Relationships between Phosphatidylglycerol Molecular Species of Thylakoid Membrane Lipids and Sensitivities to Chilling-induced Photoinhibition in Rice (Oryza sativa L.) Studies on Composition of Molecular Species of Phosphatidylglycerol in Relation to Cold-resistance of Poplar Effect of Phosphatidylglycerol on Oxygen Evolution in Photosystem II Alternation in Lipid Composition of Wheat Leaves Induced by Phosphate Deficiency Is Related to Both Lipid Biosynthesis and Phosphatidylglycerol Degradation