Suppressing aflatoxin biosynthesis is not a breakthrough if not useful.

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ID: 77044
2018
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Abstract
Liver-affecting, carcinogenic aflatoxins produced by Aspergillus spp. are a major problem, especially in the humid developing world where storage conditions are often optimal for the fungi. Peanuts and maize have been transformed with RNAi constructs targeting Aspergillus flavus polyketide-synthase, an early key enzyme in aflatoxin biosynthesis. Aflatoxin biosynthesis was suppressed in developing immature grain, less so in late maturing grain, and it is doubtful that the technology will be effective in near dry mature grain. The infected grain was still mouldy. As Aspergillus that infects grain preharvest can continue to grow and produce aflatoxin in poorly stored grain, and grain storage insects vector further infections, this technology seems to have little potential utility in the humid tropics. The biotechnological approaches of RNAi directly targeting Aspergillus, coupled with transgenic insecticidal proteins should be far more effective. These biotechnological approaches can be used in tandem with the RNAi against polyketide-synthase, as well as with irradiation, biocontrol and better grain drying and hermetic dry storage in a controlled atmosphere. © 2017 Society of Chemical Industry.
Reference Key
gressel2018suppressingpest Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Gressel, Jonathan;Polturak, Guy;
Journal Pest management science
Year 2018
DOI
10.1002/ps.4694
URL
Keywords
aflatoxin maize peanut aspergillus spp. rnai, polyketide-synthase

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