کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2819941 | 1569941 | 2007 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A ginseng-specific abundant protein (GSAP) located on the cell wall is involved in abiotic stress tolerance A ginseng-specific abundant protein (GSAP) located on the cell wall is involved in abiotic stress tolerance](/preview/png/2819941.png)
Ginseng ESTs allowed us to identify an unknown transcript which is highly abundant in rhizomes and seeds. We called the cDNA ginseng-specific abundant protein (GSAP), and identified three homologues, GSAP1, GSAP2, and GSAP3. GSAP cDNAs encode a small polypeptide consisting of 121 or 117 amino acids, and GSAP3 shows 87.6% amino acid sequence homology with GSAP1. GSAP transcripts were detected in most plant tissues, but GSAP3 is highly expressed in seeds, and is up-regulated under stressed conditions, water deficit. GSAP3–GFP fusion protein is located in the cell wall when expressed in onion epidermis cells. The transgenic Arabidopsis seedlings which over-expressed GSAP3 grew faster than those of the wild-type plant on the medium containing 300 mM mannitol and 100 mM NaCl. GSAP3 may play a role in altering the characteristics of the cell wall to allow for more tolerance of water deficit stress under abiotic stress conditions.
Journal: Gene - Volume 386, Issues 1–2, 15 January 2007, Pages 115–122