growth of the Arthrobacter sp. on benzoic acid cis-cis muconic acid can be isolated from th...

journal_title：Archives of microbiology

authors： Ruisinger S,Klages U,Lingens F

更新日期：1976-11-02 00:00:00

abstract：:Strain YIM B00363T, a Gram-positive, aerobic, non-motile, rod-shaped, spore-forming bacterium, was isolated from saline soil samples collected from a salt lake in Xinjiang province, north-west China, and was characterized using a polyphasic approach. The optimum growth temperature was 37 °C and the optimum pH was 7.5-...

journal_title：Archives of microbiology

authors： Yang L,Huang HW,Wang Y,Kou YR,Yin M,Li Y,Wang XQ,Zhao GF,Zhu WY,Tang SK

更新日期：2021-01-01 00:00:00

abstract：:The Sinorhizobium fredii HH103 rkp-1 region, which is involved in capsular polysaccharide (KPS) biosynthesis, is constituted by the rkpU, rkpAGHIJ, and kpsF3 genes. Two mutants in this region affecting the rkpA (SVQ536) and rkpI (SVQ538) genes were constructed. Polyacrylamide gel electrophoresi...

journal_title：Archives of microbiology

authors： Margaret-Oliver I,Lei W,Parada M,Rodríguez-Carvajal MA,Crespo-Rivas JC,Hidalgo Á,Gil-Serrano A,Moreno J,Rodríguez-Navarro DN,Buendía-Clavería A,Ollero J,Ruiz-Sainz JE,Vinardell JM

更新日期：2012-02-01 00:00:00

abstract：:The antimicrobial properties of copper ions have been known for a long time. However, the exact mechanism of action of the transition metal on microorganisms has long been unclear. X-ray absorption near-edge structure (XANES) spectroscopy at the Cu K edge allows the determination of copper speciation in Staphylococcus...

journal_title：Archives of microbiology

authors： Zanzen U,Bovenkamp-Langlois L,Klysubun W,Hormes J,Prange A

更新日期：2018-04-01 00:00:00

abstract：:Rather recently it has become clear that prokaryotes (Archaea and Bacteria) are able to glycosylate proteins. A literature survey revealed the different types of glycoproteins. They include mainly surface layer (S-layer) proteins, flagellins, and polysaccharide-degrading enzymes. Only in a few cases is structural info...

journal_title：Archives of microbiology

authors： Moens S,Vanderleyden J

更新日期：1997-09-01 00:00:00

abstract：:Planococcus halotolerans, recently described as a novel species with SCU63T as the type strain, is capable of thriving in up to 15% NaCl and temperatures as low as 0 °C. To better understand its adaptation strategies at the genomic level, strain SCU63T was subjected to whole-genome sequencing and data mining. The high...

journal_title：Archives of microbiology

authors： Gan L,Li X,Tian Y,Peng B

更新日期：2020-12-01 00:00:00

abstract：:The role of HoxX in hydrogenase biosynthesis of Alcaligenes eutrophus H16 was re-examined. The previously characterized hoxX deletion mutant HF344 and a newly constructed second hoxX mutant carrying a smaller in-frame deletion were studied. The second mutant was impaired in the activity of both the soluble and the mem...

journal_title：Archives of microbiology

authors： Buhrke T,Friedrich B

更新日期：1998-11-01 00:00:00

abstract：:Acinetobacter calcoaceticus LMD 79.41 produced significant amounts of pyrrolo-quinoline quinone (PQQ) in its culture medium when grown on quinic acid or shikimic acid. Studies with LMD 79.41 and PQQ- -mutants of this strain demonstrated that this organism contains an NAD(P)-independent quinate dehydrogenase (QDH) (EC ...

journal_title：Archives of microbiology

authors： van Kleef MA,Duine JA

更新日期：1988-05-01 00:00:00

abstract：:We report the phylogenetic and physiological characterization of a mesophilic and halophilic member of the filamentous anoxygenic phototrophic (FAP) bacteria, provisionally named ' Candidatus Chorothrix halophila' gen. nov. sp. nov., that has been maintained in a highly enriched culture in our laboratory for over a de...

journal_title：Archives of microbiology

authors： Klappenbach JA,Pierson BK

更新日期：2004-01-01 00:00:00

abstract：:Acinetobacter species remain alive in hospitals on various surfaces, both dry and moist, forming an important source of hospital infections. These bacteria are naturally resistant to many antibiotic classes. Although the role of the quorum sensing system in regulating the virulence factors of Acinetobacter species has...

journal_title：Archives of microbiology

authors： Erdönmez D,Rad AY,Aksöz N

更新日期：2017-12-01 00:00:00

abstract：:Bacillus subtilis strain 168 encodes two flavocytochromes P450, Cyp102A2 and Cyp102A3. The cyp102A3 gene is preceded by, and organized in an operon with, a gene for a transcriptional regulator, encoded by fatR. The paralogous gene, cyp102A2, is most likely transcribed as a mono-cistronic message. We show that fatR enc...

journal_title：Archives of microbiology

authors： Gustafsson MC,Palmer CN,Wolf CR,von Wachenfeldt C

更新日期：2001-12-01 00:00:00

abstract：:Cadmium is a non-essential toxic heavy metal for organisms, including plants and cyanobacteria. Cadmium resistance transporters involved in resistance of cells against various toxicants such as drugs and effluxes cytotoxic compounds from cells. However, cadmium resistance-associated protein (CadD) has never been repor...

journal_title：Archives of microbiology

authors： Singh PK,Tang M,Kumar S,Shrivastava AK

更新日期：2018-04-01 00:00:00

abstract：:The biosynthesis of two flavoproteins, 6-hydroxy-D-nicotine oxidase with covalently bound FAD and 6-hydroxy-L-nicotine oxidase containing non-covalently bound FAD, was studied in wild-type cells and in a riboflavin-requiring mutant of Arthrobacter oxidans. In the mutant cells, the rate of synthesis and the maximal act...

journal_title：Archives of microbiology

authors： Hamm HH,Decker K

更新日期：1978-10-04 00:00:00

abstract：:Sulfolane (tetrahydrothiophene-1,1-dioxide) is used in the Sulfinol process for natural gas sweetening. At many sour-gas processing plants spills, landfills and leakage from unlined surface storage ponds have contaminated groundwaters with sulfolane. Due to its high water solubility and mobility in aquifers, sulfolane...

journal_title：Archives of microbiology

authors： Greene EA,Beatty PH,Fedorak PM

更新日期：2000-07-01 00:00:00