Entomologia Experimentalis et Applicata (2013) 147, 293-300

Shi-Ze Zhang, Hong Huang, Hong-Wei Shan, Fan Zhang, Fang-Hao Wan and Tong-Xian Liu (2013)
Defense against Pieris rapae in cabbage plants induced by Bemisia tabaci biotype B
Entomologia Experimentalis et Applicata 147 (3), 293-300
Abstract: Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) and Pieris rapae L. (Lepidoptera: Pieridae) are serious pests of vegetables, that can occur simultaneously on a single cabbage plant [Brassica oleracea var. capitata L. (Brassicaceae)]. We determined whether pre-feeding or infestation by B. tabaci on cabbage could induce physiological and biochemical responses of the plant against P. rapae. Developmental time, length, and weight of immature P. rapae, and defense-related plant compounds (SOD, superoxide dismutase; POD, peroxidase; CAT, catalase; APX, ascorbate peroxidase) were measured. Development of P. rapae larvae was 21% slower on B. tabaci-pre-infested plants than on plants without B. tabaci infestation. When feeding on B. tabaci-pre-infested plants, 22% of P. rapae larvae pupated as compared with 83% on B. tabaci-free plants. Weights of P. rapae from first to fourth instars that fed on B. tabaci-pre-infested plants were also reduced, whereas those of fifth instars and pupae were not. Similarly, body length of P. rapae from first to fourth instars was affected by B. tabaci pre-infestation, whereas that of the fifth instars was not. Peroxidase and APX activities of the B. tabaci-pre-infested plants increased more than SOD and CAT. Peroxidase and SOD activities of B. tabaci and P. rapae co-infested plants increased as compared with those of P. rapae-infested plants; however, CAT and APX activities were not different between B. tabaci- and P. rapae-infested plants. These results showed that B. tabaci infestation had a negative effect on P. rapae when they occurred simultaneously on the same host plant. The implications of the induced plant changes on the herbivore are discussed.
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Link to article at publishers website
Database assignments for author(s): Tong Xian Liu, Fang Hao Wan, Shi-Ze Zhang

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci biotype MEAM1	Cabbage (Brassica oleracea)
	Pieris rapae	Cabbage (Brassica oleracea)