国立研究開発法人 国際農林水産業研究センター | JIRCAS

Selection of Novel Non-lethal, Low Phytic Acid Mutants and Evaluation of their Agronomic Traits/Mineral Compositions in Rice (<i>Oryza sativa</i>)

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

In the grains of cereal crops, 65% to 85% of phosphorus is stored as phytic acid, regardless of the crop species. Non-ruminant animals that include humans, cannot digest phytic acid, and they are unable to use most of the phosphorus in grains. And given the chelating ability of phytic acid, some of the nutritionally important minerals that are stored in phytic acid are not assimilated in these animals. Intending to improve the nutritional value of rice grain in three major cultivars in Japan, we obtained six nonlethal low phytic acid mutants in which the phytic acid content ranged from 42.1% to 94.1% relative to that of their original cultivars. Most of the agronomic traits of the six mutants were comparable to those of the original cultivars, except for a slightly weak germination ability in two mutants whose phytic acid contents were the lowest among the six mutants. In the grains of our mutants, the iron content correlated positively and the calcium contents correlated negatively with the phytic acid contents.

刊行年月2018-01-01
作成者Osamu YATOUHideyuki AOKIJotaro AIIHiroshi TANAKA
著者キーワードnutritionforagenon-ruminant animals
公開者Japan International Research Center for Agricultural Sciences
データ作成日2018-01-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
52
1
開始ページ39
終了ページ47
DOI10.6090/jarq.52.39
言語eng