Links to Exploration step
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Intrinsic and extrinsic light responses of Salmonella typhimurium and Escherichia coli.</title><author><name sortKey="Taylor, B L" sort="Taylor, B L" uniqKey="Taylor B" first="B L" last="Taylor">B L Taylor</name></author><author><name sortKey="Koshland, D E" sort="Koshland, D E" uniqKey="Koshland D" first="D E" last="Koshland">D E Koshland</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">1097417</idno><idno type="pmc">235761</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC235761</idno><idno type="RBID">PMC:235761</idno><date when="1975">1975</date><idno type="wicri:Area/Pmc/Corpus">000168</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000168</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Intrinsic and extrinsic light responses of Salmonella typhimurium and Escherichia coli.</title><author><name sortKey="Taylor, B L" sort="Taylor, B L" uniqKey="Taylor B" first="B L" last="Taylor">B L Taylor</name></author><author><name sortKey="Koshland, D E" sort="Koshland, D E" uniqKey="Koshland D" first="D E" last="Koshland">D E Koshland</name></author></analytic><series><title level="j">Journal of Bacteriology</title><idno type="ISSN">0021-9193</idno><idno type="eISSN">1098-5530</idno><imprint><date when="1975">1975</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Exposure to intense light in the region between 390 and 530 nm has been shown to have three effects on the motility of Salmonella typhimurium and Escherichia coli. Short pulses of light initiate continuous tumbling. Longer exposures to light induce smooth swimming, and prolonged exposures induced paralysis. The tumbling response is intimately connected with the chemical gradient-sensing apparatus of the bacterium and can be overcome by strong temporal gradients of attractant. Some mutants of S. typhimurium which are defective in the tumble-generating mechanism for chemotaxis are also unable to tumble in intense light. This intrinsic light effect can be mimicked by the addition of external dyes (the classical photodynamic effect), but it can be shown that the two phenomena are distinct. The extrinsic (photodynamic) effect can be inhibited by histidine or by anaerobic conditions, whereas the intrinsic effect is not. The observation that the extrinsic effect can also produce the three types of light responses listed above suggests a common pathway after an intial event on either an endogenous or an externally added photoreceptor.</p><sec sec-type="scanned-figures"><title>Images</title><fig id="F1"><graphic xlink:href="jbacter00327-0179-a" xlink:role="559"></graphic></fig><fig id="F2"><graphic xlink:href="jbacter00327-0185-a" xlink:role="565"></graphic></fig></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Bacteriol</journal-id><journal-title>Journal of Bacteriology</journal-title><issn pub-type="ppub">0021-9193</issn><issn pub-type="epub">1098-5530</issn></journal-meta><article-meta><article-id pub-id-type="pmid">1097417</article-id><article-id pub-id-type="pmc">235761</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Intrinsic and extrinsic light responses of Salmonella typhimurium and Escherichia coli.</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Taylor</surname><given-names>B L</given-names></name></contrib><contrib contrib-type="author"><name><surname>Koshland</surname><given-names>D E</given-names><suffix>Jr</suffix></name></contrib></contrib-group><pub-date pub-type="ppub"><month>8</month><year>1975</year></pub-date><volume>123</volume><issue>2</issue><fpage>557</fpage><lpage>569</lpage><abstract><p>Exposure to intense light in the region between 390 and 530 nm has been shown to have three effects on the motility of Salmonella typhimurium and Escherichia coli. Short pulses of light initiate continuous tumbling. Longer exposures to light induce smooth swimming, and prolonged exposures induced paralysis. The tumbling response is intimately connected with the chemical gradient-sensing apparatus of the bacterium and can be overcome by strong temporal gradients of attractant. Some mutants of S. typhimurium which are defective in the tumble-generating mechanism for chemotaxis are also unable to tumble in intense light. This intrinsic light effect can be mimicked by the addition of external dyes (the classical photodynamic effect), but it can be shown that the two phenomena are distinct. The extrinsic (photodynamic) effect can be inhibited by histidine or by anaerobic conditions, whereas the intrinsic effect is not. The observation that the extrinsic effect can also produce the three types of light responses listed above suggests a common pathway after an intial event on either an endogenous or an externally added photoreceptor.</p><sec sec-type="scanned-figures"><title>Images</title><fig id="F1"><graphic xlink:href="jbacter00327-0179-a" xlink:role="559"></graphic></fig><fig id="F2"><graphic xlink:href="jbacter00327-0185-a" xlink:role="565"></graphic></fig></sec></abstract></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/TelematiV1/Data/Pmc/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 0001680 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd -nk 0001680 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= TelematiV1
|flux= Pmc
|étape= Corpus
|type= RBID
|clé=
|texte=
}}
| This area was generated with Dilib version V0.6.31. |  |