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| The Effects of Drought Stress on Cell-Protecting Enzymes and Ultrastructure of Cauliflower Leaf Cells |
| Chen Guoju; Yang Xian; Wu Xiaoying |
| Department of Horticulture; South China Agricultural University; Guangzhou 510642; China |
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Abstract The differences of various cauliflower cultivars in leaf activities of peroxidiase and nitrate reductase and cell ultrastructure under drought stress were investigated. The results showed that under drought stress,POD activity in all cultivars increased while NR activity increased only in late maturing cultivars and decreased in early and mid maturing cultivars. The changes of chloroplasts and mitochondria also varied with cultivars. In early and mid maturing cultivars,the chloroplasts became more rou...
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Received: 12 April 2001
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