Fig. 4From: Defensive functions of volatile organic compounds and essential oils from northern white-cedar in ChinaThe content of (−)-α-thujone in leaves of T. occidentalis and rhizosphere soil. SY-leaf showed (−)-α-thujone in leaves of T. occidentalis in Shenyang (n = 5). KM-leaf showed (−)-α-thujone in leaves of T. occidentalis in Kunming (n = 3). SY-RS showed the (−)-α-thujone was extracted from the rhizosphere soil (RS) of plant distributed in Shenyang population (n = 5). Triple asterisks (***) indicate significant difference between SY-RS and SY-leaves determined at p < 0.001 (student’s test)Back to article page