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Author Takahashi,R., Joshee,N. and Kitagawa,Y.
Title Induction of chilling resistance by water stress, and cDNA sequence analysis and expression of water stress-regulated genes in rice.
Abstract:
Exposure of seedlings of a chilling-sensitive variety of rice (Oryza sativa L. cv. Wasetoittu) to water stress (0.5 M mannitol, 30 min) at room temperature induced a degree of chilling resistance. No such resistance was induced by exogenous abscisic acid (ABA) application (10 microM, 60 min). Upon short-term water stress, new transcripts were expressed in both seedlings and suspension-cultured cells. We suggest that the genes induced by short-term water stress, and not those induced by ABA, are related to acquired chilling resistance in this chilling-sensitive rice variety. A total of nine different cDNA clones, specifically induced by short-term water stress, were isolated by differential hybridization and partial sequencing. Northern hybridization analysis using RNAs from the seedlings subjected to chilling after water stress treatment reveal three distinct groups of above mentioned nine cDNA clones: wsi (water stress-induced) 18, 76, and 724, representative of genes whose expression increases, decreases, and remains almost fixed during chilling, respectively. The nucleotide and deduced amino acid sequences of the three representative clones were determined. Characteristic features of wsi18 are the presence of one set of amino acid sequence repeats, a conserved amino acid sequence common to LEA-group genes in the N-terminal region, and an alanine- and lysine-rich tract in the C-terminal region.
Journal Plant Mol. Biol.
Country Japan
Volume 26(1)
Pages 339-352
Year 1994
PubMed ID 7948880
PubMed Central ID -
DOI -
URL -
Relation
Gene LEA24 WSI18 WSI76
INSD D26536 D26537 D26538
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
-
Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase