Abstract：
:Increasing the use of nitrogen fertilizers in tea orchards has led to intense nitrous oxide (N2O) emissions. Foliar application of Paenibacillus polymyxa biofertilizer has been proven to be beneficial for organic tea production. In this study, tea yield and quality were significantly improved after application of P. polymyxa biofertilizer compared with the control but were not significantly different from chemical fertilizer treatments. However, the average N2O fluxes in tea fields treated with chemical fertilizers and biofertilizers (225 kg N·ha-1·year-1 for both) were 50.6-973.7 and 0.6-29.1 times higher than those in the control treatment, respectively. Pot experiments conducted to explore the mechanism of N2O reduction induced by P. polymyxa biofertilizer showed that applying P. polymyxa in addition to urea could reduce N2O fluxes by 36.5%-73.1%. Quantitative PCR analysis suggested that a significant increase in the quantity of nirK and nosZ genes was linked to the reduction of N2O, and high-throughput sequencing of nosZ revealed active and potentially efficient denitrifiers in different treatments. Our findings suggest that P. polymyxa biofertilizer is in line with the requirements of modern agriculture, which aims to increase product yield and quality while reducing negative environmental impacts.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Zhou S,Zeng X,Xu Z,Bai Z,Xu S,Jiang C,Zhuang G,Xu Sdoi
10.1139/cjm-2019-0511subject
Has Abstractpub_date
2020-03-01 00:00:00pages
214-227issue
3eissn
0008-4166issn
1480-3275journal_volume
66pub_type
杂志文章abstract：:Culture-independent, biomarker-targeted bacterial enumeration and identification strategies were employed to estimate total bacterial burden and diversity within the cabin air of commercial airliners. Samples from each of 4 flights on 2 commercial carriers were collected via air-impingement. The total viable microbial...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/W07-093
更新日期：2007-11-01 00:00:00
abstract：:Numbers of viable bacteria as indicated by colony-forming units (CFU), microbial adenosine triphosphate levels, dissolved organic carbon (DOC), particulate organic carbon and nitrogen (POC and PON), glucose concentration, heterotrophic potential (Vmax), and in situ heterotrophic activity (Vn) of near-surface microlaye...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-251
更新日期：1976-12-01 00:00:00
abstract：:Phialocephala fortinii is a dark septate fungal endophyte that colonizes roots of many host species. Its effect on plant growth varies from being pathogenic to beneficial. The basic biology of this species has received little research, and thus the main objectives of this study were to determine cytological features o...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w06-018
更新日期：2006-07-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章,评审
doi：10.1139/cjm-2018-0435
更新日期：2019-06-01 00:00:00
abstract：:Guanidine-resistant (gr) mutants of poliovirus were previously categorized into four groups by electrophoretic properties and peptide maps of nonstructural virus protein 2C. Growth of mutants in the presence of guanidine depends upon temperature of incubation. The four groups of gr variants respond differently to temp...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m85-220
更新日期：1985-12-01 00:00:00
abstract：:Saccharomyces cerevisiae is a good model with which to study the effects of morphologic differentiation on the ecological behaviour of fungi. In this work, 33 morphologic mutants of a natural strain of S. cerevisiae, obtained with UV mutagenesis, were selected for their streak shape and cell shape on rich medium. Two ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/W06-132
更新日期：2007-02-01 00:00:00
abstract：:The results of sucrose-density-gradient centrifugation of a cell-free particulate enzyme system from Acetobacter xylinum which was incubated with uridine diphosphoglucose indicate that there is a polymeric intermediate in the biosynthesis of cellulose. This intermediate has the properties of an oligomer of glucose, is...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m75-018
更新日期：1975-02-01 00:00:00
abstract：:Clinical isolates of Staphylococcus aureus were found to exhibit strain-specific heterogeneity to the growth-enhancing effects of human urokinase (UK), a proteinase with plasminogen activator activity. Nine out of fourteen (64%) methicillin-sensitive strains of S. aureus were responsive to UK in "in vitro" cultures. I...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m96-131
更新日期：1996-10-01 00:00:00
abstract：:The effect of fructans on the cultivable faecal community of Bio Breeding rats fed diets containing 5% (m/v) food-grade fructooligosaccharide (FOS) was investigated. Culturing of faecal material using chicory inulin as the sole carbohydrate source revealed the presence of a greater diversity of inulin-utilizing bacter...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w06-053
更新日期：2006-10-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m79-113
更新日期：1979-06-01 00:00:00
abstract：:Brachiaria, predominantly an African genus, contains species, such as B. brizantha, an apomictic C4 grass, that are commercially important forage grasses in tropical America, where they now cover about 55 million hectares. From B. brizantha accession CIAT 6780, we isolated an endophytic fungus that may be economically...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w00-127
更新日期：2001-01-01 00:00:00
abstract：:In Escherichia coli, the N-terminal domain of the essential protein FtsK (FtsKN) is proposed to modulate septum formation through the formation of dynamic and essential protein interactions with both the Z-ring and late-stage division machinery. Using genomic mutagenesis, complementation analysis, and in vitro pull-do...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2019-0493
更新日期：2020-04-01 00:00:00
