Project description:The natural histories of various parasite-host interactions that involve adaptive manipulation of host behavior describe a time-of-day synchronization of certain events. One example is the manipulated biting behavior observed in Carpenter ants infected with Ophiocordyceps unilateralis sensu lato. Field observations in Thailand demonstrated that manipulated biting takes place around solar noon. Laboratory work with species from South Carolina, demonstrated a shift of this synchronized biting event to the early morning. We therefore hypothesize that biological clocks play an important role in these and other parasite-host interactions. To set the stage for our future research into this, we, here, aimed to explore if fungal species of the complex O. unilateralis s.l. have a functional molecular clock. We, therefore, performed RNA-Seq on time course samples of the recently sequenced species Ophiocordyceps kimflemingiae. Fungal blastospores grown in liquid media were harvested under cycling light-dark and continuous darkness conditions. Rhythmic mRNA levels were assessed with JTK_CYCLE. We found that O. kimflemingiae is not hugely rhythmic under our sampling conditions, but rhythmicity can be observed. Moreover, we identified functional homologs of known clock genes. In addition, our data indicated that regulation of transcription appears to take place during the light phase (day time). In contrast, the expression levels of a significant number of secreted enzymes, proteases, toxins and small bioactive compounds peaked during the dark phase (night time). This suggests that this fungal parasite might indeed rely on biological clocks for the precise daily timing of certain events and additionally validates further research into this.

2017-10-21 | GSE101312 | GEO

Ophiocordyceps camponoti-leonardi

Project description:Species of Ophiocordyceps unilateralis sensu lato complex Genome sequencing and assembly

| PRJNA407765 | ENA

GNPS - Euphorbiaceae sensu lato New Caledonia

Project description:EtOAc extracts of New Caledonian Euphorbiaceae sensu lato - DDA LC-MS/MS analysis run in positive ionisation mode.

| MSV000086113 | GNPS

Borrelia burgdorferi sensu lato

Project description:Borrelia burgdorferi species complex population genomics study with the focus on Borrelia garinii.

| PRJNA662729 | ENA

Proteomic profiling and characterization of differential allergens in the nematodes Anisakis simplex sensu stricto and A. pegreffii

Project description:The parasite species complex Anisakis simplex sensu lato (Anisakis simplex sensu stricto; (A. simplex s.s.), A. pegreffii, A. simplex C) is the main cause of severe anisakiasis (allergy) worldwide and is now an important health matter. In this study, the relationship of this Anisakis species complex and their allergenic capacities is assessed by studying the differences between the two most frequent species (A. simplex s.s., A. pegreffii) and their hybrid haplotype by studying active L3 larvae parasiting Merluccius merluccius.

2014-07-11 | PXD000662 | Pride

Identification of the differences between gene expression in normal human dermal fibroblasts (NHDF cell line) infected with Borrelia burgdorferi sensu lato spirochetes

Project description:The similarity of Lyme borreliosis to other diseases and the complex pathogenesis cause diagnostic and therapeutic difficulties. Changes at the cellular and molecular level after Borrelia sp. infection remain still poorly understood. Therefore, the present study focused on the gene expression in human dermal fibroblasts in differentiation of infection with Borrelia garinii, Borrelia afzelii and Borrelia burgdorferi sensu stricto spirochetes. For microarray analysis 10 samples were used: 3 control samples - K, 2 samples of NHDF cells infected with Borrelia garinii - G, 2 samples of NHDF cells infected with Borrelia afzelii - A and 3 samples of NHDF cells infected with Borrelia burgdorferi sensu stricto - SS.

2015-05-12 | E-GEOD-68741 | biostudies-arrayexpress

NHDF Cells (Normal Human Dermal Fibroblasts): Control (unstimulated fibroblasts) vs. Borrelia infected cells

Project description:Transcriptional profiling of NHDF Cells comparing control untreated fibroblasts with fibroblasts coincubated with three different species of the Borrelia burgdorferi sensu lato group.

2016-05-22 | GSE77058 | GEO

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