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Journal of Agriculture ›› 2017, Vol. 7 ›› Issue (8): 48-54.doi: 10.11923/j.issn.2095-4050.cjas17030047

Special Issue: 烟草种植与生产

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Tobacco Resistance Mechanism to Insect Herbivores: Research Progress

  

  • Received:2017-03-31 Revised:2017-06-12 Accepted:2017-06-27 Online:2017-08-22 Published:2017-08-22

Abstract: Tobacco is one of the important economic crops in China. The tobacco pest species have reached more than 300 in China, which severely restrict the production of tobacco. Plant insect resistance is the most cost-effective means to control pests. To better understand current researches on tobacco resistance to pest at home and abroad, this review summarized basic composition of tobacco resistance to pests and induced chemical defense, signal pathways and molecular mechanisms. It was suggested that the main pests on tobacco had been transformed from the Lepidoptera pests to the sucking pests. However, the researches on tobacco insect resistance and resistance breeding aimed at single pest at home and abroad. Therefore, the study on comprehensive resistance to different pests and the breeding of multi- resistant varieties should be strengthened. At the same time, it was pointed out that photosynthesis was a systematic reaction of plant defense against insects. In the process of improving the tobacco resistance to insect and tobacco resistance breeding, the primary metabolic process of tobacco, especially photosynthesis, should also be the focus. Study on tobacco resistance to insects should be carried out with multi-disciplinary combination, to elaborate the issue from a number of perspectives, especially plant physiology, molecular biology, tobacco cultivation and tobacco breeding.

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