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Bass AH. A tale of two males: Behavioral and neural mechanisms of alternative reproductive tactics in midshipman fish. Horm Behav 2024; 161:105507. [PMID: 38479349 DOI: 10.1016/j.yhbeh.2024.105507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 05/04/2024]
Abstract
An amalgam of investigations at the interface of neuroethology and behavioral neuroendocrinology first established the most basic behavioral, neuroanatomical, and neurophysiological characters of vocal-acoustic communication morphs in the plainfin midshipman fish, Porichthys notatus Girard. This foundation has led, in turn, to the repeated demonstration that neuro-behavioral mechanisms driving reproductive-related, vocal-acoustic behaviors can be uncoupled from gonadal state for two adult male phenotypes that follow alternative reproductive tactics (ARTs).
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Affiliation(s)
- Andrew H Bass
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA.
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Lau ES, Oakley TH. Multi-level convergence of complex traits and the evolution of bioluminescence. Biol Rev Camb Philos Soc 2020; 96:673-691. [PMID: 33306257 DOI: 10.1111/brv.12672] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022]
Abstract
Evolutionary convergence provides natural opportunities to investigate how, when, and why novel traits evolve. Many convergent traits are complex, highlighting the importance of explicitly considering convergence at different levels of biological organization, or 'multi-level convergent evolution'. To investigate multi-level convergent evolution, we propose a holistic and hierarchical framework that emphasizes breaking down traits into several functional modules. We begin by identifying long-standing questions on the origins of complexity and the diverse evolutionary processes underlying phenotypic convergence to discuss how they can be addressed by examining convergent systems. We argue that bioluminescence, a complex trait that evolved dozens of times through either novel mechanisms or conserved toolkits, is particularly well suited for these studies. We present an updated estimate of at least 94 independent origins of bioluminescence across the tree of life, which we calculated by reviewing and summarizing all estimates of independent origins. Then, we use our framework to review the biology, chemistry, and evolution of bioluminescence, and for each biological level identify questions that arise from our systematic review. We focus on luminous organisms that use the shared luciferin substrates coelenterazine or vargulin to produce light because these organisms convergently evolved bioluminescent proteins that use the same luciferins to produce bioluminescence. Evolutionary convergence does not necessarily extend across biological levels, as exemplified by cases of conservation and disparity in biological functions, organs, cells, and molecules associated with bioluminescence systems. Investigating differences across bioluminescent organisms will address fundamental questions on predictability and contingency in convergent evolution. Lastly, we highlight unexplored areas of bioluminescence research and advances in sequencing and chemical techniques useful for developing bioluminescence as a model system for studying multi-level convergent evolution.
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Affiliation(s)
- Emily S Lau
- Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, 93106, U.S.A
| | - Todd H Oakley
- Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, 93106, U.S.A
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Valiadi M, de Rond T, Amorim A, Gittins JR, Gubili C, Moore BS, Iglesias-Rodriguez MD, Latz MI. Molecular and biochemical basis for the loss of bioluminescence in the dinoflagellate Noctiluca scintillans along the west coast of the USA. LIMNOLOGY AND OCEANOGRAPHY 2019; 64:2709-2724. [PMID: 32655189 PMCID: PMC7351363 DOI: 10.1002/lno.11309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 07/16/2019] [Indexed: 06/11/2023]
Abstract
The globally distributed heterotrophic dinoflagellate Noctiluca scintillans (Macartney) Kofoid & Swezy is well known for its dense blooms and prominent displays of bioluminescence. Intriguingly, along the west coast of the USA its blooms are not bioluminescent. We investigated the basis for the regional loss of bioluminescence using molecular, cellular and biochemical analyses of isolates from different geographic regions. Prominent differences of the non-bioluminescent strains were: (1) the fused luciferase and luciferin binding protein gene (lcf/lbp) was present but its transcripts were undetectable; (2) lcf/lbp contained multiple potentially deleterious mutations; (3) the substrate luciferin was absent, based on the lack of luciferin blue autofluorescence and the absence of luciferin derived metabolites; (4) although the cells possessed scintillons, the vesicles that contain the luminescent chemistry, electron microscopy revealed additional scintillon-like vesicles with an atypical internal structure; (5) cells isolated from the California coast were 43% smaller in size than bioluminescent cells from the Gulf of Mexico. Phylogenetic analyses based on the large subunit of rDNA did not show divergence of the non-bioluminescent population in relation to other bioluminescent N. scintillans from the Pacific Ocean and Arabian Sea. Our study demonstrates that gene silencing and the lack of the luciferin substrate have resulted in the loss of a significant dinoflagellate functional trait over large spatial scales in the ocean. As the bioluminescence system of dinoflagellates is well characterized, non-bioluminescent N. scintillans is an ideal model to explore the evolutionary and ecological mechanisms that lead to intraspecific functional divergence in natural dinoflagellate populations.
