Lotmaria passim
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA62029 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| AHIJ01.dat.gz | Other | |||
| AHIJ01.fasta.gz | Fasta.gz | |||
| AHIJ01.master.dat | Other | |||
| JAQLRX01.dat.gz | Other |
Items per page: 5 1 - 5 of 16 |
Similar Datasets
Project description:This dataset contains nanoLC-MS/MS results of heads of honey bee workers. All the heads were from 13 days old bees that were 11 days postinfection (DPI) that lasted 24 hours. Abdomens of bees were analyzed using qPCR to determine parasite load. Further, corresponding selected heads were subjected to a label-free proteomic analysis. Overall, five heads of bees were selected from each of the following experimental exposures performed: i) control without L. passim and IMI exposure and with confirmed no L. passim detected; ii) bees positive for L. passim from the experimental exposure of L. passim; and iii) bees positive for L. passim from the experimental exposure of L. passim combined with 2.5 uL IMI coexposure. This research was supported by project no. QK1910018 (NAZV) and Institutional Support for R&D no. MZE-RO0423 of the Ministry of Agriculture of the Czech Republic.
| MSV000092818 | MassIVE
Project description:Honeybee health is a major ecological, agricultural and societal concern due to the critical role of these insects for plant reproduction and the massive losses of colonies observed within the last decade. The search for abiotic (e.g. pesticides) and biotic (e.g. pathogens) stressors is essential for understanding bee declines and design protection plans. Flagellated Trypanosomatid protozoan parasites and particularly Lotmaria passim, are widely distributed in honeybee colonies and have been associated with colony losses. However, little is known about their life cycles, routes for transmission and the strategies for survival inside and outside their hosts. Here we describe the proteome of L. passim Extracellular polymeric substances linked to secretion of Extracellular vesicles using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The EPS-EVs composition will provide clues on how these pathogens survive and spread in apiaries worldwide.
2024-02-15 | PXD040355 | Pride
Project description:WT and LpBBS2-deficient Lotmaria passim sequencing
| PRJNA1169641 | ENA
Project description:Lotmaria passim C3 and C2 genome sequencing and assembly
| PRJNA863431 | ENA
Project description:The microsporidia Nosema ceranae are intracellular parasites that proliferate in the midgut epithelial cells of honey bees (Apis mellifera). To analyze the pathological effects of those microsporidia, we orally infected honey bee workers 7 days after their emergence. Bees were flash frozen 15 days after the infection. Then, the effects on the gut ventriculi were analyzed and compared to non-infected (control) bees.
2012-05-23 | GSE25455 | GEO
Project description:Background: Honey bee is a major insect used for pollination of a number of commercial crops worldwide. However, the number of managed honey bee colonies has recently declined in several countries, and a number of possible causes are proposed. Although the use of honey bees for pollination can be considered as disruption of the habitat, its effects on honey bees' physiology have never been addressed. In Japan, more than 100 thousands colonies are annually used for pollination, and intriguingly 80% of them are used in greenhouses. Recently, honey bee colonies have often collapsed when they are introduced into greenhouses. Thus, to suppress colony collapses and maintain the number of worker bees in the colonies are essential for successful long-term pollination in greenhouses and recycling honey bee colonies.
2011-05-12 | GSE29252 | GEO
Project description:There were important gaps in our knowledge of Israeli acute paralysis virus (IAPV), when IAPV was tightly linked to bee Colony Collapse Disorder (CCD), the mysterious disease that, starting in 2006-2007, has been wiping out honey bees in the US. To fill in these gaps we studied the molecular basis of transmission, pathogenesis, and genetic diversity of IAPV infection in honey bees. We investigated the impact of IAPV infection on colony losses and host transcriptional response to IAPV infections, and exploited the potential of RNAi-based strategies for treating viral diseases in honey bees. Our study clearly shows that IAPV has become established as a persistent infection and is highly prevalent in the honey bee population. The existence of both horizontal and vertical transmission pathways of the virus likely accounts for the high prevalence of IAPV in bees. While IAPV is probably not the only culprit responsible for CCD, its ability to cause increased mortality in honey bees is firmly demonstrated. The phenotypic differences in pathology among different strains of IAPV may be due to their high level of standing genetic variation. The JAK-STAT pathway, along with other signaling events such as mTOR and MAPK pathways, likely involves honey bees’ antiviral immune responses to the IAPV infection. The identification of IAPV-encoded putative suppressor of RNAi and evidence that silencing the RNAi suppressor led to a significant reduction in IAPV replication in infected bees illustrates the therapeutic potential of targeting viral suppressor protein to reduce virus replication. Our study gives direction for developing strategies to reduce colony losses due to viral diseases.
2014-04-08 | GSE46278 | GEO
Project description:Two trypanosomatid species, Lotmaria passim and Crithidia mellificae, have been shown to parasitize honey bees to date. L. passim appears to be more prevalent than C. mellificae and specifically infects the honey bee hindgut. Although the genomic DNA has been sequenced, the effects of infection on honey bee health and colony are poorly understood. To identify the genes that are important for infecting honey bees and to understand their functions, we applied the CRISPR/Cas9 system to establish a method to manipulate L. passim genes. By electroporation of plasmid DNA and subsequent selection by drug, we first established an L. passim clone expressing tdTomato or Cas9. We also successfully disrupted the endogenous miltefosine transporter and tyrosine aminotransferase genes by replacement with drug (hygromycin) resistant gene using the CRISPR/Cas9-induced homology-directed repair pathway. The L. passim clone expressing fluorescent marker, as well as the simple method for editing specific genes, could become useful approaches to understand the underlying mechanisms of honey bee-trypanosomatid parasite interactions.
| S-EPMC6497781 | biostudies-literature
Project description:Background: Honey bee is a major insect used for pollination of a number of commercial crops worldwide. However, the number of managed honey bee colonies has recently declined in several countries, and a number of possible causes are proposed. Although the use of honey bees for pollination can be considered as disruption of the habitat, its effects on honey bees' physiology have never been addressed. In Japan, more than 100 thousands colonies are annually used for pollination, and intriguingly 80% of them are used in greenhouses. Recently, honey bee colonies have often collapsed when they are introduced into greenhouses. Thus, to suppress colony collapses and maintain the number of worker bees in the colonies are essential for successful long-term pollination in greenhouses and recycling honey bee colonies. Honey bee hives were installed into strawberry and eggplant greenhouses, and then the gene expression profiles of the honey bees were examined at the different time periods. Total 16 samples with two replicates were analyzed.
2011-05-12 | E-GEOD-29252 | biostudies-arrayexpress
Project description:Nosema ceranae and Lotmaria passim are two commonly encountered digestive tract parasites of the honey bee that have been associated with colony losses in Canada, the United States, and Europe. Though honey bees can be co-infected with these parasites, we still lack basic information regarding how they impact bee health at the individual and colony level. Using locally-isolated parasite strains, we investigated the effect of single and co-infections of these parasites on individual honey bee survival, and their responsiveness to sucrose. Results showed that a single N. ceranae infection is more virulent than both single L. passim infections and co-infections. Honey bees singly infected with N. ceranae reached < 50% survival eight days earlier than those inoculated with L. passim alone, and four days earlier than those inoculated with both parasites. Honey bees infected with either one, or both, parasites had increased responsiveness to sucrose compared to uninfected bees, which could correspond to higher levels of hunger and increased energetic stress. Together, these findings suggest that N. ceranae and L. passim pose threats to bee health, and that the beekeeping industry should monitor for both parasites in an effort correlate pathogen status with changes in colony-level productivity and survival.
| S-EPMC10728187 | biostudies-literature