Abstract：
:Beta-Lactamase (penicillinase) activity was found in a number of strains of blue-green algea. In some cases, this enzyme permitted algae to overcome the inhibitory effects of penicillin. Production and localization of beta-lactamase were studied in a unicellular species, Coccochloris elabens (strain 7003), and in a filamentous, nitrogen-fixing Anabaena species (strain 7120). When cells were grown in a neutral medium with NaNO3 as N source, the pH rose during growth; at a pH of about 10, most of the enzyme was expressed equally well in intact or disrupted cells. If the pH was kept near neutrality during growth by gassing with CO2 in N2 or by growth under conditions of N2 fixation, the enzyme remained cell-bound and cryptic for most of the growth phase, being measurable only after cells were disrupted. The enzymes from strains 7003 and 7120 had greater activity on benzyl penicillin and other penicillins than on cephalosporins. Some differences were observed in the "substrate proliles" of penicillinases from the two strains against different penicillins.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Kushner DJ,Breuil Cdoi
10.1007/BF00429338keywords:
subject
Has Abstractpub_date
1977-03-01 00:00:00pages
219-23issue
2eissn
0302-8933issn
1432-072Xjournal_volume
112pub_type
杂志文章abstract：:The regulatory elements involved in expression of the gene (fdhF) for the selenopolypeptide of formate dehydrogenase and of a gene (or transcriptional unit) (hyd) specifically responsible for the formation of the gas-evolving hydrogenase (hydrogenase 3) in Escherichia coli were investigated. Formate (or a product of i...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00429646
更新日期：1987-06-01 00:00:00
abstract：:It has been shown previously that externally added glycine betaine is accumulated in Escherichia coli in response to the external osmotic strength. Here we have shown, by using nuclear magnetic resonance spectroscopy and radiochemical methods, that E. coli growing in a glucose-mineral medium of elevated osmotic streng...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00492896
更新日期：1987-02-01 00:00:00
abstract：:Aspergillosis causes high morbidity and mortality in avian species. The main goal of this study was to use molecular techniques to identify Aspergillus species collected from different avian species with aspergillosis. A subsample of those isolates was also screened for resistance to itraconazole. Over a 2-year period...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-019-01618-y
更新日期：2019-03-01 00:00:00
abstract：:Acinetobacter strain IVS-B aerobically grows on isovalerate as sole carbon and energy source. Isovalerate is metabolised via isovaleryl-CoA, an intermediate of the oxidative (S)-leucine degradation pathway. A 3-methylglutaconyl-CoA hydratase (EC 4.2.1.18) was purified 65-fold to apparent homogeneity from cell-free ext...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0095-7
更新日期：2006-05-01 00:00:00
abstract：:Recently it was found that the specific activity of H2-forming methylenetetrahydromethanopterin dehydrogenase (Hmd) in Methanothermobacter marburgensis (formerly Methanobacterium thermoautotrophicum strain Marburg) increased six-fold when the hydrogenotrophic archaeon was grown in chemostat culture under nickel-limite...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030000197
更新日期：2000-10-01 00:00:00
abstract：:The chb operon of Escherichia coli is involved in the utilization of chitooligosaccharides. While acquisition of two classes of mutations leading to altered regulation of the chb operon is necessary to confer the ability to utilize the glucose disaccharide cellobiose to wild-type strains of E. coli, in the closely rel...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1299-0
更新日期：2017-03-01 00:00:00
abstract：:Experiments were performed to isolate mutants lacking alkaline phosphatase in Chlamydomonas reinhardi. Mutants with null enzyme activity were obtained. A cytological study of these mutants however revealed cell wall defects, suggesting that the loss of phosphatase activity in these strains is not due to the inactivati...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00436357
更新日期：1975-05-05 00:00:00
