[Grain oil quality formation and metabolism-related genes difference expression of cv. 'Fengdan' grown at different altitudes].

We measured the morphological index, nutritional composition and the expression analysis of key genes during grain development of cv. 'Fengdan' grown at altitudes of 100, 650 and 1010 m in Luo-yang. The aim of this study was to examine differences in grain yield traits and the transformation of soluble sugar, starch, soluble protein and fatty acid contents, as well as the related enzyme activity and differential expression of key genes in oil metabolism.

[Protoplast culture and plant regeneration of the methionine resistant variant of Astragalus cicer L].

A protoplast-to-plant system for the methionine resistant variant of Astragalus cicer L. has been developed. The friable calli induced from stem segments of variant plants were used as materials for protoplast isolation through enzyme digestion.