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JOURNAL ARTICLE
Arjen E Van't Hof, Sam Whiteford, Carl J Yung, Atsuo Yoshido, Magda Zrzavá, Maaike A de Jong, Kian-Long Tan, Dantong Zhu, Antónia Monteiro, Paul M Brakefield, František Marec, Ilik J Saccheri
Nature has devised many ways of producing males and females. Here, we report on a previously undescribed mechanism for Lepidoptera that functions without a female-specific gene. The number of alleles or allele heterozygosity in a single Z-linked gene ( BaMasc ) is the primary sex-determining switch in Bicyclus anynana butterflies. Embryos carrying a single BaMasc allele develop into WZ (or Z0) females, those carrying two distinct alleles develop into ZZ males, while (ZZ) homozygotes initiate female development, have mismatched dosage compensation, and die as embryos...
May 3, 2024: Science Advances
#2
JOURNAL ARTICLE
Saira Itzel Colmenares-Cuevas, Adriana Contreras-Oliva, Josafhat Salinas-Ruiz, Juan Valente Hidalgo-Contreras, Enrique Flores-Andrade, Edgar Jesús García-Ramírez
Consumer demand for healthier confectionery products has prompted the confectionery industry to create products that are reduced in sugar content and supplemented with vitamins, antioxidants or biological elements beneficial to health. The aim of this study was to develop marshmallows enriched with Apis mellifera honey and Lactobacillus rhamnosus and to evaluate the effect of honey concentration and gelatin bloom degrees on marshmallow properties. A completely randomized design with a factorial structure was applied with different honey concentrations (0, 50 and 75%) and at different gelatin bloom degrees (265, 300 and 315 bloom degrees); moreover, the physicochemical properties, total phenol content and antioxidant activity of the marshmallow were studied, as well as the viability of the probiotic...
2024: Frontiers in Nutrition
#3
JOURNAL ARTICLE
Fabrice Requier, Malena Sibaja Leyton, Carolina L Morales, Lucas A Garibaldi, Agostina Giacobino, Martin Pablo Porrini, Juan Manuel Rosso-Londoño, Rodrigo A Velarde, Andrea Aignasse, Patricia Aldea-Sánchez, Mariana Laura Allasino, Daniela Arredondo, Carina Audisio, Natalia Bulacio Cagnolo, Marina Basualdo, Belén Branchiccela, Rafael A Calderón, Loreley Castelli, Dayson Castilhos, Francisca Contreras Escareño, Adriana Correa-Benítez, Fabiana Oliveira da Silva, Diego Silva Garnica, Grecia de Groot, Andres Delgado-Cañedo, Hermógenes Fernández-Marín, Breno M Freitas, Alberto Galindo-Cardona, Nancy Garcia, Paula M Garrido, Tugrul Giray, Lionel Segui Gonçalves, Lucas Landi, Daniel Malusá Gonçalves, Silvia Inés Martinez, Pablo Joaquín Moja, Ana Molineri, Pablo Fernando Müller, Enrique Nogueira, Adriana Pacini, María Alejandra Palacio, Guiomar Nates Parra, Alejandro Parra-H, Kátia Peres Gramacho, Eleazar Pérez Castro, Carmen Sílvia Soares Pires, Francisco J Reynaldi, Anais Rodríguez Luis, Carmen Rossini, Milton Sánchez Armijos, Estela Santos, Alejandra Scannapieco, Yamandú Mendoza Spina, José María Tapia González, Andrés Marcelo Vargas Fernández, Blandina Felipe Viana, Lorena Vieli, Carlos Ariel Yadró García, Karina Antúnez
Over the last quarter century, increasing honey bee colony losses motivated standardized large-scale surveys of managed honey bees (Apis mellifera), particularly in Europe and the United States. Here we present the first large-scale standardized survey of colony losses of managed honey bees and stingless bees across Latin America. Overall, 1736 beekeepers and 165 meliponiculturists participated in the 2-year survey (2016-2017 and 2017-2018). On average, 30.4% of honey bee colonies and 39.6% of stingless bee colonies were lost per year across the region...
