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Titolo:
Survey of gene expression in winter rye during changes in growth temperature, irradiance or excitation pressure
Autore:
Ndong, C; Danyluk, J; Huner, NPA; Sarhan, F;
Indirizzi:
Univ Quebec, Dept Sci Biol, Montreal, PQ H3C 3P8, Canada Univ Quebec Montreal PQ Canada H3C 3P8 Biol, Montreal, PQ H3C 3P8, Canada Univ Western Ontario, Dept Plant Sci, London, ON N6A 5B7, Canada Univ Western Ontario London ON Canada N6A 5B7 London, ON N6A 5B7, Canada
Titolo Testata:
PLANT MOLECULAR BIOLOGY
fascicolo: 6, volume: 45, anno: 2001,
pagine: 691 - 703
SICI:
0167-4412(200104)45:6<691:SOGEIW>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
MESSENGER-RNA ABUNDANCE; HARVESTING COMPLEX-II; HORDEUM-VULGARE L.; COLD-ACCLIMATION; BLUE-LIGHT; FREEZING TOLERANCE; CALVIN CYCLE; CHLORELLA-VULGARIS; PLASMA-MEMBRANE; WHEAT;
Keywords:
excitation pressure; photosystem II; light; cold acclimation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Sarhan, F Univ Quebec, Dept Sci Biol, CP 8888,Succursale Ctrville, Montreal, PQ H3C 3P8, Canada Univ Quebec CP 8888,Succursale Ctrville Montreal PQ Canada H3C 3P8
Citazione:
C. Ndong et al., "Survey of gene expression in winter rye during changes in growth temperature, irradiance or excitation pressure", PLANT MOL B, 45(6), 2001, pp. 691-703

Abstract

Previous comparisons of winter rye plants (Secale cereale L. cv. Musketeer) grown in a combination of specific temperature (degreesC)/irradiance (mu mol 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 conditionsemployed, 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 ofthese 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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 23:42:56