someone summarize it for me..im lazy .
The digital verision is not up on their website yet, or I would post the link. But heres the "Summary" section.
SUMMARY
* Blue light is of major importance for the colorfullness of corals and influences both the production of color pigments and their visibility. However, certain species and pigment groups react in different was to changes in lighting.
* GFP-like proteins are often responsibile for the intense color of corals. In order for a coral to be colorful, the genese that encode the proteins must not only be present, but also sufficiently active. Certain species or color morphs never become colorful despite optimal conditions.
* In some species, pink, violet and blue chromoproteins are produced only under sufficiently intense blue light. On the other hand, too high of a blue component in the lighting can reduce the visibility of these pigments. In order to improve the visibility of these colors there should be adequate amounts of red light in the spectrum of the lamp(s).
In our experience a high production of these proteins with simultaneous good visibility can be achieved with a color combination of around 13,000 kelvin.
* The production of certain green and red fluorescent proteins can be stimulated by an increased amount of blue light. However, in some cases blue-green fluorescent proteins were "turned down" under high light intensities. Not all species of coral react in the same way (see table). But in large-polyp stony corals the amount the amount of light often appears to have no influence on the concentration of these pigments in tissue.
* Red fluorescent proteins from large-poly stony corals often require violet-blue light for ripening, although low concentrations are sufficient to effect this conversion.
* The visibility of blue-green and green fluorescent proteins is improved by a high blue component in the lighting. On the other hand, pure blue light can have a negative effect on the visibility of red fluorescent proteins, if these aren't stimulated indirectly via gree fluorescent states.
* If the nutrient content of the water decreases, then so will the zooxanthellae density in the coral tissue, and this may benefit both the visibility and production of GFP-like pigments.
* In the interest of the livestock, and in order to increase their colorfulness, efforts should be made to provide optimal conditions for growth. Only if the animals have adequate energy reserves can they synthesize GFP-like proteins in large quantities. Moreover, it appears that in some cases the production of these pigments is directly linked with growth processes. A lower nutrient content in the water can , under certain circumstances, have a positive effect on pigment production in some species.
* When conducting experiments with altered light intensities, it should be noted that the adaptation of corals to increased amounts of light or an increased blue component requires several days to weeks. If the animals are exposed too quickly to these new conditions, the results can be light shock and suddent loss of zooxanthellae, which often leads to increased mortality in the corals.
* Bear in mind that as they evolve, corals have adapted to different degrees to exposure to light in different parts of the coral reef. These genetically determined light-tolerance boundaries cannot be altered in the aquarium even by slow acclimatization. Animals from habitats with lower light exposure, for example
lobophylia hemprichii, will suffer under the intense lighting necessary for good growth in a number of reef-top
acropora species.
Blue Light Online References
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Bibliographic References for
Blue Light and Its Importance for the Colors of Stony CoralsBy Cecilia D’Angelo and Jörg Wiedenmann
CORAL Magazine, November/December 2011
Pages 64-76
References
Alieva, N.O., et al. 2008. Diversity and evolution of coral fluorescent proteins. PLoS ONE 3 (7): e2680.
Baird, G.S., D.A. Zacharias, & R.Y. Tsien. 2000. Biochemistry, mutagenesis, and oligomerization of DsRed, a red fluorescent protein from coral. Proc Natl Acad Sci USA 97 (22): 11984–9.
D’Angelo, C., et al. 2008. Blue light regulation of host pigment in reef-building corals. Mar Ecol Prog Ser 364: 97–106.
Fox, D.L & C.F.A. Pantin. 1941. The colours of the plumose anemone Metridium senile (L.). Phil Trans R Soc Lond B 230 (574), 415–50.
Fox, D.L., D.W. Wilkie, & F.T. Haxo. 1978. Carotenoid fractionation in the plumose anemone Metridium—II. Search for dietary sources of ovarian astaxanthin. Comp Biochem Physiol B-Biochem Mol Biol 59 (4): 289–94.
Glynn, P.W. 1993. Coral-reef bleaching—Ecological perspectives. Coral Reefs 12 (1): 117.
