A possible role for intercisternal elements in the formation of secretory vesicles in plant Golgi apparatus.
نویسندگان
چکیده
Oriented fibres in the intercisternal regions of plant dictyosomes are usually associated with flattened portions of cisternae. In outer cap cells of maize roots, however, the intercisternal fibres are associated mainly with unique secretory vesicles which are elongate or kidney-shaped during their formative stages. Fibres are oriented parallel with the long axes of the vesicles even at early stages of vesicle formation. Because of their early presence and orientation, the fibres may aid in organizing and/or shaping the secretory vesicles in this tissue.
منابع مشابه
Structural differences contrast higher plant and animal Golgi apparatus.
The intercisternal spacings between cisternae of dictyosomes of higher plants differ from those of mammalian dictyosomes. In plants, the spacings increase from an average of about 8.0 nm at the forming face to about 14.0 nm at the maturing face. The increase in spacing coincides with the appearance within the intercisternal space of parallel filaments called intercisternal elements. In mammals,...
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ورودعنوان ژورنال:
- Journal of cell science
دوره 19 2 شماره
صفحات -
تاریخ انتشار 1975