Modelling the subgenual organ of the honeybee, Apis mellifera

Storm, J.; Kilpinen, Ole

doi:10.1007/s004220050424

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…The position of both organs in the hemolymph channel allows for the detection of substrate vibrations transferred along the leg in the hemolymph. In bees, it was shown that the SGO moves within the tibia upon vibrational stimulation, responding also with changes in the SGO morphology [ 52 , 53 ].…”

Section: Discussionmentioning

confidence: 99%

Functional Morphology of Leg Mechanosensory Organs in Early Postembryonic Development in the Stick Insect (Sipyloidea chlorotica)

Strauß

2024

Insects

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The subgenual organ complex of stick insects has a unique neuroanatomical organisation with two elaborate chordotonal organs, the subgenual organ and the distal organ. These organs are present in all leg pairs and are already developed in newly hatched stick insects. The present study analyses for the first time the morphology of sensory organs in the subgenual organ complex for a membrane connecting the two sensory organs in newly hatched insects (Sipyloidea chlorotica (Audinet-Serville 1838)). The stick insect legs were analysed following hatching by axonal tracing and light microscopy. The subgenual organ complex in first juvenile instars shows the sensory organs and a thin membrane connecting the sensory organs resembling the morphology of adult animals. Rarely was this membrane not detected, where it is assumed as not developed during embryogenesis. The connection appears to influence the shape of the subgenual organ, with one end extending towards the distal organ as under tension. These findings are discussed for the following functional implications: (1) the physiological responses of the subgenual organ complex to mechanical stimuli after hatching, (2) the influence of the membrane on the displacement of the sensory organs, and (3) the connection between the subgenual organ and distal organ as a possible functional coupling.

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Section: Discussionmentioning

confidence: 99%

Functional Morphology of Leg Mechanosensory Organs in Early Postembryonic Development in the Stick Insect (Sipyloidea chlorotica)

Strauß

2024

Insects

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“…Substrate vibrations are transferred to the hemolymph, and the sensory organ is actually oscillating with the hemolymph rather than in the hemolymph (Kilpinen and Storm 1997). Thus, the subgenual organ's oscillations are matched with the hemolymph oscillations and model calculations show that it behaves as an overdamped system (Storm and Kilpinen 1998).The model suggests that the sensory cells of the SGO are displacement sensitive. Velocity threshold curves of SGO neurons from Nezara run in parallel with equal acceleration values below best frequency and in parallel with equal displacement lines above the best frequency (Cokl 1983).…”

Section: Scolopidial Organs In the Proximal Tibiamentioning

confidence: 94%

Functional Morphology and Evolutionary Diversity of Vibration Receptors in Insects

Lakes‐Harlan

Strauß

2014

Animal Signals and Communication

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Vibratory signals of biotic and abiotic origin occur commonly in the environment of all living organisms. Many species deliberately produce such signals for communication purposes. Thus, it is not only useful but also advantageous and/or necessary to be able to detect and process vibratory signals with appropriate receptor organs. Mechanoreception is suggested to be evolutionarily ancient among animals (Kung 2005;Thurm 2001). Given the long evolutionary history, such receptors have very different anatomical structures and corresponding physiological properties. Responding to mechanical stress is a basic property of cells, even outside the nervous system. In the nervous system, specialized sensory cells and organs register mechanosensory signals and impart the information to higher centers. Structural and molecular adaptations in various mechanoreceptors can push these systems to a sensitivity at or near to the physical limits, e.g., with respect to the noise-stimuli relation. Here, we will deal with the vibratory receptor systems of insects, with a focus on the specialized scolopidial sensory organs from molecular mechanisms to systems analysis.

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“…Data from simultaneous recordings with two laser vibrometers are presented as boxplots. Differences between vibration amplitudes picked up at the same body parts (compare TxF in a and b, and FeF in b and c) are due to differences between vibrating individuals [Adapted from Hrncir et al (2006b)] receptor cells (Autrum and Schneider 1948;Kilpinen and Storm 1997;Storm and Kilpinen 1998). When studied electrophysiologically, its sensory cells were most sensitive to vertical vibrations of the leg at frequencies between 150 and 900 Hz, with an average response threshold between 0.06 and 0.15 mm/s peak-peak (Kilpinen and Storm 1997;Rohrseitz and Kilpinen 1997).…”

Section: Substrate Vibrations: Medium-range Transmissionmentioning

confidence: 99%

Vibratory Communication in Stingless Bees (Meliponini): The Challenge of Interpreting the Signals

Hrncir

Barth

2014

Animal Signals and Communication

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Foragers of several species of stingless bees (Apidae; Meliponini), a group of eusocial bees comprising more than 400 mainly tropical species, produce pulsed thoracic vibrations inside the nest when returning from a successful foraging trip. These vibrations do not provide navigational information on the direction and distance of a food source. Instead, both their occurrence and their temporal pattern correlate with the net gain during a foraging trip. The vibrations are therefore considered important information for potential foragers about the profitability of a food patch. Their repeated presentation lowers the foraging threshold of potential food collectors. The vibrations are considered as an alerting signal, which increases the colony's foraging activity. So far, nothing is known about how foragers of stingless bees perceive the pulsed thoracic vibrations of the recruiters. Yet, consideration of the corresponding receptors and their thresholds in honeybees suggests three possible pathways for their transmission to the nestmates: (1) the substrate (vibrations), (2) the air (air particle movements), and (3) direct physical contact (tactile stimuli). The corresponding differ significantly. Whereas substrate vibrations will reach receivers up to ten bee lengths away (medium-range transmission), air particle oscillations and direct vibrations can be detected only by bees very close to, or in contact with, the forager (short-range transmission). Thus, depending on the transmission pathway and the recipient's sensory capacity, the signal generated by thoracic vibrations will have different meanings. Indeed, substrate vibrations attract both food processors and potential foragers to the vibrating bee, whereas air particle oscillations and direct contact vibrations, in addition to important olfactory and gustatory information, may well

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Modelling the subgenual organ of the honeybee, Apis mellifera

Cited by 9 publications

References 15 publications

Functional Morphology of Leg Mechanosensory Organs in Early Postembryonic Development in the Stick Insect (Sipyloidea chlorotica)

Functional Morphology of Leg Mechanosensory Organs in Early Postembryonic Development in the Stick Insect (Sipyloidea chlorotica)

Functional Morphology and Evolutionary Diversity of Vibration Receptors in Insects

Vibratory Communication in Stingless Bees (Meliponini): The Challenge of Interpreting the Signals

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