Besnoitia

Mehlhorn, Heinz

doi:10.1007/978-3-319-70132-5_7

Cited by 2 publications

(2 citation statements)

References 57 publications

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“…The genus Besnoitia has 10 nominal species, although it is mostly known due to B. besnoiti , which parasitizes cattle and results in important economic losses [ 42 ]. Parasites of this genus have been recorded in different species of large and small mammals, which act as intermediate hosts, although some records have also been found in reptiles [ 42 , 43 ]. Our isolate ( Besnoitia sp.…”

Section: Discussionmentioning

confidence: 99%

“…R34) was positioned into a clade of Besnoitia species associated with rodents, marsupials, and lagomorphs [ 44 ]. This genotype formed a well-supported clade with B. jellisoni , a species that uses North American rodents as intermediate hosts [ 43 , 45 ], and Besnoitia akodoni , which was isolated from a South American rodent [ 5 ]. This evidence suggests a specific clade associated with rodents, supporting the hypothesis of a host–parasite interaction rather than an accidental finding.…”

Section: Discussionmentioning

confidence: 99%

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Survey and Molecular Characterization of Sarcocystidae protozoa in Wild Cricetid Rodents from Central and Southern Chile

Oyarzún‐Ruiz

Thomas

Santodomingo

et al. 2023

Animals

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In Chile, studies of parasites from the family Sarcocystidae (Apicomplexa) have mostly been related to domestic animals. We aimed to assess the presence of Sarcocystidae taxa in cricetid rodents from Central and Southern Chile. We studied 207 rodents, encompassing six species, from 13 localities. We isolated DNA from tissue samples, amplified the Sarcocystidae 18S rRNA gene with polymerase chain reaction, and performed phylogenetic analyses using maximum likelihood and Bayesian inferences. In addition, we examined blood smears and performed histological studies in organs from Sarcocystidae DNA-positive animals. Three specimens were DNA-positive and three genotypes were retrieved and named: Sarcocystis sp. P61, related to Sarcocystis strixi, was detected in two Abrothrix olivacea. Toxoplasmatinae gen. sp. P99 was retrieved from those same two specimens, and was related to Toxoplasma and other genera, although it branched independently. Besnoitia sp. R34 was detected in one Abrothrix hirta, and was clustered with congeneric species associated with rodents. No protozoa were found during microscopic studies; thus, it was not possible to confirm parasitic interactions rather than accidental encounters. However, the close relatedness of the retrieved genotypes to parasites of rodents supports the hypothesis of host–parasite associations. All three genotypes are suggested as potential new taxa, including a putative new genus.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Survey and Molecular Characterization of Sarcocystidae protozoa in Wild Cricetid Rodents from Central and Southern Chile

Oyarzún‐Ruiz

Thomas

Santodomingo

et al. 2023

Animals

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Pursuing effective vaccines against cattle diseases caused by apicomplexan protozoa

Florín-Christensen¹

2021

CABI Reviews

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Apicomplexan parasites are responsible for important livestock diseases that affect the production of much needed protein resources, and those transmissible to humans pose a public health risk. Vaccines, recognized as a cost-effective and environmentally friendly method for the prevention of infectious diseases in livestock, can avert losses in food production and decrease the exposure of humans to zoonotic pathogens. This review focuses on the need for and advances in vaccine development against the apicomplexan parasites Theileria spp., Babesia spp., Toxoplasma gondii, Neospora caninum, Eimeria spp., Besnoitia spp., Sarcocystis spp., and Cryptosporidium parvum. Together, the effect of these parasites on the cattle industry worldwide causes an enormous burden, yet they remain poorly controlled and very few effective and practical vaccines against them are available. Vaccine development is hampered by our scarce and limited knowledge of the biology and mechanisms of pathogenesis of these microorganisms, and the absence of correlates of host immune protection. More studies focused on these aspects as well as on the identification of parasite vulnerabilities that can be exploited for vaccine design are needed. Novel "omics" and gene editing approaches in understanding complex parasite biology together with advances in vaccinology will facilitate the development of effective, sustainable, and practical vaccines against cattle diseases caused by apicomplexan parasites. Such vaccines will help prevent animal and human diseases and allow production of enough animal protein to feed the growing human population in the twenty-first century and beyond.

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Besnoitia

Cited by 2 publications

References 57 publications

Survey and Molecular Characterization of Sarcocystidae protozoa in Wild Cricetid Rodents from Central and Southern Chile

Survey and Molecular Characterization of Sarcocystidae protozoa in Wild Cricetid Rodents from Central and Southern Chile

Pursuing effective vaccines against cattle diseases caused by apicomplexan protozoa

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