Effects of HrpNEa on Inducing Aphid Repellency on Cucumis melo

doi:10.7668/hbnxb.2009.04.037

Abstract

Abstract: :It has been reported that HrpNEa could induce the insect resistance of Arabidopsis. Here we demonstrated that HrpNEa also showed potential to enhance the aphid repellency on Cucumis melo. The expression of AtPP22like gene ( lec17 and lec26) in Cucumis melo determined by RT2PCR and the callose deposition in phloem measured by aniline blue staining were both induced by HrpNEa. The action of aphids after placed on Cucumis melo indicated that HrpNEa could in2 duce insect resistance on Cucumis melo. EPG (electrical penetration graph) results revealed that HrpNEa could decrease the feeding frequency of aphids. Thus,we draw the conclusion that HrpNEa could enhance the resistance of Cucumis melo to aphids.

Key words: Cucumis melo, Aphid, Repellance

CLC Number:

S62.01

GOU Zhen-hua, ZHANG Shu-ping, DONG Han-song. Effects of HrpNEa on Inducing Aphid Repellency on Cucumis melo[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(4): 188-192. doi: 10.7668/hbnxb.2009.04.037.

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