1887

Abstract

The subcellular distribution of the movement proteins (MPs) of nine alanine-scanning mutants of (CMV), fused to the green fluorescent protein (GFP) and expressed from CMV, was determined by confocal microscopy of infected epidermal cells of and , as well as infected protoplasts. Only those mutant MPs that were functional for movement in all host species tested localized to plasmodesmata of infected epidermal cells and to tubules extending from the surface of infected protoplasts, as for wild-type CMV 3a MP. Various mutant MPs that were either conditionally functional for movement or dysfunctional for movement did not localize to plasmodesmata and did not form tubules on the surface of infected protoplasts. Rather, they showed distribution to different extents throughout the infected cells, including the cytoplasm, nucleus or the plasma membrane. The CMV 3a MP also did not associate with microtubles.

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2005-04-01
2024-04-26
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