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  • 1
    Electronic Resource
    Electronic Resource
    Organic material from scleractinian coral skeletons-II. Incorporation of ^1^4C into protein, chitin and lipid
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part B: Biochemistry and 40 (1971), S. 945-958 
    Details
    ISSN: 0305-0491
    Keywords: Na"2^1^4CO"3 ; Pocillopara damicornis ; Scleractinia ; algal symbiosis ; amino acids ; cetyl palmitate ; glucosamine ; glycerol ; serine ; skeletal chitin ; skeletal lipid ; skeletal protein ; zooxanthellae
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-0491(71)90040-X
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  • 2
    Electronic Resource
    Electronic Resource
    Repopulation of a sea anemone with symbiotic dinoflagellates: Analysis by in vivo fluorescence
    Amsterdam : Elsevier
    Journal of Experimental Marine Biology and Ecology 170 (1993), S. 145-158 
    Details
    ISSN: 0022-0981
    Keywords: Aiptasia ; Fluorescence ; Repopulation ; Symbiosis ; Zooxanthellae
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-0981(93)90149-I
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  • 3
    Electronic Resource
    Electronic Resource
    Valine activation of feeding in the sea anemone Boloceroides
    Amsterdam : Elsevier
    Comparative Biochemistry And Physiology 26 (1968), S. 567-572 
    Details
    ISSN: 0010-406X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0010-406X(68)90650-6
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  • 4
    Electronic Resource
    Electronic Resource
    Daily photosynthesis, respiration, and carbon budgets in a tropical marine jellyfish (Mastigias sp.) (1994)
    Springer
    Marine biology 119 (1994), S. 13-22 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract From measured diel photosynthesis and respiration rates, using oxygen electrodes, estimates of carbon flux between symbiotic algae (zooxanthellae) and host animal are presented for the marine scyphomedusan Mastigias sp. from a marine lake in Palau, Western Caroline Islands, during February and March 1982. The carbon budgets calculated for these lake medusae indicate that carbon fixed photosynthetically by zooxanthellae and made available to the host may satisfy up to 100% of the host's daily metabolic carbon demand (CZAR). The stable carbon isotope (δ13C) signature of the mesogleal carbon of lake Mastigias sp. was close to that of the zooxanthellae, supporting the interpretation that while these medusae may feed holozoically, some of their carbon comes from their symbionts. The diel photosynthesis, respiration, and preliminary estimates of carbon budgets of three individuals of another ecotype of Mastigias sp. collected from nearby oceanic lagoons are also given. Photosynthesis of lagoon medusae was generally greater than that for lake medusae of similar size, and lagoon medusae were phototrophic with respect to carbon, with commensurately greater CZAR values. Carbon translocated from the symbiotic algae also may contribute to the growth requirements of both lake and lagoon medusae. From carbon flux data, the lake jellyfish were estimated to contribute about 16% to the total primary productivity of their marine lake habitat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00350101
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  • 5
    Electronic Resource
    Electronic Resource
    Cell cycle of symbiotic dinoflagellates: variation in G1 phase-duration with anemone nutritional status and macronutrient supply in the Aiptasia pulchella–Symbiodinium pulchrorum symbiosis (1999)
    Springer
    Marine biology 134 (1999), S. 405-418 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The metabolite exchange in alga–invertebrate symbioses has been the subject of extensive research. A central question is how the biomass of the algal endosymbionts is maintained within defined limits under a given set of environmental conditions despite their tremendous growth potential. Whether algal growth is actively regulated by the animal cells is still an open question. We experimentally evaluated the effect of inorganic nutrient supply and host-animal nutritional status on the biomass composition, growth and cell-cycle kinetics of the endosymbiotic dinoflagellate Symbiodinium pulchrorum (Trench) in the sea anemone Aiptasia pulchella. Dinoflagellates in anemones starved for 14 d exhibited lower growth rates, chlorophyll content and higher C:N ratios than in anemones fed Artemia sp. (San Francisco brand #65034) nauplii every 2 d, indicating N-limitation of the algae during starvation of the host animal. Manipulation of the dissolved inorganic nutrient supply through ammonium and phosphate additions induced a rapid recovery (half time, t ½∼ 2 d) in the C:N ratio of the dinoflagellate cells to levels characteristic of N-sufficient cells. The mitotic index and population growth rate of the dinoflagellate symbionts subjected to this enrichment did not recover to the levels exhibited in fed associations. Flow cytometric analysis of dinoflagellate cell size and DNA content revealed that the duration of the G1 phase (first peak of DNA content: 70 to 100 relative fluorescence units, rfu) of their cell cycle lengthened dramatically in the symbiotic state, and that the majority of algal biomass increase occurred during this phase. Covariate analysis of dinoflagellate cell size and DNA-content distributions indicated that the symbiotic state is associated with a nutrient-independent constraint on cell progression from G1 through the S phase (intermediate DNA content: 101 to 139 rfu). This analysis suggests that the host-cell environment may set the upper limit on the rate of dinoflagellate cell-cycle progression and thereby coordinate the relative growth rates of the autotrophic and heterotrophic partners in this symbiotic association.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002270050557
