A plasma membrane H(+)ATPase gene is germination-induced in wheat embryos

作者：Caliskan Mahmut^*; Bashiardes Stavros; Cuming Andrew C

来源：African Journal of Biotechnology, 2010, 9(3): 268-272.

• Biosynthesis
• cereals
• DNA
• enzymes
• physiology
• plant cell culture

The expression pattern of a germination specific plasma membrane H+-ATPase was analyzed by RTPCR and in situ RNA hybridization methods. RT-PCR results revealed that germination specific plasma membrane H+-ATPase accumulation was detectable in all organs and tissues of germinating wheat embryos. H+-ATPase expression was not observed in dry wheat embryos and in immature wheat embryos. In situ RNA hybridization indicated that germination specific plasma membrane H+-ATPase gene expression was associated with all organs of germinating wheat tissues. The accumulation of H+-ATPase mRNA was more heavily on the cells of vascular bundles and epidermal cells of coleoptiles. Since germination specific plasma membrane H+-ATPase gene was identified as a growth related gene, interest was focused on the activity of growth regulators (GA, IAA, ABA) and stress factors, NaCl and Mannitol, on H+-ATPase gene expression. The results indicated that there were not any dramatic changes in the accumulation of germination specific plasma membrane H+-ATPase gene in any case. More rigorous analysis is necessary to evaluate the effect of growth regulators on germination specific plasma membrane H+-ATPase.

• 出版日期2010-1-18