甜菜抗(耐)丛根病生理基础的研究(Ⅰ) 过氧化物酶(POX)、多酚氧化酶(PPO)、苯丙氨酸解氨酶(PAL)与甜菜抗丛根病的关系

STUDIES ON THE PHYSIOLOGY BASIS OF RESISTANCE(TOLERANCE) TO RHIZOMANIA IN SUGARBEET I. RELATION BETWEEN ACTIVITIES OF POX,PPO,PAL AND RESISTANCE TO RHIZOMANIA

本文从比较生理学角度，研究了甜菜抗丛根病特性与其体内有关防御酶系的关系，结果表明，甜菜感病后，ＰＯＸ酶活性增加与抗病性有关，特别是ＰＡＬ 活性提高与抗病性呈正相关，可作为病地上和无病地上选育抗（耐） 丛根病品种的重要生理指标。

The relation between character of resistance to rhizomania and defense enzyme in sugarbeet were studied .The results showed:after the sugarbeet was infected with rhizomania, the resistance to rhizomania was relatd with increase of activities of POX and PAL.espeicialy was positive related with PAL s increase of activity. The variation of their activitier could be used as index to select sugarbeet breed of resistance(tolerance)to rhizomania in sick soil and sickless siol.