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Journal articles on the topic 'Marine algae culture'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 July 2024

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1

Luxem, Katja E., Bas Vriens, Renata Behra, and Lenny H. E. Winkel. "Studying selenium and sulfur volatilisation by marine algae Emiliania huxleyi and Thalassiosira oceanica in culture." Environmental Chemistry 14, no. 4 (2017): 199. http://dx.doi.org/10.1071/en16184.

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Environmental contextVolatile selenium compounds from the oceans may ultimately be an important selenium source for agricultural soils. It has been hypothesised that marine algae are responsible for volatile selenium emissions, but in laboratory experiments, we observed minimal volatile selenium production by two marine algae known to produce large amounts of volatile sulfur. Instead, we found hints that bacterial processes may be important in the production of volatile selenium in the oceans. AbstractVolatile methylated selenium compounds, especially dimethylselenide, are thought to comprise

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SAGA, Naotsune. "Tissue culture of marine algae." Plant tissue culture letters 6, no. 2 (1989): 55–62. http://dx.doi.org/10.5511/plantbiotechnology1984.6.55.

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Maliki, Intan Mariana, Mailin Misson, Peik Lin Teoh, Kenneth Francis Rodrigues, and Wilson Thau Lym Yong. "Production of Lectins from Marine Algae: Current Status, Challenges, and Opportunities for Non-Destructive Extraction." Marine Drugs 20, no. 2 (2022): 102. http://dx.doi.org/10.3390/md20020102.

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Marine algae are an excellent source of novel lectins. The isolation of lectins from marine algae expands the diversity in structure and carbohydrate specificities of lectins isolated from other sources. Marine algal lectins have been reported to have antiviral, antitumor, and antibacterial activity. Lectins are typically isolated from marine algae by grinding the algal tissue with liquid nitrogen and extracting with buffer and alcohol. While this method produces higher yields, it may not be sustainable for large-scale production, because a large amount of biomass is required to produce a minu

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IWATA, Y., and M. SUZUKI. "PIXE APPLICATION FOR MEASUREMENT OF BIOACCUMULATION OF LEAD BY MARINE MICRO-ALGAE." International Journal of PIXE 10, no. 01n02 (2000): 27–35. http://dx.doi.org/10.1142/s0129083500000055.

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Marine micro-algae (Nannochloropsis sp., and Phaeodactylum sp.,) were obtained from the Pacific Ocean of Iwate Pref., Japan and purely cultured in nutritive seawater as a culture solution. The culture size for algae was 10 - 250 ml and every apparatus was small and of low cost. Marine micro-algae were given in different culture solutions including Pb 2+ from 0.01 to 1.0 mg /l. The algae in 5 ml of the culture solution were collected on a polycarbonate filter (pore size : 1.0 μm) by suction filtration. The algae on the filter were subjected to PIXE analysis. Concentrations of Na , Mg , Si , P ,

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Fisher, Carolyn L., Pamela D. Lane, Marion Russell, Randy Maddalena, and Todd W. Lane. "Low Molecular Weight Volatile Organic Compounds Indicate Grazing by the Marine Rotifer Brachionus plicatilis on the Microalgae Microchloropsis salina." Metabolites 10, no. 9 (2020): 361. http://dx.doi.org/10.3390/metabo10090361.

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Microalgae produce specific chemicals indicative of stress and/or death. The aim of this study was to perform non-destructive monitoring of algal culture systems, in the presence and absence of grazers, to identify potential biomarkers of incipient pond crashes. Here, we report ten volatile organic compounds (VOCs) that are robustly generated by the marine alga, Microchloropsis salina, in the presence and/or absence of the marine grazer, Brachionus plicatilis. We cultured M. salina with and without B. plicatilis and collected in situ volatile headspace samples using thermal desorption tubes ov

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Ulrich, Johann F., Melina S. Gräfe, Seema Dhiman, Paul Wienecke, Hans-Dieter Arndt, and Thomas Wichard. "Thallusin Quantification in Marine Bacteria and Algae Cultures." Marine Drugs 20, no. 11 (2022): 690. http://dx.doi.org/10.3390/md20110690.

