CYTOLOGIA
Online ISSN : 1348-7019
Print ISSN : 0011-4545
On the Occurrence and Fine Structure of a Chloroplast Inclusion in Tomato Leaf
A. P. Singh
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JOURNAL FREE ACCESS

1977 Volume 42 Issue 1 Pages 169-174

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Abstract

The fine structure of an electron dense plastid inclusion, commonly called prethylakoidal body, was studied at the electron microscope level. Much like in other plants, the prethylakoidal bodies of tomato leaves occur in intermembranous regions of the chloroplast stroma and are frequently associated with grana thylakoids. The body-associated grana are closely appressed to the limiting membrane of the prethylakoidal body. The prethylakoidal bodies are highly electron dense in early stages and gradually become less dense in later stages. The interior of the prethylakoidal body appears coarsely granular. On the basis of an association between the prethylakoidal body and grana (Figs. 2, 3) and on the basis of chemical characterization (Ames and Pivorun 1974) it can be suggested that this inclusion takes part in the formation of grana.

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© The Japan Mendel Society
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