Abstract：
:Investigations of microbial diversity in Antarctic are important to begin to understand ecosystem functioning and decomposition processes. This study documents fungi at 9 historic sites on the Antarctic Peninsula collected from wooden structures, other organic materials, and soils during a joint National Science Foundation and British Antarctic Survey expedition in 2007. Many of these sites had wooden structures built by the British during the World War II Operation Tabarin, but others visited included the American "East Base" on Stonington Island and the Swedish hut on Snow Hill Island. Fungi were cultured on several different media and pure cultures were obtained and identified by DNA sequencing of the internal transcribed spacer region. Cadophora species previously found to attack historic wooden structures on Ross Island, Antarctica, were found at all but 1 location sampled in the Peninsula region. Fungi causing decay in the historic wooden structures and artifacts and those causing mold problems inside the structures are of great concern, and conservation efforts are urgently needed to help preserve these important polar heritage structures. The results presented also expand our knowledge on the identity of fungi present throughout the Antarctic Peninsula region and provide insights into the organisms responsible for decomposition and nutrient recycling.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Arenz BE,Blanchette RAdoi
10.1139/W08-120subject
Has Abstractpub_date
2009-01-01 00:00:00pages
46-56issue
1eissn
0008-4166issn
1480-3275pii
w08-120journal_volume
55pub_type
杂志文章abstract：:Yersinia pestis is a bacterium that is transmitted between fleas, which have a body temperature of 26 °C, and mammalian hosts, which have a body temperature of 37 °C. To adapt to the temperature shift, phenotype variations, including virulence, occur. In this study, an antigen microarray including 218 proteins of Y. p...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w11-007
更新日期：2011-04-01 00:00:00
abstract：:Two rod-shaped viruses of similar length occurring in hops were isolated from a mixed infection. One (hop mosaic virus) infected Nicotiana clevelandii, produced mosaic symptoms in mosaic-sensitive hop cultivars, and did not infect Chenopodium murale. The other (hop latent virus) infected C. murale but not N. cleveland...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-168
更新日期：1976-08-01 00:00:00
abstract：:Ten strains of Caldariomyces fumago and related fungi were found to produce extracellular chloroperoxidase when grown on a glucose - malt extract medium. High enzyme levels and pigment production were observed for C. fumago ATCC 16373 and C. fumago CMI 89362. Removal of malt extract from the medium and the replacement...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m81-199
更新日期：1981-12-01 00:00:00
abstract：:The techniques in current use for detection of pathogens in environmental samples are restricted to those organisms whose replication in either culture media or cell culture is feasible. These methods lack the selectivity and sensitivity necessary for their unequivocal detection and identification. We have developed a...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m92-062
更新日期：1992-05-01 00:00:00
abstract：:An intracellular invertase was induced in cultures of Clostridium pasteurianum utilizing sucrose as its carbon source for growth. This enzyme synthesis could be repressed by the addition of fructose of a sucrose-growing culture. In contrast, invertase activity was not affected by the addition of glucose to sucrose-gro...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m75-251
更新日期：1975-11-01 00:00:00
abstract：:A mesophilic anaerobe, a member of the Bacteroidaceae family (NRC2248), isolated from a cellulose-enrichment culture, digested untreated Whatman cellulose powder and HCl-treated cotton battings while producing hydrogen, carbon dioxide, cellobiose, glucose, and acetic acid as the sole volatile acid. This organism also ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m79-222
更新日期：1979-12-01 00:00:00
abstract：:Products obtained from the action of arylamine synthetase on [G-14C]chorismic acid were fractionated by gel filtration and ion exchange column chromatography to yield a partially purified radioactive component with an arylamine function. From its ultraviolet absorption spectrum and thin-layer chromatographic behaviour...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-032
更新日期：1976-02-01 00:00:00