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Thallusin, a highly biologically active, phytohormone-like and bacterial compound-inducing morphogenesis of the green tide-forming macroalga Ulva (Chlorophyta), was determined in bacteria and algae cultures. A sensitive and selective method was developed for quantification based on ultra-high-performance liquid chromatography coupled with electrospray ionization and a high-resolution mass spectrometer. Upon C18 solid phase extraction of the water samples, thallusin was derivatized with iodomethane to inhibit the formation of Fe–thallusin complexes interfering with the chromatographic separatio

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Hadijah, Hadijah, Mardiana Mardiana, Erni Indrawati, Sutia Budi, and Zainuddin Zainuddin. "The use of artificial feed in Haliotis squamata farming in submerged cage culture system at Lae-Lae island, Makassar." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 16, no. 4 (2021): 1. http://dx.doi.org/10.4136/ambi-agua.2719.

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This study investigated the use of a combined formula of artificial feed and fresh marine algae Gracilaria sp in a submerged cage culture system and its effect on Haliotis squamata relative growth and survival rates. The experiment was performed in Lae-Lae Island, Makassar from May to October 2016. The sample Abalone juvenile larvae were 1.5 cm in size and stocked at a density of 30 pcs/cage. The cage size was 30 cm x 15 cm x 7 cm and equipped with a 2-inch Paralone pipe. This experiment employed a completely random design (CRD) with 3 treatments and 3 replicates. The applied treatment include

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Min, Juhee, and Kwang Young Kim. "Quantification of the ichthyotoxic raphidophyte Chattonella marina complex by applying a droplet digital PCR." Algae 37, no. 4 (2022): 281–91. http://dx.doi.org/10.4490/algae.2022.37.11.30.

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Quantifying the abundance of Chattonella species is necessary to effectively manage the threats from ichthyotoxic raphidophytes, which can cause large-scale mortality of aquacultured fish in temperate waters. The identification and cell counting of Chattonella species have been conducted primarily on living cells without fixation by light microscopy because routine fixatives do not retain their morphological features. Species belonging to the Chattonella marina complex, including C. marina and C. marina var. ovata, had high genetic similarities and the lack of clear morphological delimitations

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Youn, Joo-Yeon, and Sung-Bum Hur. "Antibiotics and Their Optimum Concentration for Axenic Culture of Marine Microalgae." ALGAE 22, no. 3 (2007): 229–34. http://dx.doi.org/10.4490/algae.2007.22.3.229.

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10

Polyakova, S. L., O. I. Davidovich, Yu A. Podunay, and N. A. Davidovich. "Modification of the ESAW culture medium used for cultivation of marine diatoms." Marine Biological Journal 3, no. 2 (2018): 73–80. http://dx.doi.org/10.21072/mbj.2018.03.2.06.

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Experiments with clonal cultures of four pennate diatoms Haslea karadagensis, H. ostrearia, Pleurosigma sp. and Pseudo-nitzschia cf. seriata revealed that adding of sodium thiosulfate to the culture medium resulted in increase of algae growth rate. The highest, approximately two-fold, increase of the growth rate was observed in Pseudo-nitzschia cf. seriata, a member of the genus including toxicogenous species. Dependence of the algae growth rate on concentration of sodium thiosulfate was studied; optimal concentrations providing the highest growth rate were determined. Addition of ferrous-ammo

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Hur, Sung Bum, Jean Hee Bae, Joo-Yeon Youn, and Min Jin Jo. "KMMCC-Korea Marine Microalgae Culture Center: list of strains, 2nd edition." ALGAE 30, sup (2015): 1–188. http://dx.doi.org/10.4490/algae.2015.30.s.s1.

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Marin, Oana Alina, Valentina Coatu, and Elena Stoica. "Neutral Spores—An Easier Way to Cultivate Pyropia leucosticta (Thuret) Neefus & J.Brodie, 2011 (Bangiales, Rhodophyta) along the Romanian Black Sea Shore." Phycology 3, no. 1 (2023): 13–24. http://dx.doi.org/10.3390/phycology3010002.

