Specificity determinants for Cry insecticidal proteins: Insights from their mode of action
نویسندگان
چکیده
منابع مشابه
Specificity determinants for Cry insecticidal proteins: Insights from their mode of action.
Insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) are used as active components of biopesticides and as plant incorporated protectants in transgenic crops. One of the most relevant attributes of these Bt protein-based insecticidal technologies is their high specificity, which assures lack of detrimental effects on non-target insects, vertebrates and the environment. The ident...
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Bacillus thuringiensis bacteria are insect pathogens that produce different Cry and Cyt toxins to kill their hosts. Here we review the group of three-domain Cry (3d-Cry) toxins. Expression of these 3d-Cry toxins in transgenic crops has contributed to efficient control of insect pests and a reduction in the use of chemical insecticides. The mode of action of 3d-Cry toxins involves sequential int...
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Honey bee pollination is a key ecosystem service to nature and agriculture. However, biosafety research on genetically modified crops rarely considers effects on nurse bees from intact colonies, even though they receive and primarily process the largest amount of pollen. The objective of this study was to analyze the response of nurse bees and their gut bacteria to pollen from Bt maize expressi...
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Action research is a small-scale intervention in the functioning of the real world to address practitioners’ own issues and carry out a close examination of the effects of such an intervention. Classroom-based research, or action research, can be the viable solution to some pandemic academic sluggishness and scientific apathy. However, the erroneous impression that research is an elite discipli...
متن کاملWhy Bacillus thuringiensis insecticidal toxins are so effective: unique features of their mode of action.
The spore-forming bacterium Bacillus thuringiensis produces intracellular inclusions comprised of protoxins active on several orders of insects. These highly effective and specific toxins have great potential in agriculture and for the control of disease-related insect vectors. Inclusions ingested by larvae are solubilized and converted to active toxins in the midgut. There are two major classe...
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ژورنال
عنوان ژورنال: Journal of Invertebrate Pathology
سال: 2017
ISSN: 0022-2011
DOI: 10.1016/j.jip.2016.07.018