Nosema spp. infections cause no energetic stress in tolerant honeybees

Show simple item record Kurze, Christoph Mayack, Christopher Hirche, Frank Stangl, Gabriele I. Le Conte, Yves Kryger, Per Moritz, Robin F.A. 2016-07-21T07:53:56Z 2016-06
dc.description.abstract Host-pathogen coevolution leads to reciprocal adaptations, allowing pathogens to increase host exploitation or hosts to minimise costs of infection. As pathogen resistance is often associated with considerable costs, tolerance may be an evolutionary alternative. Here, we examined the effect of two closely related and highly host dependent intracellular gut pathogens, Nosema apis and Nosema ceranae, on the energetic state in Nosema tolerant and sensitive honeybees facing the infection. We quantified the three major haemolymph carbohydrates fructose, glucose, and trehalose using high-performance liquid chromatography (HPLC) as a measure for host energetic state. Trehalose levels in the haemolymph were negatively associated with N. apis infection intensity and with N. ceranae infection regardless of the infection intensity in sensitive honeybees. Nevertheless, there was no such association in Nosema spp. infected tolerant honeybees. These findings suggest that energy availability in tolerant honeybees was not compromised by the infection. This result obtained at the individual level may also have implications at the colony level where workers in spite of a Nosema infection can still perform as well as healthy bees, maintaining colony efficiency and productivity. en_ZA
dc.description.department Zoology and Entomology en_ZA
dc.description.embargo 2017-06-30
dc.description.librarian hb2016 en_ZA
dc.description.sponsorship The Deutsche Forschungsgemeinschaft DFG priority programme SPP 1399 ―Host-parasite co-evolution‖ (grant number MO373/26- 2). en_ZA
dc.description.uri en_ZA
dc.identifier.citation Kurze, C, Mayack, C, Hirche, F, Stangl, GI, Le Conte, Y, Kryger, P & Moritz, RFA 2016, 'Nosema spp. infections cause no energetic stress in tolerant honeybees', Parasitology Research, vol. 115, no. 6, pp. 2381-2388. en_ZA
dc.identifier.issn 0932-0113 (print)
dc.identifier.issn 1432-1955(online)
dc.identifier.other 10.1007/s00436-016-4988-3
dc.language.iso en en_ZA
dc.publisher Springer en_ZA
dc.rights © Springer-Verlag 2016. The original publication is available at : http://link.springer.comjournal/436. en_ZA
dc.subject Host-parasite interaction en_ZA
dc.subject Immune response en_ZA
dc.subject Energetic stress en_ZA
dc.subject Adaptation fitness cost en_ZA
dc.subject High-performance liquid chromatography (HPLC) en_ZA
dc.title Nosema spp. infections cause no energetic stress in tolerant honeybees en_ZA
dc.type Postprint Article en_ZA

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