Variation in concentration and composition of anthocyanins among strawberry cultivars
Variation in concentration and composition of anthocyanins among strawberry cultivars
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DOI：
10.2503/jjshs.74.36
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发表时间：
2005-01-01
影响因子：
--
通讯作者：
Tamura, H
中科院分区：
文献类型：
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作者：
Yoshida, Y;Tamura, H
日本和欧洲草莓（Fragaria x ananassa Duch.）分析了不同品种花色苷含量和组成的差异。在果实内，总花青素的浓度是在表皮组织高于内皮层或髓的所有品种，但品种之间，浓度的差异较大，在内部果肉相比，表皮组织。新育成的日本品种果肉内部色素含量显著低于欧洲品种‘Elsanta’和‘Darselect’以及日本老品种‘Hokowase’。天竺葵素3-葡萄糖苷是除瘦果外的主要色素。在瘦果中，花青素衍生物和丙二酰化花青素的组成是非常高的相比，其他组织。所有品种的瘦果中都含有大量的矢车菊素3-丙二酰葡萄糖苷和天竺葵素3-丙二酰葡萄糖苷。'丰香'，'Sachinoka'和'爱浆果'的表皮组织中只含有微量的丙二酰化花青素，瘦果中的色素浓度也较低。根据这些结果，对草莓花托中控制丙二酰化花青素合成的单一显性基因Amg的功能和表达进行了讨论。
Japanese and European strawberry (Fragaria x ananassa Duch.) cultivars were analyzed for their differences in their concentration and composition of anthocyanins. Within a fruit, the concentration of total anthocyanins is higher in epidermal tissues than in inner cortex or pith for all cultivars, but among cultivars, differences in the concentration were greater in the inner flesh compared to the epidermal tissues. The pigment in inner flesh was significantly less concentrated in the newly released Japanese cultivars than in the European cultivars, 'Elsanta' and 'Darselect', or the old Japanese cultivar 'Hokowase'. Pelargonidin 3-glucoside was the predominant pigment except for achenes. In achenes, the compositions of cyanidin derivatives and malonylated anthocyanins were extremely high compared to the other tissues. Considerable amounts of cyanidin 3-malonylglucoside, which has not been reported previously and pelargonidin 3-malonylglucoside occurred in achenes of all cultivars. The epidermal tissues of 'Toyonoka', 'Sachinoka' and 'Ai-Berry' contained only a trace level of malonylated anthocyanins; the achenes also had low concentration of the pigments compared to other cultivars. With these results, the functions and expression of Amg, the single dominant gene that supposedly controls the synthesis of malonylated anthocyanins in the strawberry receptacle, are discussed.