Expression changes of eight defense-related genes in roots of soybean in response to <i>C. parasiticum</i> infection and rhizobia and/or AMF inoculation as well as P level.

<p>LP, 15 µmol P added as KH₂PHO₄; HP, 500 µmol P added as KH₂PHO₄. Except CK, all the roots were inoculated with <i>C. parasiticum</i> (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033977#s4" target="_blank">Materials and Methods</a> for details). CK: roots without <i>C. parasiticum</i>, AMF and rhizobia inoculation; −R−A: roots without AMF and rhizobia inoculation; +R−A: roots inoculated by rhizobia; −R+A: roots inoculated by AMF; +R+A: roots inoculated by rhizobia and AMF. Each bar represented the mean of three biological replicates with standard error.