Results 161 to 170 of about 69,674 (202)

Microsporidia infecting Apis mellifera : coexistence or competition. Is Nosema ceranae replacing Nosema apis ?

Environmental Microbiology, 2011
Summary Nosema ceranae has been suggested to be replacing Nosema apis in some populations of Apis mellifera honeybees.
Raquel, Martín-Hernández, Cristina, Botías, Encarna Garrido, Bailón, Amparo, Martínez-Salvador, Lourdes, Prieto, Aránzazu, Meana, Mariano, Higes   +6 more
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Molecular Identification of Nosema ceranae and Nosema apis in Native Bulgarian Honey Bee (Apis mellifera rodopica)

Journal of Veterinary Science & Medical Diagnosis, 2015
Molecular Identification of Nosema ceranae and Nosema apis in Native Bulgarian Honey Bee (Apis mellifera rodopica) The aim of current study is to investigate the presence of two main microsporidian parasites N. apis and N. ceranae in Bulgarian local honey bee. The discrimination among two Nosema species was carried out on 18 individual samples.
Hristov PI Rositsa S, Bojko N Georgi R
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Presence of Nosema ceranae in honeybees (Apis mellifera) in Uruguay

Journal of Invertebrate Pathology, 2009
The microsporidium Nosema ceranae is an emergent pathogen of European honeybees Apis mellifera. Using a PCR-RFLP diagnosis, 29 samples of infected honeybees obtained in 2007-2008 (N=26), 2004 (N=2) and before 1990 (N=1) were analyzed for the presence of Nosema apis and N. ceranae. Only N.
Ciro, Invernizzi, Carolina, Abud, Ivanna H, Tomasco, Jorge, Harriet, Gustavo, Ramallo, Juan, Campá, Helena, Katz, Gabriela, Gardiol, Yamandú, Mendoza   +8 more
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Infectivity and virulence of Nosema ceranae and Nosema apis in commercially available North American honey bees

Journal of Invertebrate Pathology, 2015
Nosema ceranae infection is ubiquitous in western honey bees, Apis mellifera, in the United States and the pathogen has apparently replaced Nosema apis in colonies nationwide. Displacement of N. apis suggests that N. ceranae has competitive advantages but N. ceranae was significantly less infective and less virulent than N.
Wei-Fone, Huang, Leellen, Solter, Katherine, Aronstein, Zachary, Huang   +3 more
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Intracellular stages in the life cycle of the microsporidian Nosema apis

Journal of Invertebrate Pathology, 1969
Abstract The intracellular stages of the microsporidian Nosema apis are described, and photomicrographs are presented as an aid for the identification of this parasite of the honey bee, Apis mellifera.
F H, Gray, A, Cali, J D, Briggs
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Nosema ceranae in drone honey bees (Apis mellifera)

Journal of Invertebrate Pathology, 2011
Nosema ceranae is a microsporidian intracellular parasite of honey bees, Apis mellifera. Previously Nosema apis was thought to be the only cause of nosemosis, but it has recently been proposed that N. ceranae is displacing N. apis. The rapid spread of N. ceranae could be due to additional transmission mechanisms, as well as higher infectivity.
Brenna E, Traver, Richard D, Fell
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Influence of carbon dioxide on Nosema apis infection of honeybees (Apis mellifera)

Journal of Invertebrate Pathology, 2007
Young workers of the honeybee Apis mellifera carnica were individually inoculated with Nosema apis spores subjected to carbon dioxide (CO(2)) treatment. The spores were kept in a CO(2) atmosphere for 30, 35 and 40 h. The course of the infection was evaluated on the basis of the survival rate of bee workers and the number of N.
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Fine structure of the developing spore of Nosema apis zander

Zeitschrift f�r Zellforschung und mikroskopische Anatomie, 1973
The mature spore possesses a thick spore coat and a particle-bearing spore membrane. The highly laminated polaroplast membranes are located at the anterior pole of the spore. Close to its base, the polar filament is surrounded by the polaroplast membrane. The polar filament runs spirally towards the posterior pole of the spore.
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Nosema Ceranae Interactions with Nosema apis and Black Queen Cell Virus

Agriculture (Switzerland), 2021
Ewa Mazur, Michał Czopowicz, Anna M Gajda   +2 more
exaly  

Epidemiology of Nosema apis and Nosema ceranae in Eastern Black Sea Region

2018
Doğu Karadeniz Bölgesinioluşturan illerin, Arıcılık Kayıt sisteminde yer alan ve 50’den fazla koloniyesahip olan 209 arıcılık işletmesinden ilkbahar ve sonbahar dönemlerindebalarısı numuneleri alınmıştır. Alınan numuneler mikroskobik muayene yapılarakspor yönünden pozitif olanlar; spor sayımı, Giemsa boyama ve PCR yapılmıştır.
YILMAZ, Fatih, ÖZTÜRK, S.hasan, KUVANCI, Ahmet, KAYABOYNU, Ümit, KARATAŞ, Ümit, KAYA, Selma, DEREBAŞI, Engin, BULDAĞ, Mücahit   +7 more
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