烟草叶片感染野火病时的某些生理生化变化

Physiological-Biochemical Changes of Tobacco Leaves Infected Wold Fire Disease

烟草感染野火病严重地影响了叶片的代谢状况，使光合色素（尤其是叶绿素）含量降低，干物质积累减少，可溶性糖和可溶性蛋白的含量下降，硝酸还原酶活性降低，而过氧化物酶活性却明显提高。

Metabolic circumstances of tobacco leaves are significantly affected by tobacco wold fire disease.Photosynthetic pigment(especially chloriphyll) content,accumulation of dry matter,soluble sugar content and soluble protein content,activaty of nitrate reductase are decreased, but activaty of Peroxidase is sisnificantly increased.