《植物生理学报》 2010, 46(11): 1147-1150

马铃薯不同品种感染早疫病菌后防御酶活性变化

台莲梅¹, 梁伟伶², 左豫虎^1,*, 金光辉¹, 靳学慧¹

1 黑龙江八一农垦大学农学院, 黑龙江大庆 163319; 2 黑龙江八五六农场, 黑龙江虎林 158418

通信作者：左豫虎；E-mail: zuoyhu@163.com；Tel: 0459-8997858

摘　要：

通过测定抗性不同的马铃薯品种接种和未接种情况下叶片内防御酶活性, 研究马铃薯品种对早疫病的抗性机制。结果表明, 在接种处理后, 各品种植株体内苯丙氨酸解氨酶(PAL)、过氧化物酶(POD)、多酚氧化酶(PPO)和过氧化氢酶(CAT)活性均提高, 抗病品种酶活性增幅高于感病品种, 说明上述4种酶与品种抗性有一定的关联。

关键词：马铃薯; 早疫病菌; 防御酶; 抗病性

收稿：2010-07-11   修定：2010-08-22

资助：黑龙江省科技厅(GB01B201)。

Changes of Defensive Enzymes Activitiy in Different Resistant Potato Varieties after Inoculated with Alternaria solani

TAI Lian-Mei¹, LIANG Wei-Ling², ZUO Yu-Hu^1,*, JIN Guang-Hui¹, JIN Xue-Hui¹

¹College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China; ²856 of Farm, Heilongjiang Province, Hulin, Heilongjiang 158418 , China

Corresponding author: ZUO Yu-Hu; E-mail: zuoyhu@163.com; Tel: 0459-8997858

Abstract:

Activity of defensive enzymes of leaves in different resistant potato varieties after inoculation and non-inoculation was analyzed. The results showed that the activities of PAL, POD, PPO and CAT increased in all of varieties after inoculation. The increase of enzyme activities in resistance was higher than those in susceptible. Significantly PAL, POD, PPO and CAT in potato varieties were correlated with resistance to early blight.

Key words: potato; Alternaria solani; defensive enzymes; disease resistance