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Macroalgal cultures are currently of great interest worldwide. Although along the Romanian Black Sea coast, there is no tradition in this sense, currently, a major interest in developing this direction exists, taking into consideration that the overexploitation of wild seaweed resources involves the disturbance of the marine environment, with implications that can sometimes be irreversible. Porphyra and Pyropia species (also known as nori algae) are considered the world’s most valuable mariculture algal products due to their high nutritional value and multiple active principles, considered uni

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Lee, Ju-Il, Hyun-Kyum Kim, Kyung-Hoi Kim, and Chang Geun Choi. "A study on indoor culture of marine algae using plant growth promoters." Korean Ecological Engineering Society 8, no. 1 (2021): 31–38. http://dx.doi.org/10.33214/kees.2021.8.1.31.

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This study was conducted to understand the effect of biostimulants on the growth of marine algae. The biostimulants used in the experiment were fulvic acid, DS and TH products, and Ulva australis and Pterocladiella capillacea were used as experimental materials. The concentrations of the biostimulants used in the experiment were 0.1, 1.0 and 10%, and the water temperature was 20.5℃and cultured under 12:12 LD conditions. The U. australis cultured with fulvic acid to grew at 1.0% at 5.48mm after 1 week, 6.55 mm after 2 weeks, 7.03 mm after 3 weeks, and 8.29 mm after 5 weeks. P. capillacea grew a

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Nielsen, R., and J. McLachlan. "Investigations of the marine algae of Nova Scotia. XVI. The occurrence of small green algae." Canadian Journal of Botany 64, no. 4 (1986): 808–14. http://dx.doi.org/10.1139/b86-105.

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Collections were made from various sites in Nova Scotia and Prince Edward Island for small green benthic marine algae, filamentous species associated with other plants, animals, wood, shells, or stones. Identifications were based on observations in situ and material isolated into culture. Twenty species, distributed in 14 genera, were identified; six are new records for eastern Canada and a seventh species is a new record for the Maritime provinces.

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15

Brzychczyk, Beata, Tomasz Hebda, Jakub Fitas, and Jan Giełżecki. "The Follow-up Photobioreactor Illumination System for the Cultivation of Photosynthetic Microorganisms." Energies 13, no. 5 (2020): 1143. http://dx.doi.org/10.3390/en13051143.

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The article presents the basic conceptual assumptions of a photobioreactor with a complementary lighting system. The cylindrical bioreactor has three independent, interconnected, and fully controlled lighting systems. A characteristic feature is the combination of the lighting system with the measurement of photosynthetically active PAR (photosynthetically active radiation) and the optical density of the culture medium. The entire lighting system is based on RGBW (“red, green, blue, white”) LED and RBG (“red, green, blue”) LEDs. The pilot study was conducted on a simplified prototype of a phot

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Duncan, Elliott G., William A. Maher, and Simon D. Foster. "The formation and fate of organoarsenic species in marine ecosystems: do existing experimental approaches appropriately simulate ecosystem complexity?" Environmental Chemistry 12, no. 2 (2015): 149. http://dx.doi.org/10.1071/en14124.

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Environmental context In marine environments, inorganic arsenic present in seawater is transformed to organoarsenic species, mainly arsenoribosides in algae and arsenobetaine in animals. These transformations decrease the toxicity of arsenic, yet the fate of arsenoribosides and arsenobetaine when marine organisms decompose is unknown. We review the current literature on the degradation of these organoarsenic species in marine systems detailing the drivers behind their degradation, and also discuss the environmental relevance of laboratory-based experiments. Abstract Despite arsenoribosides and

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17

Descamps, Valérie, Sébastien Colin, Marc Lahaye, et al. "Isolation and Culture of a Marine Bacterium Degrading the Sulfated Fucans from Marine Brown Algae." Marine Biotechnology 8, no. 1 (2006): 27–39. http://dx.doi.org/10.1007/s10126-005-5107-0.

