Abstract：
:The ADPglucose pyrophosphorylases from Rhodopseudomonas sphaeroides and Rhodopseudomonas gelatinosa are activated by fructose-6-phosphate, pyruvate and fructose-1,6 biophosphate-P2. The effects of the activators are to increase significantly the Vmax of ADPglucose synthesis and to lower the S0.5 values (concentration of substrates giving 50% maximal velocity) for ATP and MgCl2. The R. sphaeroides enzyme is inhibited by Pi while the R. gelatinosa enzyme is inhibited by AMP as well as by Pi. The interaction between inhibitor and activator is complex. At very low concentrations of activator the enzyme is more sensitized to inhibition. However, at higher concentrations of activator there is a decrease in the sensitivity of the enzyme towards inhibition. The findings are discussed with respect to glycogen synthesis in these microorganisms and may be related to findings that indicate that Rhodopseudomonads have the ability to degrade sugars via the Entner-Duodoroff or Embden-Meyerhoff pathways.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Preiss J,Greenberg E,Parsons TF,Downey Jdoi
10.1007/BF00421887subject
Has Abstractpub_date
1980-05-01 00:00:00pages
21-31issue
1eissn
0302-8933issn
1432-072Xjournal_volume
126pub_type
杂志文章abstract：:L-Alanine dehydrogenase was found in extracts of the antibiotic producer Streptomyces clavuligerus. The enzyme was induced by ammonia, and the level of induction was dependent on the extracellular concentraction. L-Alanine was the only amino acid able to induce alanine dehydrogenase. The enzyme was characterized from ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00403210
更新日期：1980-03-01 00:00:00
abstract：:The fast-growing Rhizobium sp. strain NGR234, isolated from Papua New Guinea, and 13 strains of Sinorhizobium fredii, isolated from China and Vietnam, were fingerprinted by means of RAPD, REP, ERIC and ARDRA. ERIC, REP and RAPD markers revealed a considerable genetic diversity among fast-growing rhizobia. Chinese isol...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-003-0559-y
更新日期：2003-07-01 00:00:00
abstract：:A thermostable homodimeric isocitrate dehydrogenase from the hyperthermophilic sulfate-reducing archaeon Archaeoglobus fulgidus was purified and characterized. The mol. mass of the isocitrate dehydrogenase subunit was 42 kDa as determined by SDS-PAGE. Following separation by SDS-PAGE, A. fulgidus isocitrate dehydrogen...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050516
更新日期：1997-11-01 00:00:00
abstract：:Enoate reductase present in Clostridium kluyveri and Clostridium spec. La 1 could be detected in three strains of C. tyrobutyricum and ten clostridia belonging to the groups of proteolytic and saccharolytic or proteolytic species, respectively. In C. pasteurianum, C. butyricum and C. propionicum enoate reductase could...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00419482
更新日期：1983-08-01 00:00:00
abstract：:Methanotrophs are ubiquitous in the environment and play an important role in mitigating global warming due to methane. They are also potentially interesting for industrial applications such as production of bulk chemicals or bioremediation. The first step in the oxidation of methane is the conversion to methanol by m...
