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Front Plant Sci

Title:		A Plant-Feeding Nematode Indirectly Increases the Fitness of an Aphid
Author(s):		Hoysted GA; Lilley CJ; Field KJ; Dickinson M; Hartley SE; Urwin PE;
Address:		"Centre for Plant Sciences, University of Leeds, Leeds, United Kingdom. FERA Science Ltd., York, United Kingdom. Department of Biology, University of York, York, United Kingdom"
Journal Title:		Front Plant Sci
Year:		2017
Volume:		20171103
Issue:
Page Number:		1897 -
DOI:		10.3389/fpls.2017.01897
ISSN/ISBN:		1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking)
Abstract:		"Plants suffer multiple, simultaneous assaults from above and below ground. In the laboratory, pests and/or pathogen attack are commonly studied on an individual basis. The molecular response of the plant to attack from multiple organisms and the interaction of different defense pathways is unclear. The inducible systemic responses of the potato (Solanum tuberosum L.) host plant were analyzed to characterize the plant-mediated indirect interactions between a sedentary, endoparasitic nematode (Globodera pallida), and a phloem-sucking herbivore (Myzus persicae). The reproductive success of M. persicae was greater on potato plants pre-infected with G. pallida compared to control plants. Salicylic acid (SA) increased systemically in the leaves of potato plants following nematode and aphid infection singly with a corresponding increase in expression of SA-mediated marker genes. An increase in jasmonic acid associated with aphid infection was suppressed when plants were co-infected with nematodes. Our data suggests a positive, asymmetric interaction between a sedentary endoparasitic nematode and a sap-sucking insect. The systemic response of the potato plant following infection with G. pallida indirectly influences the performance of M. persicae. This work reveals additional secondary benefits of controlling individual crop pests"
Keywords:		aboveground-belowground interactions aphids induced defenses jasmonic acid plant parasitic nematodes salicylic acid;
Notes:		"PubMed-not-MEDLINEHoysted, Grace A Lilley, Catherine J Field, Katie J Dickinson, Michael Hartley, Sue E Urwin, Peter E eng Switzerland 2017/12/07 Front Plant Sci. 2017 Nov 3; 8:1897. doi: 10.3389/fpls.2017.01897. eCollection 2017"