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bt maize
相关语句
  bt基因玉米
     Advances in the eco-safety researches of transgenic Bt maize
     转Bt基因玉米的生态安全性研究进展
短句来源
     Evaluation of transgenic Bt maize for resistance to cotton ballworm
     转Bt基因玉米对棉铃虫的抗性评价
短句来源
  “bt maize”译为未确定词的双语例句
     Genetic Analysis of a New Type of Maize CMS Obtained from the Offspring of Transgenic Bt Maize
     转Bt基因后代玉米新不育胞质A的遗传分析
短句来源
     Transgenic Bt maize and transgenic herbicide-resistant maize are successfully developed.
     目前在玉米上的成功应用是抗玉米螟的Bt转基因玉米、抗除草剂转基因玉米等种类。
短句来源
     Inheritance and Fitness Costs of Resistance to Transgenic Bt Maize Expressing Cry1Ab Toxin in Ostrinia Furnacalis (Lepidoptera: Crambidae)
     亚洲玉米螟对表达Cry1Ab杀虫蛋白抗虫玉米的抗性遗传及其生物学适应性
短句来源
     And Bt maize root exudates and plant that incomplete body release to kill worm crystal albumen keep 180d abating worm’s activation at least of the soil.
     而Bt玉米根系分泌物和植株残体释放的杀虫晶体蛋白在土壤中至少保持180d杀虫活性。
短句来源
     Resistant Reactions to Insecticidal Transgenic Bt Maize and Bt Cotton in Helicoverpa armigera H(?)bner
     棉铃虫对转Bt基因抗虫玉米和抗虫棉的抗性反应研究
短句来源
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  相似匹配句对
     Bt.
     Bt.
短句来源
     For Bt.
     Bt.
短句来源
     The resistance of Bt transgenic maize to Ostrinia furnacalis
     转Bt基因玉米对亚洲玉米螟的抗性
     Resistance of Bt Transgenic Maize to Ostrinia furnacalis
     转Bt基因玉米对亚洲玉米螟的抗性研究
短句来源
     and maize cross.
     与玉米杂交导入一个小麦加倍单倍体 (DH)植株中。
短句来源
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  bt maize
We explain in more detail how the environmental risk assessment of two Bt maize dossiers (maize Bt11 and 1507) were considered by the GMO Panel in the evaluation of the PMEM plan and the consequences for the environmental monitoring plan.
      
Insect Resistance Monitoring for Bt Maize Cultivation in the EU: Proposal from the Industry IRM Working Group
      
Generally, year-to-year changes in environmental conditions, field characteristics, and population dynamics had much stronger effects on the arthropod community than the use of Bt maize.
      
Six-year monitoring of non-target arthropods in Bt maize (Cry 1Ab) in the European corn borer (Ostrinia nubilalis) infestation a
      
Overall, changes in the herbivore-induced volatile profiles of Bt maize appeared to be a consequence of altered larval feeding behavior rather than of changes in biochemical plant defense pathways.
      
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s:Techniques such as Agrobacteria,particulate gun and PEG inducing techniques are often adopted in maize transgenic research,While vigorous part such as callus and yong embryo typically are used as acceptance.Transgenic Bt maize and transgenic herbicide-resistant maize are successfully developed.World wide conscious to environmental pollution protection and feed chains remains obstacle to Transgenic maize application.

玉米转基因的方法主要有农杆菌、基因枪、PEG介导等方法 ,受体主要是愈伤组织和幼胚等生活较旺盛的部位。目前在玉米上的成功应用是抗玉米螟的Bt转基因玉米、抗除草剂转基因玉米等种类。转基因技术目前面临的问题是关于环境和食物链的问题。也就未来玉米的转基因发展进行了讨论。

Comparing the quantities of corn borer eggs,damaged plants,and some animal species groups living in Bt maize and ordinary maize(Danyu 13).We came to the conclusion that Bt maize has better resistance to corn borers,which is enduring and steady.Besides,we found that the Bt maize has little or no effect on Non Lepidopterous and other animals. We suppose that Bt maize will do no harm to ecological enviroment of the field.

