Results 111 to 120 of about 499 (141)
Enhancement of marennine production by blue light in the diatom Haslea ostrearia
Journal of Applied Phycology, 2005 The marine diatom Haslea ostrearia Simonsen produces a blue pigment, marennine, which is used for greening oysters. This microalga is cultured industrially indoors with artificial light. The influence of light quality on marennine production by cultures of H. ostrearia was investigated in the laboratory and at a semi-pilot scale (300 L tanks).
J. Mouget +3 more
semanticscholar +3 more sources
Journal of Applied Phycology, 1998 The diatom Haslea ostrearia that lives in oyster ponds has the distinctive feature of synthesizing “marennine”, a blue-green pigment of which the chemical nature still remains unknown. This pigment is responsible for the greening of oyster gills. Here, we report a new method for extraction and purification of intracellular (accumulated in the apex of ...
Y. Nassiri +3 more
semanticscholar +6 more sources
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 ...
J. Robert +4 more
semanticscholar +3 more sources
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 ...
F. Prasetiya +8 more
semanticscholar +3 more sources
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
H. Schubert +4 more
semanticscholar +3 more sources
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. Dodson +3 more
semanticscholar +3 more sources
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.
G. Tremblin +4 more
semanticscholar +3 more sources
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Algal Research, 2023
International audience ; Marennine is a high-value compound produced by the benthic diatom Haslea ostrearia, which could be used as an alternative to synthetic antibiotics in aquaculture. Over the last few years, however, low production rates have been impeding its exploitation. Recent progress on H.
Elodie Pedron +6 more
semanticscholar +3 more sources
International audience ; Marennine is a high-value compound produced by the benthic diatom Haslea ostrearia, which could be used as an alternative to synthetic antibiotics in aquaculture. Over the last few years, however, low production rates have been impeding its exploitation. Recent progress on H.
Elodie Pedron +6 more
semanticscholar +3 more sources