abstract：:The antibacterial mechanism of a Cinnamomum cassia essential oil from Vietnam and of its main component (trans-cinnamaldehyde, 90% (m/m) of C. cassia essential oil) against a Listeria innocua strain was investigated to estimate their potential for food preservation. In the presence of C. cassia essential oil or trans-...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2014-0481
更新日期：2015-04-01 00:00:00
abstract：:The induction of nitrogenase (C2H2) activity in asymbiotically cultured Rhizobium sp. 32H1 was found to be associated with morphological changes in the cells which were more pronounced than those seen in bacteroids. Polyphosphate granules were found in both bacteroids and cultured cells, but poly-beta-hydroxybutyrate ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m79-055
更新日期：1979-03-01 00:00:00
abstract：:Effects of Trichoderma harzianum and T. polysporum on chlamydospore production by two isolates of Phytophthora cinamomi were determined over a 21-day period in nonsterile, sterilized, and sterilized amended soil. Trichoderma was either coinoculated with P. cinnamomi or added to the cultures on day 3 of the incubation ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m77-042
更新日期：1977-03-01 00:00:00
abstract：:Urease activity was measured using whole cells of both long (swarming) and short (nonswarming) populations of Proteus mirabilis from casein hydrolysate agar (CHA) and broth (CHB) cultures, and from brain heart infusion broth (BHIB) cultures. Urease is a constitutive enzyme for both long and short cells, but its activi...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m87-051
更新日期：1987-04-01 00:00:00
abstract：:The catalytic subunit of many Escherichia coli redox enzymes bares a twin-arginine translocation (Tat)-dependent signal peptide in its precursor, which directs the redox enzyme complex to this Sec-independent pathway. NarG of the E. coli nitrate reductase NarGHI complex possesses a vestige twin-arginine motif at its N...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w08-111
更新日期：2009-02-01 00:00:00
abstract：:Three distinct bacterial populations have been defined in the bovine rumen: the rumen fluid population; the population associated with food particles; and the population adherent to the rumen epithelium. Alkaline phosphatase activity has been reported in cells of the first two populations and here we report that assay...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m79-140
更新日期：1979-08-01 00:00:00
abstract：:Klebsiella pneumoniae was found to effect the reductive dechlorination of methoxychlor (2,2-bis(p-methoxyphenyl)-1, 1, 1-trichloroethane) and its dihydroxy derivative (2, 2-bis (p-hydroxyphenyl)-1, 1, 1-trichloroethane) to dichloro derivatives 2, 2-bis (p-methoxyphenyl)-1, 1-dichloroethane and 2, 2-bis (p-hydroxypheny...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m82-023
更新日期：1982-02-01 00:00:00
abstract：:A mercuric ion-reducing flavoprotein was purified from Yersinia enterocolitica 138A14 using dye matrix affinity chromatography. The purified enzyme had a characteristic absorption spectrum similar to those of flavin compounds, and FAD was detected as a part of the purified enzyme by thin-layer chromatography. Freshly ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m93-027
更新日期：1993-02-01 00:00:00
abstract：:Studies show that Paracoccus denitrificans can denitrify nitrogen sources under aerobic conditions. However, the lack of data on its genome sequence has restricted molecular studies and practical applications. In this study, the complete genome of P. denitrificans ATCC 19367 was sequenced and its nitrogen metabolism p...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2019-0037
更新日期：2019-07-01 00:00:00
abstract：:Biological nitrogen fixation (BNF) can be improved by optimizing the interaction between the rhizobial inoculant and pea (Pisum sativum L.), leading to increased productivity and reduced nitrogen (N) fertilizer use. Eight Rhizobium leguminosarum bv. viciae strains were used to inoculate the super-nodulating pea mutant...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2017-0281
更新日期：2017-11-01 00:00:00
abstract：:Examination of immune complexes between cells of Streptococcus mutans and homologous antiserum by the techniques of thin-sectioning and freeze-etching revealed that the cells were embedded within and extensive matrix 80-90 nm thick with defined boundaries. ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-129
更新日期：1976-06-01 00:00:00
