Results 31 to 40 of about 1,054 (162)

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

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

Effect of Genotype of Grafted Larvae and Rearing Bar Level on some Economic Traits in Commercial Production of Honeybee Queens under Damietta Governorate Conditions, North Egypt [PDF]

Journal of Plant Protection and Pathology, 2021
The present study was conducted in the privet apiary established at Kafr Saad distances, Damietta Governorate, North Egypt, during summer season of 2019, (July and August).
Noura Abd Al-Hady, M. A. Abd Al-Fattah, H. A. El-Kady,   +2 more
doaj   +1 more source

Expression of Elongase- and Desaturase-Encoding Genes Shapes the Cuticular Hydrocarbon Profiles of Honey Bees. [PDF]

Mol Ecol
ABSTRACT Most terrestrial insects have a layer of cuticular hydrocarbons (CHCs) protecting them from desiccation and mediating chemical communication. The composition of these hydrocarbons is highly plastic and changes during their lifetime and with environmental conditions. How these changes in CHC composition are achieved is largely unknown.
Rodríguez-León DS, Schmitt T, Pinto MA, Thamm M, Scheiner R.   +4 more
europepmc   +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

Heritabilities for several colony traits in the honeybee (Apis mellifera carnica) [PDF]

Apidologie, 1990
Utilisation du modele de Willham 1963 pour estimer l'heritabilite des effets «reines» et des effets «ouvrieres» pour differents caracteres des colonnies de A.
K. Bienefeld, F. Pirchner
openaire   +1 more source

Cubital Index Determination of some Honey Bee Races Apis mellifera subspecies at El-Manzla Region in El-Dakahlia Governorate, Egypt

Journal of Plant Protection and Pathology, 2017
Egypt had different honey bee races as a result of import many races in previous years. Here seven locations were choice from isolated place as El-Manzla region to examine the races and their hybrids by using cubital index as one of the important ...
Nadia Hassona
doaj   +1 more source

Sequence-Based Multi Ancestry Association Study Reveals the Polygenic Architecture of Varroa destructor Resistance in the Honeybee Apis mellifera. [PDF]

Mol Ecol
ABSTRACT Honeybees, Apis mellifera, have experienced the full impacts of globalisation, including the recent invasion by the parasitic mite Varroa destructor, now one of the main causes of colony losses worldwide. The strong selection pressure it exerts has led some colonies to develop defence strategies conferring some degree of resistance to the ...
Eynard SE, Mondet F, Basso B, Bouchez O, Le Conte Y, Dainat B, Decourtye A, Genestout L, Guichard M, Guillaume F, Labarthe E, Locke B, Mahla R, de Miranda J, Neuditschko M, Phocas F, Canale-Tabet K, Vignal A, Servin B.   +18 more
europepmc   +2 more sources

Susceptibility of Bee Larvae to Chalkbrood in Relation to Hygienic Behaviour of Worker Bees in Colonies of Chosen Races of Honeybee (Apis Mellifera )

Journal of Apicultural Science, 2014
The susceptibility of bee larvae to Ascosphaera apis infestation and the hygienic behaviour of worker bees in relation to A. apis infected and freeze-killed brood were evaluated in three races of bees: Apis mellifera carnica, Apis mellifera caucasica ...
Panasiuk Beata, Bieńkowska Małgorzata, Gerula Dariusz, Węgrzynowicz Paweł   +3 more
doaj   +1 more source

GENETIC ASPECT OF MULTIPLE QUEEN STATUS IN HONEY BEE Apis mellifera [PDF]

Journal of Plant Protection and Pathology, 2008
Parents of the three races; Apis mellifera carnica (car), Apis mellifera ligustica (lig) and Apis mellifera lamarckii (lam), as well as their offspring's which were yielded from diallel cross (inbreed pure, cross and reciprocal cross) by using ...
A. Elbassiouny,
doaj   +1 more source