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作物学报

作物学报 ›› 2014, Vol. 40 ›› Issue (07): 1227-1234.doi: 10.3724/SP.J.1006.2014.01227

• 耕作栽培·生理生化 • 上一篇    下一篇

甜玉米乳熟期籽粒维生素A源和维生素E组分的变异

冯发强1,王国华1,王青峰1,杨瑞春1,李小琴1,2,*   

  1. 1 华南农业大学农学院，广东广州 510642；2 亚热带农业生物资源保护与利用国家重点实验室 / 华南农业大学，广东广州 510642
  • 收稿日期:2013-11-25 修回日期:2014-04-16 出版日期:2014-07-12 网络出版日期:2014-05-16
  • 通讯作者: 李小琴, E-mail: xiaoqinli2000@126.com, Tel: 020-85285332
  • 基金资助:

    本研究由国家自然科学基金项目(31071427)和高等学校博士学科点专项科研基金项目(20114404110005)资助。

Variation of Provitamin A and Vitamin E Components at Milk Stage of Kernel Development in Sweet Corn

FENG Fa-Qiang1,WANG Guo-Hua1,WANG Qing-Feng1,YANG Rui-Chun1,LI Xiao-Qin1,2,*   

  1. 1 College of Agriculture, South China Agricultural University, Guangzhou 510642, China; 2 State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China
  • Received:2013-11-25 Revised:2014-04-16 Published:2014-07-12 Published online:2014-05-16
  • Contact: 李小琴, E-mail: xiaoqinli2000@126.com, Tel: 020-85285332

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被引次数

8

摘要：

维生素A和维生素E是人与动物必须从食物中摄取的微营养物质。甜玉米是人类直接食用的一种鲜食玉米类型。本研究利用高效液相色谱法测定了47份甜玉米自交系籽粒乳熟期的维生素A源和维生素E各组分的含量。结果表明，不同基因型甜玉米材料间维生素A源和维生素E各组分及α/γ-生育酚存在显著差异。非维生素A源的叶黄素和玉米黄质为维生素A组分中的主要成分，γ-生育酚为维生素E组分中的主要成分。相关分析表明多数性状间表现为显著正相关或不相关，其中β-胡萝卜素极显著正相关于玉米黄质、β-隐黄质和α-类胡萝卜素，维生素E各组分两两极显著相关，α/γ-生育酚极显著负相关于δ-生育酚和γ-生育酚，极显著正相关于玉米黄质和α-生育酚，β-胡萝卜素与α-生育酚的呈正相关。这些数据为进一步研究甜玉米籽粒中维生素A源和维生素E的代谢和微营养品质的改良提供了有益的表型数据。

关键词: 甜玉米, 乳熟期, 维生素A源, 维生素E, 高效液相色谱

Abstract:

 

Vitamin A and Vitamin E are two kinks of micronutrients that must be acquired regularly from dietary sources. Sweet corn is a type of fresh corn for direct consumption by human beings. The content of provitamin A and vitamin E components at milk stage of kernels development were measured by HPLC in 47 sweet corn lines. The results showed that the contents of carotenoids and tocopherols and the α/γ tocopherol ratio were extremely different among 47 sweet corn lines. The non-provitamin A, including lutein and zeaxanthin, is the main components of the total carotenoids. The main component of vitamin E is γ-tocopherol. The pearson correlation analysis showed that significantly positive correlation and non-correlation were detected among most traits. β-Carotene was significantly positive correlated with zeaxanthin, β-cryptoxanthin and α-carotenoids, respectively. Three isomers of vitamin E were significantly correlated between each other. The ratio of α/γ tocopherol had a significantly negative correlation with δ-tocopherol and γ-tocopherol and a significantly positive correlation with zeaxanthin and α-tocopherol. A significantly positive association was found between β-carotene and α-tocopherol. These results provide useful information for the research on provitamin A and vitamin E metabolism and nutritional improvement in sweet corn.

Key words: Sweet corn, Milk stage, Provitamin A, Vitamin E, HPLC

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