A new species of sea anemone (Anthozoa: Actiniaria) from the Sea of Japan: &lt;i&gt;Cribrinopsis japonica&lt;/i&gt; sp. nov.

Tsutsui, Kenta; Hatada, Yuji; Tsuruwaka, Yusuke

doi:10.3800/pbr.9.197

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…In this study, the photobiology of the deep-sea actiniarian Cribrinopsis japonica Tsutsui & Tsuruwaka, 2014, collected from a depth of 800 m, was explored (Tsutsui et al 2014). In order to test the hypothesis that this deep-sea anemone was photosensitive to a blue region of the visual light spectrum like other deep-sea organisms, the following characteristics were examined: (1) behavioural response to blue light, (2) colour sensitivity, and (3) photosensitivity to diminished intensity of light.…”

Section: Introductionmentioning

confidence: 99%

Deep-sea anemone (Cnidaria: Actiniaria) exhibits a positive behavioural response to blue light

Tsutsui

Shimada

Tsuruwaka

2015

Marine Biology Research

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The photobiology of sea anemones in shallow waters has been studied extensively in recent decades, while that of deepdwelling species remains unclear. There is evidence that many deep-sea organisms are sensitive to blue light, and it may hold for sea anemones as well. The present study tested the hypothesis that the sea anemone Cribrinopsis japonica, caught at the depth of 800 m, is photosensitive to blue light, focusing on whether this anemone (1) showed behavioural responses to blue light, (2) possessed colour sensitivity, and (3) detected diminished intensity of light. When exposed to blue and red light separately, the anemone was behaviourally more sensitive to blue light than red light. The initiated behaviour was positive and immediate, and consisted of an increase in the area covered by tentacles and contraction of the column, which is considered as preparatory feeding behaviour. The anemone's sensitivity to diminished intensity of light within the peak wavelength of bioluminescence opens up the possibility that the deep-sea anemone senses the presence of bioluminescent organisms.

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Section: Introductionmentioning

confidence: 99%

Deep-sea anemone (Cnidaria: Actiniaria) exhibits a positive behavioural response to blue light

Tsutsui

Shimada

Tsuruwaka

2015

Marine Biology Research

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“…In the case of C. japonica , the anemone is usually surrounded by a co-living shrimp under laboratory conditions ( Fig. 6 ) and often captured along with these shrimp at the depth of 800 m 26 . Hence, the anemone probably attracts the shrimp via visual or chemical cues.…”

Section: Discussionmentioning

confidence: 99%

A novel fluorescent protein from the deep-sea anemone Cribrinopsis japonica (Anthozoa: Actiniaria)

Tsutsui

Shimada

Ogawa

et al. 2016

Sci Rep

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A fluorescent protein was identified and cloned from the deep-sea anemone Cribrinopsis japonica. Bioluminescence and fluorescence expression were examined by direct observations of live specimens and RNA-Seq analysis. Both approaches revealed a novel green fluorescent protein in the tentacles of the anemone, but bioluminescence was not observed. Behavioural observations revealed that a blue light excited the fluorescence in the tentacles, and initiated a behavioural response whereby the fluorescent tentacles became fully exposed to the blue light. The excitation and emission peaks of C. japonica’s fluorescent protein were at 500 and 510 nm, respectively, which were greener than those reported in homologs. Furthermore, this protein was highly tolerant of increased temperatures and repeated freeze–thaw treatments. The current study presents an example of fluorescence in a deep-sea cnidarian, demonstrating that fluorescent proteins could have important roles, regardless of the presence or absence of strong sunlight. It also demonstrates that this deep-sea fluorescent protein has unique characteristics, including high stability, perhaps as an adaptation to the extreme environment.

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A revision of sea anemones of the genus Cribrinopsis Carlgren, 1921(Actiniaria: Actiniidae) from British Columbia with the description of a new species

Sanamyan

McDaniel³

et al. 2019

Mar Biodiv

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A new species of sea anemone (Anthozoa: Actiniaria) from the Sea of Japan: <i>Cribrinopsis japonica</i> sp. nov.

Cited by 5 publications

References 10 publications

Deep-sea anemone (Cnidaria: Actiniaria) exhibits a positive behavioural response to blue light

Deep-sea anemone (Cnidaria: Actiniaria) exhibits a positive behavioural response to blue light

A novel fluorescent protein from the deep-sea anemone Cribrinopsis japonica (Anthozoa: Actiniaria)

A revision of sea anemones of the genus Cribrinopsis Carlgren, 1921(Actiniaria: Actiniidae) from British Columbia with the description of a new species

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