Linked Life Data

11430431

Source:http://linkedlifedata.com/resource/pubmed/id/11430431

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2001-6-29
pubmed:abstractText
Previous comparisons of winter rye plants (Secale cereale L. cv. Musketeer) grown in a combination of specific temperature (degrees C)/irradiance (micromol m(-2) s(-1)) regimes (20/50; 20/250; 20/800; 5/50; 5/250) revealed (1) that photosynthetic acclimation to low temperature mimics photosynthetic acclimation to high light because both conditions result in comparable reduction states of photosystem II (PSII), that is, comparable PSII excitation pressure; (2) that the relative redox state of PSII also appears to regulate a specific cold acclimation gene, Wcs19. In order to identify additional genes regulated differentially by either low temperature, irradiance or excitation pressure, we initiated a detailed analysis of gene expression. We identified and characterized 42 differentially expressed genes from wheat and rye. Based on their patterns of regulation under the five growth conditions employed, 37 of the cDNAs could be classified into four groups: genes regulated by PSII excitation pressure, low temperature, growth irradiance and interaction between growth temperature and irradiance. Partial sequence analyses revealed that several of these genes encode known chloroplastic proteins such as ELIPs, transketolase, carbonic anhydrase and Mg-chelatase. However, five of the genes could not be classified unambiguously into any one of these four categories. The implications of these results and the limitations of the experimental design are discussed in terms of larger-scale genomic studies designed to understand the interactions of multiple abiotic stresses to which a plant may be exposed when examining regulation of gene expression.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0167-4412
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
691-703
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Survey of gene expression in winter rye during changes in growth temperature, irradiance or excitation pressure.
pubmed:affiliation
Department des Sciences biologiques, Université du Québec à Montréal, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't