Molecular and physiological mechanisms of tea (Camellia sinensis (L.) O. Kuntze) leaf and root in response to nitrogen deficiency oleh Zheng-He Lin, Chang-Song Chen, Shui-Qing Zhao, Yuan Liu, Qiu-Sheng Zhong, Qi-Chun Ruan, Zhi-Hui Chen, Xiao-Mei You, Rui-Yang Shan, Xin-Lei Li, Ya-Zhen Zhang