abstract：:The oligosaccharides of human lactoferrin were enzymatically removed with glycopeptidase F, resulting in a preparation containing partial and fully deglycosylated human lactoferrin. The derivatives were separated by Concanavalin A affinity chromatography and compared with native human lactoferrin with respect to their...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m92-198
更新日期：1992-11-01 00:00:00
abstract：:The presence of subtilase-cytotoxin-encoding genes was determined in 397 environmental Escherichia coli strains isolated from water, suspended solids, and sediments sampled from different hydrological and environmental conditions in a California estuary. A total of 7 strains (1.76%) were found to harbor subtilase-cyto...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2012-0606
更新日期：2013-06-01 00:00:00
abstract：:Staphylococcus aureus isolated from the cervix of an infertile woman was found to cause complete immobilization of human spermatozoa in vitro. Only the cell culture and cell-free supernatant showed immobilization activity, indicating that the sperm immobilization factor might be released extracellularly by the organis...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w09-032
更新日期：2009-07-01 00:00:00
abstract：:Listeria grayi is a nonpathogenic Gram-positive bacterium that demonstrates considerable similarities to other members in the genus Listeria, including the foodborne human pathogen Listeria monocytogenes and the animal pathogen Listeria ivanovii. A rapid diagnostic test to identify and diagnose listeriosis would be va...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w04-108
更新日期：2005-01-01 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：:Microsclerotia of three melanin-deficient mutants of Verticillium dahliae formed malanin from (+)-scytalone, 1,8-dihydroxynaphthalene, catechol, and L-3,4-dihydroxyphenylalanine. The melanins formed from (+)-scytalone or 1,8-dihydroxynaphthalene resembled wild-type melanin chemically and ultrastructurally, whereas the...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m78-049
更新日期：1978-03-01 00:00:00
abstract：:Bacteria are known to rapidly produce new phenotypes, but it is unclear how phenotype "plasticity" relates to studies on the population ecology of bacteria in complex environments. We characterised a collection of 14 spontaneous phenotype variants, derived from in vitro and in vivo cultures (wheat roots) of Pseudomona...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w99-006
更新日期：1999-04-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m81-038
更新日期：1981-02-01 00:00:00
abstract：:The Bacillus subtilis glutamyl-tRNA synthetase (GluRS), encoded by the gltX gene, aminoacylates its homologous tRNA(Glu) and tRNA(Gln) with glutamate. This gene was cloned with its sigma A promoter and a downstream region including a rho-independent terminator in the shuttle vector pRB394 for Escherichia coli and B. s...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：
更新日期：1998-04-01 00:00:00
abstract：:The purpose of this study was to evaluate experimentally the immunogenicity in rabbits of rubella subunits adsorbed to the adjuvant Quil A. The adsorbed viral proteins form structurally defined ImmunoStimulating COMplexes (ISCOMs). Rubella ISCOMs were tested for their capacity to induce neutralizing and hemagglutinati...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m88-238
更新日期：1988-12-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m75-150
更新日期：1975-07-01 00:00:00
abstract：:Eight Enterococcus faecium strains isolated from ewe milk and artisanal cheese from northwest Argentina were screened for biotechnological properties relevant to flavour development. The API ZYM test showed absence of proteases, presence of high amounts of peptidases, and high esterase-lipase activities. Low extracell...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w05-136
更新日期：2006-03-01 00:00:00
abstract：:The acetylene-reduction assay was used for in situ and laboratory assessment of biological nitrogen fixation in the acidic, waterlogged, muskeg ecosystem of the southern James Bay area, in the region of Moosonee, Ontario. In situ assays and subsequent laboratory experimentation revealed that nitrogenase activity was p...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-130
更新日期：1976-07-01 00:00:00
abstract：:The IncHII plasmid pHH1508a (208 kilobases) encodes resistance to potassium tellurite, trimethoprim, and streptomycin. Conjugative pili encoded by pHH1508a were isolated, purified, and used for preparation of anti-H pilus antiserum. Immuno-gold labelling experiments using H pilus specific antiserum showed that antigen...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m89-043
更新日期：1989-02-01 00:00:00
abstract：:Several restriction systems were detected in different strains of Streptomyces antibioticus by using actinophages as biological indicators. Adsorption of phages to the bacteria, together with the study of the efficiency of plating gave an initial indication of restriction in three strains. The alternation of efficienc...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m85-177
更新日期：1985-10-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w2012-007
更新日期：2012-04-01 00:00:00
abstract：:The respiration of Candida lipolytica on n-tetradecane is decreased in the presence of bentonite. This inhibition is less pronounced by the introduction of hydrophobic chains on the bentonite. Oxygen demand of resting cells varies with the length of hydrophobic chains. In fermentor, addition of adsorbant does not stim...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：
更新日期：1976-08-01 00:00:00
abstract：:Bacteria associated with 6 habitats of groundnut were evaluated for their broad-spectrum antifungal activity and suppression of collar rot (Aspergillus niger) of groundnut. Three hundred and ninety-three strains were tested against 8 fungal pathogens of groundnut including 5 necrotrophic fungi, Aspergillus flavus, A. ...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w04-119
更新日期：2005-02-01 00:00:00