通过比较Bt转基因玉米和常规玉米 (丹玉 13号 )的玉米螟卵量、被害株数及田间一些动物的种群数量 ,结果表明 :Bt转基因玉米对玉米螟具有较高的抗性 ,而且这种作用是持久的、稳定的。另外还发现 ,Bt转基因玉米对非鳞翅目昆虫及其他动物的影响甚微 ,可以认为Bt转基因玉米对田间生态环境是安全的

Along with the large-scale release of transgenic crops, their possible ecological risks have been paid an increasing attention. The research on eco-safety of transgenic Bt maize was commented from the following two aspects: (1) Effect of Bt toxin produced by transgenic Bt maize on soil eco-systemResearches on the persistence of purified Bt toxin in soil showed that it could be adsorbed by or bound on soil surface-active particles rapidly, and remained its larvicidal activity. The adsorbed...

Along with the large-scale release of transgenic crops, their possible ecological risks have been paid an increasing attention. The research on eco-safety of transgenic Bt maize was commented from the following two aspects: (1) Effect of Bt toxin produced by transgenic Bt maize on soil eco-systemResearches on the persistence of purified Bt toxin in soil showed that it could be adsorbed by or bound on soil surface-active particles rapidly, and remained its larvicidal activity. The adsorbed or bound toxin had a higher resistance to degradation than the free one. Other researches with root exudates and crop residues showed that the Bt toxin from transgenic Bt maize tissue bio-degraded faster than the purified toxin, while that in root exudates and from Bt maize biomass remained its larvicidal activity for at least 180 days. The plant component of Bt crops may be varied as a result of exogenous Bt gene transferring. A study showed that Bt maize had a higher lignin content than its isogenic non-Bt maize. Thus, the slower decomposition of the Bt maize biomass may result in a longer persistence of the Bt toxin in soil, and thereby, may enhance its hazard to non-target organisms, and result in the selection and enrichment of toxin-resistant target insects. Till now, there are some researches indicating that the population level and species composition of soil microorganisms were varied after transgenic Bt crops release, but there also have some researches showing that the toxin released from Bt maize roots and biomass appeared to have no deleterious effect on earthworms, nematodes, and microorganisms in soil.(2) Effect of Bt maize pollen on non-target insectsWhether the non-target insects hazard from the Bt toxin expressed in Bt maize pollen is associated with Bt maize pollen (the type, amount and toxicity of its produced protein), feeding plants (their distribution and proportion in cornfield, and the deposition of pollen on them) , and non-target insects (their instars, and the susceptibility of their larvae to the Bt protein). Most researches showed that the only transgenic maize pollen that consistently affected monarch larvae was from Cry1Ab event 176 hybrids, but the pollen from Cry1Ab (events Bt11 and Mon 810), Cry1 F, and experimental Cry 9C hybrids had no acute effects on monarch butterfly larvae in field settings. In comparison with the threats posed to insects by the application of pesticides and other farming practices, the widespread release of Bt maize may have huge benefits for environment, monarch butterfly and other insects survival. At present, the researches on the effect of Bt maize pollen on non-target insects are turned from describing assessment into quantitative characterization, and the results are acceptable. Due to the complexity and heterogeneity of soil, the effects of Bt protein on it are still not studied profoundly. However, with the advance in recent methodology, especially the introduction of molecular biological techniques, this study will be strengthened further more.

随着转基因作物的应用和推广 ,转 Bt基因作物释放后对生态环境及其它方面产生的潜在影响越来越受到重视。分别从生物活性杀虫晶体蛋白在土壤中的残留特性、杀虫晶体蛋白对土壤中非目标生物的影响、转 Bt基因玉米植株体成分的变化、转Bt基因玉米花粉中杀虫晶体蛋白的表达特性及其在田间和马力筋叶片上的散积状况、花粉中表达的杀虫晶体蛋白对君主斑蝶的毒性、君主斑蝶幼虫暴露在 Bt花粉中的概率及综合风险评价估算等方面对转 Bt基因玉米产生的杀虫晶体蛋白与土壤生态环境的相互作用、花粉对非目标生物影响的研究现状进行了综述。通过对转 Bt基因作物生态安全性的科学评价和广泛宣传 ,以确保生物技术的健康发展。

 
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