{"id":{"repo_id":"cent-lancashire","oai_identifier":"oai:clok.uclan.ac.uk:19023"},"canonical_url":"https://search.dev.ndltd.org/etd/cent-lancashire/oai:clok.uclan.ac.uk:19023","repository":{"repo_id":"cent-lancashire","name":"University of Central Lancashire","base_url":"https://clok.uclan.ac.uk/cgi/oai2"},"display":{"title":"Circadian rhythms in Lhc gene expression in pharbitis nil chois","abstract":"The steady state mRNA levels of Lhc genes in Pharbitis nil were investigated using the wheat Lhcbl *1 (cabi) gene as a heterologous probe. A circadian rhythm in P. nil Lhc gene expression was detected in constant light. This rhythm was initiated or reset to a constant phase by the initial light-on signal received by the plants, and was detectable for at least five days in constant light. The rhythm continued to be detectable for 2 cycles in constant darkness, although the amplitude of the rhythm was reduced. Transfer to constant darkness after a prolonged light period caused a phase shift in the rhythm, the size and direction of which was determined by the time at which the light-off signal was given. It was concluded from these results that the rhythm in Lhc gene expression is governed by a different underlying oscillator from those which govern the photoperiodic response rhythm or leaf movement rhythm in P. nil. These results indicate that the Lhc rhythm may, however, share a common underlying oscillator with the transpiration rhythm in P. nil.","abstract_html":"The steady state mRNA levels of Lhc genes in Pharbitis nil were investigated using the wheat Lhcbl *1 (cabi) gene as a heterologous probe. A circadian rhythm in P. nil Lhc gene expression was detected in constant light. This rhythm was initiated or reset to a constant phase by the initial light-on signal received by the plants, and was detectable for at least five days in constant light. The rhythm continued to be detectable for 2 cycles in constant darkness, although the amplitude of the rhythm was reduced. Transfer to constant darkness after a prolonged light period caused a phase shift in the rhythm, the size and direction of which was determined by the time at which the light-off signal was given. It was concluded from these results that the rhythm in Lhc gene expression is governed by a different underlying oscillator from those which govern the photoperiodic response rhythm or leaf movement rhythm in P. nil. These results indicate that the Lhc rhythm may, however, share a common underlying oscillator with the transpiration rhythm in P. nil.","abstract_has_math":false,"creators":["Mann, Alison"],"institution":"University of Central Lancashire","degree_name":"mphil","degree_level":"masters","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1995,"date_issued":"1995-07","date_published":"1995-07","updated_at":"2026-07-24T01:36:00Z","subjects":["Y - Combined/general subject unspecified"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Mann, Alison"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1995-07-01"]},{"key":"dc:date.issued","label":"Date","values":["1995-07"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Central Lancashire"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://knowledge.lancashire.ac.uk/id/eprint/19023/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["mphil"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Y - Combined/general subject unspecified"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://knowledge.lancashire.ac.uk/id/eprint/19023/1/19023%20Alison%20Mann%20July95%20Circadian%20Rhythms%20in%20Pharbitis%20nil%20Chois.%20Lhc%20Gene%20Expression%20in%20Degree%20of%20Master%20of%20Philosophy%20unpublished%20July95%20University%20of%20Central%20Lancashire%20unknown%20133.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The steady state mRNA levels of Lhc genes in Pharbitis nil were investigated using the wheat Lhcbl *1 (cabi) gene as a heterologous probe. A circadian rhythm in P. nil Lhc gene expression was detected in constant light. This rhythm was initiated or reset to a constant phase by the initial light-on signal received by the plants, and was detectable for at least five days in constant light. The rhythm continued to be detectable for 2 cycles in constant darkness, although the amplitude of the rhythm was reduced. Transfer to constant darkness after a prolonged light period caused a phase shift in the rhythm, the size and direction of which was determined by the time at which the light-off signal was given. It was concluded from these results that the rhythm in Lhc gene expression is governed by a different underlying oscillator from those which govern the photoperiodic response rhythm or leaf movement rhythm in P. nil. These results indicate that the Lhc rhythm may, however, share a common underlying oscillator with the transpiration rhythm in P. nil."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Circadian rhythms in Lhc gene expression in pharbitis nil chois"]}]}],"canonical_facts":{"dc:creator":["Mann, Alison"],"dc:date":["1995-07-01"],"dc:date.issued":["1995-07"],"dc:description.abstract":["The steady state mRNA levels of Lhc genes in Pharbitis nil were investigated using the wheat Lhcbl *1 (cabi) gene as a heterologous probe. A circadian rhythm in P. nil Lhc gene expression was detected in constant light. This rhythm was initiated or reset to a constant phase by the initial light-on signal received by the plants, and was detectable for at least five days in constant light. The rhythm continued to be detectable for 2 cycles in constant darkness, although the amplitude of the rhythm was reduced. Transfer to constant darkness after a prolonged light period caused a phase shift in the rhythm, the size and direction of which was determined by the time at which the light-off signal was given. It was concluded from these results that the rhythm in Lhc gene expression is governed by a different underlying oscillator from those which govern the photoperiodic response rhythm or leaf movement rhythm in P. nil. These results indicate that the Lhc rhythm may, however, share a common underlying oscillator with the transpiration rhythm in P. nil."],"dc:format":["application/pdf"],"dc:identifier.uri":["https://knowledge.lancashire.ac.uk/id/eprint/19023/1/19023%20Alison%20Mann%20July95%20Circadian%20Rhythms%20in%20Pharbitis%20nil%20Chois.%20Lhc%20Gene%20Expression%20in%20Degree%20of%20Master%20of%20Philosophy%20unpublished%20July95%20University%20of%20Central%20Lancashire%20unknown%20133.pdf"],"dc:language":["en"],"dc:publisher.institution":["University of Central Lancashire"],"dc:relation.isreferencedby":["https://knowledge.lancashire.ac.uk/id/eprint/19023/"],"dc:subject":["Y - Combined/general subject unspecified"],"dc:title":["Circadian rhythms in Lhc gene expression in pharbitis nil chois"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["masters"],"dc:type.qualificationname":["mphil"]},"updated_at":"2026-07-24T01:36:00Z"}