Abstract:
:Dunaliella tertiolecta (marine) and D. viridis (halophilic) were each trained by serial transfer to grow at salt concentrations previously regarded as the other's domain. D. viridis then had a salt optimum at 1.0-1.5 M sodium chloride whereas that for D. tertiolecta was less than 0-2 M. Nevertheless D. tertiolecta grew faster than the halophil at all salt concentrations up to 3.5 M, the highest at which they were compared. Both species accumulate glycerol, which is necessary for growth at elevated salinities and which responds in its content to water activity (aw) rather than specifically to salt concentration. Variation in glycerol content is a metabolic process which occurs in the dark from accumulated starch as well as photosynthetically. Regulation of glycerol content by aw does not require protein synthesis. The NADP-specific glycerol dehydrogenase of each of the algae is likely to be directly involved in the regulation of glycerol content. Kinetic studies, together with those described in an earlier publication, show that the enzyme has regulatory properties and that both glycerol and dihydroxyacetone act as effectors as well as reactants. A mechanism of the reaction is tentatively proposed.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Borowitzka LJ,Kessly DS,Brown ADdoi
10.1007/BF00428592subject
Has Abstractpub_date
1977-05-13 00:00:00pages
131-8issue
1-2eissn
0302-8933issn
1432-072Xjournal_volume
113pub_type
杂志文章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::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::Lipase is an important commercial enzyme with unique and versatile biotechnological applications. This study was conducted to biosynthesize and characterizes alkaliphilic lipase by Exiguobacterium sp. strain AMBL-20T isolated from the glacial water samples of the northeastern (Gilgit-Baltistan) region of Pakistan. The...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-020-02133-1
更新日期:2020-12-15 00:00:00
abstract::Carotenogenic mutants of Corynebacterium glutamicum were analyzed for their carotenoid content. Mutant MV10 accumulated the same carotenoids as the wild-type, decaprenoxanthin, decaprenoxanthin monoglucoside, and (2R,6R,2'R,6'R)-decaprenoxanthin di-(beta-D)-glucoside, but in three-fold higher amounts. In addition, dec...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030100315
更新日期:2001-09-01 00:00:00
abstract::Edwardsiella tarda (E. tarda) is distributed widely in a variety of hosts including humans, other mammals and fish, and it is worthwhile to notice that E. tarda -caused fish infections lead to the most important bacterial disease in fish. Considering Eha acting as a transcriptional regulator in E. tarda strain ET13 ha...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-019-01794-x
更新日期:2020-05-01 00:00:00
abstract::The diversity of eukaryotic populations, in particular protozoa, in the water supplies of intensively reared broilers has not been previously studied. This important food-rearing environment was screened for the molecular diversity of eukaryotes by the analysis of PCR-amplified 18S rRNA. DNA was extracted from filtere...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-006-0119-3
更新日期:2006-07-01 00:00:00
abstract::Aquaspirillum magnetotacticum MS-1 cells cultured microaerobically (dissolved O2 tension 1% of saturation), expressed proteins with superoxide dismutase (SOD) activity. The majority (roughly 95%) of total cell superoxide dismutase activity was located in the cell periplasm with little or no activity in the cell cytopl...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00425171
更新日期:1989-01-01 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::A Gram-stain-negative, aerobic, non-motile and yellow-colored bacterium, strain 17J57-3 T, was isolated from soil collected in Pyeongchang city, Korea. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain 17J57-3 T formed a distinct lineage within the family Oxalobacteraceae (order Burkholderial...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-020-02076-7
更新日期:2020-10-15 00:00:00
abstract::The presence of one periplasmic [NiFe] hydrogenase, one periplasmic [Fe] hydrogenase, and one cytoplasmic NADP-reducing hydrogenase has been previously established in Desulfovibrio fructosovorans. In the present work, marker-exchange mutagenesis was performed to determine the function of the tetrameric NADP-reducing h...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030050414
更新日期:1997-01-01 00:00:00
abstract::Ostracods collected from shallow coral reefs in the Bahamas were found to exhibit blue light-stimulated orange fluorescence at night. Fluorescent spectra revealed the presence of orange fluorescence with a maximum emission at ~595 nm on the carapace of these ostracods, while scanning electron microscopy revealed a mor...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-013-0911-9
更新日期:2013-09-01 00:00:00
abstract::Serine/threonine protein kinases (STPK) play a major role in the physiology and pathogenesis of Mycobacterium tuberculosis. Here, we have examined the role of pknE, a STPK in the adaptive responses of M. tuberculosis using a deletion mutant ΔpknE. The survival of ΔpknE was assessed in the presence of stress (pH, surfa...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-012-0848-4
更新日期:2013-01-01 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::The determination of enzymatic activities in cell-free extracts of Acidaminococcus fermentans and Peptostreptococcus asaccharolyticus led to a refined scheme for the pathway of glutamate fermentation via (R)-2-hydroxyglutarate to acetate and butyrate. From the ratio of these products the amount of ATP generated by sub...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00447055
更新日期:1985-07-01 00:00:00
abstract::Pseudomonas cepacia grew rapidly using a mixture of all three branched chain amino acids as carbon source, but failed to use individual branched chain amino acids as sole carbon source. Extracts of bacteria grown on branched chain amino acids had between 2- and 3-fold higher levels of alpha-ketoglutarate-dependent bra...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00423069
更新日期:1979-03-12 00:00:00
abstract::Nodules collected from Alnus nepalensis growing in mixed forest stands at three different sites around Shillong, were crushed in various culture media to obtain isolates of Frankia. The isolates were found to have typical Frankia morphology as revealed by the scanning electron microscope. Seedlings inoculated with iso...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00276476
更新日期:1994-01-01 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::An anaerobic, mesophilic, syntrophic benzoate-degrading bacterium, designated strain FB(T), was isolated from methanogenic sludge which had been used to treat wastewater from the manufacture of terephthalic acid. Cells were non-motile gram-positive rods that formed spores. The optimum temperature for growth was 35-40 ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-003-0521-z
更新日期:2003-04-01 00:00:00
abstract::Nitrogen (N) is among the most important macro-nutrients significantly affecting plant growth and yield production. Accordingly, N must be supplied adequately so that optimum amounts of yield are resulted. There are different ways of supplying N to the plant including the use of chemical and biological fertilization. ...