May 2, 2024: Scientific Reports
#4
JOURNAL ARTICLE
Jiangli Wu, Fengying Liu, Jiajing Sun, Qiaohong Wei, Weipeng Kang, Feng Wang, Chenhuan Zhang, Meijiao Zhao, Shufa Xu, Bin Han
Fenazaquin, a potent insecticide widely used to control phytophagous mites, has recently emerged as a potential solution for managing Varroa destructor mites in honeybees. However, the comprehensive impact of fenazaquin on honeybee health remains insufficiently understood. Our current study investigated the acute and chronic toxicity of fenazaquin to honeybee larvae, along with its influence on larval hemolymph metabolism and gut microbiota. Results showed that the acute median lethal dose (LD50 ) of fenazaquin for honeybee larvae was 1...
April 30, 2024: Chemosphere
#5
JOURNAL ARTICLE
Hardeep Kaur, Nebojša Nedić, Adam Tofilski
In order to improve the productivity of honey bees ( Apis mellifera ), some of their traits are selected by breeding. On one hand, breeding is mainly based on the natural geographical variation of this species; on the other hand, mass production and distribution of artificially selected queens can significantly affect the natural geographic variation of honey bees. In this study, we have compared honey bee wings originating from breeding and non-breeding populations in Serbia. In the comparison, we have also used data from a large area of south-eastern Europe...
2024: PeerJ
#6
JOURNAL ARTICLE
Jianhui Liu, Chunhua Liao, Zhen Li, Xinxin Shi, Xiaobo Wu
Fluvalinate is widely used in the control of Varroa destructor, but its residues in colonies threaten honeybees. The effect of fluvalinate-induced dysbiosis on honeybee-related gene expression and the gut microenvironment of honeybees has not yet been fully elucidated. In this study, two-day-old larvae to seven-day-old adult worker bees were continuously fed different amounts of fluvalinate-sucrose solutions (0, 0.5, 5, and 50 mg/kg), after which the expression levels of two immune-related genes (Hymenoptaecin and Defensin1) and three detoxication-related genes (GSTS3, CAT, and CYP450) in worker bees (1, 7, and 20 days old) were measured...
May 2024: Pesticide Biochemistry and Physiology
#7
JOURNAL ARTICLE
Jingliang Shi, Chen Liu, Yonghong Zhang, Xiaobo Wu
Flumethrin has been supplied as an acaricide for Varroa mite control in world-wide apiculture due to its low lethal effects on honey bees. However, little is known about the effects of short-term flumethrin exposure in the larval stage on adult life stage of bees involving survival status, foraging and memory-related behaviors. Here, we found that exposure to flumethrin at 1 mg/L during larval stage reduced survival and altered foraging activities including induced precocious foraging activity, decreased foraging trips and time, and altered rotating day-off status of adult worker bees using the radio frequency identification system...
May 2024: Pesticide Biochemistry and Physiology
#8
JOURNAL ARTICLE
Adèle Léger, Simon B Cormier, Arianne Blanchard, Hichem A Menail, Nicolas Pichaud
The metabolic responses of insects to high temperatures have been linked to their mitochondrial substrate oxidation capacity. However, the mechanism behind this mitochondrial flexibility is not well understood. Here, we used three insect species with different thermal tolerances (the honey bee, Apis mellifera; the fruit fly, Drosophila melanogaster; and the potato beetle, Leptinotarsa decemlineata) to characterise the thermal sensitivity of different metabolic enzymes. Specifically, we measured activities of enzymes involved in glycolysis (hexokinase, HK; pyruvate kinase, PK; and lactate dehydrogenase, LDH), pyruvate oxidation and the tricarboxylic acid cycle (pyruvate dehydrogenase, PDH; citrate synthase, CS; malate dehydrogenase, MDH; and aspartate aminotransferase, AAT), the electron transport system (Complex I, CI; Complex II, CII; mitochondrial glycerol-3-phosphate dehydrogenase, mG3PDH; Proline dehydrogenase, ProDH; and Complex IV, CIV) as well as ATP synthase (CV) at 18, 24, 30, 36, 42 and 45˚C...
