Abstract:
:The intensification of agriculture and the development of synthetic insecticides enabled worldwide grain production to more than double in the last third of the 20th century. However, the heavy dependence and, in some cases, overuse of insecticides has been responsible for negative environmental and ecological impacts across the globe, such as a reduction in biodiversity, insect resistance to insecticides, negative effects on nontarget species (e.g. natural enemies) and the development of secondary pests. The use of recombinant DNA technology to develop genetically engineered insect-resistant crops could mitigate many of the negative side effects of insecticides. One such genetic alteration enables crops to express toxic crystalline (Cry) proteins from the soil bacteria Bacillus thuringiensis (Bt). Despite the widespread adoption of Bt crops, there are still a range of unanswered questions concerning longer term agro-ecosystem interactions. For instance, insect species that are not susceptible to the expressed toxin can develop into secondary pests and cause significant damage to the crop. Here, we review the main causes surrounding secondary pest dynamics in Bt crops and the impact of such outbreaks. Regardless of the causes, if nonsusceptible secondary pest populations exceed economic thresholds, insecticide spraying could become the immediate solution at farmers' disposal, and the sustainable use of this genetic modification technology may be in jeopardy. Based on the literature, recommendations for future research are outlined that will help to improve the knowledge of the possible long-term ecological trophic interactions of employing this technology.
journal_name
Plant Biotechnol Jjournal_title
Plant biotechnology journalauthors
Catarino R,Ceddia G,Areal FJ,Park Jdoi
10.1111/pbi.12363subject
Has Abstractpub_date
2015-06-01 00:00:00pages
601-12issue
5eissn
1467-7644issn
1467-7652journal_volume
13pub_type
杂志文章,评审abstract::Drought conditions limit agricultural production by preventing crops from reaching their genetically predetermined maximum yields. Here, we present the results of field evaluations of rice overexpressing OsNAC9, a member of the rice NAC domain family. Root-specific (RCc3) and constitutive (GOS2) promoters were used to...
journal_title:Plant biotechnology journal
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journal_title:Plant biotechnology journal
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journal_title:Plant biotechnology journal
pub_type: 杂志文章
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journal_title:Plant biotechnology journal
pub_type: 杂志文章,评审
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journal_title:Plant biotechnology journal
pub_type: 杂志文章
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journal_title:Plant biotechnology journal
pub_type: 杂志文章
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更新日期:2011-01-01 00:00:00
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journal_title:Plant biotechnology journal
pub_type: 杂志文章
doi:10.1111/pbi.13541
更新日期:2021-01-01 00:00:00
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journal_title:Plant biotechnology journal
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doi:10.1111/pbi.12503
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1111/pbi.12888
更新日期:2018-08-01 00:00:00
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journal_title:Plant biotechnology journal
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doi:10.1111/j.1467-7652.2012.00733.x
更新日期:2012-12-01 00:00:00
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journal_title:Plant biotechnology journal
pub_type: 杂志文章
doi:10.1111/pbi.13065
更新日期:2019-07-01 00:00:00
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journal_title:Plant biotechnology journal
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journal_title:Plant biotechnology journal
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journal_title:Plant biotechnology journal
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journal_title:Plant biotechnology journal
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journal_title:Plant biotechnology journal
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pub_type: 杂志文章
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