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  • Title: A simple wax-embedding method for isolation of aphid hemolymph for detection of luteoviruses in the hemocoel.
    Author: Liu S, Bonning BC, Allen Miller W.
    Journal: J Virol Methods; 2006 Mar; 132(1-2):174-80. PubMed ID: 16307802.
    Abstract:
    A protocol for isolating hemolymph from viruliferous aphids has been developed. This method uses warm melted wax to immobilize the aphid. Following removal of a hind leg, the hemolymph can be collected readily. Flushing with RNase-free water allows for collection of sufficient hemolymph for RNA extraction from individual aphids. The extracted RNA was successfully used for detection of barley yellow dwarf virus (BYDV) and pea enation mosaic virus (PEMV) from individual viruliferous Rhopalosiphum padi and Acyrthosiphon pisum aphids, respectively. A TaqMan real-time RT-PCR protocol for quantitation of PEMV in the hemolymph of individual aphids was developed. The wax-embedding hemolymph collection technique provides a useful tool for studying molecular interactions between persistent and circulative plant viruses and their insect vectors.
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