Identification and Characterization of a Gene Encoding Drought-Inducible Protein Localizing in the Bundle Sheath Cell of Sugarcane
Author(s) -
Bambang Sugiharto,
Netty Ermawati,
Hitoshi Mori,
Koh Aoki,
Keiko YonekuraSakakibara,
Tomoyuki Yamaya,
Tatsuo Sugiyama,
Hitoshi Sakakibara
Publication year - 2002
Publication title -
plant and cell physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.975
H-Index - 152
eISSN - 1471-9053
pISSN - 0032-0781
DOI - 10.1093/pcp/pcf039
Subject(s) - complementary dna , gene , vascular bundle , gene expression , microbiology and biotechnology , bundle , biology , drought stress , botany , biochemistry , chemistry , materials science , composite material
We have identified a drought-inducible gene, designated as SoDip22, in sugarcane leaves. The cDNA encoded a hydrophilic protein with a calculated molecular mass of 15.9 kDa and the amino acid sequence was similar to that of ABA, stress and ripening-inducible protein from various plant species. ABA or mannitol-treatment of the detached leaves also induced SoDip22 expression. Stepwise homogenization of the stressed leaves showed that SoDip22 is localized in bundle sheath cells. These results suggest that SoDip22 functions to adapt to drought stress in the bundle sheath cell, and that the signaling pathway for the induction is, at least in a part, mediated by ABA.
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