Genotypic and spike positional difference in grain phytase activity, phytate, inorganic phosphorus, iron, and zinc contents in wheat (Triticum aestivum L.)
Genotypic and spike positional difference in grain phytase activity, phytate, inorganic phosphorus, iron, and zinc contents in wheat (Triticum aestivum L.)
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DOI：
10.1016/j.jcs.2006.06.001
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发表时间：
2006-09-01
影响因子：
3.8
通讯作者：
Liu, D. J.
中科院分区：
文献类型：
--
作者：
Liu, Z. H.;Wang, H. Y.;Liu, D. J.
以186份来自中国不同地区的小麦基因型为材料，研究了小麦籽粒植酸酶活性、植酸盐、无机磷、铁和锌含量的基因型和位置差异。结果表明，这些化学成分的基因型之间的显着差异。粒重与植酸（r = -0.34**）、无机磷（r = -0.23**）、植酸酶活性（r = -0.43**）呈负相关。而粒重与铁（r = 0.20 ~（**））、植酸与锌（r = 0.37 ~（**））、铁与锌（r = 0.29 ~（**））呈正相关。粒位对各组分的影响均达显著水平。总的来说，穗内锌和植酸含量以中央小穗第三小花上的籽粒最低。讨论了这些结果对小麦微量元素品质改良的意义。(c)2006爱思唯尔有限公司保留所有权利。
One hundred and eighty-six wheat genotypes from different areas of China were selected to evaluate the genotypic and positional differences in grain phytase activity, phytate, inorganic phosphorus, iron, and zinc contents. Results showed substantial differences in these chemical components among genotypes. Grain weight and phytate (r = -0.34**), inorganic phosphorus (r = -0.23**), and phytase activity (r = -0.43**) were negatively correlated. In contrast, grain weight and iron (r = 0.20**), phytate and zinc (r = 0.37"), and iron and zinc (r = 0.29**) were positively correlated. The effect of grain position on all these components was significant. Generally, grains on the third florets of the central spikelets had the lowest zinc and phytate contents within a spike. The significance of these results is discussed in relation to the improvement of wheat micronutrient quality. (c) 2006 Elsevier Ltd. All rights reserved.