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18

Fedoseeva, Elena V., Iya Yu Grigorieva, Olga V. Nikolaeva, and Vera A. Terekhova. "Features of algae tests of samples containing dissolved organic matter." Issues of modern algology (Вопросы современной альгологии), no. 2(23) (2020): 40–45. http://dx.doi.org/10.33624/2311-0147-2020-2(223)-40-45.

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Algae tests are widely used due to the availability of cultivation conditions and high reproducibility. Freshwater and marine algae are used to estimate the toxicity of drinking, natural and wastewater, water extracts from soils, sewage sludge and production and consumption waste. The presence of dissolved organic matter in the samples, stimulating the growth of algae and the intensity of chlorophyll fluorescence, can significantly affect the result of algae tests, and therefore on the decision on the presence or absence of a toxic effect. When choosing algae as a test culture to determine tox

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19

Lenhart, Katharina, Thomas Klintzsch, Gerald Langer, et al. "Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>." Biogeosciences 13, no. 10 (2016): 3163–74. http://dx.doi.org/10.5194/bg-13-3163-2016.

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Abstract. Methane (CH4), an important greenhouse gas that affects radiation balance and consequently the earth's climate, still has uncertainties in its sinks and sources. The world's oceans are considered to be a source of CH4 to the atmosphere, although the biogeochemical processes involved in its formation are not fully understood. Several recent studies provided strong evidence of CH4 production in oxic marine and freshwaters, but its source is still a topic of debate. Studies of CH4 dynamics in surface waters of oceans and large lakes have concluded that pelagic CH4 supersaturation cannot

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Lenhart, K., T. Klintzsch, G. Langer, et al. "Evidence for methane production by marine algae (<i>Emiliana huxleyi</i>) and its implication for the methane paradox in oxic waters." Biogeosciences Discussions 12, no. 24 (2015): 20323–60. http://dx.doi.org/10.5194/bgd-12-20323-2015.

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Abstract. Methane (CH4), an important greenhouse gas that affects radiation balance and consequently the earth's climate, still has uncertainties in its sinks and sources. The world's oceans are considered to be a source of CH4 to the atmosphere, although the biogeochemical processes involved in its formation are not fully understood. Several recent studies provided strong evidence of CH4 production in oxic marine and freshwaters but its source is still a topic of debate. Studies of CH4 dynamics in surface waters of oceans and large lakes have concluded that pelagic CH4 supersaturation cannot

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21

Nguyen, Mai Thanh, Khai Hoang Trinh, Tri Van Dao, and Hung Van Nguyen. "RESEARCH ON ISOLATION, INVITRO CULTURE OF MARINE MICROALGAE (Chaetoceros calcitrans Paulsen, 1905) AND IT'S APPLICATION AS FOOD FOR WHITE SHIRMP (Penaeus vannamei)." Science and Technology Development Journal 12, no. 13 (2009): 28–36. http://dx.doi.org/10.32508/stdj.v12i13.2326.

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In 1940, two cultivation methods for siliceous marine algae were developted in Japan. Fujinaga determined that Skeletonema costatum and Chaetoceros sp. Algae originally were the main food of larval shrimps from the phase of Zoea until the phase of Postlavae. In Viet Nam, by early 1970's, the cultivation of high value aquatic products started to atract attention. In this context, many researchs have been focus on algae cultivation in order to find the suitable species for local condition. In this study, Chaetoceros calcitrans algae were massed on TT3 medium with cell density of 20.104 cell.ml-1

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Easton, Erin E., Carlos F. Gaymer, Alan M. Friedlander, and James J. Herlan. "Effects of herbivores, wave exposure and depth on benthic coral communities of the Easter Island ecoregion." Marine and Freshwater Research 69, no. 6 (2018): 997. http://dx.doi.org/10.1071/mf17064.