April 29, 2024: Journal of Experimental Biology
#9
JOURNAL ARTICLE
Tabea Streicher, Pina Brinker, Simon Tragust, Robert J Paxton
The transmission of pathogens from reservoir to recipient host species, termed pathogen spillover, can profoundly impact plant, animal, and public health. However, why some pathogens lead to disease emergence in a novel species while others fail to establish or do not elicit disease is often poorly understood. There is strong evidence that deformed wing virus (DWV), an (+)ssRNA virus, spills over from its reservoir host, the honeybee Apis mellifera , into the bumblebee Bombus terrestris . However, the low impact of DWV on B...
April 15, 2024: Viruses
#10
JOURNAL ARTICLE
Rohan Antonio Bandoo, Simona Kraberger, Arvind Varsani
Members of the Geminviridae family are circular single-stranded DNA plant-infecting viruses, some of which impact global food production. Geminiviruses are vectored by sap-feeding insects such as leafhoppers, treehoppers, aphids, and whiteflies. Additionally, geminivirus sequences have also been identified in other insects such as dragonflies, mosquitoes, and stingless bees. As part of a viral metagenomics study on honeybees and solitary bees ( Nomia sp.), two geminivirus genomes were identified. These represent a novel citlodavirus (from honeybees collected from Westmoreland, Jamaica) and a mastrevirus-like genome (from a solitary bee collected from Tempe, Arizona, USA)...
April 13, 2024: Viruses
#11
JOURNAL ARTICLE
Valery A Isidorov, Andrea M Dallagnol, Adam Zalewski
The vegetation of the Canary Islands is characterized by a large number of endemic species confined to different altitudinal levels. It can be assumed that these circumstances determine the characteristic features of the chemical composition of local beekeeping products, including propolis. We report, for the first time, the chemical composition of propolis from Tenerife (Canary Islands). The volatile emissions of three propolis samples collected from different apiaries are represented by 162 C1 -C20 compounds, of which 144 were identified using the HS-SPME/GC-MS technique...
April 19, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
#12
JOURNAL ARTICLE
Daniel Aguado-López, Almudena Urbieta Magro, Mariano Higes, Juan Miguel Rodríguez, Raquel Martín-Hernández
The gut microbiota of honey bees has received increasing interest in the past decades due to its crucial role in their health, and can be disrupted by pathogen infection. Nosema ceranae is an intracellular parasite that affects the epithelial cells of the midgut, altering gut homeostasis and representing a major threat to honey bees. Previous studies indicated that younger worker bees are more susceptible to experimental infection by this parasite, although the impact of infection and of age on the gut bacterial communities remains unclear...
March 22, 2024: Microorganisms
#13
JOURNAL ARTICLE
Olga Frunze, Hyunjee Kim, Jeong-Hyeon Lee, Hyung-Wook Kwon
Honey bees are commonly used to study metabolic processes, yet the molecular mechanisms underlying nutrient transformation, particularly proteins and their effects on development, health, and diseases, still evoke varying opinions among researchers. To address this gap, we investigated the digestibility and transformation of water-soluble proteins from four artificial diets in long-lived honey bee populations ( Apis mellifera ligustica ), alongside their impact on metabolism and DWV relative expression ratio, using transcriptomic and protein quantification methods...
April 12, 2024: International Journal of Molecular Sciences
#14
JOURNAL ARTICLE
Marcelo P Camilli, Olena M Simko, Breanne Bevelander, Jenna M Thebeau, Fatima Masood, Marina C Bezerra da Silva, Muhammad Fahim Raza, Sofiia Markova, Oleksii Obshta, Midhun S Jose, Sarah Biganski, Ivanna V Kozii, Michael W Zabrodski, Igor Moshynskyy, Elemir Simko, Sarah C Wood
Animal models have been essential for advancing research of fetal alcohol spectrum disorder (FASD) in humans, but few animal species effectively replicate the behavioural and clinical signs of FASD. The honey bee ( Apis mellifera ) is a previously unexplored research model for FASD that offers the distinct benefit of highly social behaviour. In this study, we chronically exposed honey bee larvae to incremental concentrations of 0, 3, 6, and 10% ethanol in the larval diet using an in vitro rearing protocol and measured developmental time and survival to adult eclosion, as well as body weight and motor activity of newly emerged adult bees...
