Dataset Information

Adaptive Changes in the Vestibular System of Land Snail to a 30-Day Spaceflight and Readaptation on Return to Earth.

ABSTRACT: The vestibular system receives a permanent influence from gravity and reflexively controls equilibrium. If we assume gravity has remained constant during the species' evolution, will its sensory system adapt to abrupt loss of that force? We address this question in the land snail Helix lucorum exposed to 30 days of near weightlessness aboard the Bion-M1 satellite, and studied geotactic behavior of postflight snails, differential gene expressions in statocyst transcriptome, and electrophysiological responses of mechanoreceptors to applied tilts. Each approach revealed plastic changes in the snail's vestibular system assumed in response to spaceflight. Absence of light during the mission also affected statocyst physiology, as revealed by comparison to dark-conditioned control groups. Readaptation to normal tilt responses occurred at ~20 h following return to Earth. Despite the permanence of gravity, the snail responded in a compensatory manner to its loss and readapted once gravity was restored.

SUBMITTER: Aseyev N

PROVIDER: S-EPMC5672023 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Adaptive Changes in the Vestibular System of Land Snail to a 30-Day Spaceflight and Readaptation on Return to Earth.

Aseyev Nikolay N Vinarskaya Alia Kh AK Roshchin Matvey M Korshunova Tatiana A TA Malyshev Aleksey Yu AY Zuzina Alena B AB Ierusalimsky Victor N VN Lemak Maria S MS Zakharov Igor S IS Novikov Ivan A IA Kolosov Peter P Chesnokova Ekaterina E Volkova Svetlana S Kasianov Artem A Uroshlev Leonid L Popova Yekaterina Y Boyle Richard D RD Balaban Pavel M PM

Frontiers in cellular neuroscience 20171101

The vestibular system receives a permanent influence from gravity and reflexively controls equilibrium. If we assume gravity has remained constant during the species' evolution, will its sensory system adapt to abrupt loss of that force? We address this question in the land snail <i>Helix lucorum</i> exposed to 30 days of near weightlessness aboard the Bion-M1 satellite, and studied geotactic behavior of postflight snails, differential gene expressions in statocyst transcriptome, and electrophys ...[more]

PMID: 29163058

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Dataset Information

Adaptive Changes in the Vestibular System of Land Snail to a 30-Day Spaceflight and Readaptation on Return to Earth.

Publications

Adaptive Changes in the Vestibular System of Land Snail to a 30-Day Spaceflight and Readaptation on Return to Earth.

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