Advancement in Research on Stress Resistance of Grass Pea Physiological Response of Lathyrus sativus L. to Drought Stress Effects of Eu3+ on Amino Acid and Protein Metabolisms in Lathyrus sativus ODAP biosynthesis: recent developments and its response to plant stress in grass pea (Lathyrus sativus L.) Physiological Responses of Grass Pea Root to Oxidative Stress Induced by H2O2