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Gembloux Agro-Bio Tech (GxABT)
Gembloux Agro-Bio Tech (GxABT)
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Evaluation of feeding behaviour of Acyrtosiphon Pisum Harris (Aphididae) clones according to changes of plant growth promoting Rhizobacteria occurrence on host plant in Chile

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Quaghebeur, Céleste ULiège
Promotor(s) : Francis, Frédéric ULiège ; Ramirez, Claudio
Date of defense : 31-Aug-2018 • Permalink : http://hdl.handle.net/2268.2/6034
Details
Title : Evaluation of feeding behaviour of Acyrtosiphon Pisum Harris (Aphididae) clones according to changes of plant growth promoting Rhizobacteria occurrence on host plant in Chile
Author : Quaghebeur, Céleste ULiège
Date of defense  : 31-Aug-2018
Advisor(s) : Francis, Frédéric ULiège
Ramirez, Claudio 
Committee's member(s) : Ongena, Marc ULiège
Delaplace, Pierre ULiège
Beckers, Yves ULiège
Serteyn, Laurent ULiège
Language : English
Keywords : [fr] electropenetrography, EPG, induced systemic resistance, ISR, salicylic acid, jasmonic acid, IAA
Discipline(s) : Life sciences > Entomology & pest control
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en bioingénieur : sciences agronomiques, à finalité spécialisée
Faculty: Master thesis of the Gembloux Agro-Bio Tech (GxABT)

Abstract

[fr] The pea aphid (Acyrthosiphon pisum Harris) is known to be a pest of significant economic importance and is widely dispersed in Chile. Nowadays, the pest management is oriented to a limited utilisation of synthetic insecticides and by this way avoid the development of insect resistances. There are many alternatives to achieve this objective such as the biological control. The plant growth-promoting rhizobacteria (PGPR) are soil organism that increase rates of plant growth but which can also have an effect of biological control on pest insects. The objective of this thesis is to assess if the PGPR-induced plant defence’s has an effect on different APA populations (Acyrthosiphon pisum with alfalfa host-plant). The population parameters, and the feeding behaviour were studied. Moreover, the plant responses were also measured (hormone profile analysis, and photosynthesis and morphological parameters). For all the experiments, broad bean (Vicia faba L.) plants were previously inoculated with the PGPR Bacillus amyloliquefaciens FZB42. Seven-days inoculated plants were infested with the two clones of APA, different between them by the occurrence of the secondary endosymbiont Hamiltonella defensa. At the end of all experiments, it was highlighted that the aphid without the secondary endosymbiont seems to be negatively impacted by the PGPR. Contrary, the clone with the endosymbiont seems to be, in a first time, favoured by this Bacillus but this effect did not remain until the end of the experiment.


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Author

  • Quaghebeur, Céleste ULiège Université de Liège > Gembloux Agro-Bio Tech

Promotor(s)

Committee's member(s)

  • Ongena, Marc ULiège Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbial, food and biobased technologies
    ORBi View his publications on ORBi
  • Delaplace, Pierre ULiège Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions végétales et valorisation
    ORBi View his publications on ORBi
  • Beckers, Yves ULiège Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
    ORBi View his publications on ORBi
  • Serteyn, Laurent ULiège Université de Liège - ULiège >
    ORBi View his publications on ORBi
  • Total number of views 108
  • Total number of downloads 17










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