abstract：:Diamino butanone (DAB), a competitive inhibitor of ornithine decarboxylase (ODC) a key enzyme in polyamine biosynthesis, inhibited the yeast to hyphae transition in Mucor rouxii, induced by transfer from anaerobiosis to aerobiosis, but not the opposite phenomenon. Addition of DAB to anaerobic yeast cells brought about...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00444661
更新日期：1989-01-01 00:00:00
abstract：:After the addition to soil of large numbers of a cowpea Rhizobium strain, the population declined steadily until the numbers reached about 10(7)/g, and the protozoa rose to about 10(4)/g. When indigenous protozoa were suppressed by the addition of actidione to the soil, the density of the test rhizobium did not fall i...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00492022
更新日期：1977-06-20 00:00:00
abstract：:The ontogeny of the myxomycete Physarum globuliferum was observed on corn meal agar and hanging drop cultures without adding sterile oat flakes, bacteria or other microorganisms. Its complete life cycle including spore germination, myxamoebae, swarm cells, plasmodial development, and maturity of fructifications was de...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-009-0533-4
更新日期：2010-02-01 00:00:00
abstract：:1. With fumarate as the terminal electron acceptor and either H2 or formate as donor, Vibrio succinogenes could grow anaerobically in a mineral medium using fumarate as the sole carbon source. Both the growth rate and the cell yield were increased when glutamate was also present in the medium. 2. Glutamate was incorpo...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00405882
更新日期：1982-05-01 00:00:00
abstract：:The synthesis of the luminous system of the marine luminous bacterium Photobacterium fischeri is subject to a complex, self-regulated control system called autoinduction. The bacteria produce an autoinducer which accumulates in the medium at a constant rate (as a function of cell growth). When autoinducer reaches a cr...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00446657
更新日期：1977-02-04 00:00:00
abstract：:Glyoxalase I is a ubiquitous enzyme that detoxifies methylglyoxal, which is derived from glycolysis but inhibits the growth of cells from microorganisms to mammals. Here, the structural gene for glyoxalase I ( glo1(+)) from the fission yeast Schizosaccharomyces pombe was identified. Disruption of glo1(+) enhanced susc...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-004-0666-4
更新日期：2004-05-01 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
pub_type： 杂志文章
doi：10.1007/s00203-017-1462-2
更新日期：2018-04-01 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
pub_type： 杂志文章
doi：10.1007/BF00446842
更新日期：1976-03-19 00:00:00
abstract：:A high-efficiency fluoranthene-degrading bacterium Paenibacillus sp. PRNK-6 was isolated from PAH-contaminated soil. The strain degrades 96% (240 mg l-1) of fluoranthene in 48 h. Various metabolic intermediates of fluoranthene catabolism were identified by gas chromatography (GC) and gas chromatography-high resolution...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-017-1431-9
更新日期：2018-01-01 00:00:00
abstract：:Rhodopseudomonas capsulata produces both an intermediate (I) and a large (L) form of ribulose-1,5-bisphosphate carboxylase/oxygenase. Both forms are derepressed under CO2-limiting conditions. The L-form of the enzyme is completely repressed when the culture is grown either photoautotrophically or photoheterotrophicall...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00402127
更新日期：1984-07-01 00:00:00
abstract：:A novel actinomycete, strain PA1-10T, isolated from the leaf of Phyllanthus amarus collected from Bangkok, Thailand, was characterized taxonomically using a polyphasic approach. This strain contained the characteristics consistent with those of members of the genus Nonomuraea. It formed short rugose spore chain on aer...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-019-01717-w
更新日期：2020-01-01 00:00:00
abstract：:Respiratory NADH oxidation in the rumen bacterium Prevotella bryantii is catalyzed by the Na+-translocating NADH:quinone oxidoreductase (NQR). A method for cell disruption and membrane isolation of P. bryantii under anoxic conditions using the EmulisFlex-C3 homogenizer is described. We compared NQR activity and protei...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-019-01805-x
更新日期：2020-07-01 00:00:00
