Scrophulariaceae, root parasites

Plant-Plant Recognition Chemistry-Mediating Host IdentiHcation in the Scrophulariaceae Root Parasites... 

Chang, M. and D. G. Lynn, Plant-plant recognition Chemistry-mediating host identification in the Scrophulariaceae root parasites, in Allelochemicals Role in Agriculture and Forestry (G. R. Waller, ed.), ACS Symposium Series 330, 551-561, American Chemical Society, Washington, DC, 1987. 

Pheromones are classified in at least ten different categories. The most conq)lex category involves enantiomers at a specific composition (Mori 2000), implying multiple receptors. Other complex networks of biological events involve terpenoids released by plants in response to grazing by herbivores. These metabolites can be used to attract parasitic wasps for pest control (Tumlinson 1993), or, like the strigolactones (Table 12.1), as useful germination stimulants of root parasites of plants in the families Scrophulariaceae and Orobanchaceae (Welzel 1999 Ryan 2001). 

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