Article (Scientific journals)
Protein elicitor PeaT1 efficiently controlled barley yellow dwarf virus in wheat
Li, Lin; Wang, Shuangchao; Yang, Xiufen et al.
2019In Agriculture
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Keywords :
barley yellow dwarf virus; protein elicitor; PeaT1; EPG; virus transmission ability;; virus proliferation
Abstract :
[en] Barley yellow dwarf virus (BYDV), transmitted by the wheat aphid, generates serious wheat yellow dwarf disease and causes great losses in agriculture. Induced resistance has attracted great attention over recent years as a biological method to control plant pathogens and herbivores. Protein elicitor PeaT1 induces defense response in plants against fungi, viruses, and aphids. In this study, wheat seeds and seedlings were soaked and sprayed with 30 g/mL PeaT1, respectively. Then seedlings were inoculated with BYDV by viruliferous Schizaphis graminum to detect the control e ciency of PeaT1-induced resistance against BYDV. The control e ciency was over 30% on the 14th and 21st days after the inoculation access period. Quantitative real time polymerase chain reaction (Q-RT-PCR) tests showed that there was less mRNA from the BYDV coat protein in PeaT1-treated wheat seedlings than in the control group. Electrical penetration graph (EPG) tests showed that virus transmission vector S.graminum took a longer time to find probe and feeding sites on PeaT1-treated wheat seedlings. Additionally, PeaT1-treated wheat seedlings gained higher plant height and more chlorophyll a&b. These results showed that PeaT1 e ciently controlled BYDV by inhibiting BYDV proliferation, reducing the virus transmission ability of S. graminum and alleviating the symptoms of dwarfism and yellow colouring caused by BYDV. This study provided a new integrated way to control BYDV biologically.
Research center :
Institute of Plant Protection, Chinese Academy of Agricultural Sciences
Disciplines :
Agriculture & agronomy
Author, co-author :
Li, Lin ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol. (Paysage)
Wang, Shuangchao
Yang, Xiufen
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Qiu, Dewen
Language :
English
Title :
Protein elicitor PeaT1 efficiently controlled barley yellow dwarf virus in wheat
Publication date :
06 September 2019
Journal title :
Agriculture
eISSN :
2077-0472
Publisher :
MDPI AG, Basel, Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
National Key R&D Program of China
Available on ORBi :
since 19 September 2019

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