journal_title:Archives of microbiology
pub_type: 杂志文章,评审
doi:10.1007/s00203-010-0657-6
更新日期:2011-02-01 00:00:00
abstract::Citrobacter rodentium (Cr) is a mouse pathogen that mimics many aspects of enteropathogenic Escherichia coli infections including producing attaching and effacing (A/E) lesions. Host-adapted (HA) Cr cells that are shed at the peak of infection have been reported to be hyper-infective. The exact mechanism underlying th...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-016-1191-y
更新日期:2016-05-01 00:00:00
abstract::Utilization of D-amino acids being substrates of D-amino acid dehydrogenase of Salmonella typhimurium was examined. The experiments were done with wild type strains and the mutants dadA missing the enzyme activity and dadR in which its synthesis is released from catabolite repression. Growth on D-tryptophan, D-histidi...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00406077
更新日期:1978-07-01 00:00:00
abstract::Pandoraea sp. strain MCB032 was isolated as an emerging chlorobenzene degrader from a functionally stable bioreactor where species succession had occurred. In this study, two gene clusters encoding chlorobenzene metabolic functions have been cloned. Within the cbs gene cluster, CbsA and CbsB are similar to the chlorob...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-009-0476-9
更新日期:2009-06-01 00:00:00
abstract::The methanotrophic bacterium Methylomicrobium album BG8 uses methane as a sole source of carbon and energy. This bacterium forms an extensive intracytoplasmic membrane. The first enzymes of the methane oxidation pathway are the membrane-bound particulate methane monooxygenase and the periplasmic methanol dehydrogenase...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-002-0426-2
更新日期:2002-07-01 00:00:00
abstract::Acanthamoeba castellanii is a free-living amoeba found mainly in humid environments and Arcobacter butzleri is an emerging zoonotic pathogen, both can establish in vitro endosymbiotic relationships in the absence of bacterial replication. We analyzed the localization of A. butzleri within A. castellanii establishing t...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-019-01699-9
更新日期:2019-12-01 00:00:00
abstract::The mitochondrial genome (mtDNA) of the entomopathogenic fungus Metarhizium anisopliae var. anisopliae, with a total size of 24,673 bp, was one of the smallest known mtDNAs of Pezizomycotina. It contained the 14 typical genes coding for proteins related to oxidative phosphorylation, the two rRNA genes, a single intron...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-006-0104-x
更新日期:2006-06-01 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::The induction by D,L-nicotine of the enantiozymes 6-hydroxy-L-nicotine oxidase and 6-hydroxy-D-nicotine oxidase in Arthrobacter oxidans was differently affected by the inhibitors of Escherichia coli gyrase, novobiocin and nalidixic acid. These compounds inhibited 6-hydroxy-L-nicotine oxidase induction slightly, but le...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00521289
更新日期:1982-12-03 00:00:00
abstract::Over 2,800 Tn 5 insertion mutants of Salmonella enterica sv. Typhimurium were screened for the loss of ability to suppress the multiplication of a spectinomycin-resistant (Spc(r)) but otherwise isogenic S. enterica sv. Typhimurium strain, when the Spc(r) mutant was added to 24-h LB broth cultures of the mutants. Selec...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-002-0458-7
更新日期:2002-12-01 00:00:00
abstract::YfkE, a protein from Bacillus subtilis, exhibits homology to the Ca(2+):Cation Antiporter (CaCA) Family. In a fluorescence-based assay of everted membrane vesicles prepared from Na(+)(Ca(2+))/H(+) antiporter-defective mutant Escherichia coli KNabc, YfkE exhibited robust Ca(2+)/H(+) antiport activity, with a K (m) for ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-009-0494-7
更新日期:2009-08-01 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