“…Numerous studies have largely focused on the regulation of vascular cambium activity in relation to seasonal cycles (Baba et al, 2011), and genetic networks responsible for stem cell maintenance (Elo et al, 2009;Miyashima et al, 2013). Several studies have also reported that gene expression profiling in the vascular cambium of aspen (Zhong et al, 2010), Eucalyptus (Pavy et al, 2005), Cryptomeria japonica (Mishima et al, 2014), and Populus trichocarpa (Dharmawardhana et al, 2010). Moreover, the sensitivity of cambium to plant hormones is essential for cambium activity and the dynamic mechanism of wood formation (Matsumoto-Kitano et al, 2008;Sorce et al, 2013;Ursache et al, 2013;Wareing, 1958).…”