منابع مشابه
The Plant Vacuole.
Plant cells are unique in containing large acidic vacuoles which occupy most of the cell volume. The vacuolar H+-ATPase (V-ATPase) is the enzyme responsible for acidifying the central vacuole, although it is also present on Golgi and coated vesicles. Many secondary transport processes are driven by the proton-motive force generated by the V-ATPase, including reactions required for osmoregulatio...
متن کاملPlant vacuole morphology and vacuolar trafficking
Plant vacuoles are essential organelles for plant growth and development, and have multiple functions. Vacuoles are highly dynamic and pleiomorphic, and their size varies depending on the cell type and growth conditions. Vacuoles compartmentalize different cellular components such as proteins, sugars, ions and other secondary metabolites and play critical roles in plants response to different b...
متن کاملProtein quality control along the route to the plant vacuole.
To acquire information on the relationships between structural maturation of proteins in the endoplasmic reticulum (ER) and their transport along the secretory pathway, we have analyzed the destiny of an assembly-defective form of the trimeric vacuolar storage glycoprotein phaseolin. In leaves of transgenic tobacco, where assembly-competent phaseolin is correctly targeted to the vacuole, defect...
متن کاملProtein targeting to the vacuole in plant cells.
The vacuole in plant cells plays various roles that are important in the maintenance of cell organization and function, yet the vacuolar function varies greatly depending on the type of cell and on the stage of plant development. The regulation of deposition of various proteins with specific functions in the vacuole is a prerequisite for the expression and maintenance of vacuolar functions. Tra...
متن کاملDelivering of Proteins to the Plant Vacuole—An Update
Trafficking of soluble cargo to the vacuole is far from being a closed issue as it can occur by different routes and involve different intermediates. The textbook view of proteins being sorted at the post-Golgi level to the lytic vacuole via the pre-vacuole or to the protein storage vacuole mediated by dense vesicles is now challenged as novel routes are being disclosed and vacuoles with interm...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1992
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.172.1.113