Effect of some nitrogenous salts on nitrogen transfer and protease activity in germinatingZea mays L. seeds |
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| Authors: | Bandana Bose H S Srivastava S N Mathur |
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| Institution: | 1. Plant Physiology Research Laboratory, Department of Botany, University of Gorakhpur, Gorakhpur (U.P.), India
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| Abstract: | Maize seeds were allowed to germinate in the presence of different nitrogenous salts for 72 h. Changes in the ethanol soluble and insoluble nitrogen were studied in the embryo and in the endosperm. Supply of Ca(NC3)2 enhanced germination and protease activity in the endosperm resulting in greater solubilisation of protein to soluble nitrogen in the seeds. NH4NO3 and (NH4)2SO4 were less effective as compared to Ca(NO3)2. Cycloheximide inhibited germination and protease activity. Pretreatment also resulted in increase in growth, soluble and insoluble nitrogen, and nitrate reductase activity in the primary leaves. Ca(NO3)2 was more effective than NH4NO3 and (NH4)2SO4. |
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