March 25, 2024: Life
#15
JOURNAL ARTICLE
Bo-Yeon Kim, Kwang-Sik Lee, Byung-Rae Jin
Bee venom contains several bioactive components, including enzymatic and non-enzymatic proteins. There is increasing interest in the bioactive components of bee venom since they have exhibited various pharmacological effects. Recently, Apis mellifera waprin (Amwaprin) was identified as a novel protein in Apis mellifera (honeybee) venom and characterized as an antimicrobial agent. Herein, the novel biological function of Amwaprin as an antioxidant is described. In addition, the antioxidant effects of Amwaprin in mammalian cells were investigated...
April 17, 2024: Antioxidants (Basel, Switzerland)
#16
JOURNAL ARTICLE
Caio E C Domingues, Laura Šimenc, Ivan Toplak, Dirk C de Graaf, Lina De Smet, Wim Verbeke, Luc Peelman, Leticia S Ansaloni, Aleš Gregorc
The Carniolan honey bee (Apis mellifera carnica) plays an essential role in crop pollination, environment diversity, and the production of honey bee products. However, the health of individual honey bees and their colonies is under pressure due to multiple stressors, including viruses as a significant threat to bees. Monitoring various virus infections could be a crucial selection tool during queen rearing. In the present study, samples from all developmental stages (eggs, larvae, pupae, and queens) were screened for the incidence of seven viruses during queen rearing in Slovenia...
April 26, 2024: Scientific Reports
#17
JOURNAL ARTICLE
Aline Beatriz Reis, Mateus Soares de Oliveira, Diego Dos Santos Souza, Davy Soares Gomes, Laryssa Lemos da Silva, Luis Carlos Martínez, José Eduardo Serrão
Bees are important for maintaining ecosystems, pollinating crops and producing marketable products. In recent years, a decline in bee populations has been reported, with multifactorial causes, including the intensification of pesticide use in agriculture. Among pesticides, cyflumetofen is an insecticide and acaricide used in apple, coffee and citrus crops, whose main pollinator is the honey bee Apis mellifera. Therefore, this bee is a potential target of cyflumetofen during foraging. This study evaluated the histopathological and cytological damage in the midgut, hypopharyngeal glands and fat body of A...
April 24, 2024: Science of the Total Environment
#18
JOURNAL ARTICLE
Thi-Thu Nguyen, Mi-Sun Yoo, Hyang-Sim Lee, So-Youn Youn, Se-Ji Lee, Su-Kyoung Seo, Jaemyung Kim, Yun-Sang Cho
Apis mellifera , especially weak ones, are highly vulnerable to Carpoglyphus lactis mites, which can rapidly infest and consume stored pollen, leading to weakened colonies and potential colony collapse. This study aimed to ascertain and investigate the prevalence of this mite in honeybee colonies across nine provinces in the Republic of Korea (ROK). A total of 615 honeybee colony samples were collected from 66 apiaries during the spring and 58 apiaries during the summer of 2023. A 1242 bp segment of the Cytochrome c oxidase subunit 1 ( COI ) gene was amplified using the polymerase chain reaction method...
April 14, 2024: Insects
#19
JOURNAL ARTICLE
Ratko Pavlović, Robert Brodschneider, Walter Goessler, Ljubiša Stanisavljević, Zoran Vujčić, Nenad M Zarić
Chalkbrood is a disease of honey bee brood caused by the fungal parasite Ascosphaera apis . Many factors such as genetics, temperature, humidity and nutrition influence the appearance of clinical symptoms. Poor nutrition impairs the immune system, which favors the manifestation of symptoms of many honey bee diseases. However, a direct link between dietary ingredients and the symptoms of chalkbrood disease has not yet been established. We show here that the elemental composition of chalkbrood mummies and healthy larvae from the same infected hives differ, as well as that mummies differ from larvae from healthy hives...
April 12, 2024: Insects
#20
JOURNAL ARTICLE
Ivana Tlak Gajger, Zlatko Tomljanović, Franco Mutinelli, Anna Granato, Josipa Vlainić
American foulbrood is an infectious disease of the honeybee brood that causes multiple types of damage to beekeeping. The causative agent of the disease is the bacterium Paenibacillus larvae , which forms resistant infective spores and is viable for decades. After the eradication measures have been implemented, in cases of clinically visible disease, it is necessary to conduct effective final disinfections of equipment and tools. This study aimed to determine the effect of ten commercially available and commonly used disinfectants on certified strains of P...
April 12, 2024: Insects
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