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Affiliation(s)
- Martha Valiadi
- University of Southampton, Ocean and Earth Science, National Oceanography Centre, Southampton SO14 3ZH, UK
- Present address: University of Exeter, Living Systems Institute, Biosciences, UK
| | - Tristan de Rond
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Ana Amorim
- Universidade de Lisboa, Faculdade de Ciências, Marine and Environmental Sciences Centre, 1749-016 Lisbon, Portugal
| | - John R Gittins
- University of Southampton, Ocean and Earth Science, National Oceanography Centre, Southampton SO14 3ZH, UK
| | - Chrysoula Gubili
- Hellenic Agricultural Organization, Fisheries Research Institute, Nea Peramos, Kavala, 64007, Macedonia, Greece
| | - Bradley S Moore
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - M Debora Iglesias-Rodriguez
- University of Southampton, Ocean and Earth Science, National Oceanography Centre, Southampton SO14 3ZH, UK
- Present address: University of California Santa Barbara, Department for Ecology, Evolution and Marine Biology, Santa Barbara, California, USA
| | - Michael I Latz
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
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Markova SV, Vysotski ES. Coelenterazine-dependent luciferases. BIOCHEMISTRY (MOSCOW) 2015; 80:714-32. [DOI: 10.1134/s0006297915060073] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Oba Y, Schultz DT. Eco-evo bioluminescence on land and in the sea. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 144:3-36. [PMID: 25084993 DOI: 10.1007/978-3-662-43385-0_1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
This review discusses the evolution of bioluminescence organisms that inhabit various environments based on the current understanding of their unique ecologies and biochemistries. As shown here, however, there are still many unanswered questions regarding the functions and mechanisms of bioluminescence, which should be investigated in further studies. To facilitate future research in this field, we introduce our recent attempt, the bioluminescent organism DNA barcode initiative. This genetic reference library will provide resources for other scientists to efficiently identify unstudied bioluminescent organisms, focus their biochemical and genetic research goals, and will generally promote bioluminescence as a field of scientific study.
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Affiliation(s)
- Yuichi Oba
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan,
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Genomic organization, evolution, and expression of photoprotein and opsin genes in Mnemiopsis leidyi: a new view of ctenophore photocytes. BMC Biol 2012; 10:107. [PMID: 23259493 PMCID: PMC3570280 DOI: 10.1186/1741-7007-10-107] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 12/21/2012] [Indexed: 11/26/2022] Open
Abstract
Background Calcium-activated photoproteins are luciferase variants found in photocyte cells of bioluminescent jellyfish (Phylum Cnidaria) and comb jellies (Phylum Ctenophora). The complete genomic sequence from the ctenophore Mnemiopsis leidyi, a representative of the earliest branch of animals that emit light, provided an opportunity to examine the genome of an organism that uses this class of luciferase for bioluminescence and to look for genes involved in light reception. To determine when photoprotein genes first arose, we examined the genomic sequence from other early-branching taxa. We combined our genomic survey with gene trees, developmental expression patterns, and functional protein assays of photoproteins and opsins to provide a comprehensive view of light production and light reception in Mnemiopsis. Results The Mnemiopsis genome has 10 full-length photoprotein genes situated within two genomic clusters with high sequence conservation that are maintained due to strong purifying selection and concerted evolution. Photoprotein-like genes were also identified in the genomes of the non-luminescent sponge Amphimedon queenslandica and the non-luminescent cnidarian Nematostella vectensis, and phylogenomic analysis demonstrated that photoprotein genes arose at the base of all animals. Photoprotein gene expression in Mnemiopsis embryos begins during gastrulation in migrating precursors to photocytes and persists throughout development in the canals where photocytes reside. We identified three putative opsin genes in the Mnemiopsis genome and show that they do not group with well-known bilaterian opsin subfamilies. Interestingly, photoprotein transcripts are co-expressed with two of the putative opsins in developing photocytes. Opsin expression is also seen in the apical sensory organ. We present evidence that one opsin functions as a photopigment in vitro, absorbing light at wavelengths that overlap with peak photoprotein light emission, raising the hypothesis that light production and light reception may be functionally connected in ctenophore photocytes. We also present genomic evidence of a complete ciliary phototransduction cascade in Mnemiopsis. Conclusions This study elucidates the genomic organization, evolutionary history, and developmental expression of photoprotein and opsin genes in the ctenophore Mnemiopsis leidyi, introduces a novel dual role for ctenophore photocytes in both bioluminescence and phototransduction, and raises the possibility that light production and light reception are linked in this early-branching non-bilaterian animal.
