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The primary root epidermis of panicum virgatum part 1 ontogeny and fine structure of the epidermal cytoplasmic inclusions


American Journal of Botany 63(9): 1280-1288
The primary root epidermis of panicum virgatum part 1 ontogeny and fine structure of the epidermal cytoplasmic inclusions
The ontogeny of large, globular, epidermal cytoplasmic inclusions (ECI) in P. virgatum roots was studied at the ultrastructural level. These ECI were seen to originate in meristematic cells as small electron translucent vesicles. Subsequently, the ECI, which appeared to be temporary storage sites, were seen to enlarge and increase in density by accumulating masses of a granular matrix as well as some small vesicular inclusions. In the zone of elongation, as the epidermal cells matured, the ECI within each cell gradually fused and the contents were lost. The pattern of the ontogeny of the ECI in the growing epidermal cells was consistent with the presence of cells of different physiologies in the zone of cell elongation of these roots.


Accession: 006740791



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