Abstract
Osmotic stress caused by dehydration or high-salt conditions poses a major environmental challenge for plant growth and development. Many studies have shown that protein kinases are important regulators during osmotic stress in plants. In the present study, we describe GmAAPK, a soybean (Glycine max (L.) Merr.) gene coding for a putative serine/ threonine protein kinase (abscisic acid (ABA)-activated protein kinase (AAPK)). The cDNA for GmAAPK is 1 409 bp long and contains a single long open reading frame representing a complete coding region of 359 amino acids. GmAAPK was mapped onto the D1a+Q linkage group. Its transcripts are expressed in all tissues, but at high levels in the cotyledon. GmAAPK mRNA was induced by polyethylene glycol, ABA, Ca2+, and Na+, but not cold (4 °C) treatments in soybean leaves. The results suggest that GmAAPK may participate in the regulatory process during osmotic stresses in soybean.
Original language | English (US) |
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Pages (from-to) | 327-333 |
Number of pages | 7 |
Journal | Journal of Integrative Plant Biology |
Volume | 48 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2006 |
Externally published | Yes |
Keywords
- Abiotic stress
- Protein kinase
- SnRK2
- Soybean
ASJC Scopus subject areas
- Biochemistry
- General Biochemistry, Genetics and Molecular Biology
- Plant Science