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Thuesen EV, Goetz FE, Haddock SHD. Bioluminescent organs of two deep-sea arrow worms, Eukrohnia fowleri and Caecosagitta macrocephala, with further observations on Bioluminescence in chaetognaths. THE BIOLOGICAL BULLETIN 2010; 219:100-111. [PMID: 20972255 DOI: 10.1086/bblv219n2p100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Bioluminescence in the deep-sea chaetognath Eukrohnia fowleri is reported for the first time, and behavioral, morphological, and chemical characteristics of bioluminescence in chaetognaths are examined. Until this study, the only known species of bioluminescent chaetognath was Caecosagitta macrocephala. The luminescent organ of that species is located on the ventral edge of each anterior lateral fin, whereas that of E. fowleri runs across the center of the tail fin on both dorsal and ventral sides. Scanning electron microscopy showed that the bioluminescent organs of both species consist of hexagonal chambers containing elongate ovoid particles-the organelles holding bioluminescent materials. No other luminous organism is known to use hexagonal packing to hold bioluminescent materials. Transmission electron microscopy of particles from C. macrocephala revealed a densely packed paracrystalline matrix punctuated by globular inclusions, which likely correspond to luciferin and luciferase, respectively. Both species use unique luciferases in conjunction with coelenterazine for light emission. Luciferase of C. macrocephala becomes inactive after 30 min, but luciferase of E. fowleri is highly stable. Although C. macrocephala has about 90 times fewer particles than E. fowleri, it has a similar bioluminescent capacity (total particle volume) due to its larger particle size. In situ observations of C. macrocephala from a remotely operated vehicle revealed that the luminous particles are released to form a cloud. The discovery of bioluminescence in a second chaetognath phylogenetically distant from the first highlights the importance of bioluminescence among deep-sea organisms.
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Affiliation(s)
- Erik V Thuesen
- Laboratory 1, Evergreen State College, Olympia, Washington 98505, USA
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Abstract
Bioluminescence spans all oceanic dimensions and has evolved many times--from bacteria to fish--to powerfully influence behavioral and ecosystem dynamics. New methods and technology have brought great advances in understanding of the molecular basis of bioluminescence, its physiological control, and its significance in marine communities. Novel tools derived from understanding the chemistry of natural light-producing molecules have led to countless valuable applications, culminating recently in a related Nobel Prize. Marine organisms utilize bioluminescence for vital functions ranging from defense to reproduction. To understand these interactions and the distributions of luminous organisms, new instruments and platforms allow observations on individual to oceanographic scales. This review explores recent advances, including the chemical and molecular, phylogenetic and functional, community and oceanographic aspects of bioluminescence.
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Affiliation(s)
- Steven H D Haddock
- Monterey Bay Aquarium Research Institute, Moss Landing, California 95039, USA.
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Oba Y, Tsuduki H, Kato SI, Ojika M, Inouye S. Identification of the luciferin-luciferase system and quantification of coelenterazine by mass spectrometry in the deep-sea luminous ostracod Conchoecia pseudodiscophora. Chembiochem 2005; 5:1495-9. [PMID: 15515099 DOI: 10.1002/cbic.200400102] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The bioluminescence system of the ostracod Conchoecia pseudodiscophora, which is abundant in the Sea of Japan, has been characterized. The luminescence (lambda(max)=463 nm) is produced by a luciferin-luciferase reaction, and the luciferin has been identified as coelenterazine. Coelenterazine, coelenteramide, and coelenteramine from C. pseudodiscophora were quantified by LC-ESI-MS/MS analysis. The coelenterazine content was estimated to be approximately 230 pg per animal by using a calibration curve of synthetic coelenterazine. The reaction between homogenates of C. pseudodiscophora and synthetic coelenterazine showed luminescence activity; this suggests that a coelenterazine-type luciferase is present.
