新疆红肉苹果发育期间花青素代谢的研究

Study on Anthocyanin Metabolism in Xinjiang Red-Flesh Apple during Fruit Development

以新疆红肉苹果为试材,研究其生长发育过程中果肉花青素合成代谢的变化。结果表明：新疆红肉苹果果肉中的花青素含量从5月18日~6月11日逐渐减少,从7月5日~7月29日缓慢增长;在成熟的果实中,果肉花青素的含量是0.36 mg·g-1FW,高于普通品种的苹果,说明新疆红肉苹果是潜在的、良好的花青素来源;在新疆红肉苹果中,可溶性糖含量与类胡萝卜素含量呈显著负相关（R=-0.75）,花青素含量与类胡萝卜素含量呈显著正相关（R=0.79）,花青素含量与苯丙氨酸解氨酶（PAL）、花色素合成酶（ANS）之间没有明显的相关性,显示可能存在一些消耗花青素的途径。

The changes of anthocyanin metabolism in Xinjiang red- flesh apple [Malus sieversii f. neidzwetzkyana（ Dieck） Langenf. ]were studied during fruit development. The anthocyanin content in flesh decreased gradually from May 18 to June 11,but increased slowly from July 5 to July 29. In mature fruits,the anthocyanin content was 0. 36 mg·g- 1FW,which were higher than that of common cultivars. It suggested that the Xinjiang red- flesh apple was a potential and good source of anthocyanin. There was significantly negative correlation（ R =- 0. 75） between soluble sugar content and carotenoid content,and significantly positive correlation（ R = 0. 79） between anthocyanin content and carotenoid content; no significant correlations were found between anthocyanin content and the activities of pheammonialyase（ PAL） and anthocyanidin synthase（ ANS）,which implied some pathways to consume anthocyanin.