ENHANCED MOSQUITO BLOOD-FINDING SUCCESS ON PARASITEMIC HOSTS - EVIDENCE FOR VECTOR PARASITE MUTUALISM
ENHANCED MOSQUITO BLOOD-FINDING SUCCESS ON PARASITEMIC HOSTS - EVIDENCE FOR VECTOR PARASITE MUTUALISM
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DOI：
10.1073/pnas.82.22.7725
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发表时间：
1985-01-01
影响因子：
11.1
通讯作者：
BAILEY, CL
中科院分区：
文献类型：
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作者：
ROSSIGNOL, PA;RIBEIRO, JMC;BAILEY, CL
在被病媒传播的病原体感染的动物中经常发现的普遍血液病理学可能通过增强病媒在受感染宿主中定位血液的能力来最大限度地传播。我们通过比较以未感染的蚊子和感染了疟疾(查鲍迪疟原虫)或虫媒病毒(裂谷热病毒)的动物为食的蚊子的探测时间，测试了寄生虫和媒介之间的互惠关系。我们发现，与未感染的啮齿动物相比，受感染的啮齿动物的探测(血液位置)的中位持续时间至少减少了1分钟。这种病媒定位血液的能力增强，可能是由寄生虫破坏的止血引起的，可能是病媒传播疾病的共同特征。
The generalized hematopathology frequently found in animals infected with vector-borne pathogens may maximize transmission by enhancing the ability of vectors to locate blood in infected hosts. We tested this idea of mutualism between parasite and vector by comparing duration of probing of mosquitoes feeding on noninfected and on malaria-(Plasmodium chabaudi) or arbovirus- (Rift Valley fever virus) infected animals. We found that median duration of probing (blood location) on infected rodents was reduced by at least 1 min as compared to noninfected rodents. This enhanced ability of vectors to locate blood, possibly caused by parasite-disrupted hemostasis, may be a common feature of vector-borne diseases.