Figure 4

Transcript accumulation of defense genes in tea leaves after elicitation by laminarin. Mean transcript levels (+SE, n = 5) of CsPPO (a), CsPAL1 (b), CsCHIT1 (c) and CsCalS1 (d) in leaves of tea plants treated with laminarin (Lam), relative to controls (Con). Asterisks indicate significant differences in transcript levels between treatments and controls at each time point (*P < 0.05; **P < 0.01; Student’s t-test).