温度对绿僵菌菌株LA06、LD04生物学特性的影响  

EFFECT OF TEMPERATURE ON BIOLOGICAL CHARACTERS OF LA06 AND LD04,TWO METARHIZIUM ANISOPLIAE VAR ACRIDUM ISOLATES

作　　者：姚君明[1] 顾晓军[1] 问锦曾[2] 王海鸿[2] 雷仲仁[2] 

机构地区：[1]福建农林大学植物保护学院,福建福州350002 [2]中国农业科学院植物保护研究所,北京100094

出　　处：《武夷科学》2007年第1期6-12,共7页Wuyi Science Journal

基　　金：国家自然科学基金项目(30671407);国家科技支撑项目(2005BA529A01)资助

摘　　要：研究了温度对绿僵菌菌株LA06、LD04生物学特性的影响,结果表明:两菌株生长和产孢的适宜温度均在25-30℃;适温下LA06在第3d开始产孢,产孢量达6×107个/cm2,LD04则第7d才开始产孢,产孢量仅1×107个/cm2;两菌株均以30℃下孢子萌发最快,GT50分别为7.55 h和9.88 h;45℃下处理8 h后LA06孢子萌发率为45.35%,LD04则为0。LA06菌株在实际应用中具有较大潜力。The effect of temperature on the biological characters of two Metarhizium anisopliae var acridum isolates, LA06 and LD04, was studied. The results showed that the most suitable temperature for their colony growth and conidia production was ranged from 25℃ to 30℃. Within this range ,LA06 began to produce conidia on the 3^rd day and the density reached 6 × 10^7/cm^2 , but LD04 did not produce conidia until the 7^th day and the density was 1 × 10^7/cm^2. For the two isolates, conidia both germinated fastest at 30℃ and GT50, were 7.55h and 9.88h, respectively. After being pretreated at 45℃ for 8h, germination rate of LA06 conidia decreased to 45.35% but that of LD04 was completely inhibited. Summarily, the isolate LA06 had the possibility of being used in the field.

关 键 词：绿僵菌 温度 生物学特性 

分 类 号：S476-1[农业科学—农业昆虫与害虫防治]