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Affiliation(s)
- Yuichi Oba
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan
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Biosynthesis of luciferin in the sea firefly, Cypridina hilgendorfii: l-tryptophan is a component in Cypridina luciferin. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00257-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Haddock SH, Rivers TJ, Robison BH. Can coelenterates make coelenterazine? Dietary requirement for luciferin in cnidarian bioluminescence. Proc Natl Acad Sci U S A 2001; 98:11148-51. [PMID: 11572972 PMCID: PMC58698 DOI: 10.1073/pnas.201329798] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In the calcium-activated photoprotein aequorin, light is produced by the oxidation of coelenterazine, the luciferin used by at least seven marine phyla. However, despite extensive research on photoproteins, there has been no evidence to indicate the origin of coelenterazine within the phylum Cnidaria. Here we report that the hydromedusa Aequorea victoria is unable to produce its own coelenterazine and is dependent on a dietary supply of this luciferin for bioluminescence. Although they contain functional apophotoproteins, medusae reared on a luciferin-free diet are unable to produce light unless provided with coelenterazine from an external source. This evidence regarding the origins of luciferin in Cnidaria has implications for the evolution of bioluminescence and for the extensive use of coelenterazine among marine organisms.
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Affiliation(s)
- S H Haddock
- Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA.
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Photophores: the analysis of bioluminescent systems. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/b978-0-444-82033-4.50025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Dove S, Horwitz J, McFall-Ngai M. A biochemical characterization of the photophore lenses of the midshipman fish, Porichthys notatus Girard. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 1993; 172:565-72. [PMID: 8331605 DOI: 10.1007/bf00213679] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The present study is a biochemical characterization of the photophore lenses of the midshipman fish, Porichthys notatus, a species that bears 800 photophores distributed over the body surface. The biochemical properties of the photophore lenses were compared with those of the eye lens with which they share a similar developmental origin and analogous function. To achieve a high refractive index, the vertebrate eye lens has a relatively high concentration of structural proteins (20-50%, depending on species) and a simple protein composition, that is, relatively few proteins are synthesized in comparison to other tissues. Similarly, the photophore lenses of P. notatus had a relatively high protein concentration (average = 29%, n = 5) and approximately 60% of the total soluble protein was represented by two subunit species of 33 kD and 35 kD on denaturing polyacrylamide gels. The structural proteins of the eye lens are of two principle types: 1) beta and gamma polypeptides which belong to vertebrate lens-specific crystallin families, and, 2) enzymes recruited into the lens which take on the function of structural proteins. Here, we report that the two major photophore lens subunits of 33 kD and 35 kD are biochemically similar to each other, but are clearly distinct from any of the previously characterized crystallins. Therefore, we propose that photophore lenses appear to recruit a novel protein.
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Affiliation(s)
- S Dove
- Department of Biological Sciences, University of Southern California, Los Angeles 90089-0371
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Thompson EM, Nafpaktitis BG, Tsuji FI. Dietary uptake and blood transport of Vargula (crustacean) luciferin in the bioluminescent fish, Porichthys notatus. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/0300-9629(88)91079-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Thompson EM, Nafpaktitis BG, Tsuji FI. INDUCTION OF BIOLUMINESCENCE IN THE MARINE FISH, Porichthys, BY Vargula (CRUSTACEAN) LUCIFERIN. EVIDENCE FOR de novo SYNTHESIS OR RECYCLING OF LUCIFERIN. Photochem Photobiol 1987. [DOI: 10.1111/j.1751-1097.1987.tb05413.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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LaRivière L, Anctil M. Uptake and release of [3H]-serotonin in photophores of the midshipman fish, Porichthys notatus. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. C, COMPARATIVE PHARMACOLOGY AND TOXICOLOGY 1984; 78:231-9. [PMID: 6146476 DOI: 10.1016/0742-8413(84)90075-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A kinetic analysis of [3H]-5-HT uptake in the photocytes of the photophores of Porichthys notatus revealed a high affinity (Km: 1.71 X 10(-7] and low affinity component (Km: 1.10 X 10(-5) M). The high affinity uptake was sodium- and potassium-dependent but largely insensitive to temperatures between 0 and 20 C. Ouabain (5 X 10(-3) M) and dinitrophenol (10(-3) M) reduced uptake significantly. DMI, imipramine and fluoxetine, in that order of potency, greatly inhibited [3H]-5-HT uptake. Noradrenaline and adrenaline reduced uptake in a non-competitive manner, while dopamine, tryptophan, 5-hydroxytryptophan and Cypridina luciferin had little or not effect on uptake. Non-facilitated luminescent responses to electrical stimulation were accompanied by release of [3H]-5-HT accumulated in the photocytes. Facilitatory luminescence excitation consistently failed to induce the release of [3H]-5-HT. Electrical and adrenaline (10(-5) M) stimulation of photophores after [3H]-5-HT release has occurred, failed to elicit any additional luminescent response. The photophores were responsive to KCN (10(-3) M) under these conditions. The results indicate that a specific carrier-mediated transport system is responsible for photocytic [3H]-5-HT uptake, and that release of photocytic [3H]-5-HT is stringently regulated and followed by inhibition of luminescence excitability.
