Journal
COMPTES RENDUS BIOLOGIES
Volume 333, Issue 6-7, Pages 516-523Publisher
ACAD SCIENCES
DOI: 10.1016/j.crvi.2010.03.007
Keywords
Plant-aphid compatible interaction; Plant defence; Metabolism reprogramming; Local and systemic responses; Primary metabolism; Phloem tube occlusion
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To access phloem sap, aphids have developed a furtive strategy, their stylets progressing towards sieve tubes mainly through the apoplasmic compartment. Aphid feeding requires that they overcome a number of plant responses, ranging from sieve tube occlusion and activation of phytohormone-signalling pathways to expression of anti-insect molecules. In addition to bypassing plant defences, aphids have been shown to affect plant primary metabolism, which could be a strategy to improve phloem sap composition in nutrients required for their growth. During compatible interactions, leading to successful feeding and reproduction, aphids cause alterations in their host plant, including morphological changes, modified resource allocation and various local as well as systemic symptoms. Repeated salivary secretions injected from the first probe in the epidermal tissue up to ingestion of sieve-tube sap may play a crucial role in the compatibility between the aphid and the plant. (C) 2010 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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