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On the Orientation of Plant Nematodes and of Some Other Soil Animals
84
Citations
0
References
1965
Year
BiologyLong Distance AttractantPlant-soil InteractionOriented MigrationEngineeringNatural SciencesPlant-soil RelationshipEvolutionary BiologyEntomologyPlant NematodesCo 2Plant PathologyNematologySymbiosisNematode PestOther Soil AnimalsParasitology
In summary, we may say that nematodes are attracted to roots and germinating seeds. They reach them by means of oriented migration. This attraction is made possible particularly by chemical factors, especially CO 2 and certain amino acids. The significance of electric stimuli in the finding of the host is not absolutely clear. We may assume that CO 2 , owing to the relatively large quantities in which it is exuded and the ability of nematodes to move under orientation in its gradients, is to be regarded principally as a long distance attractant. The other quantitatively less important excretions may on the other hand play a part in the immediate vicinity of the root.