Prevalence of Spiroplasma and interaction with wild Glossina tachinoides microbiota.

IF 2.3 2区 医学 Q2 PARASITOLOGY Parasite Pub Date : 2023-01-01 Epub Date: 2023-12-19 DOI:10.1051/parasite/2023064
Kiswend-Sida M Dera, Mouhamadou M Dieng, Percy Moyaba, Gisele Ms Ouedraogo, Soumaïla Pagabeleguem, Flobert Njokou, François S Ngambia Freitas, Chantel J de Beer, Robert L Mach, Marc Jb Vreysen, Adly Mm Abd-Alla
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Abstract

Tsetse flies (Diptera: Glossinidae) are vectors of the tropical neglected diseases sleeping sickness in humans and nagana in animals. The elimination of these diseases is linked to control of the vector. The sterile insect technique (SIT) is an environment-friendly method that has been shown to be effective when applied in an area-wide integrated pest management approach. However, as irradiated males conserve their vectorial competence, there is the potential risk of trypanosome transmission with their release in the field. Analyzing the interaction between the tsetse fly and its microbiota, and between different microbiota and the trypanosome, might provide important information to enhance the fly's resistance to trypanosome infection. This study on the prevalence of Spiroplasma in wild populations of seven tsetse species from East, West, Central and Southern Africa showed that Spiroplasma is present only in Glossina fuscipes fuscipes and Glossina tachinoides. In G. tachinoides, a significant deviation from independence in co-infection with Spiroplasma and Trypanosoma spp. was observed. Moreover, Spiroplasma infections seem to significantly reduce the density of the trypanosomes, suggesting that Spiroplasma might enhance tsetse fly's refractoriness to the trypanosome infections. This finding might be useful to reduce risks associated with the release of sterile males during SIT implementation in trypanosome endemic areas.

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螺旋体的流行以及与野生 Glossina tachinoides 微生物群的相互作用。
采采蝇(双翅目:齿蝇科)是被忽视的热带疾病人类昏睡病和动物纳加纳病的病媒。消除这些疾病与控制病媒有关。昆虫不育技术(SIT)是一种环境友好型方法,在整个地区范围内采用虫害综合治理方法时已被证明是有效的。然而,由于经过辐照的雄虫保持着传病能力,因此将其释放到田间存在锥虫传播的潜在风险。分析采采蝇与其微生物群之间的相互作用,以及不同微生物群与锥虫之间的相互作用,可能会为提高采采蝇对锥虫感染的抵抗力提供重要信息。这项关于东非、西非、中非和南部非洲 7 种采采蝇野生种群中螺浆虫流行率的研究表明,螺浆虫只存在于 Glossina fuscipes fuscipes 和 Glossina tachinoides 中。在 G. tachinoides 中,观察到螺浆虫和锥虫的共同感染显著偏离了独立性。此外,螺浆虫感染似乎大大降低了锥虫的密度,这表明螺浆虫可能会增强采采蝇对锥虫感染的抵抗力。这一发现可能有助于降低在锥虫流行地区实施 SIT 期间释放不育雄蝇所带来的风险。
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来源期刊
Parasite
Parasite 医学-寄生虫学
CiteScore
5.50
自引率
6.90%
发文量
49
审稿时长
3 months
期刊介绍: Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools. All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
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