The transcripts of several components of the protein synthesis machinery are cold-regulated in a chloroplast-dependent manner in barley and wheat

被引：20

作者：

Baldi, P ^{[1
]}

Valè, G ^{[1
]}

Mazzucotelli, E ^{[1
]}

Govoni, C ^{[1
]}

Faccioli, P ^{[1
]}

Stanca, AM ^{[1
]}

Cattivelli, L ^{[1
]}

机构：

[1] Expt Inst Cereal Res, I-29017 Fiorenzuola Darda, PC, Italy

来源：

JOURNAL OF PLANT PHYSIOLOGY | 2001年 / 158卷 / 12期

关键词：

albino plant; barley; cold acclimation; elongation factor; ribosomal protein;

D O I：

10.1078/0176-1617-00591

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Nine clones coding different components of the protein synthesis machinery were selected from an EST barley library prepared from cold exposed plants and tested for their expression at low temperature. Northern analysis revealed that expression of elongation factor (EF) 1Bbeta and two ribosomal protein (RP) genes S7 and L7A was enhanced following exposure to 3degreesC, but not during dehydration or exogenous ABA treatment. The mRNA levels of EF1Bbeta, RPS7, and RPL7A did not vary between cultivars with different frost tolerance, but differences in expression were found between different species. Experiments with an albino mutant and etiolated plants revealed that the cold-dependent regulation of EF1Bbeta, RPS7, and RPL7A transcripts is controlled by a chloroplast-related pathway impaired in the mutant.

引用

页码：1541 / 1546

页数：6

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