The altered metabolome induced by PA treatment impairs M.
incognita motility
As PA treatment significantly alters the plant metabolome and reduces
tomato susceptibility to M. incognita , we wondered whether
exposure to a methanol extract from PA- and mock-treated plants would
differentially affect the motility of M. incognita J2s. AsFigure 7 shows, shoot extracts from PA-treated plants are more
nematistatic than shoot extracts from mock-treated plants after 4 and 24
hours of exposure (4 h: P < 0.001; 24 h: P < 0.001),
while root extracts from PA-treated plants are more nematistatic only at
24 hours (4 h: P = 0.098; 24 h: P < 0.001).