ALDH12 expression in maize is downregulated in response to salt and drought stresses, possibly to maintain proline levels. Maize seedlings are also exposed to exogenous proline and arginine, and although ZmALDH12 transcript levels in roots do not significantly differ, ZmALDH12 levels in maize leaves are significantly altered: transcript levels are 5fold higher in response to arginine, but nearly 100fold lower in response to proline. This result may indicate an increased contribution of arginine catabolism to cellular glutamate in leaves. Addition of exogenous glutamate results in decreased ZmALDH12 expression in the shoot and increased expression in roots
ALDH12 expression in moss is downregulated in response to salt and drought stresses, possibly to maintain proline levels, with 200 mM NaCl or 400 mM sorbitol, PpALDH12 transcript levels are reduced
although ZmALDH12 transcript levels in roots do not significantly differ, ZmALDH12 levels in maize leaves are significantly altered: transcript levels are 5fold higher in response to arginine, but nearly 100fold lower in response to proline. This result may indicate an increased contribution of arginine catabolism to cellular glutamate in leaves. Addition of exogenous glutamate results in decreased ZmALDH12 expression in the shoot and increased expression in roots