Transfer of phloem-mobile substances from the host plants to the holoparasite Cuscuta sp.

@article{Birschwilks2006TransferOP,
  title={Transfer of phloem-mobile substances from the host plants to the holoparasite Cuscuta sp.},
  author={Mandy Birschwilks and Sophie Haupt and Daniel Hofius and Stefanie Neumann},
  journal={Journal of experimental botany},
  year={2006},
  volume={57 4},
  pages={911-21}
}
During the development of the haustorium, searching hyphae of the parasite and the host parenchyma cells are connected by plasmodesmata. Using transgenic tobacco plants expressing a GFP-labelled movement protein of the tobacco mosaic virus, it was demonstrated that the interspecific plasmodesmata are open. The transfer of substances in the phloem from host to the parasite is not selective. After simultaneous application of (3)H-sucrose and (14)C-labelled phloem-mobile amino acids, phytohormones… CONTINUE READING