Distribution Pattern of Photosynthetic Assimilatesas Affected by Phyllotaxis and Vascular System in Tomato Plants

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

Some studies were undertaken to identify the association of distribution pattern of photosynthetic assimilates with the phyllotaxis and vascular system in tomato plants. The vascular system of tomato consisted basically of four orthostichies with two vascular bundles from each leaf. It was clearly observed that the arrangement of the vascular system affected a distribution pattern of 14C-assimilates. The source leaves exported only a smaller portion of their assimilates to young leaves located on the opposite orthostichy to them, as compared with those on the same as well as side orthostichies. Since tomato plants have a sympodial branching system, the leaf which was situated just above the inflorescence differentiated in advance to the inflorescence. The vascular bundles of the leaf in a sympodial branch near inflorescence developed in the location between the inflorescence and the leaf just above it. This vascular pattern cause a limited distribution of photosynthetic assimilates to the inflorescence from the leaf just above it.

作成者 Yoshihiro SHISHIDO
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
開始ページ 176
終了ページ 180
言語 eng