Top-Down and Bottom-up Effects in Rhizosphere-Plant-Aphid Interactions

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class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 88663</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Top-Down and Bottom-up Effects in Rhizosphere-Plant-Aphid Interactions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anas%20Cherqui">Anas Cherqui</a>, <a href="https://publications.waset.org/abstracts/search?q=Audrey%20Pecourt"> Audrey Pecourt</a>, <a href="https://publications.waset.org/abstracts/search?q=Manuella%20Catterou"> Manuella Catterou</a>, <a href="https://publications.waset.org/abstracts/search?q=Candice%20Mazoyon"> Candice Mazoyon</a>, <a href="https://publications.waset.org/abstracts/search?q=Herv%C3%A9%20Demailly"> Herv茅 Demailly</a>, <a href="https://publications.waset.org/abstracts/search?q=Vivien%20Sarazin"> Vivien Sarazin</a>, <a href="https://publications.waset.org/abstracts/search?q=Fr%C3%A9d%C3%A9ric%20Dubois"> Fr茅d茅ric Dubois</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%A9r%C3%B4me%20Duclercq"> J茅r么me Duclercq</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aphids are pests that can cause severe yield losses in field crops. Chemical control is currently widely used to control aphids, but this method is increasingly controversial. The pea is able to recruit bacteria that are beneficial to its development, growth and health. However, the effects of this microbial recruitment on plant-insect interactions have generally been underestimated. This study investigated the interactions between Pisum sativum, key bacteria of pea rhizosphere (Rhizobium and Sphingomonas species) and the pea aphid, Acyrthosiphon pisum. We assessed the bottom-up effects of single and combined bacterial inoculations on pea plant health and subsequent aphid performance, as well as the top-down effects of aphid infestation on soil functionality. The presence of S. sediminicola or S. daechungensis limited the fecundity of the pea aphid without strongly affecting its feeding behaviour. Nevertheless, these bacteria limited the effect of A. pisum on the plant phenotype. In addition, the aphid infestation decreased the soil functionality, suggesting a potential strategy to hinder the recruitment of beneficial microorganisms. <iframe src="https://publications.waset.org/abstracts/191373.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Acyrthosiphon%20pisum" title="Acyrthosiphon pisum">Acyrthosiphon pisum</a>, <a href="https://publications.waset.org/abstracts/search?q=Pisum%20sativum" title=" Pisum sativum"> Pisum sativum</a>, <a href="https://publications.waset.org/abstracts/search?q=Sphingomonas" title=" Sphingomonas"> Sphingomonas</a>, <a href="https://publications.waset.org/abstracts/search?q=rhizobium" title=" rhizobium"> rhizobium</a>, <a href="https://publications.waset.org/abstracts/search?q=EPG" title=" EPG"> EPG</a>, <a href="https://publications.waset.org/abstracts/search?q=productivity" title=" productivity"> productivity</a> </p> <a href="https://publications.waset.org/abstracts/191373/top-down-and-bottom-up-effects-in-rhizosphere-plant-aphid-interactions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/191373.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">28</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> 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Top-Down and Bottom-up Effects in Rhizosphere-Plant-Aphid Interactions