Abstract:
:Plasmid-borne hup-lacZ transcriptional fusion constructs were introduced into three separate mutant strains of Bradyrhizobium japonicum which express hydrogenase constitutively (Hupc strains SR470, SR473 and JH101) in both autotrophic and heterotrophic environments. The lacZ structural gene linked directly to the regulatory region upstream of the hydrogenase structural gene encompassing -149 bases expressed beta-gal at a constant, high level, in response to various concentrations of Ni (0 microM to 1 microM). beta-Gal activity was expressed at a constant level in response to variations in concentration of O2 (0%-10%) and H2 (0%-10%) as well. The cis-acting region required to express hydrogenase constitutively is located between -149 and -98 bases. This is also the site of nickel, oxygen and hydrogen-dependent regulatory action in the wild-type strain. It is postulated that a single mutation in Hupc strains affects the trans-acting factor which would normally by responsive to Ni, O2 and H2.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Kim H,Gabel C,Maier RJdoi
10.1007/BF00258144subject
Has Abstractpub_date
1993-01-01 00:00:00pages
43-50issue
1eissn
0302-8933issn
1432-072Xjournal_volume
160pub_type
杂志文章abstract::A novel Gram-negative rod, endophytic bacterium, designated strain TMCC 8258T, was isolated from the root of Camellia sinensis collected from Puer, south-west China. Comparative 16S rRNA gene sequence analysis showed that the strain belongs to the family Sphingobacteriaceae and a neighbour-joining phylogenetic tree su...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-017-1391-0
更新日期:2017-11-01 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
pub_type: 杂志文章
doi:10.1007/s00203-007-0227-8
更新日期:2007-08-01 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
pub_type: 杂志文章
doi:10.1007/s002030100350
更新日期:2001-12-01 00:00:00
abstract::The present study investigated the endophytic bacterial communities in the seeds of mature, natural common reed (Phragmites australis) and narrowleaf cattail (Typha angustifolia L.). Additionally, seed endophytic bacterial communities were compared with rhizospheric and root endophytic bacterial communities using Illu...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-018-1493-3
更新日期:2018-08-01 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::Growth kinetics of a Vero cells adapted Bangladeshi strain of peste des petits ruminants virus was studied in Vero cells to determine maximum virus yield. One-step growth curve was formulated after determining virus in both supernatant (CFV) and cell lysate (CAV) at different time categories by microtitre plate titrat...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-020-02154-w
更新日期:2021-01-05 00:00:00
abstract::CO2 is required continuously during germination of Streptomyces viridochromogenes spores. Spores incubated in a defined germination medium in the absence of CO2 remain phase bright and do not release spore carbon. In the presence of CO2, the spores initiate germination accompanied by loss of refractility and spore car...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00429118
更新日期:1978-09-01 00:00:00
abstract::Coagulase-negative staphylococci (CNS) are opportunistic pathogens that are currently emerging as causative agents of human disease. Though CNS are widespread in the clinic and food, their precise identification at species level is important. Here, using 16S rRNA sequencing, 55 staphylococcal isolates were identified ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-017-1415-9
更新日期:2018-01-01 00:00:00
abstract::Halometabolites are compounds that are commonly found in nature and they are produced by many different organisms. Whereas bromometabolites can mainly be found in the marine environment, chlorometabolites are predominately produced by terrestrial organisms; iodo- and fluorocompounds are only produced infrequently. The...
journal_title:Archives of microbiology
pub_type: 杂志文章,评审
doi:10.1007/s002030100263
更新日期:2001-04-01 00:00:00
abstract::Recently, a unique archaeal/bacterial community that grows in a macroscopically visible string-of-pearls-like structure in cold (~10 degrees C), sulfurous marsh water was discovered. Here, a new technique is described that allows the fast and reliable growth of these string-of-pearls-like microbial communities in larg...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-003-0580-1
更新日期:2003-09-01 00:00:00
abstract::Microorganisms have evolved themselves to thrive under various extreme environmental conditions such as extremely high or low temperature, alkalinity, and salinity. These microorganisms adapted several metabolic processes to survive and reproduce efficiently under such extreme environments. As the major proportion of ...
