Simple, but not branched, plasmodesmata allow the nonspecific trafficking of proteins in developing tobacco leaves

Imlau A, Sauer N (1999)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 1999

Journal

Publisher: CELL PRESS

Book Volume: 97

Pages Range: 743-754

Journal Issue: 6

DOI: 10.1016/S0092-8674(00)80786-2

Open Access Link: http://www.sciencedirect.com/science/article/pii/S0092867400807862

Abstract

Leaves undergo a sink-source transition during which a physiological change occurs from carbon import to export. In sink leaves, biolistic bombardment of plasmids encoding GFP-fusion proteins demonstrated that proteins with an M-r up to 50 kDa could move freely through plasmodesmata. During the sink-source transition, the capacity to traffic proteins decreased substantially and was accompanied by a developmental switch from simple to branched forms of plasmodesmata. inoculation of sink leaves with a movement protein-defective virus showed that virally expressed GFP, but not viral RNA, was capable of trafficking between sink cells during infection. Contrary to dogma that plasmodesmata have a size exclusion limit below 1 kDa, the data demonstrate that nonspecific "macromolecular trafficking" is a general feature of simple plasmodesmata in sink leaves.

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How to cite

APA:

Imlau, A., & Sauer, N. (1999). Simple, but not branched, plasmodesmata allow the nonspecific trafficking of proteins in developing tobacco leaves. Cell, 97(6), 743-754. https://doi.org/10.1016/S0092-8674(00)80786-2

MLA:

Imlau, Astrid, and Norbert Sauer. "Simple, but not branched, plasmodesmata allow the nonspecific trafficking of proteins in developing tobacco leaves." Cell 97.6 (1999): 743-754.

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