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相关概念视频

Production of Biopesticides01:18

Production of Biopesticides

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Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
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相关实验视频

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Microinjection of Western Corn Rootworm, Diabrotica virgifera virgifera, Embryos for Germline Transformation, or CRISPR/Cas9 Genome Editing
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来自 Pseudomonas 的选择性杀虫蛋白,用于控制玉米根虫

Ute Schellenberger1, Jarred Oral1, Barbara A Rosen1

  • 1DuPont Pioneer, Hayward, CA 94545, USA.

Science (New York, N.Y.)
|October 7, 2016
PubMed
概括

来自Pseudomonas chlororaphis的新型杀虫蛋白IPD072Aa有效控制了西部玉米根虫 (WCR) 幼虫. 这一发现提供了一种对抗现有的Bacillus thuringiensis (Bt) 玉米品种的重要工具.

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科学领域:

  • 农业昆虫学
  • 分子生物学
  • 生物技术

背景情况:

  • 西方玉米根虫 (WCR) 是北美和欧洲的主要害虫.
  • 在玉米中对Bacillus thuringiensis (Bt) 蛋白质的昆虫耐药性限制了目前的控制策略.

研究的目的:

  • 识别和描述一种新型杀虫蛋白对WCR有效.
  • 评估表达这种新蛋白质的转基因玉米对WCR的疗效.

主要方法:

  • 来自Pseudomonas chlororaphis的杀虫蛋白IPD072Aa的分离和表征.
  • 开发表达IPD072Aa的转基因玉米植物
  • 实地试验以评估对WCR损伤的保护.

主要成果:

  • 表达IPD072Aa的转基因玉米显示出对WCR损伤的显著保护.
  • IPD072Aa有效杀死了WCR幼虫,包括对Bt蛋白质耐药的幼虫.
  • IPD072Aa对有益的鸟和半鸟物种没有不良影响.

结论:

  • IPD072Aa是一个有前途的新工具来管理WCR,特别是Bt耐药物种群.
  • 这种蛋白质可以在转基因玉米中用于提高作物保护策略.
  • 进一步的研究可能会探索IPD072Aa在害虫管理中的更广泛应用.