Varroa destructorfeeds primarily on honey bee fat body tissue and not hemolymph

Proceedings of the National Academy of Sciences of the United States of America - Tập 116 Số 5 - Trang 1792-1801 - 2019
Samuel Ramsey1, Ronald Ochoa2, Gary R. Bauchan3, Connor J. Gulbronson4, Joseph Mowery3, Allen Carson Cohen5, David Lim1, Judith Joklik1, Joseph M. Cicero6, Jamie Ellis6, David J. Hawthorne1, Dennis vanEngelsdorp1
1Department of Entomology, University of Maryland, College Park, MD 20742;
2Agricultural Research Service, Systematic Entomology Laboratory, United States Department of Agriculture, Beltsville, MD 20705;
3Agricultural Research Service, Soybean Genomics & Improvement Laboratory, Electron and Confocal Microscopy Unit, United States Department of Agriculture, Beltsville, MD 20705;
4Agricultural Research Service, Floral and Nursery Plant Research Unit, Electron and Confocal Microscopy Unit, United States Department of Agriculture, Beltsville, MD 20705;
5Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695;
6Entomology and Nematology Department, University of Florida, Gainesville, FL 32611

Tóm tắt

SignificanceVarroa destructorcauses considerable damage to honey bees and subsequently the field of apiculture through just one process: feeding. For five decades, we have believed that these mites consume hemolymph like a tick consumes blood, and thatVarroacause harm primarily by vectoring viruses. Our work shows that they cause damage more directly.Varroaexternally digest and consume fat body tissue rather than blood. These findings explain the failure of some previous attempts at developing effectively targeted treatment strategies forVarroacontrol. Furthermore, it provides some explanation for the diverse array of debilitating pathologies associated withVarroathat were unexplained by hemolymph removal alone. Our work provides a path forward for the development of novel treatment strategies forVarroa.

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Proceedings of the National Academy of Sciences of the United States of America

Tập 116 Số 5

1792-1801

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