抄録
The development of the chloroplast from the proplastid in Liriope was investigated, using its normal, green tissue of variegated leaf as the test plant.
The proplastid of normal chloroplast at the earliest stage of development is amyloplastic, containing starch granules and only a small amount of plastoplasm with a small number of scattered vesicles.
With the further development of the proplastid, the vesicles increasing in number, become aggregated to constitute a prolamellar body with characteristic crystal lattice-like structure. Lamellae are formed from the prolamellar body, probably through coalescence of its vesicles. Such a primary lamellar system differentiates into grana lamellae and intergrana lamellae in mature chloroplast.
In conclusion, it seems that highly ordered arrangement of lamellae arises from the regular arrangement of vesicles in the prolamellar body (crystal lattice-like structure).
The author wishes to extend his heartful thanks to Ass. Prof. R. Ueda for his kind guidance throughout this work. Thanks are also due to Prof. K. Hayashi of Tokyo University of Education, and Prof. A. Takamiya of University of Tokyo for their interest and valuable suggestions.
