Repair of UV-induced DNA damage in shallow water colonial marine species

Svanfeldt, Karin; Lundqvist, Lotta; Rabinowitz, Claudette; Sköld, Helén Nilsson; Rinkevich, Baruch

doi:10.1016/j.jembe.2013.12.003

Cited by 21 publications

(11 citation statements)

References 75 publications

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“…The differences in MAA concentration found among the fluorescent morphs might also be accompanied by a change in the composition of MAAs among these morphs, as demonstrated in Porites astreoides 8 . Corals have a rapid and efficient DNA repair mechanism compared to other organisms 56 , but since they were sampled during midday, we infer that the results represent the maximal damage of an average day. Both CPDs and 6-4PPs result in the deformation of the DNA helix, which causes a downstream effect.…”

Section: Discussionmentioning

confidence: 94%

Response of fluorescence morphs of the mesophotic coral Euphyllia paradivisa to ultra-violet radiation

Ben-Zvi

Eyal

Loya

2019

Sci Rep

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Euphyllia paradivisa is a strictly mesophotic coral in the reefs of Eilat that displays a striking color polymorphism, attributed to fluorescent proteins (FPs). FPs, which are used as visual markers in biomedical research, have been suggested to serve as photoprotectors or as facilitators of photosynthesis in corals due to their ability to transform light. Solar radiation that penetrates the sea includes, among others, both vital photosynthetic active radiation (PAR) and ultra-violet radiation (UVR). Both types, at high intensities, are known to have negative effects on corals, ranging from cellular damage to changes in community structure. In the present study, fluorescence morphs of E . paradivisa were used to investigate UVR response in a mesophotic organism and to examine the phenomenon of fluorescence polymorphism. E . paradivisa , although able to survive in high-light environments, displayed several physiological and behavioral responses that indicated severe light and UVR stress. We suggest that high PAR and UVR are potential drivers behind the absence of this coral from shallow reefs. Moreover, we found no significant differences between the different fluorescence morphs’ responses and no evidence of either photoprotection or photosynthesis enhancement. We therefore suggest that FPs in mesophotic corals might have a different biological role than that previously hypothesized for shallow corals.

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Section: Discussionmentioning

confidence: 94%

Response of fluorescence morphs of the mesophotic coral Euphyllia paradivisa to ultra-violet radiation

Ben-Zvi

Eyal

Loya

2019

Sci Rep

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“…Nevertheless, the authors concluded that the use of B. schlosseri blood cells should be validated through additional research [66]. Hence, the DNA damaging effect of UV irradiation and subsequent repair were measured in B. schlosseri indicating significant DNA damage but low repair capacity [67].…”

Section: Chordatesmentioning

confidence: 99%

The comet assay in animal models: From bugs to whales – (Part 2 Vertebrates)

Gajski

Žegura

Ladeira

et al. 2019

Mutation Research/Reviews in Mutation Research

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The comet assay has become one of the methods of choice for the evaluation and measurement of DNA damage. It is sensitive, quick to perform and relatively affordable for the evaluation of DNA damage and repair at the level of individual cells. The comet assay can be applied to virtually any cell type derived from different organs and tissues. Even though the comet assay is predominantly used on human cells, the application of the assay for the evaluation of DNA damage in yeast, plant and animal cells is also quite high, especially in terms of biomonitoring. The present extensive overview on the usage of the comet assay in animal models will cover both terrestrial and water environments. The first part of the review was focused on studies describing the comet assay applied in invertebrates. The second part of the review, (Part 2) will discuss the application of the comet assay in vertebrates covering cyclostomata, fishes, amphibians, reptiles, birds and mammals, in addition to chordates that are regarded as a transitional form towards vertebrates. Besides numerous vertebrate species, the assay is also performed on a range of cells, which includes blood, liver, kidney, brain, gill, bone marrow and sperm cells. These cells are readily used for the evaluation of a wide spectrum of genotoxic agents both in vitro and in vivo. Moreover, the use of vertebrate models and their role in environmental biomonitoring will also be discussed as well as the comparison of the use of the comet assay in vertebrate and human models in line with ethical principles. Although the comet assay in vertebrates is most commonly used in laboratory animals such as mice, rats and lately zebrafish, this paper will only briefly review its use regarding laboratory animal models and rather give special emphasis to the increasing usage of the assay in domestic and wildlife animals as well as in various ecotoxicological studies.

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“…286 Photoprotective defense mechanisms differ widely among species of phytoplankton 287 and invertebrates. 288 UV-induced changes in the composition of species at one trophic level can have consequences for other trophic levels. For example, concentrations of fatty acids in sub-Antarctic phytoplanktonic algae, important to grazing zooplankton, increase when these algae are grown without UV-B radiation.…”

Section: Climate Change Is Altering the Exposure Of Aquatic Ecosystem...mentioning

confidence: 99%

Environmental effects of ozone depletion and its interactions with climate change: progress report, 2015

2016

Photochem Photobiol Sci

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The Environmental Effects Assessment Panel (EEAP) is one of three Panels that regularly informs the Parties (countries) to the Montreal Protocol on the effects of ozone depletion and the consequences of climate change interactions with respect to human health, animals, plants, biogeochemistry, air quality, and materials. The Panels provide a detailed assessment report every four years. The most recent 2014 Quadrennial Assessment by the EEAP was published as a special issue of seven papers in 2015 (Photochem. Photobiol. Sci., 2015, 14, 1-184). The next Quadrennial Assessment will be published in 2018/2019. In the interim, the EEAP generally produces an annual update or progress report of the relevant scientific findings. The present progress report for 2015 assesses some of the highlights and new insights with regard to the interactive nature of the effects of UV radiation, atmospheric processes, and climate change.

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Repair of UV-induced DNA damage in shallow water colonial marine species

Cited by 21 publications

References 75 publications

Response of fluorescence morphs of the mesophotic coral Euphyllia paradivisa to ultra-violet radiation

Response of fluorescence morphs of the mesophotic coral Euphyllia paradivisa to ultra-violet radiation

The comet assay in animal models: From bugs to whales – (Part 2 Vertebrates)

Environmental effects of ozone depletion and its interactions with climate change: progress report, 2015

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