abstract：:In this study, on evaluating the physiological function and mechanism of putrescine, we found that putrescine supplementation (1 mM) increases transcription of the putrescine aminotransferase gene, ygjG. Putrescine-dependent expression was confirmed by measuring β-galactosidase activity and with reverse transcription-...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-014-0991-1
更新日期：2014-09-01 00:00:00
abstract：:We investigated the structural and immunochemical characteristics of cell wall mannan obtained from Candida sojae JCM 1644, which is a new yeast species isolated from defatted soybean flakes. The results of a slide-agglutination test and of an enzyme-linked immunosorbent assay using anti-factor sera to the pathogenic ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-007-0339-1
更新日期：2008-05-01 00:00:00
abstract：:Cells of the yeast Saccharomycopsis capsularis fused in pairs after disolving of part of the cross wall between them near the lateral wall. After nuclear migrations through the opening, the cross wall was closed again and the cells at both sides became asci. The wall of the ascospores developed from a prospore wall. B...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00447335
更新日期：1975-08-28 00:00:00
abstract：:In phototrophic and chemoautotrophic proteobacteria, genes encoding enzymes of the Calvin-Benson-Bassham pathway of CO2 fixation are often found in clusters that are transcribed from a single promoter under control of the LysR-type transcriptional activator, CbbR. Mutations affecting CbbR prevent induction of cbb gene...
journal_title：Archives of microbiology
pub_type： 杂志文章,评审
doi：10.1007/s002030050369
更新日期：1996-09-01 00:00:00
abstract：:Many bacterial cells are known to regulate their cooperative behaviors and physiological processes through a molecular mechanism called quorum sensing. Quorum sensing in Serratia marcescens JG is mediated by the synthesis of autoinducer 2 (AI-2) which is a furanosyl borate diester. In this study, the response of quoru...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1213-9
更新日期：2016-08-01 00:00:00
abstract：:Polysomes were isolated both from growing gametophytes of Allomyces arbuscula and from gametangia prepared from mycelia at different periods during gametogenesis. Analysis of polysomes by sucrose gradients showed that ribosomes present in the gametangia monosome pool were shifted into polysomes. This shift was found t...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00413089
更新日期：1977-04-01 00:00:00
abstract：:A strictly anaerobic bacterium, strain PCE1, was isolated from a tetrachloroethene-dechlorinating enrichment culture. Cells of the bacterium were motile curved rods, with approximately four lateral flagella. They possessed a gram-positive type of cell wall and contained cytochrome c. Optimum growth occurred at pH 7.2-...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050308
更新日期：1996-02-01 00:00:00
abstract：:The mechanism of lysis of Eubacterium alactolyticum cell walls by Streptomyces albus G enzyme was studied. The analysis of the peptide terminal groups and peptide subunits isolated from the cell wall digest, released during solubilization of the cell walls, revealed that lytic action of S. albus G enzyme was mainly du...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00406563
更新日期：1989-01-01 00:00:00
abstract：:The subtype of phosphofructokinase activity, either ATP-, ADP- or pyrophosphate-dependent, present in members of three genera from the Spirochaetales was investigated. The individual species/strains examined included Spirochaeta alkalica, S. asiatica, S. halophila, S. isovalerica, S. litoralis, S. zuelzerae, S. thermo...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050777
更新日期：1999-12-01 00:00:00
abstract：:The cold shock response in bacteria involves the expression of low-molecular weight cold shock proteins (CSPs) containing a nucleic acid-binding cold shock domain (CSD), which are known to destabilize secondary structures on mRNAs, facilitating translation at low temperatures. Caulobacter crescentus cspA and cspB are ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-010-0602-8
更新日期：2010-09-01 00:00:00
abstract：:Pulicat Lake sediments are often severely polluted with the toxic heavy metal mercury. Several mercury-resistant strains of Bacillus species were isolated from the sediments and all the isolates exhibited broad spectrum resistance (resistance to both organic and inorganic mercuric compounds). Plasmid curing assay show...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0088-6
更新日期：2006-04-01 00:00:00
