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grey pine
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  松灰
     The virulence of 2 strains, MGS980404-21 of esterase type 05 and MGS980510-06 of esterase type 06, and artificially released Bb13 of esterase type 02 were high,while the the virulence of another strain,MGS980507-34 of esterase type 02,isolated from the grey pine weevil,Brachyderes incanus was low, but it was a prevailing strain in the pine ecosystem.
     如从松灰象甲上分离出的不同酯酶型的 2株白僵菌[MGS980404 -21(酯酶型 05),MGS980510 -06(酯酶型 06) ]和人工释放的酯酶型 02菌株Bb13毒力都很高,而从松灰象甲分离出的与释放菌株属同一酯酶型的另一个菌株MGS980507 -34,毒力虽然很低,但却是林间最常见的流行菌株。
短句来源
     The esterase type 2 was assigned including 18 other strains from 11 different host insects,indicating that the released strain had successfully survived in different insect populations and persisted in enzootic condition in 12 insect populations including pine caterpillars and grey pine weevils.
     释放菌株所属的酯酶型 0 2包括从 11种昆虫上分离出的 18个菌株 ,表明林间释放的菌株已成功地在不同寄主昆虫种群中宿存下来 ,并以常发的地方病状态存在于松毛虫及松灰象甲等 12种昆虫种群之中 ;
短句来源
  相似匹配句对
     On grey function
     灰色函数
短句来源
     grey resampling;
     影象灰度的重采样;
短句来源
     Long Period Frediction of the Outbreak of Pine Caterpilllar by Grey Calamity Forecasting
     马尾松毛虫大发生灰色灾变超长期预测
短句来源
     ,pine(Pinus sp.)
     、软木松(Pinus sp.)
短句来源
     pine tar 8;
     松焦油8;
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  grey pine
The relative growth rate (RGR) of grey pine aphid [Schizolachnus pineti (F.)] responded positively to the increase in foliar nitrogen content.
      
Performance of grey pine aphid, Schizolachnus pineti, on ectomycorrhizal and non-mycorrhizal Scots pine seedlings at different l
      
Pauesia unilachni is a parasitoid of the grey pine aphid, Schizolachnus pineti which feeds on needles of Scots pine.
      


In an anniversary investigation post inoculative release of Beauveria bassiana against Masson's pine caterpillars in a Masson's pine plantation,119 strains were isolated from 30 host insects,soil,litter and air.Based on an esterase isozyme analysis,all these strains were assigned to 32 esterase types,suggesting abundant genetic diversity.The esterase type 2 was assigned including 18 other strains from 11 different host insects,indicating that the released strain had successfully survived in different insect...

In an anniversary investigation post inoculative release of Beauveria bassiana against Masson's pine caterpillars in a Masson's pine plantation,119 strains were isolated from 30 host insects,soil,litter and air.Based on an esterase isozyme analysis,all these strains were assigned to 32 esterase types,suggesting abundant genetic diversity.The esterase type 2 was assigned including 18 other strains from 11 different host insects,indicating that the released strain had successfully survived in different insect populations and persisted in enzootic condition in 12 insect populations including pine caterpillars and grey pine weevils.Other host insects could maintain the food chain when the target insect population was low.The other esterase types included 1~23 strains.The anniversary host transfer dynamics further revealed that B.bassiana could transfer among different host insects in the pine ecosystem.The virulence of the strains of each esterase differed substantially,which suggested that B.bassiana persisted and dispersed along more than one route,and each esterase stood for at least one branch in the food web.Some hosts connected different esterase types at nodal points,making the food web very complicated.In addition,the strains isolated from soil,litter,forest crown and air belonged to different esterase types,suggesting that a complex of saprophytic food chains existed in the plantation,which made the food web more complicated,and benefited the sustainable control of the Masson's pine caterpillar and other pest insects in the ecosystem.

通过林间接种式放菌及其后一周年的野外调查 ,从林间采集到 30种寄主昆虫及从土壤、落叶和气流中分离到 119株球孢白僵菌 .酯酶同工酶分析表明 ,它们属于 32个不同酯酶型 ,呈现出丰富的遗传多样性 .释放菌株所属的酯酶型 0 2包括从 11种昆虫上分离出的 18个菌株 ,表明林间释放的菌株已成功地在不同寄主昆虫种群中宿存下来 ,并以常发的地方病状态存在于松毛虫及松灰象甲等 12种昆虫种群之中 ;当林间目标寄主缺乏时 ,其它寄主可将食物链维系下去 .其它酯酶型分别包括 1~ 2 3个菌株 .一周年内的寄主转移动态结果表明 ,球孢白僵菌在松林生态系统中不同寄主间可转移寄生 .每个酯酶型中的菌株对松毛虫的毒力相差很大 .表明球孢白僵菌在松林中的延续和扩散流行不是 1条路线 ,每个酯酶型至少代表食物网上的 1条支链 .有些环节的寄主连接了不同的酯酶型 ,使松林中食物网变得十分复杂 .另外 ,从土壤、枯枝落叶层、林冠层和空气中分离到的球孢白僵菌分属于不同的酯酶型 ,表明松林中还存在着复杂的腐生食物链 ,有利于松毛虫及其它害虫的持续控制

Virulence of 16 Beauveria bassiana strains belonging to 12 esterase types on the pine caterpillar was tested in a bioassay.The result showed that virulence of strains in different esterase types differed significantly with LT_(50) difference up to several times.The virulence of strains in the same esterase type also changed obviously after host transfer. The virulence of 2 strains, MGS980404-21 of esterase type 05 and MGS980510-06 of esterase type 06, and artificially released Bb13 of esterase type 02 were high,while...

Virulence of 16 Beauveria bassiana strains belonging to 12 esterase types on the pine caterpillar was tested in a bioassay.The result showed that virulence of strains in different esterase types differed significantly with LT_(50) difference up to several times.The virulence of strains in the same esterase type also changed obviously after host transfer. The virulence of 2 strains, MGS980404-21 of esterase type 05 and MGS980510-06 of esterase type 06, and artificially released Bb13 of esterase type 02 were high,while the the virulence of another strain,MGS980507-34 of esterase type 02,isolated from the grey pine weevil,Brachyderes incanus was low, but it was a prevailing strain in the pine ecosystem.The above results provide evidence for understanding survival of B.bassiana in forest, especially long-term persistence when the pine caterpillar population was at very low level,as well as for sieving of virulent strains.

对 12个酯酶型的 16株白僵菌进行了毒力生物测定。结果表明,不同酯酶型株系对松毛虫的毒力差异显著,LT50可相差数倍;同一酯酶型株系经不同寄主转移后,其毒力也发生了较明显的变化。如从松灰象甲上分离出的不同酯酶型的 2株白僵菌[MGS980404 -21(酯酶型 05),MGS980510 -06(酯酶型 06) ]和人工释放的酯酶型 02菌株Bb13毒力都很高,而从松灰象甲分离出的与释放菌株属同一酯酶型的另一个菌株MGS980507 -34,毒力虽然很低,但却是林间最常见的流行菌株。上述结果理解为白僵菌在林间的宿存,尤其是它在松毛虫低虫口状态下能在林间长期宿存不绝的原因,以及对于从林间采集筛选高毒菌株提供了可能。

 
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