Article (Scientific journals)
Protein elicitor PeaT1 enhanced resistance against aphid (Sitobion avenae) in wheat
Li, Lin
2019In Pest Management Science
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Keywords :
PeaT1; aphid resistance; wheat; surface structure; SA; JA
Abstract :
[en] BACKGROUND Sitobion avenae, a dominant aphid in wheat that causes huge annual losses in agriculture, is mainly controlled using chemical pesticides. In this study, we investigated a protein elicitor, PeaT, for its induction of the defense response in wheat against Sitobion avenae. RESULTS Intrinsic rates of increase in second and third generations of S. avenae decreased in the PeaT1 (second generation 0.31 ± 0.01, third generation 0.28 ± 0.01) treatment compared with controls (second generation 0.28 ± 0.01, third generation 0.26 ± 0.01). S. avenae preferred to colonize control rather than PeaT1‐treated wheat seedlings in a host selection test. PeaT1‐treated wheat leaves possessed more trichomes and wax that formed a disadvantageous surface environment for S. avenae. Both salicylic acid (SA) and jasmonic acid (JA) accumulated significantly in PeaT1‐treated wheat seedlings. CONCLUSION These results showed that PeaT1 modified physical surface structures in wheat to reduce reproduction and deter colonization by S. avenae. SA and JA were involved in the induced physical defense process. This study provided evidence for use of PeaT1 as a ‘vaccine’ to protect wheat from Sitobion avenae. © 2019 Society of Chemical Industry
Disciplines :
Agriculture & agronomy
Author, co-author :
Li, Lin ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol. (Paysage)
Language :
English
Title :
Protein elicitor PeaT1 enhanced resistance against aphid (Sitobion avenae) in wheat
Publication date :
31 May 2019
Journal title :
Pest Management Science
ISSN :
1526-498X
eISSN :
1526-4998
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 July 2019

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