国立研究開発法人 国際農林水産業研究センター | JIRCAS

Structure and Function of the Haustorium in Germinating Coconut Palm Seed

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

During the germination of coconut seed, a haustorium was formed from the distal portion of the embryo. Compared with various parts of tissues within a haustorium, the surface tissues were markedly different in (1) bearing undulating structure which closely attached with the degradating endosperm, (2) possessing starch grains and oil droplets in developing haustorium, (3) accumulating relatively high amounts of sucrose and starch, and (4) being the presence of considerably higher activities of phosphoglucomutase and phosphoglucose isomerase. In addition, vascular bundles were situated near the outer surface. In view of this tissue specific features, it is likely that the surface layer consisting of epithelium and adjacent cells plays a key role in absorption of oil reserves released from degraded endosperm and conversion into sugars. Possible interactions between haustorium and endosperm are discussed.

刊行年月1990-07-01
作成者Yukio SUGIMUMA Taka MURAKAMI
データ作成日1990-07-01
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
24
1
開始ページ1
終了ページ14
言語eng