Guella, G., I. Mancini, H. Zibrowius, & F. Pietra. 2004. Novel Aplysinopsin-Type Alkaloids from Scleractinian Corals of the Family Dendrophylliidae of the Mediterranean and the
Philippines. Configurational-assignment criteria, stereospecific synthesis, and photoisomerization. Helvetica Chim Acta 71 (4): 773–82.
Hertzberg, S., S. Liaaen-Jensen, C.R. Enzell, & G.W. Francis. 1969. Animal Carotenoids, 3. The carotenoids of Actinia equina—Structure determination of actinioerythrin and violerythrin. Acta Chem Scand 23: 3290–312.
Kelmanson, I.V. & M.V. Matz. 2003. Molecular basis and evolutionary origins of color diversity in great star coral Montastraea cavernosa (Scleractinia: Faviida). Mol Biol Evol 20 (7): 1125–33.
Leverette, C.L., M. Warren, M.-A. Smith, & G.W. Smith. 2008. Determination of carotenoid as the purple pigment in Gorgonia ventalina sclerites using Raman microscopy. Spectrochim Acta A 69 (3): 1058–61.
Leutenegger, A., et al. 2007a. Analysis of fluorescent and non-fluorescent sea anemones from the Mediterranean Sea during a bleaching event. J Exp Mar Biol Ecol 353 (2): 221–34.
Leutenegger, A., et al. 2007b. It’s cheap to be colorful. Anthozoans show a slow turnover of GFP-like proteins. FEBS J 274 (10): 2496–505.
Matz, M.V., et al. 1999. Fluorescent proteins from nonbioluminescent Anthozoa species. Nat Biotechnol 17 (10): 969–73.
Muscatine, L. 1971. Experiments on green algae coexistent with zooxanthellae in sea anemones. Pac Sci 25: 13–21.
Nienhaus, K., G.U. Nienhaus, J. Wiedenmann, & H. Nar. 2005. Structural basis for photo-induced protein cleavage and green-to-red conversion of fluorescent protein. EosFP Proc Natl Acad Sci USA 102 (26): 9156–59.
Nienhaus, K. & J. Wiedenmann. 2009. Structure, Dynamics and Optical Properties of Fluorescent Proteins: Perspectives for Marker Development. Chemphyschem, 10 (9–10): 1369–79.
Oswald, F., et al. 2007. Contributions of host and symbiont pigments to the coloration of reef corals. FEBS J 274 (4), 1102–9.
Prescott, M., et al. 2003. The 2.2 A crystal structure of a pocilloporin pigment reveals a nonplanar chromophore conformation. Structure 11 (3): 275–84.
Rho, J.-R, et al. 1996. Isolation of a new carotenoid pigment from an undescribed gorgonian of the genus Muricella. Bull Korean Chem Soc 17 (6): 529–31.
Taylor, D.L. 1969. The nutritional relationship of Anemonia sulcata (Pennant) and its dinoflagellate symbiont. J Cell Sci 4: 751–62.
Wiedenmann, J., C. Röcker, & W. Funke. 1999. The morphs of Anemonia aff. sulcata (Cnidaria, Anthozoa) in particular consideration of the ectodermal pigments. Verhandlungen der GfÖ 29: 497–503.
Wiedenmann, J., P. Kraus, W. Funke, & W. Vogel. 2000. The relationship between different morphs of Anemonia aff. sulcata evaluated by DNA fingerprinting (Anthozoa, Actinaria). Ophelia 52 (1): 57–64.
Wiedenmann, J., et al. 2002. A far-red fluorescent protein with almost maturation and reduced oligomerization tendency from Entacmaea quadricolor (Anthozoa, Actinaria). Proc Natl Acad Sci USA 99 (18): 11646–51.
Wiedenmann, J., et al. 2004. EosFP, a fluorescent marker protein with UV-inducible green-to-red fluorescence conversion. Proc Natl Acad Sci USA 101 (45): 15905–10.
Wiedenmann, J. 2008. Fluoreszenzfarbstoffe der Nesseltiere. KORALLE 5 (3), 26–31.
