Abstract:
:Photorhabdus temperata, an insect pathogen and nematode symbiont, is motile in liquid medium by swimming. We found that P. temperata was capable of surface movement, termed swarming behavior. Several lines of evidence indicate that P. temperata use the same flagella for both swimming and swarming motility. Both motility types required additional NaCl or KCl in the medium and had peritrichous flagella, which were composed of the same flagellin as detected by immunoblotting experiments. Mutants defective in flagellar structural proteins were nonmotile for both motility types. Unlike swimming, we observed swarming behavior to be a social form of movement in which the cells coordinately formed intricate channels covering a surface. The constituents of the swarm media affected motility. Swarming was optimal on low agar concentrations; as agar concentrations increased, swarm ring diameters decreased.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Michaels B,Tisa LSdoi
10.1139/W10-119subject
Has Abstractpub_date
2011-03-01 00:00:00pages
196-203issue
3eissn
0008-4166issn
1480-3275pii
w10-119journal_volume
57pub_type
杂志文章abstract::To isolate thiamine excretors and (or) overproducers, 188 cultures belonging to nine yeast and three fungal genera were screened. Nine excreted thiamine as determined by both the presence of cross-feeding zones on a thiamine-free agar medium seeded with a thiamine-requiring yeast strain and by the direct detection of ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m92-189
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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pub_type: 杂志文章
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更新日期:2019-05-01 00:00:00
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doi:10.1139/m86-010
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pub_type: 杂志文章
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abstract::Enterococci, formerly confounded with faecal streptococci, are recognized since the beginning of the century as being faecal in origin and are generally searched for in waste waters and food products; their detection may in fact indicate the presence of enteropathogenic organisms. Although nearly ubiquitous, their pre...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-114
更新日期:1995-09-01 00:00:00
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journal_title:Canadian journal of microbiology
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更新日期:2007-08-01 00:00:00
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journal_title:Canadian journal of microbiology
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更新日期:2006-07-01 00:00:00
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更新日期:1979-04-01 00:00:00
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pub_type: 杂志文章
doi:10.1139/w06-005
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/cjm-2015-0710
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m82-204
更新日期:1982-12-01 00:00:00
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journal_title:Canadian journal of microbiology
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doi:10.1139/m80-163
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/cjm-2020-0219
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w07-116
更新日期:2008-02-01 00:00:00
abstract::Eighteen gram-negative marine bacteria and two terrestrial species, Escherichia coli and Pseudomonas aeruginosa, were examined for their sensitivity to lysis in distilled water after exposure to a salt solution containing a sea water concentration of Mg2+ (0.05 M) or to 0.5 M NaCl. A spectrum of lytic susceptibility w...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m82-063
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abstract::Raw milk samples from bulk tanks in Ontario were analyzed for the presence of Listeria species. The overall incidence of Listeria species in raw milk was 12.4%. Listeria innocua was most frequently isolated and was found in 9.7% (43/445) of the raw milk samples, while L. monocytogenes and L. welshimeri were each found...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
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更新日期:1983-09-01 00:00:00
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章,评审
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更新日期:2012-05-01 00:00:00
abstract::The new United States Drinking Water Regulations state that water systems must analyze for Escherichia coli or fecal coliforms on any routine or repeat sample that is positive for total coliforms. The proposed methods for the detection of E. coli are based on beta-glucuronidase activity, using the fluorogenic substrat...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m91-157
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:
更新日期:2000-08-01 00:00:00
abstract::In a previous study it was shown that the number of wood-inhabiting bacteria was drastically reduced after colonization of beech (Fagus sylvatica) wood blocks by the white-rot fungus Hypholoma fasciculare, or sulfur tuft (Folman et al. 2008). Here we report on the mechanisms of this fungal-induced antibacterial activi...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w10-023
更新日期:2010-05-01 00:00:00
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w05-050
更新日期:2005-08-01 00:00:00
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m85-162
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