Results 41 to 50 of about 30,792 (242)

Effects of Honey Bee Race and Season on Propolis Composition

Journal of Agricultural Sciences, 2021
Honey bees collect the main material of propolis from the buds, leaves, branches, and barks or other botanical sources and mixed that resinous material with beeswax produced from abdominal exocrine glands, mandibular gland secretions, and pollen to ...
Merve Keskin, Meral Kekeçoğlu, Ceren Birinci, Esra Birinci, Sevgi Kolaylı   +4 more
doaj   +1 more source

Vertical transmission of honey bee viruses in a Belgian queen breeding program [PDF]

, 2015
Background: The Member States of European Union are encouraged to improve the general conditions for the production and marketing of apicultural products. In Belgium, programmes on the restocking of honey bee hives have run for many years.
de Graaf, Dirk, De Smet, Lina, Ravoet, Jorgen, Wenseleers, Tom   +3 more
core   +2 more sources

Linking Histone Methylation States and hsp Transcriptional Regulation in Thermo-Tolerant and Thermo-Susceptible A. mellifera L. Subspecies in Response to Heat Stress

Insects, 2023
Genetic and epigenetic responses to environmental cues of worker honeybees mediate hsp synthesis, a key mechanism to tolerate high ambient temperatures in Apis mellifera.
Yehya Z. Alattal, Ahmad A. Alghamdi
doaj   +1 more source

Killing and replacing queen-laid eggs: low cost of worker policing in the honey bee [PDF]

, 2014
Worker honeybees, Apis mellifera, police each other’s reproduction by killing worker-laid eggs. Previous experiments demonstrated that worker policing is effective, killing most (∼98%) worker-laid eggs. However, many queen-laid eggs were also killed (∼50%
Kärcher, Martin H, Ratnieks, Francis L W   +1 more
core   +1 more source

Cloning and Characterization of Phospholipases A2 and Hyaluronidase Genes from the Venom of the Honeybee Apis mellifera carnica (Hymenoptera: Apidae)

Sociobiology, 2014
Bee venom contains the allergic enzymes phospholipases A2 (PLA2) and hyaluronidase. These enzymes have been extensively studied as therapeutic modalities because of their proven effects in pharmaceutical and clinical applications.
Junfang Lin
doaj   +1 more source

Genetic integrity of the Dark European honey bee (Apis mellifera mellifera) from protected populations: a genome-wide assessment using SNPs and mtDNA sequence data [PDF]

, 2014
The recognition that the Dark European honey bee, Apis mellifera mellifera, is increasingly threatened in its native range has led to the establishment of conservation programmes and protected areas throughout western Europe.
Carreck, Norman L, Chavez-Galarza, Julio, Dahle, Bjorn, Dall' Olio, Raffaele, de la Rua, Pilar, Garnery, Lionel, Henriques, Dora, Johnson, J Spencer, Kryger, Per, Pinto, M Alice, Soland-Reckeweg, Gabriele, van der Zee, Romee   +11 more
core   +1 more source

Seasonal variations of colony activities linked to morphometric and glands characterizations of hybrid Carniolan honey bee (Apis mellifera carnica Pollmann) workers

, 2021
Objectives The activity and productivity of the honey bee colony depend upon many factors operating simultaneously and reacts to some environmental conditions. We aimed to study the morphometric characteristics and glands development of nurse and forager
M. Shawer, E. Taha, K. Mousa, Khalid Ali Khan, S. Ibrahim, S. Hassan, El-Said M. Elnabawy   +6 more
semanticscholar   +1 more source

First detection of Paenibacillus larvae the causative agent of American Foulbrood in a Ugandan honeybee colony [PDF]

, 2016
Paenibacillus larvae is a highly contagious and often lethal widely distributed pathogen of honeybees, Apis mellifera but has not been reported in eastern Africa to date. We investigated the presence of P.
Akol, Anne M, Brunain, Marleen, Chemurot, Moses, de Graaf, Dirk, Descamps, Tine   +4 more
core   +2 more sources

Utjecaj veličine matičnjaka na masu izlegnutih matica sive pčele (Apis mellifera carnica)

Stočarstvo, 2022
U ovom istraživanju izvagano je 150 matica nakon izlijeganja uzgajanih iz presađenih jednodnevnih ličinki. Cilj istraživanja bio je utvrditi korelaciju mase izlegnutih matica s veličinom matičnjaka mjereći volumen, širinu i dubinu matičnjaka.
Filipa Apčak, Zlatko Puškadija, Marinko Kovačić   +2 more
semanticscholar   +1 more source

Honey bee genotypes and the environment [PDF]

, 2014
Although knowledge about honey bee geographic and genetic diversity has increased tremendously in recent decades (Meixner et al., 2013), the adaptation of honey bees to their local environment has not been well studied.
Buchler, Ralph, Carreck, Norman L, Costa, Cecilia, Francis, Roy M, Hatjina, Fani, Kryger, Per, Meixner, Marina D, Uzunov, Aleksander   +7 more
core   +1 more source