journal_title:Archives of microbiology
pub_type: 杂志文章,评审
doi:10.1007/s00203-018-1602-3
更新日期:2019-01-01 00:00:00
abstract::The activities of NAD+-photoreduction and NADH/decyl-ubiquinone reductase in membrane preparations of Rhodobacter capsulatus changed to the same extent under different conditions. These results indicated that NADH:ubiquinone oxidoreductase (complex I) catalyzes the electron transport in the downhill direction (respira...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030050548
更新日期:1998-02-01 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
pub_type: 杂志文章
doi:10.1007/BF00690235
更新日期:1976-11-02 00:00:00
abstract::A LD-carboxypeptidase from Escherichia coli K 12 was isolated by Tris-EDTA treatment and purified to electrophoretic homogeneity by DEAE-cellulose chromatography. The enzyme has a molecular weight of approximately 12,000 as determined by sodium dodecyl sulfate-polyacrylamide electrophoresis and by Sephadex G-100 gel f...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00414732
更新日期:1986-03-01 00:00:00
abstract::Geobacter species such as G. bremensis, G. pelophilus, and G. sulfurreducens are obligately anaerobic and grow in anoxic, non-reduced medium by fast reduction of soluble ferric citrate. In contrast, insoluble ferrihydrite was either only slowly or not reduced when supplied as electron acceptor in similar growth experi...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-004-0686-0
更新日期:2004-10-01 00:00:00
abstract::Chloroquine inhibited the outgrowth of Bacillus subtilis spores at a 10-fold lower concentration than that required to prevent vegetative growth. Analysis of macromolecular synthesis in outgrowing spores and vegetative cells in the presence of chloroquine indicated that it acted preferentially on transcription. Differ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00409659
更新日期:1989-01-01 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::Recently, it was proposed that some antibiotics stimulate the production of reactive oxygen species (ROS), which contribute to cell death. Later, other research groups have provided arguments against ROS-mediated killing of bacteria by antibiotics. At present, there remain a number of unanswered questions in understan...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-016-1247-z
更新日期:2016-11-01 00:00:00
abstract::Flow cytometry (FCM) in conjunction with immunocytochemical-labeling was used to analyze and screen a population of Escherichia coli clones containing a genomic library from the oil-degrading microorganism Acinetobacter calcoaceticus RAG-1 surface antigens. Reconstruction experiments using mixed populations indicated ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00422282
更新日期:1988-01-01 00:00:00
abstract::Cell free extracts prepared from exponentially growing Escherichia coli and Bacillus cereus as well as from Bacillus cereus at the end of exponential growth were optimized for various factors required for amino acid incorporation when programmed with Bacillus ribonucleic acid. All three preparations synthesized glutam...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00455354
更新日期:1981-04-01 00:00:00
abstract::Photosynthetic, nitrogen-fixing Anabaena strains play an important role in the carbon and nitrogen cycles in tropical paddy fields although they are salt sensitive. Improvement in salt tolerance of Anabaena cells by expressing glycine betaine-synthesizing genes is an interesting subject. Due to the absence of choline ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-012-0824-z
更新日期:2012-11-01 00:00:00
abstract::Virulence factors of H. pylori, such as outer inflammatory protein A (oipA), are closely involved in the development of gastric diseases such as chronic gastritis and gastric cancer. The functional status of oipA is regulated by a repair mechanism based on CT dinucleotide repeats that influence the reading frame, thus...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-018-1580-5
更新日期:2019-01-01 00:00:00
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
pub_type: 杂志文章
doi:10.1007/BF00411361
更新日期:1979-08-06 00:00:00
abstract::The functional pmoA gene is frequently used to probe the diversity and phylogeny of methane-oxidizing bacteria (MOB) in various environments. Here, we compared the similarities between the pmoA gene and the corresponding 16S rRNA gene sequences of 77 described species covering gamma- and alphaproteobacterial methanotr...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-016-1222-8
更新日期:2016-09-01 00:00:00
abstract::An unidentified filamentous purple bacterium, probably belonging to a new genus or even a new family, is found in close association with the filamentous, mat-forming cyanobacterium Microcoleus chthonoplastes in a hypersaline pond at Guerrero Negro, Baja California Sur, Mexico, and in Solar Lake, Sinai, Egypt. This or...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00463477
更新日期:1987-01-01 00:00:00
abstract::Polyaromatic hydrocarbons (PAHs) are considered as hazardous organic priority pollutants. PAHs have immense public concern and critical environmental challenge around the globe due to their toxic, carcinogenic, and mutagenic properties, and their ubiquitous distribution, recalcitrance as well as persistence in environ...
journal_title:Archives of microbiology
pub_type: 杂志文章,评审
doi:10.1007/s00203-020-01929-5
更新日期:2020-10-01 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::The evolutionarily conserved serine/threonine kinase TOR recruits different subunits to assemble the Target of Rapamycin Complex 1 (TORC1), which is inhibited by rapamycin and regulates ribosome biogenesis, autophagy, and lipid metabolism by regulating the expression of lipogenic genes. In addition, TORC1 participates...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-020-01833-y
更新日期:2020-07-01 00:00:00
abstract::Differences in the rumen bacterial community have been previously reported for Soay sheep housed under different day length conditions. This study extends this previous investigation to other organs of the digestive tract, as well as the analysis of ciliated protozoa and anaerobic fungi. The detectable concentrations ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-019-01652-w
更新日期:2019-09-01 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