Single nuclear paracrystals were observed in gametophyte cells of the fern Polystichum setiferum. They consist of proteins poor in basic aminoacids and have sharp-profiled, polyhedral shapes, with inner diameters up to 4.5 mu m. The substructure is a fine, very close-meshed reticulum resolvable at magnifications of 40,000x or more. The hypothesis that these paracrystals are storage bodies of unused nuclear proteins is discussed.
Muccifora, S., P., G.'. (1997). NUCLEAR PARACRYSTALS IN THE FERN POLYSTICHUM SETIFERUM GAMETOPHYTE. AMERICAN FERN JOURNAL, 87(1), 12-16 [10.2307/1547243].
NUCLEAR PARACRYSTALS IN THE FERN POLYSTICHUM SETIFERUM GAMETOPHYTE
MUCCIFORA, SIMONETTA;
1997-01-01
Abstract
Single nuclear paracrystals were observed in gametophyte cells of the fern Polystichum setiferum. They consist of proteins poor in basic aminoacids and have sharp-profiled, polyhedral shapes, with inner diameters up to 4.5 mu m. The substructure is a fine, very close-meshed reticulum resolvable at magnifications of 40,000x or more. The hypothesis that these paracrystals are storage bodies of unused nuclear proteins is discussed.
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https://hdl.handle.net/11365/44413