Results 21 to 30 of about 656 (162)

The cell cycle of phytoplankton: A review

open access: yesJournal of the World Aquaculture Society, Volume 53, Issue 4, Page 799-815, August 2022., 2022
Abstract Phytoplankton play an enormously important role in ecology and serve as critical food for aquatic organisms. The phytoplankton population rapidly increases in number after continuous cell cycles. Thus, understanding the cell cycle of phytoplankton is fundamental to the aquatic ecosystem research.
Peng‐Zhen Zhao   +3 more
wiley   +1 more source

Bacterial community structure of the marine diatom Haslea ostrearia [PDF]

open access: yesAlgal Research, 2016
The marine diatom Haslea ostrearia produces a water-soluble blue-pigment named marennine of economic interest (e.g. in aquaculture for the greening of oysters). Up to date the studies devoted to ecological conditions under which this microalga develops never took into account the bacterial-H. ostrearia relationships.
Lepinay, Alexandra   +5 more
openaire   +6 more sources

Bioactive substances and potentiality of marine microalgae

open access: yesFood Science &Nutrition, Volume 9, Issue 9, Page 5279-5292, September 2021., 2021
The manuscript has reviewed the research progress of main bioactive components in microalgae, proteins, lipids, polysaccharides, pigments, and other nutrients, as well as their potential application in industrial production. Simultaneously, this review has briefly demonstrated that microalgae have huge advantages in regulating the body health and ...
Jinhong Wu   +6 more
wiley   +1 more source

Effect of the blue pigment produced by the tropical diatom Haslea nusantara on marine organisms from different trophic levels and its bioactivity

open access: yesAquaculture Reports, 2020
Marennine is the blue-green pigment produced by the temperate ubiquiste marine diatom Haslea ostrearia. This pigment is water-soluble and excreted in seawater during H. ostrearia growth and ageing.
Fiddy S. Prasetiya   +8 more
doaj   +1 more source

Heterothallism in the pennate diatomHaslea ostrearia(Bacillariophyta) [PDF]

open access: yesEuropean Journal of Phycology, 2009
Twelve clonal cultures of the marine pennate diatom Haslea ostrearia (Gaillon) Simonsen were used to study sexual reproduction and auxosporulation. After crossing, compatible gametangia paired girdle to girdle, with no visible surrounding mucilage. Two gametes were formed per gametangium; these were not attached to the thecae of the parental frustule ...
Nickolai A. Davidovich   +2 more
openaire   +1 more source

Antibacterial Activity of Haslea ostrearia Supernatant Adapted in Indonesia against Pathogenic Bacteria Relevant to Mariculture (In-Vitro Study)

open access: yesOmni-Akuatika, 2019
Haslea ostrearia has known as the only diatom which synthesizes a water-soluble blue pigment, marennine. It has some biological activities such as allelopathy, antioxidant, antibacterial, antiviral, and growth inhibitor.
Ikfa Permatasari   +4 more
doaj   +1 more source

Growth and metal uptake of microalgae produced using salt groundwaters from the Bay of Bourgneuf [PDF]

open access: yes, 2006
International audienceThe Bay of Bourgneuf, France, is a main site of shellfish production. In the marshes along the bay, oyster intensive rearing and fattening need the mass production of microalgae.
Bustamante, Paco   +3 more
core   +3 more sources

Submerged membrane photobioreactor for the cultivation of Haslea ostrearia and the continuous extraction of extracellular marennine

open access: yesBioresource Technology, 2022
Haslea ostrearia is a marine diatom known to produce and excrete the marenine blue pigment. Its controlled, continuous and intensified cultivation remains a challenge. Thus, a submerged membrane photobioreactor (MPBR) was implemented in order to simultaneously and continuously cultivate H. ostrearia and extract marennine.
Gargouch, Nesrine   +5 more
openaire   +4 more sources

Blue Diatoms: Global Phenomenon of ˝Greening˝ in Shellfish and Record of Planktonic Haslea Species in the South Adriatic Sea [PDF]

open access: yes, 2017
Diatoms are unicellular, photoautotrophic eukaryotic microorganisms, often forming colonies and can be found in most aquatic and moist terrestrial habitats. All known diatoms today have specific golden-brown pigment fucoxanthin that masks chlorophylls in
Maja Mejdandžić   +2 more
core   +3 more sources

Design of an artificial culture medium to optimize Haslea ostrearia biomass and marennine production [PDF]

open access: yesAlgal Research, 2020
The diatom Haslea ostrearia was first studied by Gaillon in the year 1820 because of the greening phenomenon of oysters in western France. This microalga has the capacity to produce and excrete a blue pigment, called marennine, that has antioxidant, anti-bacterial and anti-viral properties, with possible industrial applications related to aquaculture ...
Nghiem Xuan, R.   +5 more
openaire   +2 more sources

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