Proline Metablism During Water Stress in Mulberry |
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Authors: | VEERANJANEYULU, K. KUMARI, B. D. RANJITA |
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Abstract: | The influence of water stress on proline metabolism was studiedin 3-month-old mulberry plants at four levels of water stress.Leaf water potential was drastically decreased in all treatments.Though leaf area and relative water content were decreased,drastic decrease was observed only in very severe stress treatments.Proline accumulation was observed both in roots and leaves instress treatments; but accumulation was greater in roots thanin leaves. The enzymes, proline dehydrogenase and proline oxidase,were inhibited under stress conditions. Proline oxidase wasmore inhibited in roots than in leaves. The significance ofthe relative activities of these two enzymes is discussed. Key words: Water stress, proline dehydrogenase, proline oxidase |
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