journal_title：Archives of microbiology
pub_type： 杂志文章,评审
doi：10.1007/s002030000158
更新日期：2000-05-01 00:00:00
abstract：:The thermotolerant methylotroph Bacillus sp. C1 possesses a novel NAD-dependent methanol dehydrogenase (MDH), with distinct structural and mechanistic properties. During growth on methanol and ethanol, MDH was responsible for the oxidation of both these substrates. MDH activity in cells grown on methanol or glucose wa...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00245161
更新日期：1992-01-01 00:00:00
abstract：:In this study, two quorum sensing (QS) system genes, las and rhI; N-3-oxo-dodecanoyl homoserine lactone (AHL; 3-O-C12-HSL); and QS-related virulence factors and correlation between them were assessed in 30 fish origin P. aeruginosa isolates. The detection of two QS system of the isolates, and eight gene regions consis...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-02159-5
更新日期：2021-01-04 00:00:00
abstract：:Methanolic extract of Artemisia pallens (MEAP) (Asteraceae) was explored as greenbiocorrosion inhibitor for mild steel 1010 in 1.5% sodium chloride environment. Bacillus megaterium SKR7 induces the development of biofilm on the metal surface and forms the pitting corrosion. MEAP was showed (25 ppm) optimum inhibition ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-01951-7
更新日期：2020-10-01 00:00:00
abstract：:Bacillus thuringiensis (Bt) is efficient, strongly specific, and avirulent to humans, making it one of the most popular biopesticides in the world. Bt LLP29 is a mosquitocidal strain that was first isolated from Magnolia denudata. To understand its molecular mechanism against mosquitoes, the genome of Bt LLP29 was seq...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-01875-2
更新日期：2020-09-01 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：:Oxalobacter formigenes (O. formigenes) is a nonpathogenic, Gram-negative, obligate anaerobic bacterium that commonly inhabits the human gut and degrades oxalate as its major energy and carbon source. Results from a case-controlled study suggested that lack of O. formigenes colonization is a risk factor for recurrent c...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1272-y
更新日期：2016-12-01 00:00:00
abstract：:The histidine protein kinase SppK is a peptide pheromone-activated kinase that regulates the production of the bacteriocin sakacin P in Lactobacillus sakei. SppK belongs to subfamily 10 of histidine protein kinases (HPKs), which regulate important processes in Gram-positive bacteria, including virulence, competence an...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-005-0049-5
更新日期：2006-01-01 00:00:00
abstract：:For the low molecular weight laccases II and III of Podospora anserina the kinetic parameters Michaelis constant (KM) and maximum reaction velocity (V) were determined polarographically under pH optimum conditions for representative substrates of different substitution patterns. Laccase II showed two peaks in its pH o...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00446663
更新日期：1977-02-04 00:00:00
abstract：:A triazine dye, Cibacron blue 3G-A (CB), is an inhibitor of cell separation of staphylococcal spp. therefore, we examined the effect of CB on growth of gram-positive bacteria other than Staphylococcus. CB added to the medium of growing cultures of strains of genus Micrococcus, Streptococcus, Lactobacillus and Bacillus...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00248617
更新日期：1991-01-01 00:00:00
abstract：:Endophytic bacteria have been reported to have symbiotic, mutualistic, commensalistic or trophobiotic relationships with various plant parts. As part of its adaptation, many endophytic organisms are known to exhibit properties with multiple beneficial effects to the plant system. Even though many bacterial genera have...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-01911-1
更新日期：2020-09-01 00:00:00
abstract：:Recent studies indicated that bioluminescence of the marine bacterium Vibrio harveyi may both stimulate DNA repair and contribute to detoxification of deleterious oxygen derivatives. Therefore, it was also proposed that these reactions can be considered biological roles of bacterial luminescence and might act as evolu...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-005-0764-y
更新日期：2005-03-01 00:00:00
abstract：:Aspergillus nidulans is able to grow on oleic acid as sole carbon source. Characterization of the oleate-induced beta-oxidation pathway showed the presence of the two enzyme activities involved in the first step of this catabolic system: acyl-CoA oxidase and acyl-CoA dehydrogenase. After isopicnic centrifugation in a ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050392
更新日期：1996-11-01 00:00:00
