On the Tissues of Scutellum Concerning with Absorption of Nutrients of Endosperm in Rice and Oat Seeds

Abstract

The experiments were carried out to observe the tissues of vascular bundles and epithelium of scutellum in rice and oat seeds, with reference to the process of absorption of nutrients of endosperm during germination of the seeds. 1. The arrangement of vascular bundles in the scutellum was observed. A broad strand situated in a median plane of scutellum are divided into several fine branch strands on each side of it. These branches curve round and extend backwards, a few again being divided. In oat, all branches disappear on the way near to the level of scutellar node, but in fice, a few branches are continued almost to the base of sctellum. 2. The length and width of epithelium cells were compared at various locations of the scutellum. The development of epithelium cells during germination varies with the locations. 3. The arrangement of vascular bundles and the development of epithelium cells might be closely related to absorption of nutrients of endosperm.