陈玉惠,翟志军,胡海燕,周彤燊,谢开立
CHEN Yu hui DI Zhi jun HU Hai yan (Basis Department of Southwest Forestry College;Kunmin 650244;China) ZHOU Tong shen XIE Kai li (Resource Department of Southwest Forestry College;Kunmin 650244;China);

• 1:西南林学院基础部!云南昆明650224
• 2:西南林学院基础部!云南昆明650224
• 3:西南林学院基础部!云南昆明650224
• 4:西南林学院资源学院!云南昆明650224

摘要(Abstract)：

用不同浓度的聚乙二醇 (PEG6 0 0 0 )对华山松幼苗进行诱导水分胁迫 ,树皮的相对膨胀度 (RT值 )随PEG浓度的增大而下降 ;且树皮内的酚类物质含量、多酚氧化酶 (PPO)活性和苯丙氨酸解氨酶 (PAL)活性均有所降低 ,过氧化物酶 (POD)活性升高。说明水分状况直接影响着华山松的抗病性。4种酚类物质抑菌试验表明 ,一定浓度下酚类物质对腐烂病病原菌松黑腐皮壳 (ValsapiniFr .)菌丝体生长有抑制作用 ,以香草醛和邻苯二酚抑菌能力最强
The seedlings of Pinus armandii were treated with different concentration of polyethylene glycol 6000(PEG 6000).The relative turgidity(RT)and phenols content,phenylalanine ammonialyase(PAL),polyphenol oxidase(PPO)and peroxidase(POD)activities of tree barks were tested under water stress.The results showed that RT decreased with the increase of PEG concentration.Phenols content,the activities of PAL and PPO were positively correlated with RT,but negative correlation was found between POD activity and RT.The armandii pine's water condition affects directly the resistance to disease( Valsa pini Fr.) The results of phenols inhibiting Valsa pini growth were also reported.In four kinds of phenols,vanillin and pyrocatechol reduced the pathogen growth most obviously.

关键词(KeyWords)： 水分胁迫;相对膨胀度;酚类物质;抗病能力;华山松
Water stress,Relative turgidity,Phenols resistance to disease, Pinus armandii

Abstract:

Keywords:

基金项目(Foundation): 大面积人工纯林病虫害发生发展规律及综合治理研究 ;; 云南省重点基金项目

作者(Authors): 陈玉惠,翟志军,胡海燕,周彤燊,谢开立
CHEN Yu hui DI Zhi jun HU Hai yan (Basis Department of Southwest Forestry College;Kunmin 650244;China) ZHOU Tong shen XIE Kai li (Resource Department of Southwest Forestry College;Kunmin 650244;China);

DOI: 10.16779/j.cnki.1003-5508.2001.03.001

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