甜橙果肉有色体的结构特征及其分化研究

来源 :第五届全国果树分子生物学学术研讨会 | 被引量 : 0次 | 上传用户:youxiing
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  色泽品质是果实品质构成的关键因素,直接决定了果实的商品价值。细胞学观察两对红肉和黄肉柑橘品种的有色体结构,并结合HPLC 测量的有色体类胡萝卜素的含量与组分数据,发现:(1)红肉品种的红肉组织以积累番茄红素或β-胡萝卜素为主,最终形成晶状有色体;而(2)黄肉品种的黄肉组织以积累叶黄素和β-紫黄质为主,最终形成球状有色体;并且具有组织和品种特异性。
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  香气是决定柑橘果实品质和商品价值的重要指标之一。挥发性萜烯类物质是柑橘果皮香气的重要组成成分。倍半萜类化合物含量较少,但是在柑橘香气品质中起着至关重要的作用,其
  大部分柑橘果皮伴随果实成熟,其色泽由绿变黄明显,不仅是提取天然色素的良好原料,而且是研究果实脱绿(叶绿素降解)的重要材料。乙烯或乙烯利处理均可加速柑橘果皮叶绿素降解