Studies on the Development of Endosperm in Rice : 4. Differentiation and development of the aleuron layer.

[摘要] On the dorsal side of the endosperm on the 5th day after anthesis, the cells on the outermost and the second layers were smaller in size and stained more deeply with Haematoxylin and Millon's reagent than the cells on other layers. They increased to 3 or 4 layers by their own cell division and then differentiated to the aleuron layers by the 6th-7th day. Cells adjacent to the inside of particular cell layers continued to increase the number of starch cells by the cell division up to the 8th day, and some of them also differentiated additionally to the aleuron cells on the 9th day. On the lateral and ventral sides, the cells on the outermost layer showed a slight particularity, but still continued to make cell division in order to increase the number of starch cells up to the 7th or 8th day, and then differentiated to the aleuron cell layer on the 9th day after the final cell division. The aleuron cell was morphologically completed on around the 15th day. The date for its completion coincided with the date for the completion of the enlargement of the starch cells.

[学科分类] 农业科学（综合）