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β-exotoxin
相关语句
  β-外毒素
     Action of Bacillus thuringiensis B24-14 and its β-exotoxin on the parasitic nematodes of plant
     苏云金杆菌B24-14及其β-外毒素对植物寄生线虫的作用
短句来源
     thegermination rates of the seeds of Larix that dealed with 100 and 200 times liquid of β-exotoxin from B.t. subsp. thuringiensis are 30.2±2.02% and 31±2.78%;
     苏云金亚种β-外毒素100和200倍液处理的落叶松种子平均发芽率分别为30.2±2.02%和31±2.78%;
短句来源
     Toxicity Assay forβ-exotoxin of Bacillus thuringiensis Berliner to Dendrolimus superans Butler
     苏云金杆菌β-外毒素对落叶松毛虫的毒力测定
短句来源
     Seed activity of larch and toxicity of D. superans were determined using two strains ofβ-exotoxin from B.thuringien- sis,and a toxicity testing for B.thuringiensisβ-exotoxin to Telenomus tetratomus Thomson was also conducted. Result showed that B.thuringiensisβ-exotoxin can inhibit the germination rate of larch seeds.
     用两种苏云金杆菌β-外毒素对落叶松种子活性、落叶松毛虫毒力进行了测定,并且进行了苏云金杆茵β-外毒素对落叶松毛虫黑卵蜂的毒力试验,结果表明:苏云金杆菌β-外毒素对落叶松种子发芽率具有抑制作用,对落叶松毛虫幼虫致死率可迭69.7%,对落叶松毛虫黑卵蜂(Telenomus tetratomus Thomson)致死率达57.3%。
短句来源
  “β-exotoxin”译为未确定词的双语例句
     β-exotoxin produced by B24-14 was distilled by the technique of alcohol graded deposition.
     用乙醇分级沉淀和紫外扫描方法 ,提取B2 4 14菌株的 β 外毒素。
短句来源
     TOXICITY OF THURINGIENSIN(β-EXOTOXIN OF BACILLUS THURINGIENSIS)TO 13 INSECT
     苏云金素对几种农林卫生害虫的杀虫活性
短句来源
     Studies on Ecological Risk of Bacillus Thuringiensis β-exotoxin
     苏云金杆菌β-外毒素的生态安全性研究
短句来源
     With the methods of the ethanol sediment and ultraviolet ray scan, the β-exotoxin was extracted and identified from the fermentation broth of thestrain B24-14, it can kill the nematodes 93.6% at 8 hours.
     对B24-14菌株的防治作用机制研究中,采用乙醇分级沉淀法并结合紫外分光检测,从B24-14菌株的培养液中分离出β-外毒素,并通过液滴法及细胞培养板法试验,证明β-外毒素(4mg/ml)在8h时线虫的杀死率可以达到93.75%。
短句来源
     The synergism of thuringiensin, β-exotoxin of Bacillus thuringiensis (Bt), in the mixtures mixed separately with the endogenous crystal preparations of HD-1, CT-43, 81-6 and WP-2, on the larvae of diamond-back moth Plutella xylostella , were tested by diet infection method and analyzed by Sun-Johnson's toxicity index method.
     将苏云金素和苏云金杆菌的孢晶制剂分别作为单一制剂,用混和饲料感染法在室内测定苏云金素分别与苏云金杆菌HD—1、CT—43、81—6、WP—2等4个菌株孢晶制剂的混剂对小菜蛾幼虫的协同作用。
短句来源
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  相似匹配句对
     β?
     但是,与α? β?
短句来源
     β-Interferon
     β-干扰素
短句来源
     β-Methyldigoxin
     β-甲基狄戈辛
短句来源
     v)+β(t,x)u](?)
     +β(t,x)u]|(?)
短句来源
     The exotoxin or enterotoxigenic E.
     以幼鼠和成年鼠为试验动物 ,分别经腹腔注射细菌或外毒素。
短句来源
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  β-exotoxin
The method permits the analysis of β-exotoxin in insecticidal preparations in an amount of 1 μg and upwards.
      
The chromatography of β-exotoxin-containing preparations was performed on a column (1.6 × 150 mm) containing type 2632 anion-exchange resin (Hitachi) in a concentration gradient of HCl and NaCl.
      
A quantitative method is proposed for determining β-exotoxin, which is a product of the vital activity of certain serotypes ofBac.
      