abstract：:From electron-microscopical observations, a decreased metabolic activity in 3-day-old Candida albicans chlamydospores was suggested, and progressive deterioration in chlamydospores aged 2-8 months was shown. Oxygen utilization by chlamydospore-pseudomycelium (CSP) preparations was less than that by yeast, while 3-day-...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m79-111
更新日期：1979-06-01 00:00:00
abstract：:The aim of this study was to determine possible differences in the faecal microbiota of dairy cows infected with Mycobacterium avium subsp. paratuberculosis (Johne's disease) in comparison with noninfected cows from the same herds. Faecal samples from cows in 4 herds were tested for M. avium subsp. paratuberculosis by...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2015-0814
更新日期：2016-06-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w09-018
更新日期：2009-06-01 00:00:00
abstract：:HPr is a protein of the phosphoenolpyruvate:sugar phosphotransferase transport system (PTS). In gram-positive bacteria, HPr can be phosphorylated on Ser-46 by the kinase/phosphorylase HprK/P and on His-15 by phospho-enzyme I (EI~P) of the PTS. In vitro studies with purified HPrs from Bacillus subtilis, Enterococcus fa...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w08-085
更新日期：2008-11-01 00:00:00
abstract：:Mucor alternans(van Tieghem) was found to be a diphasic species in that it grew exclusively in the yeast-like budding phase under anaerobic conditions in the complex medium yeast extract-peptone-glucose broth and in tissue-culture medium 199. In the latter medium this growth form occurred also at 37C, at an initial pH...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m75-010
更新日期：1975-01-01 00:00:00
abstract：:Menadione reductase (EC 1.6.99.2) has been purified 67-fold from Clostridium tyrobutyricum extracts. The molecular weight was found to be 60 000 and the prosthetic group was identified as FMN on the basis of the enzymatic analysis data. The binding of FMN to the menadione dehydrogenase apoenzyme was relatively weak wi...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m80-053
更新日期：1980-03-01 00:00:00
abstract：:Mutants of Salmonella typhimurium with defects in the heptose region of the lipopolysaccharide (LPS) molecule (heptose-deficient, chemotype Re) leak periplasmic enzymes (acid phosphatase (EC 3.1.3.2), cyclic phosphodiesterase, ribonuclease I (EC 3.1.4.22), and phosphoglucose isomerase (EC 5.3.1.9) (PGI is at least par...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-227
更新日期：1976-10-01 00:00:00
abstract：:This study, the first of arbovirus activity in Prince Edward Island, has shown antibodies to the snowshoe hare strain of the California encephalitis group virus to be present in sera of wild and domestic animals; 15.35% of snowshoe hare, 20% of equine. and 2.5% of bovine sera were positive for hemagglutination inhibit...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m81-188
更新日期：1981-11-01 00:00:00
abstract：:Fine hair-like appendages on the cell walls of the another smut Ustilago violacea are described. These hairs are termed fimbriae because of their close similarity to the fimbriae (pili) found on certain Gram-negative bacteria. Cells of U. violacea may carry more than 200 fimbriae varying in length from about 0.5 mum t...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m75-076
更新日期：1975-04-01 00:00:00
abstract：:Antibiotic susceptibility tests and restriction enzyme analysis (REA) of genomic DNA were performed to characterize the relationship between sources of isolates of yellow-pigmented enterococci. Antibiotic susceptibility tests were conducted with 10 therapeutic antibiotics and 54 isolates grouped by source (wild and ot...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-44-11-1066
更新日期：1998-11-01 00:00:00
abstract：:We examined isolates from 4 commercial bioinsecticides based on different strains of Bacillus thuringiensis subspecies (kurstaki, israelensis, aizawai, and tenebrionis) for the presence of genes encoding proteins with known enterotoxigenicity (nhe, hbl, cytk, ces) and various other putative virulence genes (piplc, sph...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/W07-106
更新日期：2007-12-01 00:00:00
abstract：:Dermatophytes are a group of fungi that are capable of invading keratinized tissues of humans and other animals. Antifungal susceptibility analysis and genetic studies by random amplification of polymorphic DNA (RAPD), have been used to detect polymorphism as well as determining the possible resistance of dermatophyte...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w05-024
更新日期：2005-06-01 00:00:00
