Results 111 to 120 of about 336 (124)
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Journal of Applied Phycology, 2002
This study reports further information on “mareninne,” awater-soluble blue-green pigment synthesized by the diatom Hasleaostrearia, which is essential to the greening of maturing oysters inFrench production areas. The extraction process is reported, as well aspreliminary characterization of a partially purified marennine extract,including quantitative ...
Jean-Michel Robert +4 more
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This study reports further information on “mareninne,” awater-soluble blue-green pigment synthesized by the diatom Hasleaostrearia, which is essential to the greening of maturing oysters inFrench production areas. The extraction process is reported, as well aspreliminary characterization of a partially purified marennine extract,including quantitative ...
Jean-Michel Robert +4 more
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Diatom Research, 1995
Isolates of Haslea ostrearia containing different amounts of marennine have been investigated to elucidate the physiological role of this enigmatic blue pigment. Fluorescence analyses at room temperature and 77K showed that marennine is not involved in light-harvesting for either PS II or PS I. On the other hand, a light-shielding function of marennine
Hendrik Schubert +4 more
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Isolates of Haslea ostrearia containing different amounts of marennine have been investigated to elucidate the physiological role of this enigmatic blue pigment. Fluorescence analyses at room temperature and 77K showed that marennine is not involved in light-harvesting for either PS II or PS I. On the other hand, a light-shielding function of marennine
Hendrik Schubert +4 more
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Moscow University Biological Sciences Bulletin
Marennine and marennine-like pigments produced by certain diatom species of the genus Haslea are unique water-soluble compounds with several valuable properties. The exact chemical structure of these pigments has not been fully elucidated, but data on the physical and chemical characteristics of marennines have been obtained primarily for H. ostrearia.
N. A. Davidovich, E. S. Kirienko
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Marennine and marennine-like pigments produced by certain diatom species of the genus Haslea are unique water-soluble compounds with several valuable properties. The exact chemical structure of these pigments has not been fully elucidated, but data on the physical and chemical characteristics of marennines have been obtained primarily for H. ostrearia.
N. A. Davidovich, E. S. Kirienko
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Absorptio Spectrumin vivoof the Blue Pigment ‘Marennine’ of the Pennate DiatomNavicula ostreariaBory
Journal of Experimental Botany, 1981Biological and environmental conditions affect the intracellular contents of the diatom Navicula ostrearia Bory. Thus this alga has the peculiarity of synthesizing marennine, a blue-green pigment of an undefined chemical nature. The present study deals with a cytophotometric method permitting identification of the pigment in vivo, by its characteristic
M. J. ROBERT, J. N. HALLET
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Applied Microbiology and Biotechnology, 2002
In oyster ponds, the marine diatom Haslea ostrearia synthesises and excretes a hydrosoluble pigment of commercial interest called marennin. During the benthic stage, when algal cells are naturally immobilised in their own polysaccharides, marennin production is higher. To optimise this production, axenic cultures of H.
T, Lebeau +3 more
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In oyster ponds, the marine diatom Haslea ostrearia synthesises and excretes a hydrosoluble pigment of commercial interest called marennin. During the benthic stage, when algal cells are naturally immobilised in their own polysaccharides, marennin production is higher. To optimise this production, axenic cultures of H.
T, Lebeau +3 more
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Aquaculture, 2017
Abstract Haslea ostrearia is a marine diatom that synthesizes and releases marennine, a water-soluble blue-green pigment responsible for the greening of the gills and labial palps of bivalves. The present study evaluated the effect of different marennine concentrations (0, 0.5, 1.0 and 2.0 mg l− 1) on the behavior (valve opening), physiology ...
Fiddy S. Prasetiya +8 more
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Abstract Haslea ostrearia is a marine diatom that synthesizes and releases marennine, a water-soluble blue-green pigment responsible for the greening of the gills and labial palps of bivalves. The present study evaluated the effect of different marennine concentrations (0, 0.5, 1.0 and 2.0 mg l− 1) on the behavior (valve opening), physiology ...
Fiddy S. Prasetiya +8 more
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Phycological Research, 2013
SummaryDiatoms are one of the largest groups of primary producers in the oceans, yet despite their environmental importance little is known about their plastidial lipid biochemistry. It has been previously reported that Skeletonema species contain primarily C16/C16 and C20/C16 forms of mono‐ and digalactosyldiacylglycerol (MGDG and DGDG, respectively).
V. Joshua Dodson +3 more
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SummaryDiatoms are one of the largest groups of primary producers in the oceans, yet despite their environmental importance little is known about their plastidial lipid biochemistry. It has been previously reported that Skeletonema species contain primarily C16/C16 and C20/C16 forms of mono‐ and digalactosyldiacylglycerol (MGDG and DGDG, respectively).
V. Joshua Dodson +3 more
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2018
In bivalve hatcheries, opportunistic pathogens have been associated with important mass mortality events of larvae and important economic lost for producers. New alternatives to the use of antibiotics, such as probiotics, have been proposed to limit the occurrence of such events in bivalve hatcheries and to stabilize bivalve production.
Latour, Jordan +4 more
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In bivalve hatcheries, opportunistic pathogens have been associated with important mass mortality events of larvae and important economic lost for producers. New alternatives to the use of antibiotics, such as probiotics, have been proposed to limit the occurrence of such events in bivalve hatcheries and to stabilize bivalve production.
Latour, Jordan +4 more
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Journal of Applied Phycology, 2000
Two prominent diatoms encountered in oyster-ponds,Haslea ostrearia and Skeletonema costatum,were grown in batch and in a semi-continuous modeunder light of different spectral quality, white, blueor blue-green. The last corresponded to white lightmodified by a water-soluble pigment, marennine,produced by H. ostrearia.
Gérard Tremblin +4 more
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Two prominent diatoms encountered in oyster-ponds,Haslea ostrearia and Skeletonema costatum,were grown in batch and in a semi-continuous modeunder light of different spectral quality, white, blueor blue-green. The last corresponded to white lightmodified by a water-soluble pigment, marennine,produced by H. ostrearia.
Gérard Tremblin +4 more
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Journal of Applied Phycology, 2006
This paper describes a new approach for quantifying marennine, a blue-green pigment synthesized by the marine diatom Haslea ostrearia, which is known to be responsible for the greening of cultured oysters in French coastal areas. The method uses gel-filtration HPLC interfaced with a photodiode-array detector (PDA).
Pouvreau, Jean-Bernard +3 more
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This paper describes a new approach for quantifying marennine, a blue-green pigment synthesized by the marine diatom Haslea ostrearia, which is known to be responsible for the greening of cultured oysters in French coastal areas. The method uses gel-filtration HPLC interfaced with a photodiode-array detector (PDA).
Pouvreau, Jean-Bernard +3 more
openaire +2 more sources