Light and Temperature Synchronizes Locomotor Activity in the Linden Bug, Pyrrhocoris apterus

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43901437" target="_blank" >RIV/60076658:12310/20:43901437 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/20:00523578

Result on the web

<a href="https://www.frontiersin.org/articles/10.3389/fphys.2020.00242/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fphys.2020.00242/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fphys.2020.00242" target="_blank" >10.3389/fphys.2020.00242</a>

Result language

angličtina

Original language name

Light and Temperature Synchronizes Locomotor Activity in the Linden Bug, Pyrrhocoris apterus

Original language description

Circadian clocks are synchronized with the external environment by light and temperature. The effect of these cues on behavior is well-characterized in Drosophila, however, little is known about synchronization in non-model insect species. Therefore, we explored entrainment of locomotor activity by light and temperature in the linden bug Pyrrhocoris apterus (Heteroptera), an insect species with a strong seasonal response (reproductive diapause), which is triggered by both photoperiod and thermoperiod. Our results show that either light or temperature cycles are strong factors entraining P. apterus locomotor activity. Pyrrhocoris is able to be partially synchronized by cycles with temperature amplitude as small as 3 degrees C and more than 50% of bugs is synchronized by 5 degrees C steps. If conflicting zeitgebers are provided, light is the stronger signal. Linden bugs lack light-sensitive (Drosophila-like) cryptochrome. Notably, a high percentage of bugs is rhythmic even in constant light (LL) at intensity similar to 400 lux, a condition which induces 100% arrhythmicity in Drosophila. However, the rhythmicity of bugs is still reduced in LL conditions, whereas rhythmicity remains unaffected in constant dark (DD). Interestingly, a similar phenomenon is observed after temperature cycles entrainment. Bugs released to constant thermophase and DD display weak rhythmicity, whereas strong rhythmicity is observed in bugs released to constant cryophase and DD. Our study describes the daily and circadian behavior of the linden bug as a response to photoperiodic and thermoperiodic entraining cues. Although the molecular mechanism of the circadian clock entrainment in the linden bug is virtually unknown, our study contributes to the knowledge of the insect circadian clock features beyond Drosophila research.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in Physiology

ISSN

1664-042X

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

APR 2 2020

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

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UT code for WoS article

000596916600001

EID of the result in the Scopus database

2-s2.0-85083490270