Identification and cDNA Cloning of a Protein Abundantly Expressed during Apple Fruit Development

概要

論文の詳細を見る
A 60 kDa protein (MF-60) abundantly appearing in matured apple fruit was detected by SDS-PAGE of the soluble protein. It was partially purified through Butyl-Toyopearl and DEAE-cellulose. Its partial amino acid sequences were determined to isolate a full-length cDNA. MF-60 cDNA (mf-60) consisting of 1, 825 bp containing an open reading frame of 1, 524 bp and encoding a 54.2 kDa polypeptide. The deduced polypeptide of mf-60 has 81.1% identity to turgor-responsive protein 26 g from wilted garden pea shoot. Northern blot and Western blot analyses showed that the levels of the protein and the transcript of MF-60 changed in parallel through the developmental seasen; they were very low in young fruit at 36 DAF and 60 DAF, started to increase at 85 DAF, and then remained at a higher level from 114 DAF to 176 DAF. These results suggested that MF-60 functions are connected with fruit development but not with the fruit ripening induced by ethylene.
日本植物生理学会の論文