Quantitative RT-PCR analysis of candidate defence genes.

<p>PTF, healthy. PTFI, phytoplasma infected. PTFI-15, phytoplasma infected and 15 mg·L⁻¹ MMS treated. PTFI-30, phytoplasma infected and 30 mg·L⁻¹ MMS treated. (A) mRNA levels for a purple acid phosphatase. (B) mRNA levels for a WRKY transcription factor. (C) mRNA levels for a hexose carrier. (D) mRNA levels for a heat shock protein 70. (E) mRNA levels for a glutathione S-transferase. (F) mRNA levels for a pyruvate kinase. 18S rRNA was used as the internal reference gene. Standard error of the mean for three technical replicates is represented by the error bars.