plastonema

plural plastonemas

1. A filament the surrounds a plastosome (organelle).

   The shape of the plastonema and its relation to the plastosome appear clearly in figures 1, 2, and 3.

   1930, Proceedings of the National Academy of Sciences of the United States of America, page 537

   2 more examples

   The plastid is composed of 2 structures, a filament or plastonema, partially surrounding a lighter staining plastosome.

   1933, Jacob Richard Schramm, Biological Abstracts - Volume 7, page 256

   The proplastid of I. howellii is a flattened structure that is differentiated into a plastonema and a plastosome. Lamellae and starch granules appear first in the plastonema and later in the plastosome.

   1961, University of California, Davis, Summaries of Dissertations Submitted in Partial Satisfaction of the Requirements for the Degree of Doctor of Philosophy