摘要
Plant-parasitic nematodes are among the most destructive plant pathogens,causing estimated damage of more than US$100 billion per year.An expert-based assessment of crop health listed nematodes as among the most damaging pests and pathogens in potato,soybean,and wheat crops(Savary et al.,2019).Most damage is caused by a small group of root-infecting sedentary endoparasitic nematodes including cyst nematodes and rootknot nematodes(RKNs).Second-stage juveniles(J2s)of plantparasitic nematodes hatch from eggs into the soil and localize to the roots of host plants.The success of these non-feeding J2s depends on their ability to locate and infect a suitable host.The attraction of plant-parasitic nematodes to the host root has been a subject of study for the past 80 years following the pioneering research that demonstrated the attraction of RKN specifically toward root tips(Lindford,1939).Both volatile and soluble components in the rhizosphere have been shown to influence nematode movement.
基金
The work in the Siddiquelab is supported by the United States Department of Agriculture(project no.CA-D-ENM-2562-RR).
