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- Title
Plants and the Environment. Macromolecular trafficking between Nicotiana tabacum and the holoparasite Cuscuta reflexa.
- Authors
Haupt, Sophie; Oparka, Karl J.; Sauer, Norbert; Neumann, Stefanie
- Abstract
Transgenic tobacco plants expressing green fluorescent protein (GFP) under the control of the companion cell-specific promoter, AtSUC2, were parasitized by the holoparasite Cuscuta reflexa (dodder). GFP, moving in the translocation stream of the host, was transferred to the Cuscuta phloem via the absorbing hyphae of the parasite. An identical pattern of transfer was observed for the phloem-mobile probe, carboxyfluorescein. Following uptake by the parasite, GFP was translocated and unloaded from the Cuscuta phloem in meristematic sink tissues. Contrary to published data, these observations suggest the presence of a functional symplastic pathway between Cuscuta and its hosts, and demonstrate a considerable capacity for macromolecular exchange between plant species.
- Publication
Journal of Experimental Botany, 2001, Vol 52, Issue 354, p173
- ISSN
0022-0957
- Publication type
Academic Journal
- DOI
10.1093/jexbot/52.354.173