abstract：:The molecular weight of the protein moiety of a phospholipoprotein complex isolated from Pseudomonas facilis has been examined with a variety of sodium dodecylsulfate-polyacrylamide gel electrophoretic systems. A molecular weight of 35 000 was determined for the protein in all analyses. A 35 000-dalton protein was pre...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00427842
更新日期：1977-10-24 00:00:00
abstract：:A novel thermotolerant strain of the achlorophyllous micro-alga Prototheca was isolated from a hot spring. The isolate was found to produce an appreciable amount of ethanol and CO2 from glucose under anoxic conditions at both 25 and 40 degrees C; this type of alcohol fermentation has not yet been reported in the genus...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-001-0384-0
更新日期：2002-03-01 00:00:00
abstract：:The gut microbiota inhabits the animal intestinal tract, and dysbiosis of the gut microbiota may result in disease. Senecio scandens has pharmaceutical antibacterial activities and is regarded as a broad-spectrum antibiotic in traditional Chinese medicine. Extracts of S. scandens are reported to show strong antimicrob...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-02144-y
更新日期：2021-01-04 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：:Monoclonal antibodies have been used to determine the presence of cellobiohydrolases I and II (CBH I and II), and endoglucanase I (EG I) on the surface of conidia from Trichoderma reesei QM 9414 and RUT C-30, and 8 other Trichoderma species. For this purpose, proteins were released from the conidial surface by treatme...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00245356
更新日期：1991-01-01 00:00:00
abstract：:Purified flagellar filaments isolated from six methanogens were composed of multiple flagellins. Two flagellins were present in Methanococcus deltae (Mr = 34,000 and 32,000), Methanoculleus marisnigri (Mr = 31,000 and 25,500) and Methanococcus jannaschii (Mr = 31,000 and 27,500), three in Methanothermus fervidus (Mr =...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00276766
更新日期：1992-01-01 00:00:00
abstract：:Periodontal diseases are infectious polymicrobial inflammatory diseases that lead to destruction of the periodontal ligament, gingiva, and alveolar bone. Sequential colonization of a broad range of bacteria, including Fusobacterium nucleatum and Porphyromonas gingivalis, is an important phenomenon in this disease mode...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1223-7
更新日期：2016-08-01 00:00:00
abstract：:Inorganic polyphosphate (iPoP)-linear chains of up to hundreds of phosphate residues-is ubiquitous in nature and appears to be involved in many different cellular processes. In Saccharomyces cerevisiae, iPoP has been detected in high concentrations, especially after transfer of phosphate-deprived cells to a high-phosp...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-005-0031-2
更新日期：2005-11-01 00:00:00
abstract：:Chemical mutagenesis of the nucleotide-producing strain Corynebacterium ammoniagenes ATCC 6872 with N-methyl-N-nitro-N-nitrosoguanidine followed by an enrichment protocol yielded 46 temperature-sensitive (ts) clones. A rapid assay for the allosterically regulated Mn-ribonucleotide reductase (RRase) was developed with ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050450
更新日期：1997-05-01 00:00:00
abstract：:Chemoautotrophic endosymbionts residing in Solemya velum gills provide this shallow water clam with most of its nutritional requirements. The cbb gene cluster of the S. velum symbiont, including cbbL and cbbS, which encode the large and small subunits of the carbon-fixing enzyme ribulose 1,5-bisphosphate carboxylase/o...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-004-0689-x
更新日期：2004-09-01 00:00:00
abstract：:Lactic acid bacteria can be considered as natural biopreservative and good biotechnological alternative to food safety. In this study, the antilisterial compounds produced by Enterococcus isolates from the Patagonian environment and their effectiveness for the control of Listeria monocytogenes in a food model were stu...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-02118-0
更新日期：2021-01-02 00:00:00
abstract：:Two genes, aphE and orf, coding for putative Mr 29,000 and Mr 31,000, proteins respectively, were identified in the nucleotide sequence of a 2.8 kbp DNA segment cloned from Streptomyces griseus N2-3-11. The aphE gene expressed streptomycin (SM) resistance and a SM phosphorylating enzyme in S. lividans strains. The two...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00425160
更新日期：1988-01-01 00:00:00
abstract：:Methanobacterium thermoautotrophicum growing on H2 plus CO2 as sole carbon and energy source was found to contain acetate thiokinase (Acetyl CoA synthetase; EC 6.2.1.1); Acetate + ATP + CoA leads to Acetyl CoA + AMP + PPi. The apparent Km value for acetate was 40 microM. Acetate kinase (EC 2.7.2.1) and phosphotransace...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00406167
更新日期：1980-12-01 00:00:00
