Bacterial Infection Increases Reproductive Investment in Burying Beetles.
Bacterial Infection Increases Reproductive Investment in Burying Beetles.
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DOI：
10.3390/insects6040926
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发表时间：
2015-10-30
期刊：
影响因子：
3
通讯作者：
Cotter SC
中科院分区：
文献类型：
--
作者：
Reavey CE;Silva FW;Cotter SC
Nicrophorus 属在微生物丰富的环境中生活和繁殖。因此，预计应制定策略来应对该环境中常见微生物的潜在负面影响。在这项研究中，我们展示了 Nicrophorus vespilloides 对常见土壤细菌枯草芽孢杆菌的反应。酚氧化酶 (PO) 水平不会因挑战而上调，并且观察到细菌在宿主的血淋巴内繁殖。尽管枯草芽孢杆菌在生长，但无论是处女甲虫还是正在繁殖的甲虫，其生存都没有受到影响。血淋巴中细菌生长似乎确实发生了一些限制，这表明除了耐受机制之外还存在抵抗机制。尽管对个体的有害影响有限，但枯草芽孢杆菌的挑战似乎可以作为增加生殖投资的线索。这一挑战可能表明一系列不利的环境条件可能会损害未来的繁殖机会。这可以作为增加父母在当前比赛中投资的线索。
The Nicrophorus genus lives and breeds in a microbe rich environment. As such, it would be expected that strategies should be in place to counter potentially negative effects of the microbes common to this environment. In this study, we show the response of Nicrophorus vespilloides to the common soil bacterium, Bacillus subtilis. Phenoloxidase (PO) levels are not upregulated in response to the challenge and the bacteria are observed to multiply within the haemolymph of the host. Despite the growth of B. subtilis, survival is not affected, either in virgin or in breeding beetles. Some limit on bacterial growth in the haemolymph does seem to be occurring, suggesting mechanisms of resistance, in addition to tolerance mechanisms. Despite limited detrimental effects on the individual, the challenge by Bacillus subtilis appears to act as a cue to increase reproductive investment. The challenge may indicate a suite of negative environmental conditions that could compromise future breeding opportunities. This could act as a cue to increase parental investment in the current bout.