Journal
NEMATOLOGY
Volume 4, Issue -, Pages 99-105Publisher
BRILL ACADEMIC PUBLISHERS
DOI: 10.1163/156854102760082258
Keywords
attraction; chemical recognition; reniform nematode; repulsion; root knot nematode; salt
Categories
Ask authors/readers for more resources
The orientation of juveniles of Meloidogyne incognita and Rotylenchulus reniformis was studied in salt gradients created in a linear agarose gel. Twelve combinations of calcium, potassium, sodium or ammonium cations and chloride, nitrate or sulphate anions were tested. The orientation of juveniles of M. incognita was induced by the constitutive cation of the salt, e.g., calcium salts had no effect while the other salts and especially ammonium salts and ammonium nitrate were strongly repellent. In contrast, the orientation of juveniles of R. reniformis was induced by the constitutive anion of the salt, e.g., chloride salts were found to be repellent while sulphate and nitrate salts were attractive. These results are discussed as possible novel control strategies for economically important plant parasitic nematodes. In other respects, these differences in chemical preferences may partly explain the observed geographical distribution of these nematode species according to the ionic content of the soils.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available