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  • 6
    Electronic Resource
    Electronic Resource
    Some factors influencing selective release of soluble organic material by zooxanthellae from reef corals (1972)
    Springer
    Marine biology 13 (1972), S. 298-308 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Studies were carried out to determine optimum conditions for the investigation of symbiotic zooxanthellae in vitro and to gain insight into factors influencing release of photosynthate by the symbionts. Zooxanthellae isolated from the reef coral Agaricia agaricites and incubated with an homogenate of host tissue release twice as much photosynthate as controls in seawater. The animal homogenate retained its stimulatory activity for 3 h at room temperature (ca. 26°C). Release of photosynthate was markedly influenced by time after isolation of algae from the host, variation in homogenate concentration, and prolonged exposure to homogenate. Release was not influenced by cell concentration, light intensity, or glycerol in the incubation medium. If zooxanthellae are labelled in vitro with glucose 14C, the principle product released is alanine 14C. The mechanism of action of homogenate on zooxanthellae in vitro is discussed in terms of its effect on algal cell membrane permeability. A preliminary fractionation of host homogenate is described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348077
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  • 7
    Electronic Resource
    Electronic Resource
    The effect of inhibitors of photosynthesis on zooxanthellae in corals and other marine invertebrates (1972)
    Springer
    Marine biology 16 (1972), S. 185-191 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effect of the selective photosynthesis inhibitors Monuron (CMU), Diuron (DCMU) and methyl viologen on intact algal-marine invertebrate symbiotic associations was studied. CMU or DCMU (5x10-4M) completely inhibited photosynthesis, both in intact branches, and in suspensions of isolated zooxanthellae from the reef-building coral Pocillopora damicornis. The inhibitory effect was totally reversible in 1 to 3 h after removal of the inhibitor. Similar inhibition of photosynthesis occurred in 8 other marine coelenterates symbiotic with zooxanthellae, and in 1 marine gastropod symbiotic with functional chloroplasts. Neither CMU nor DCMU appeared to affect behavior of the various hosts, such as swimming, phototaxis, phototropism, photoreception, tentacle contraction, ciliary beating and locomotion. Methyl viologen, however, was ineffective in inhibiting photosynthesis in intact P. damicornis at low concentrations, and lethal to the tissues at high concentrations. These observations indicate that CMU and DCMU are potential useful tools for investigation of symbiotic associations. DCMU (5x10-4M) also reversibly inhibited light-enhanced calcification in P. damicornis. This strongly suggests that light-enhanced calcification is largely photosynthesis dependent, and probably not dependent on some other photobiological effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00346940
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  • 8
    Electronic Resource
    Electronic Resource
    Utilization of photosynthetic products of symbiotic chloroplasts in mucus synthesis by Placobranchus ianthobapsus (gould), opisthobranchia, sacoglossa
    Amsterdam : Elsevier
    Comparative Biochemistry And Physiology 37 (1970), S. 113-117 
    Details
    ISSN: 0010-406X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0010-406X(70)90964-3
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  • 9
    Electronic Resource
    Electronic Resource
    Soluble extracellular products of algae symbiotic with a ciliate, a sponge and a mutant hydra
    Amsterdam : Elsevier
    Comparative Biochemistry And Physiology 20 (1967), S. 1-6+IN1-IN4+7-12 
    Details
    ISSN: 0010-406X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0010-406X(67)90720-7
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  • 10
    Electronic Resource
    Electronic Resource
    Symbiosis of hydra and algae-III. Extracellular products of the algae
    Amsterdam : Elsevier
    Comparative Biochemistry And Physiology 16 (1965), S. 77-84+IN7-IN8+85-92 
    Details
    ISSN: 0010-406X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0010-406X(65)90165-9
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