Production, Purification and Characterization of L-Arginase from Aspergillus clavatonanicus. Asparaginase production by fungi: optimization of fermentation on conditions of asparaginase produced by Aspergillus niger Exogenous methylglyoxal enhances the reactive aldehyde detoxification capability and frost-hardiness of wheat Factors playing role in heat acclimation processes in barley and oat plants Glucose modulates copper induced changes in photosynthesis, ion uptake, antioxidants and proline in Cucumis sativus plants