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Hastings JW. Biological diversity, chemical mechanisms, and the evolutionary origins of bioluminescent systems. J Mol Evol 1983; 19:309-21. [PMID: 6358519 DOI: 10.1007/bf02101634] [Citation(s) in RCA: 197] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A diversity of organisms are endowed with the ability to emit light, and to display and control it in a variety of ways. Most of the luciferins (substrates) of the various phylogenetically distant systems fall into unrelated chemical classes, and, based on still limited data, the luciferases (enzymes) and reaction mechanisms are distinctly different. Based on its diversity and phylogenetic distribution, it is estimated that bioluminescence may have arisen independently as many as 30 times in the course of evolution. However, there are several examples of cross-phyletic similarities among the substrates; some of these may be accounted for nutritionally, but in other cases they may have evolved independently.
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Intracellular Source of Bioluminescence. ACTA ACUST UNITED AC 1980. [DOI: 10.1016/s0074-7696(08)62310-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Henry JP, Michelson AM. Bioluminescence: physiological control and regulation at the molecular level. Photochem Photobiol 1978; 28:293-310. [PMID: 43986 DOI: 10.1111/j.1751-1097.1978.tb07711.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Anctil M. Development of bioluminescence and photophores in the midshipman fish, Porichthys notatus. J Morphol 1977; 151:363-95. [PMID: 845970 DOI: 10.1002/jmor.1051510305] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Correlative studies of luminescent responses, light and electron microscopy of Porichthys photophores during development were conducted. The photophores differentiate as an outgrowth of the basal cell layer of the epidermis, from which they delaminate into the dermis. Reflector cells are formed from dermal fibroblasts. Early photophore cells differentiate into three distinct cell types: photocytes, supportive and lens cells. Elaborate profiles of endoplasmic reticulum, Golgi bodies and vesicles suggest intense secretory activity in the early photocytes, while supportive and lens cells differentiate by two different transformations of the microfilament arrangement of primordial photophore cells. Luminescent capabilities of Porichthys photophores arise in two successive phases: (1) an aneural phase during which photophores become fluorescent, photocytes are in process of maturation and respond only to chemical stimulation and (2) a neural phase in which photophores luminesce upon electrical and pharmacological stimulation and are densely innervated with terminals showing relatively narrow neurophotocyte gaps. The presence of neural elements intimately associated with the early photophore anlagen suggests the involvement of the peripheral nervous system in the formation of photophores.
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Tsuji FI, Nafpaktitis BG, Goto T, Cormier MJ, Wampler JE, Anderson JM. Spectral characteristics of the bioluminescence induced in the marine fish, Porichthys notatus by Cypridina (ostracod) luciferin. Mol Cell Biochem 1975; 9:3-8. [PMID: 1186662 DOI: 10.1007/bf01731727] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Specimens of Porichthys notatus, which are naturally luminous along the coast of California, are non-luminous in Puget Sound. However, luminescence capability may be induced in the adult Puget Sound Porichthys by the administration of purified Cypridina (ostracod) luciferin, synthetic Cypridina luciferin, or Cypridina organisms. The bioluminescence emission spectra produced by the Puget Sound fish following induction is similar, if not identical, to that of the naturally luminous Porichthys notatus from California waters (maxima: 485 and 507 nm).
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Barnes AT, Case JF, Tsuji FI. Induction of bioluminescence in a luciferin deficient form of the marine teleost, Porichthys, in response to exogenous luciferin. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. A, COMPARATIVE PHYSIOLOGY 1973; 46:709-23. [PMID: 4148164 DOI: 10.1016/0300-9629(73)90123-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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