Reasons for the color change of E.pulcherrima were studied with physiological and biochemical paraments such as: chlorophyll,carotenoids,anthocyanin,Phenylalanine ammonia-lyase (PAL),pH of cell sap in leaves and solub...Reasons for the color change of E.pulcherrima were studied with physiological and biochemical paraments such as: chlorophyll,carotenoids,anthocyanin,Phenylalanine ammonia-lyase (PAL),pH of cell sap in leaves and soluble sugar content etc.The results showed that during the period of the leaf color transmittion of E.pulcherrima,the contents of plastid pigment,soluble sugar and pH of cells sap in leaves showed a high-low-high dynamic change,while the contents of anthocyanin and PAL activity showed the low-high...展开更多
为了研究白果蒲桃(Syzygium album Q.F.Zheng)不同叶位的叶色表型差异与呈色生理因子之间的相关性,以同一生长发育期的白果蒲桃为研究对象,对不同叶色表型进行RHSCC色彩测定、色差参数采集、pH值、EC值以及各色素组分和可溶性糖含量的...为了研究白果蒲桃(Syzygium album Q.F.Zheng)不同叶位的叶色表型差异与呈色生理因子之间的相关性,以同一生长发育期的白果蒲桃为研究对象,对不同叶色表型进行RHSCC色彩测定、色差参数采集、pH值、EC值以及各色素组分和可溶性糖含量的测定与分析。结果显示:(1)白果蒲桃不同叶位的叶片呈现显著的颜色差异,从上到下叶色由红色到黄绿色再到绿色,红度(+a^(*))逐渐下降,绿度(-a^(*))和黄度(+^(*))逐渐升高。(2)叶片色泽亮度(L^(*))与Chlalb和类黄酮/叶绿素(Fla/Chl)比值系数呈极显著正相关,与可溶性糖含量呈显著负相关;叶色红/绿度(a^(*))与叶液EC值、花青素含量和花青素/类黄酮(OPC/Fla)比值系数呈极显著正相关,与叶液pH值、叶绿素、类胡萝卜素和类黄酮含量呈显著负相关;叶色彩度(C^(*))与可溶性糖含量为极显著负相关。(3)白果蒲桃的叶片呈色差异不是由某一种色素决定的,而是由各色素的相对组分含量和色素比值系数共同作用的结果。研究结果说明,通过色差参数与色素比值系数的联合分析,可以使叶色表型与色差程度数据化,降低感官误差,为彩叶树种的色差评价和呈色机理分析提供参考与借鉴。展开更多
文摘Reasons for the color change of E.pulcherrima were studied with physiological and biochemical paraments such as: chlorophyll,carotenoids,anthocyanin,Phenylalanine ammonia-lyase (PAL),pH of cell sap in leaves and soluble sugar content etc.The results showed that during the period of the leaf color transmittion of E.pulcherrima,the contents of plastid pigment,soluble sugar and pH of cells sap in leaves showed a high-low-high dynamic change,while the contents of anthocyanin and PAL activity showed the low-high...
文摘为了研究白果蒲桃(Syzygium album Q.F.Zheng)不同叶位的叶色表型差异与呈色生理因子之间的相关性,以同一生长发育期的白果蒲桃为研究对象,对不同叶色表型进行RHSCC色彩测定、色差参数采集、pH值、EC值以及各色素组分和可溶性糖含量的测定与分析。结果显示:(1)白果蒲桃不同叶位的叶片呈现显著的颜色差异,从上到下叶色由红色到黄绿色再到绿色,红度(+a^(*))逐渐下降,绿度(-a^(*))和黄度(+^(*))逐渐升高。(2)叶片色泽亮度(L^(*))与Chlalb和类黄酮/叶绿素(Fla/Chl)比值系数呈极显著正相关,与可溶性糖含量呈显著负相关;叶色红/绿度(a^(*))与叶液EC值、花青素含量和花青素/类黄酮(OPC/Fla)比值系数呈极显著正相关,与叶液pH值、叶绿素、类胡萝卜素和类黄酮含量呈显著负相关;叶色彩度(C^(*))与可溶性糖含量为极显著负相关。(3)白果蒲桃的叶片呈色差异不是由某一种色素决定的,而是由各色素的相对组分含量和色素比值系数共同作用的结果。研究结果说明,通过色差参数与色素比值系数的联合分析,可以使叶色表型与色差程度数据化,降低感官误差,为彩叶树种的色差评价和呈色机理分析提供参考与借鉴。
