Journal of Food, Agriculture and Environment

Vol 9, Issue 2,2011
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Resistance of stored rice without lipoxygenase-3 against confused flour beetle, Tribolium confusum du Val (Coleoptera: Tenebrionidae) and its underlying mechanisms


Qingfeng Tang 1*, Binmei Liu 2, Yuejin Wu 2

Recieved Date: 2011-01-18, Accepted Date: 2011-03-30


Tribolium confusum du Val (Coleoptera: Tenebrionidae) adults responded positively to volatiles emitted from stored rice with LOX-3 in choice between stored rice with LOX-3 and stored rice without LOX-3. However, there was no significant difference when having the choice between fresh rice with LOX-3 and fresh rice without LOX-3. Results from experiment of development assay showed the development and reproductive success of T. confusum was not influenced by rice grain LOX-3 presence or absence. The results indicated that the loss of LOX-3 was quite related to the tropism of T. confusum, the main volatile pentanal of rice grains during storage might be attractant to T. confusum. By summing up above results, we can conclude that rice grain’s volatiles produced by LOX-3 during storage are attractant to T. confusum, if LOX-3 is absent, that would affect the tropism of T. confusum.


Rice, lipoxygenase-3, Tribolium confusum du Val, resistance mechanisms

Journal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 2
Category: Agriculture
Pages: 225-229

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