High temperature is one of the most important environmental factors that affect the successful cultivation of apple (Malus × domestica Borkh). The expression of genes related with anthocyanin synthesis and sugar ...High temperature is one of the most important environmental factors that affect the successful cultivation of apple (Malus × domestica Borkh). The expression of genes related with anthocyanin synthesis and sugar accumulation by high temperature treatment was investigated in the fruits of “Fuji” apple at different developmental stages in different temperature conditions through real- time PCR. In the initial ripening stages in fruits, there was high expression of genes associated with fruit ripening, flavonoid compound accumulation, and coloration in high temperatures. Expression of phenylalanine ammonia-lyase, chalcone synthase, flavone 3-hydrogenase, and malate dehydrogenase genes increased gradually in initial ripening stages, while sharply reduced at 24 hr after treatment. In addition, there was no significant difference in the expression of all temperature treatments in late ripening stages. In the further work, investigation of expression levels of various genes could be conducted in the level of transcriptomes from fruits at the early stages to get meaningful information of ripening metabolism in apples in high temperatures.展开更多
建立高速逆流色谱(HSCCC)法分离制备红葡萄皮中花色苷单体的方法。以乙腈-正丁醇-甲基叔丁基醚-水-三氟乙酸(1∶40∶1∶50∶0.01,V/V)为溶剂体系,上相(有机相)为固定相,下相(水相)为流动相,流速为2.0 m L/min,转速为950 r/min,进样量为2...建立高速逆流色谱(HSCCC)法分离制备红葡萄皮中花色苷单体的方法。以乙腈-正丁醇-甲基叔丁基醚-水-三氟乙酸(1∶40∶1∶50∶0.01,V/V)为溶剂体系,上相(有机相)为固定相,下相(水相)为流动相,流速为2.0 m L/min,转速为950 r/min,进样量为200 mg,分离得到的组分利用紫外-可见(UV)光谱和液质联用(HPLC-MS)技术进行定性分析。结果表明,经过一次高速逆流分离即可得到3种花色苷单体,分别为飞燕草色素-3-O-葡萄糖苷、锦葵色素-3-O-葡萄糖苷和芍药色素-3-O-葡萄糖苷,高效液相色谱(HPLC)峰面积归一法计算其纯度分别为93.7%、95.2%、91.6%。采用高速逆流色谱法成功从红葡萄皮中一次性分离得到3种高纯度的花色苷单体,其中芍药色素-3-O-葡萄糖苷为首次分离得到。展开更多
文摘High temperature is one of the most important environmental factors that affect the successful cultivation of apple (Malus × domestica Borkh). The expression of genes related with anthocyanin synthesis and sugar accumulation by high temperature treatment was investigated in the fruits of “Fuji” apple at different developmental stages in different temperature conditions through real- time PCR. In the initial ripening stages in fruits, there was high expression of genes associated with fruit ripening, flavonoid compound accumulation, and coloration in high temperatures. Expression of phenylalanine ammonia-lyase, chalcone synthase, flavone 3-hydrogenase, and malate dehydrogenase genes increased gradually in initial ripening stages, while sharply reduced at 24 hr after treatment. In addition, there was no significant difference in the expression of all temperature treatments in late ripening stages. In the further work, investigation of expression levels of various genes could be conducted in the level of transcriptomes from fruits at the early stages to get meaningful information of ripening metabolism in apples in high temperatures.
文摘建立高速逆流色谱(HSCCC)法分离制备红葡萄皮中花色苷单体的方法。以乙腈-正丁醇-甲基叔丁基醚-水-三氟乙酸(1∶40∶1∶50∶0.01,V/V)为溶剂体系,上相(有机相)为固定相,下相(水相)为流动相,流速为2.0 m L/min,转速为950 r/min,进样量为200 mg,分离得到的组分利用紫外-可见(UV)光谱和液质联用(HPLC-MS)技术进行定性分析。结果表明,经过一次高速逆流分离即可得到3种花色苷单体,分别为飞燕草色素-3-O-葡萄糖苷、锦葵色素-3-O-葡萄糖苷和芍药色素-3-O-葡萄糖苷,高效液相色谱(HPLC)峰面积归一法计算其纯度分别为93.7%、95.2%、91.6%。采用高速逆流色谱法成功从红葡萄皮中一次性分离得到3种高纯度的花色苷单体,其中芍药色素-3-O-葡萄糖苷为首次分离得到。
