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- Title
CHLOROPLAST DEVELOPMENT IN AZOLLA ROOTS.
- Authors
Whatley, Jean M.; Gunning, B. E. S.
- Abstract
In the water fern, Azolla pinnata, all the cells of the root are ultimately derived from a single apical cell. The programme of sequential cell divisions which take place as the root develops can be identified with precision. A median longitudinal thin section of this small root provides an ultrastructural transect in which successive stages of cell development are displayed. From a series of sections of roots of different ages it was established that the state of plastid development and the size of the chloroplast population within a cell depend on (1) the age of the root (2) the type of cell and (3) the distance of that cell from the single apical cell.
- Subjects
AZOLLA pinnata; CHLOROPLASTS; PLANT anatomy; CELL division; ROOT growth; PLASTIDS
- Publication
New Phytologist, 1981, Vol 89, Issue 1, p129
- ISSN
0028-646X
- Publication type
Article
- DOI
10.1111/j.1469-8137.1981.tb04755.x