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The Easter Island ecoregion includes Rapa Nui (Easter Island; RN), with a human population of ~5600, and the uninhabited Salas y Gómez (SyG). Although the culture and terrestrial ecology of RN have been well studied, we know little about the marine environment of these islands, particularly the interplay among herbivores, algae, and corals, and how coral reef communities differ between islands, by wave energy exposure, and between depths. To address the potential roles of herbivores, wave-energy exposure, and depth on the sessile benthic communities, we examined herbivorous fish biomass, sea u

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Li, Feng, Mingbiao Dong, Ning Zhang, et al. "Euchlorocystis marina sp. nov. (Oocystaceae, Trebouxiophyceae), a New Species of Green Algae from a Seawater Shrimp Culture Pond." Diversity 14, no. 2 (2022): 119. http://dx.doi.org/10.3390/d14020119.

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Oocystaceae is a cosmopolitan family of green algae with distinct morphology and ultrastructure. Most of the reported species in this family are freshwater species, and there are few marine species reported. In this study, we describe a new marine species of Oocystaceae, Euchlorocystis marina sp. nov. based on material collected from a seawater shrimp culture pond in Zhanjiang, China. An integrative approach, including phylogenetic analyses of 18S rDNA, light microscopy, and transmission electron microscopy, was used for the taxonomic study of the strains. Morphological observation results sho

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Park, Bum Soo, Won-Ji Choi, Ruoyu Guo, Hansol Kim, and Jang-Seu Ki. "Changes in Free-Living and Particle-Associated Bacterial Communities Depending on the Growth Phases of Marine Green Algae, Tetraselmis suecica." Journal of Marine Science and Engineering 9, no. 2 (2021): 171. http://dx.doi.org/10.3390/jmse9020171.

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Bacteria are remarkably associated with the growth of green algae Tetraselmis which are used as a feed source in aquaculture, but Tetraselmis-associated bacterial community is characterized insufficiently. Here, as a first step towards characterization of the associated bacteria, we investigated the community composition of free-living (FLB) and particle-associated (PAB) bacteria in each growth phase (lag, exponential, stationary, and death) of Tetraselmis suecica P039 culture using pyrosequencing. The percentage of shared operational taxonomic units (OTUs) between FLB and PAB communities was

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Kharchuk, I. A. "The storage of anhydrobiotic cultures of microalgae and cyanobacteria of A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS." Marine Biological Journal 5, no. 1 (2020): 90–98. http://dx.doi.org/10.21072/mbj.2020.05.1.09.

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Reliable preservation of microalgae cultures and creation of genetic banks of strains is one of the important tasks of modern biology. To date, 792 collections of various cultivated organisms from 76 countries are registered in the catalog of the World Federation for Culture Collections in the WDCM CCINFO database. This is the most extensive consolidated database of culture collections, which includes both well-known large collections and small repositories of research and educational institutions from all over the world. The database contains 47 algological collections and 80 collections of v

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Stelmakh, L. V., and I. I. Babich. "Use of the automated cell counter Luna-II for estimating the abundance of marine microalgae cells and their sizes in cultures." Monitoring systems of environment, no. 3 (September 24, 2020): 90–95. http://dx.doi.org/10.33075/2220-5861-2020-3-90-95.

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Marine microalgae isolated in algologically pure cultures are widely used for basic and applied research. All studies related to microalgae are accompanied by an assessment of their abundance and cell size. The main method for determining these parameters is light microscopy. However, this method is quite time-consuming, therefore, at present, various kinds of automatic particle counters are increasingly being used. This significantly reduces the processing time of microalgae samples and increases the accuracy of measurements. The purpose of this work is to evaluate the possibility of using an

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Malzahn, Arne M., Nicole Aberle-Malzahn, Katherina Schoo, and Maarten Boersma. "Culture conditions affect the nutritional value of the copepod Acartia tonsa." Journal of Agricultural and Marine Sciences [JAMS] 20 (January 1, 2015): 40. http://dx.doi.org/10.24200/jams.vol20iss0pp40-46.

