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- Title
Physiology of the interaction of angiosperm parasites and their higher plant hosts.
- Authors
Press, M. C.; Graves, J. D.; Stewart, G. R.
- Abstract
Interactions between parasitic angiosperms and their hosts occur at the level of seed germination, haustorial development and resource transfer. Chemicals released from the host function as cues for host recognition, and trigger germination as well as haustorial initiation. Transpiration is a key process regulating solute transfer from host to parasite, and some parasitic plants have unusual stomatal characteristics. Although solute transfer is apoplastic, the haustorium appears to play a role in regulating solute composition. Host responses to infection are reviewed, and it is concluded that competition for water and solutes are unlikely to play a major role in determining reductions in host productivity; metabolic incompatability is suggested to be the major cause of this.
- Subjects
PHYSIOLOGY; PLANT physiology; ANGIOSPERMS; PARASITES; CHEMICALS; GERMINATION; PLANT transpiration
- Publication
Plant, Cell & Environment, 1990, Vol 13, Issue 2, p91
- ISSN
0140-7791
- Publication type
Article
- DOI
10.1111/j.1365-3040.1990.tb01281.x