Zhao XX, Ma QQ, Yang XH, Liang C, Fang Y, Wang W, Zou Q. [Effects of root-applied glycinebetaine on the composition and function of wheat thylakoid membrane under drought stress]. Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao. 2005 Apr;31(2):135–42. PMID: 15840931.