Caste- and colony-specific chemical signals on eggs of the bumble bee, Bombus terrestris L. (Hymenoptera: Apidae)

Chemoecology ◽  
1999 ◽  
Vol 9 (3) ◽  
pp. 119-126 ◽  
Author(s):  
Manfred Ayasse ◽  
Julia Birnbaum ◽  
Jan Tengö ◽  
Adriaan van Doorn ◽  
Timo Taghizadeh ◽  
...  
Keyword(s):  
Bombus Terrestris ◽  
Chemical Signals ◽  
Bumble Bee ◽  
Specific Chemical

A Novel Method for the Analysis of Volatile Organic Compounds (VOCs) from Red Flour Beetle Tribolium castaneum (H.) using Headspace-SPME Technology

2020 ◽  
Vol 16 (4) ◽  
pp. 404-412 ◽  
Author(s):  
Ihab Alnajim ◽  
Manjree Agarwal ◽  
Tao Liu ◽  
YongLin Ren
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Tribolium Castaneum ◽  
Solid Phase ◽  
Chemical Signals ◽  
Red Flour Beetle ◽  
Specific Chemical ◽  
Flour Beetle ◽  
Volatile Organic ◽  
Spme Fibre

Background: The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) is one of the world’s most serious stored grain insect pests. A method of early and rapid identification of red flour beetle in stored products is urgently required to improve control options. Specific chemical signals identified as Volatile Organic Compounds (VOCs) that are released by the beetle can serve as biomarkers. Methods: The Headspace Solid Phase Microextraction (HS-SPME) technique and the analytical conditions with GC and GCMS were optimised and validated for the determination of VOCs released from T. castaneum. Results: The 50/30 μm DVB/CAR/PDMS SPME fibre was selected for extraction of VOCs from T. castaneum. The efficiency of extraction of VOCs was significantly affected by the extraction time, temperature, insect density and type of SPME fibre. Twenty-three VOCs were extracted from insects in 4 mL flask at 35 ± 1°C for four hours of extraction and separated and identified with gas chromatography-mass spectroscopy. The major VOCs or chemical signals from T. castaneum were 1-pentadecene, p-Benzoquinone, 2-methyl- and p-Benzoquinone, 2-ethyl. Conclusion: This study showed that HS-SPME GC technology is a robust and cost-effective method for extraction and identification of the unique VOCs produced by T. castaneum. Therefore, this technology could lead to a new approach in the timely detection of T. castaneum and its subsequent treatment.

scholarly journals Olfactory coding in the antennal lobe of the bumble bee Bombus terrestris

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marcel Mertes ◽  
Julie Carcaud ◽  
Jean-Christophe Sandoz
Keyword(s):  
Honey Bees ◽  
Antennal Lobe ◽  
Bombus Terrestris ◽  
Bumble Bees ◽  
Foraging Strategies ◽  
Bumble Bee ◽  
Carbon Chain Length ◽  
Olfactory Coding ◽  
Major Transitions

AbstractSociality is classified as one of the major transitions in evolution, with the largest number of eusocial species found in the insect order Hymenoptera, including the Apini (honey bees) and the Bombini (bumble bees). Bumble bees and honey bees not only differ in their social organization and foraging strategies, but comparative analyses of their genomes demonstrated that bumble bees have a slightly less diverse family of olfactory receptors than honey bees, suggesting that their olfactory abilities have adapted to different social and/or ecological conditions. However, unfortunately, no precise comparison of olfactory coding has been performed so far between honey bees and bumble bees, and little is known about the rules underlying olfactory coding in the bumble bee brain. In this study, we used in vivo calcium imaging to study olfactory coding of a panel of floral odorants in the antennal lobe of the bumble bee Bombus terrestris. Our results show that odorants induce reproducible neuronal activity in the bumble bee antennal lobe. Each odorant evokes a different glomerular activity pattern revealing this molecule’s chemical structure, i.e. its carbon chain length and functional group. In addition, pairwise similarity among odor representations are conserved in bumble bees and honey bees. This study thus suggests that bumble bees, like honey bees, are equipped to respond to odorants according to their chemical features.

Parasitic larvae in Bombus terrestris

Parasitology ◽  
1937 ◽  
Vol 29 (4) ◽  
pp. 524-525 ◽  
Author(s):  
M. M. Legge
Keyword(s):  
Bombus Terrestris ◽  
Abdominal Cavity ◽  
Bumble Bee

I wish to record some unidentified parasites, from the abdominal cavity of a Queen Bumble-bee (Bombus terrestris).

Evolution of Full-Length and Deleted Forms of the Mariner-LikeElement, Botmar1, in the Genome of the Bumble Bee, Bombus terrestris (Hymenoptera: Apidae)

2005 ◽  
Vol 60 (6) ◽  
pp. 736-747 ◽  
Author(s):  
Florence Rouleux-Bonnin ◽  
Agnès Petit ◽  
Marie-Véronique Demattei ◽  
Yves Bigot
Keyword(s):  
Bombus Terrestris ◽  
Full Length ◽  
Bumble Bee

Horizontal transmission success of Nosema bombi to its adult bumble bee hosts: effects of dosage, spore source and host age

Parasitology ◽  
2007 ◽  
Vol 134 (12) ◽  
pp. 1719-1726 ◽  
Author(s):  
S. T. RUTRECHT ◽  
J. KLEE ◽  
M. J. F. BROWN
Keyword(s):  
Bombus Terrestris ◽  
Horizontal Transmission ◽  
Fold Increase ◽  
Population Heterogeneity ◽  
Host Susceptibility ◽  
Bumble Bee ◽  
Host Age ◽  
Transmission Success ◽  
Nosema Bombi ◽  
Evolutionary Epidemiology

SUMMARYParasite transmission dynamics are fundamental to explaining the evolutionary epidemiology of disease because transmission and virulence are tightly linked. Horizontal transmission of microsporidian parasites, e.g. Nosema bombi, may be influenced by numerous factors, including inoculation dose, host susceptibility and host population heterogeneity. Despite previous studies of N. bombi and its bumble bee hosts, neither the epidemiology nor impact of the parasite are as yet understood. Here we investigate the influence N. bombi spore dosage (1000 to 500 000 spores), spore source (Bombus terrestris and B. lucorum isolates) and host age (2- and 10-day-old bees) have on disease establishment and the presence of patent infections in adult bumble bees. Two-day-old bees were twice as susceptible as their 10-day-old sisters, and a 5-fold increase in dosage from 100 000 to 500 000 spores resulted in a 20-fold increase in the prevalence of patent infections. While intraspecific inoculations were 3 times more likely to result in non-patent infections there was no such effect on the development of patent infections. These results suggest that host-age and dose are likely to play a role in N. bombi's evolutionary epidemiology. The relatively low levels of horizontal transmission success are suggestive of low virulence in this system.

Effect of Different Types of Boxes on Rearing of Bumble Bee, Bombus terrestris

2016 ◽  
Vol 49 (1) ◽  
pp. 169-174
Author(s):  
Muhammad Imran ◽  
Munir Ahmad ◽  
Muhammad Naeem ◽  
Muhammad Farooq Nasir ◽  
Imran Bodlah ◽  
...  
Keyword(s):  
Bombus Terrestris ◽  
Bumble Bee ◽  
Different Types
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