Results 21 to 30 of about 3,782 (173)

Possible Synergistic Effects of Thymol and Nicotine Against Crithidia bombi Parasitism in Bumble Bees.

open access: yesPLoS ONE, 2015
Floral nectar contains secondary compounds with antimicrobial properties that can affect not only plant-pollinator interactions, but also interactions between pollinators and their parasites.
Olivia Masi Biller   +4 more
doaj   +1 more source

The Growth and Nutrition of Crithidia fasciculata [PDF]

open access: yesJournal of General Microbiology, 1958
The conditions for luxuriant axenic cultivation of the trypanosomid flagellate Crithidia fasciculata in chemically-defined media were determined. Improvements over the hitherto published media include higher concentrations of amino acids, folic acid (where this is the sole source of pteridine) and purines and the inclusion of threonine and Tween 80 ...
G W, KIDDER, B N, DUTTA
openaire   +2 more sources

Parasites of the genus Nosema, Crithidia and Lotmaria in the honeybee and bumblebee populations: a case study in India

open access: yesВавиловский журнал генетики и селекции, 2018
The populations of honeybees and bumblebees have been decreasing around the world in the recent decades. A variety of pathogens and parasites, including  bacteria, fungi, protozoa, nematodes, mites and insects play signi ficant role in honeybee and ...
V. Y. Vavilova   +4 more
doaj   +1 more source

Trypanosomatidae codon usage and GC distribution

open access: yesMemorias do Instituto Oswaldo Cruz, 1992
A study od Typanosomatidae GC distribution and codon usage is presented. The codon usage patterns in coincidence with the phylogenetical data are similar in Crithidia and Leishmania, whereas they are more divergent in Trypanosoma brucei and T. cruzi. The
Guilhermina Alonso   +2 more
doaj   +1 more source

Pollen extracts and constituent sugars increase growth of a trypanosomatid parasite of bumble bees [PDF]

open access: yesPeerJ, 2017
Phytochemicals produced by plants, including at flowers, function in protection against plant diseases, and have a long history of use against trypanosomatid infection.
Evan C. Palmer-Young, Lucy Thursfield
doaj   +2 more sources

Molecular Characterization of Clinical Leishmania Major Isolates Harboring ITS1 Homology Similar to the One in Crithidia spp.

open access: yesمجله دانشکده پزشکی اصفهان, 2018
Background: Leishmaniasis is caused by the protozoan Leishmania spp. In some loci from Iran, some isolates have ITS1 like the one in Crithidia spp. Therefore, in this study, we analyzed molecular characters of the mentioned isolates.
Mina Aghai-Maybodi   +6 more
doaj   +1 more source

Neither sulfoxaflor, Crithidia bombi, nor their combination impact bumble bee colony development or field bean pollination

open access: yesScientific Reports, 2023
Many pollinators, including bumble bees, are in decline. Such declines are known to be driven by a number of interacting factors. Decreases in bee populations may also negatively impact the key ecosystem service, pollination, that they provide ...
Edward A. Straw   +9 more
doaj   +1 more source

Urban landscapes tend to increase the presence of pathogenic protozoa, microsporidia and viruses, but likely decrease the abundance of viruses in wild bees and wasps. [PDF]

open access: yesInsect Sci
• The bees Anthophora plumipes and Osmia cornuta had a higher occurrence probability of the neogregarine protozoan Apicystis bombi in more fragmented urban areas.• In the bee Halictus scabiosae and wasp Polistes dominula, hotter urban areas increased the likelihood of occurrence of viruses.• The viruses were found to be replicative in the samples, and ...
Ferrari A, Cilia G, Polidori C.
europepmc   +2 more sources

Crithidia ricardoi sp. n. a new species of trypanosomatidae isolated from Culex saltanensis Dyar, 1928 (Diptera: Culicidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1993
A flagellte trypanosomatid was isolated in culture from the digestive tract of the mosquito Culex saltanensis Dyar, 1928. It grows exuberantly in liver infusion in the form of epimastigotes and choanomastigotes typical of the genus Crithidia.
Alexander Sibajev   +5 more
doaj   +1 more source

Temporal analysis of the honey bee microbiome reveals four novel viruses and seasonal prevalence of known viruses, Nosema, and Crithidia. [PDF]

open access: yesPLoS ONE, 2011
Honey bees (Apis mellifera) play a critical role in global food production as pollinators of numerous crops. Recently, honey bee populations in the United States, Canada, and Europe have suffered an unexplained increase in annual losses due to a ...
Charles Runckel   +6 more
doaj   +1 more source

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