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Live feed are still necessary for the rearing of larval stages of several fish species, especially marine ones. Compared to Artemia, copepods are of superior quality. This is based on a suite of traits like size, movement, and nutritional value. Copepods are for example usually high in protein and fatty acids. Essential fatty acid profiles reflect to a large degree the fatty acid supply, which provides the opportunity to manipulate fatty acid profiles of, amongst others, copepods. By manipulating nutrient supply of the algae Rhodomonas salina we were able to double essential fatty acid concent

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Paramasivam, Primilla, and Gaanty Pragas Maniam. "Removal of Heavy Metals from Petroleum Industry Wastewater Using Indigenous Microalgae <i>Scenedesmus </i>sp." Key Engineering Materials 974 (February 16, 2024): 25–30. http://dx.doi.org/10.4028/p-ledw39.

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Petroleum industry effluents contain hazardous compounds such as heavy metals, which can damage the environment and human health. In this work, petroleum wastewater used as a medium to culture marine algae Scenedesmus sp. with the aim of removing maximum heavy metals. The efficiency of Scenedesmus sp. were examined in laboratory scale for elimination of COD, BOD and total petroleum heavy metals. The marine algae were monitored in pure petroleum wastewater as well as 25%, 50% and 75% diluted wastewater samples which conducted for 15 days. At the condition of 27 ± 2 °C, Scenedesmus sp. removed 3

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Trigub, A. G., and V. I. Ipatova. "INFLUENCE OF NANOCOMPOSITE Ag/AgCl ON THE CULTURE OF MICROALGAE SCENEDESMUS QUADRICAUDA AND PHAEODACTYLUM TRICORNUTUM." Toxicological Review, no. 2 (April 28, 2018): 44–50. http://dx.doi.org/10.36946/0869-7922-2018-2-44-50.

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The toxicity of the Ag/AgCl nanocomposite was evaluated at different concentrations in chronic experiments for 41 days using standard freshwater and marine plant test organisms of Scenedesmus quadricauda (0.05, 0.1, 0.5 and 1.0 mg/l) and Phaeodactylum tricornutum (0.25, 0.5, 1.0, and 2.0 mg/L). Comparative sensitivity of test organisms in acute experiments (72 hours) in terms of LC50 was carried out. It was established that the green alga of S. quadricauda is more sensitive to the Ag/AgCl nanocomposite (LC50 = 0.02 mg/l) than the marine diatomea P. tricornutum (LC50 = 0.3 mg/l). The greatest a

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Day, John G., and Michael Francis Turner. "Live protist curation at the Scottish Association for Marine Science, 1884–2017." Archives of Natural History 45, no. 2 (2018): 267–82. http://dx.doi.org/10.3366/anh.2018.0519.

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Understanding and exploiting marine microbial biodiversity is a huge task. Integral to this is the capacity to identify and maintain exemplar taxa ex situ, so that they may be studied or utilized. This paper focuses on protists, primarily photosynthetic protists, including microalgae and macroalgae, as well as the prokaryotic cyanobacteria. It draws together the strands of activities undertaken by scientists in the fields of taxonomy, systematics and algal cultivation associated with the Scottish Association for Marine Science at Oban and its predecessors: the Scottish Marine Station, original

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Wang, Qianqian, Xinguo Shi, Yisong Guo, et al. "Optimization of Algicidal Activity for Alteromonas sp. FDHY-03 against Harmful Dinoflagellate Prorocentrum donghaiense." Journal of Marine Science and Engineering 10, no. 9 (2022): 1274. http://dx.doi.org/10.3390/jmse10091274.

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Prorocentrum donghaiense is a harmful-algal-bloom-forming species of planktonic dinoflagellates widely distributed around the world, which threatens the marine environment and human health. Bacteria are promising biological agents to control algal growth in HABs. Previously, we isolated an Alteromonas sp. FDHY-03, a P. donghaiense-lysing bacteria strain, from Xiapu Sea area of China. In order to improve the algicidal activity of this strain, we optimized the medium composition and culture conditions. Based on single-factor method experiment design, the optimum medium component of algicidal eff

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Setyono, Dwi Eny Djoko. "KARAKTERISTIK BIOLOGI KUDA LAUT (Hippocampus spp) SEBAGAI PENGETAHUAN DASAR BUDIDAYANYA." OSEANA 45, no. 1 (2020): 70–81. http://dx.doi.org/10.14203/oseana.2020.vol.45no.1.57.

