The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm

Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt

Standard

The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm. / Flensburg, Sarah B.; Garm, Anders; Funch, Peter.

I: Journal of Experimental Biology, Bind 225, Nr. 24, 244751, 2022.

Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt

Harvard

Flensburg, SB, Garm, A & Funch, P 2022, 'The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm', Journal of Experimental Biology, bind 225, nr. 24, 244751. https://doi.org/10.1242/jeb.244751

APA

Flensburg, S. B., Garm, A., & Funch, P. (2022). The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm. Journal of Experimental Biology, 225(24), [244751]. https://doi.org/10.1242/jeb.244751

Vancouver

Flensburg SB, Garm A, Funch P. The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm. Journal of Experimental Biology. 2022;225(24). 244751. https://doi.org/10.1242/jeb.244751

Author

Flensburg, Sarah B. ; Garm, Anders ; Funch, Peter. / The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm. I: Journal of Experimental Biology. 2022 ; Bind 225, Nr. 24.

Bibtex

@article{8495f7a5a62c42eb8ecf0f49415dcba5,

title = "The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm",

abstract = "Sponges (phylum Porifera) are metazoans which lack muscles and nerve cells, yet perform coordinated behaviours such as whole-body contractions. Previous studies indicate diurnal variability in both the number of contractions and the expression of circadian clock genes. Here, we show that diurnal patterns are present in the contraction-expansion behaviour of the demosponge Tethya wilhelma, by using infrared videography and a simulated night/day cycle including sunrise and sunset mimics. In addition, we show that this behaviour is at least strongly influenced by ambient light intensity and therefore indicates light-sensing capabilities in this sponge species. This is supported by our finding that T. wilhelma consistently contracts at sunrise, and that this pattern disappears both when the sponge is kept in constant darkness and when it is in constant light.",

keywords = "Porifera, Pre-nervous system, Light reception, Behavioural control, Diurnal rhythmicity, INTERTIDAL SPONGE, NERVOUS-SYSTEM, RELEASE, GLUTAMATE, DYNAMICS, PORIFERA, SIGNAL, GABA",

author = "Flensburg, {Sarah B.} and Anders Garm and Peter Funch",

year = "2022",

doi = "10.1242/jeb.244751",

language = "English",

volume = "225",

journal = "Journal of Experimental Biology",

issn = "0022-0949",

publisher = "The/Company of Biologists Ltd.",

number = "24",

}

RIS

TY - JOUR

T1 - The contraction-expansion behaviour in the demosponge Tethya wilhelma is light controlled and follows a diurnal rhythm

AU - Flensburg, Sarah B.

AU - Garm, Anders

AU - Funch, Peter

PY - 2022

Y1 - 2022

N2 - Sponges (phylum Porifera) are metazoans which lack muscles and nerve cells, yet perform coordinated behaviours such as whole-body contractions. Previous studies indicate diurnal variability in both the number of contractions and the expression of circadian clock genes. Here, we show that diurnal patterns are present in the contraction-expansion behaviour of the demosponge Tethya wilhelma, by using infrared videography and a simulated night/day cycle including sunrise and sunset mimics. In addition, we show that this behaviour is at least strongly influenced by ambient light intensity and therefore indicates light-sensing capabilities in this sponge species. This is supported by our finding that T. wilhelma consistently contracts at sunrise, and that this pattern disappears both when the sponge is kept in constant darkness and when it is in constant light.

AB - Sponges (phylum Porifera) are metazoans which lack muscles and nerve cells, yet perform coordinated behaviours such as whole-body contractions. Previous studies indicate diurnal variability in both the number of contractions and the expression of circadian clock genes. Here, we show that diurnal patterns are present in the contraction-expansion behaviour of the demosponge Tethya wilhelma, by using infrared videography and a simulated night/day cycle including sunrise and sunset mimics. In addition, we show that this behaviour is at least strongly influenced by ambient light intensity and therefore indicates light-sensing capabilities in this sponge species. This is supported by our finding that T. wilhelma consistently contracts at sunrise, and that this pattern disappears both when the sponge is kept in constant darkness and when it is in constant light.

KW - Porifera

KW - Pre-nervous system

KW - Light reception

KW - Behavioural control

KW - Diurnal rhythmicity

KW - INTERTIDAL SPONGE

KW - NERVOUS-SYSTEM

KW - RELEASE

KW - GLUTAMATE

KW - DYNAMICS

KW - PORIFERA

KW - SIGNAL

KW - GABA

U2 - 10.1242/jeb.244751

DO - 10.1242/jeb.244751

M3 - Letter

C2 - 36546534

VL - 225

JO - Journal of Experimental Biology

JF - Journal of Experimental Biology

SN - 0022-0949

IS - 24

M1 - 244751

ER -

ID: 338532648