Magnetoreception System in Honeybees (Apis mellifera)

Hsu, Chin-Yuan; Ko, Fu-Yao; Li, Chia-Wei; Fann, K. T.; Lue, Juh Tzeng

doi:10.1371/journal.pone.0000395

Cited by 95 publications

(97 citation statements)

References 75 publications

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“…Briefly, workers were dissected. Trophocytes and fat cells from abdomen were detached from the cuticle of a young or old worker in honeybee saline (Hsu et al 2007), immersed in SA-β-Gal staining solution at 37°C for 6 h, washed with PBS, mounted onto glass slides, and viewed under light microscope (Olympus BX-61, Tokyo, Japan). SA-β-Gal area was analyzed by QWin image processing and analysis software (version 2.5, Leica, Wetzlar, Germany).…”

Section: Methodsmentioning

confidence: 99%

The use of honeybees reared in a thermostatic chamber for aging studies

Hsu

Chan

2011

AGE

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Honeybees (Apis mellifera) are an attractive model system for studying aging. However, the aging level of worker honeybees from the field hive is in dispute. To eliminate the influence of task performance and confirm the relationship between chronological age and aging, we reared newly emerged workers in a thermostat at 34°C throughout their lives. A survivorship curve was obtained, indicating that workers can be reared away from the field hive, and the only difference between these workers is age. To confirm that these workers can be used for aging studies, we assayed age-related molecules in the trophocytes and fat cells of young and old workers. Old workers expressed more senescence-associated β-galactosidase, lipofuscin granules, lipid peroxidation, and protein oxidation than young workers. Furthermore, cellular energy metabolism molecules were also assayed. Old workers exhibited less ATP concentration, β-oxidation, and microtubule-associated protein light chain 3 (LC3) than young workers. These results demonstrate that honeybees reared in a thermostatic chamber can be used for aging studies and cellular energy metabolism in the trophocytes and fat cells of workers changes with advancing age.

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Section: Methodsmentioning

confidence: 99%

The use of honeybees reared in a thermostatic chamber for aging studies

Hsu

Chan

2011

AGE

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“…These magnetite structures are active parts of the magnetoreception system in honeybees (Hsu and Li 1994;Hsu et al 2007). Importantly, it has been shown that honeybees can be trained to respond to very small changes in the constant local geomagnetic field intensity (Walker and Bitterman 1989a).…”

Section: Mobile Phone Handsets and Induced Honeybee Worker Pipingmentioning

confidence: 99%

Mobile phone-induced honeybee worker piping

Favre

2011

Apidologie

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-The worldwide maintenance of the honeybee has major ecological, economic, and political implications. In the present study, electromagnetic waves originating from mobile phones were tested for potential effects on honeybee behavior. Mobile phone handsets were placed in the close vicinity of honeybees. The sound made by the bees was recorded and analyzed. The audiograms and spectrograms revealed that active mobile phone handsets have a dramatic impact on the behavior of the bees, namely by inducing the worker piping signal. In natural conditions, worker piping either announces the swarming process of the bee colony or is a signal of a disturbed bee colony.worker bee / acoustic communication / mobile phone handset / worker piping / induction

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“…The presence of SPM magnetite in the trophocyte granules of honeybee abdomens was recently confirmed by SQUID magnetometry among diverse spectroscopic techniques such as atomic force microscopy, magnetic force microscopy (MFM), high-resolution TEM (HRTEM), scanning TEM and energy dispersive X-ray (EDX) with electron spectroscopy for chemical analysis. A high intrinsic coercivity (100-150) Â10 24 T (100-150 G) was shown for purified iron granules (IGs) (Hsu et al 2007).…”

Section: The Search For Magnetosensorsmentioning

confidence: 99%

Magnetoreception in eusocial insects: an update

Wajnberg

Acosta‐Avalos

Alves

et al. 2010

J. R. Soc. Interface.

106

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Behavioural experiments for magnetoreception in eusocial insects in the last decade are reviewed. Ants and bees use the geomagnetic field to orient and navigate in areas around their nests and along migratory paths. Bees show sensitivity to small changes in magnetic fields in conditioning experiments and when exiting the hive. For the first time, the magnetic properties of the nanoparticles found in eusocial insects, obtained by magnetic techniques and electron microscopy, are reviewed. Different magnetic oxide nanoparticles, ranging from superparamagnetic to multi-domain particles, were observed in all body parts, but greater relative concentrations in the abdomens and antennae of honeybees and ants have focused attention on these segments. Theoretical models for how these specific magnetosensory apparatuses function have been proposed. Neuron-rich ant antennae may be the most amenable to discovering a magnetosensor that will greatly assist research into higher order processing of magnetic information. The ferromagnetic hypothesis is believed to apply to eusocial insects, but interest in a light-sensitive mechanism is growing. The diversity of compass mechanisms in animals suggests that multiple compasses may function in insect orientation and navigation. The search for magnetic compasses will continue even after a magnetosensor is discovered in eusocial insects.

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Magnetoreception System in Honeybees (Apis mellifera)

Cited by 95 publications

References 75 publications

The use of honeybees reared in a thermostatic chamber for aging studies

The use of honeybees reared in a thermostatic chamber for aging studies

Mobile phone-induced honeybee worker piping

Magnetoreception in eusocial insects: an update

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