マコモ(Zizania latifolia Turcz.)における国内自生型と栽培型の解剖学的及び組織化学的性状の比較

概要

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Normal stems and stem gells of the cultivated type and domestic native type of water bamboo(Zizania latifolia Turcz.), were observed comparative anatomically, and were studied on their histochemical properties, especially as to distribution and rise and fall of acid phosphatase (ACP-ase) 1) Compared with the cultivated type, the native type is higher in number of tillers, narrower in width of leaf blades, higher in position on the stem of forming galls, smaller in size of stem galls, and earlier in maturation, being unsuitable as food crop. 2) The senescence of tissue, indicated by sclerenchymatization, lignification, and acid phosphatase (ACP-ase) deactivation of cell walls in epidermis, hypodermis, assimilatory tissue, cortex fiber and vascular bundle sheath of the normal stem, proceeded faster with the native type than the cultivated type. 3) The ACP-ase activity in immature stem galls of the cultivated type was higher than that of the normal stem. In particular, the markedly high activity was noted in the peripheral tissues of vascular bundle and hyphal cavity. Distribution of starch, protein and lipid well corresponded with that of ACP-ase activity. 4)In the tissues of senile stem galls after formation of spores, ACP-ase was deactivated and starch grains disappeared. 5) In the native type no difference in histochemical properties of the stems was noted between that infected by Ustilagoesculenta and the normal.
東京聖栄大学の論文
1987-03-20