锈寄生菌对落叶松褐锈病的抑制效应  

Inhibiting Effect of Sphaerellopsis filum on Triphragmiopsis laricinum

作　　者：康殿仲 韩玉才 钟传东 何小雨 牛玉良 魏作全[5] 

机构地区：[1]沈阳市东陵区农林局,辽宁沈阳110100 [2]辽宁新宾赵家林场,辽宁抚顺113200 [3]辽宁新宾三道关林场 [4]北宁市林业局,辽宁锦州121300 [5]沈阳农业大学,辽宁沈阳110161

出　　处：《沈阳农业大学学报》1999年第4期423-425,共3页Journal of Shenyang Agricultural University

基　　金：国家自然科学基金!39070709

摘　　要：目测及镜检表明，褐锈病菌被锈寄生菌寄生后，夏孢子堆由桔红色渐变为灰褐色，后期夏孢子失去发芽力，孢子堆原基处只存有寄生首的分生孢子器。锈寄生菌的发酵液代谢产物中含有３种抗生物质。自７月中、下旬至９月中、下旬，分生孢子的发生量多于褐锈菌的孢子量，表明褐锈病的发生程度随着锈寄生菌寄生率的增加而减轻。Ocular and microscopic obervations showed that when T. laricinum was parasitized by S. filum, thecolour of its urediosporus changed from reddish orange to grey brown. At later stage, the uredio-spores lose theirgerthenating ability, and only S. filum conidia were found at uredinoid matrix. The metabolic products in fermentationliquid of S. filum contained three resistant substances. From the second ten days of July to the second ten daysof september, the amount of conidia was more than that of urediosPOres, indicating that the infered level byT. laricinum decreases with the increase of parasitic rate of S. filum.

关 键 词：锈寄生菌 寄主 落叶松褐锈菌 

分 类 号：S763.11[农业科学—森林保护学] S763.712.2[农业科学—林学]