Abstract
The seeds of root parasitic plants only germinate in response to specific chemicals (germination stimulants) secreted from host and some non-host roots. For these parasitic plants, which are totally dependent on a specific association with a host that provides them with nutrients and water, this system ensures that germination only occurs when suitable host roots are available in the close vicinity. Root parasitic plants cause devastating effects on their hosts, which in most cases are cereals and legumes, staple food for people in many parts of the world. This mini-review describes the germination stimulants for root parasitic plants, the importance of the stimulants in host recognition, and possible control measures against root parasitic plants using germination stimulants.
