作者: A.R. Forbes
DOI: 10.1016/B978-0-12-327550-9.50008-2
关键词: Arthropod mouthparts 、 Labrum 、 Duct (anatomy) 、 Anatomy 、 Transmission of plant viruses 、 Stylet 、 Plant tissue 、 Alimentary tract 、 Aphid 、 Biology
摘要: Publisher Summary This chapter discusses the mouthparts and feeding mechanism of aphids. The aphid's method is principal reason why they are such a successful group important pests to agriculture. aphids perfectly adapted for piercing plant tissue extracting sap food, also direct means acquisition transmission viruses. advent scanning electron microscopes has further increased knowledge aphid mouthparts. alimentary tract begins as food canal between apposed maxillary stylets. opens into tubular functional mouth pharyngeal duct that leads directly lumen sucking or cibarial pump. formed from median groove in hypopharynx covered by epipharyngeal wall. consist two pairs flexible stylets: (1) labrum (2) labium. Associated with complex well-developed salivary system. short triangular, suspended anteclypeus covering base labium stylet bundle. most conspicuous It tubular, segmented organ deep along its anterior surface containing