Quantitative analysis of β-exotoxin in insecticidal preparations by high-performance anion-exchange chromatography
      
thuringiensis used (13B) being an active producer of both β-exotoxin and enterotoxin.
      
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A parasporal crystal forming Bacillus thuringiensis strain "SY01" was isolated from a dead larva of Dendrolimus spectabilis, found in a forest farm. This strain belongs to serotype H_(5a,5c). It's parasporal crystals are round. When it grows on the media (Egg Yolk agar, Potato plugs, Glucose-peptone agar, etc.), it's colonies are pink, and produces a β-exotoxin. Several characters of this strain differ from that of reference standard Bacillus subsp canadensis strain belonging to serotype H_(5a,5c).

“SY01”菌分自赤松毛虫(Dendrolimus Specfabilis)病死幼虫的干标本,是一株产圆形伴孢晶体的苏芸金杆菌。经血清学分析,属血清型H_(5a,5c)。但在形态、培养特征、生理生化反应、外毒素及苏芸金素产生上与H5a,5c的加拿大变种(B.t.subsp·canadensis)有明显差异。

The synergism of thuringiensin, β-exotoxin of Bacillus thuringiensis (Bt), in the mixtures mixed separately with the endogenous crystal preparations of HD-1, CT-43, 81-6 and WP-2, on the larvae of diamond-back moth Plutella xylostella , were tested by diet infection method and analyzed by Sun-Johnson's toxicity index method. The results showed that thuringiensin was synergistic to all the Bt crystal preparations, the co-toxi-city coefficient (CTC) ranged from 127. 43 - 415. 62. As endogenous crystal was...

The synergism of thuringiensin, β-exotoxin of Bacillus thuringiensis (Bt), in the mixtures mixed separately with the endogenous crystal preparations of HD-1, CT-43, 81-6 and WP-2, on the larvae of diamond-back moth Plutella xylostella , were tested by diet infection method and analyzed by Sun-Johnson's toxicity index method. The results showed that thuringiensin was synergistic to all the Bt crystal preparations, the co-toxi-city coefficient (CTC) ranged from 127. 43 - 415. 62. As endogenous crystal was dominant in the mixture, the optimum synergism, CTC=235. 31, occurred at the percentage that thuringiensin occupied 16. 7%(w/w) of the whole active components; contrarily, as thuringiensin was dominant, the optimum synergism, CTC=1021. 49, occurred at 100/10 (w/w) of the ratio of thuringiensin to Bt crystal. The synergism increased with the infection time on larvae. The highest synergism of thuringiensin in 3rd instar occurred at the end of this instar.

将苏云金素和苏云金杆菌的孢晶制剂分别作为单一制剂,用混和饲料感染法在室内测定苏云金素分别与苏云金杆菌HD—1、CT—43、81—6、WP—2等4个菌株孢晶制剂的混剂对小菜蛾幼虫的协同作用。按Sun—Johnson毒力指数法计算结果表明,苏云金素对所有供试菌的孢晶制剂都有增效作用,共毒系数从127.43至415.62不等。当混剂以芽孢晶体为主要活性组分时,苏云金素占全部活性组分的16.7%(w/w)情况下增效作用最强,共毒系数值235.31;当以苏云金素为混剂的主要活性组分时,苏云金素与芽孢晶体之比为100:10(w/w)情况下增效作用最强,共毒系数值可达1021.49。增效作用的大小因试虫感染毒物时间的长短而异。对于同是3龄的小菜蛾幼虫,苏云金素对3龄末期幼虫的增效作用最显著。

Testing on the culture supernatant of Bacillus thuringiensis GC 91 by bioassay and SDS PAGE, found that it has some synergistic action to Bt dust. The same supernatant may have different synergistic action on different Bt strains. For instance, the supernatant of GC 91 reacts quickly to GC 91 dust but slowly to HD 1 dust. Further research showed that this “synergiser” is thermostable and also stable at pH2-pH10. It is not β exotoxin, however.

利用生物测定,SDS-PAGE方法对苏云金杆菌GC-91发酵液的上清液进行了研究。研究表明,上清液中含有增效物质,离心丢弃上清液是导致毒力收率大幅度下降的根本原因。上清液对粉剂增效明显,本实验中最高增效倍数为23.5倍,且上清液对不同菌种粉剂增效力不同,对GC-91菌粉增效极为显著,对HD-1菌粉增效较为缓慢。上清液中含有的增效物质是一种热稳定物质,能耐15分钟沸水浴,在pH2~10范围内稳定,证明不是β-毒素

 
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