云杉落针病几个生理生化指标的变化  

Pathological changes of physiological and biochemical indexes in Picea balfouriana with needle cast

作　　者：杨春琳[1] 许秀兰[1] 徐明庆 刘应高[1] 

机构地区：[1]四川农业大学林学院,四川雅安625014 [2]攀枝花市东区林业局,四川攀枝花617067

出　　处：《湖南农业大学学报（自然科学版）》2015年第2期161-166,共6页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：四川省教育厅重点项目(09ZA068)

摘　　要：以四川马厂梁林场川西云杉(Picea balfouriana)为研究对象,探讨云杉落针病发病的生理生化变化规律。设置3个海拔高度(2 590、2 690、2 790 m)样地,进行病害调查,每样地按云杉发病程度分4个病级,分级采集1年生针叶,测定针叶各生理生化指标。病害调查发现,海拔越高,云杉落针病发病越严重。生理生化测定结果表明,云杉落针病发病越严重,POD、PPO和PAL酶活性偏高,MDA含量增加,叶绿素b和总叶绿素含量减少。Picea balfouriana in Machangliang Forest Farm was observed to discuss its physiological and biochemistry change regulations when infected with needle cast. Three sample plots were selected in the farm and the disease was investigated. The needles were classified into four grades based on the disease level. One-year-old needles were collected at each disease degree to measure the physiological and biochemical indexes. The results show that the disease is more serious at higher altitude region. And the activities of POD, PPO, PAL and the concentration of MDA were high in more seriously diseased needles, but the concentration of chlorophyll b and chlorophyll a＋b were low.

关 键 词：川西云杉 落针病 生理生化指标 

分 类 号：S791.189[农业科学—林木遗传育种]