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Many species of marine organisms live in Indonesian waters have a potential for aquaculture (fishes, crustaceans, mollusc, echinoderm, and algae). They are cultured for food resources, the basis for cosmetic and natural medicine, and also as ornamental fish for marine aquarium. Seahorse (Syngnathidae: Hippocampus) is a marine fish which has high ecological and economic value. Fishing pressure of wild seahorse increased significantly when buyers offering an attractive price for the catch. High levels of fishing effort keep the wild stocks of seahorses well below the level that could be supporte

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Miao, Feng Ping, Jing Cheng Zuo, Zheng Yi Liu, and Song Qin. "Comparison and Analysis of Hydrogen Production Capacity of 8 Strains of Marine Green Algae." Advanced Materials Research 512-515 (May 2012): 1479–83. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1479.

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In this study, four strains of Chlorella genus and four strains of Tetraselmis genus were investigated to research their in vitro hydrogenase activities and hydrogen productions. C.sp.-3 showed the second highest in vitro hydrogenase activity with 297.48 nmol H2/(μg Chla h) and the highest volume of H2 production with 10.246 μl/L among all the strains. Although T. sp.-3 exhibited a much low H2 production of 0.298 μl/L, its in vitro hydrogenase activity was the highest with 315.92 nmol H2/(μg Chla h). During the continuous culture of five weeks, the hydrogen production of C. sp.-3 reached the p

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KAISE, Toshikazu, Yukiko OYA-OHTA, Takafumi OCHI, et al. "Toxicological Study of Organic Arsenic Compound in Marine Algae using Mammalian Cell Culture Technique." Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 37, no. 3 (1996): 135–41. http://dx.doi.org/10.3358/shokueishi.37.135.

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Zhang, Zhizhen, Lu Chen, Xiufang Zhang, et al. "Bioactive Bafilomycins and a New N-Arylpyrazinone Derivative from Marine-derived Streptomyces sp. HZP-2216E." Planta Medica 83, no. 18 (2017): 1405–11. http://dx.doi.org/10.1055/s-0043-111897.

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AbstractA MeOH extract prepared from culture of an actinomycete Streptomyces sp. HZP-2216E isolated from marine green algae Ulva pertusa was found to significantly inhibit proliferation of human glioma cells. Two different media were applied to culture this marine actinomycete, which produced two new compounds of 23-O-butyrylbafilomycin D and streptoarylpyrazinone A, together with known bafilomycin D, 9-hydroxybafilomycin D, and bafilomycin A1. Structures of new compounds were determined by extensive NMR spectroscopic analyses and HRESIMS data. Bioactive assay indicated that all isolated bafil

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Cheng, Xiaopeng, Xu Zhao, Jun Lin, et al. "Rotation Culture of Macroalgae Based on Photosynthetic Physiological Characteristics of Algae." Biology 13, no. 6 (2024): 459. http://dx.doi.org/10.3390/biology13060459.

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Seaweed farming has made outstanding contributions to food supply and the restoration of the ecological environment despite the limitations in production and ecological effects due to the current intensive farming of single algae species. These limitations can be overcome by selecting suitable algal species based on their physiological characteristics and by constructing a large-scale seaweed rotation model. This study carried out a trial culture in aquaculture sea areas, and performed in situ monitoring of the environmental conditions and physiological characteristics of Saccharina japonica,

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Wilson, William H., Declan C. Schroeder, Jenna Ho, and Martin Canty. "Phylogenetic analysis of PgV-102P, a new virus from the English Channel that infects Phaeocystis globosa." Journal of the Marine Biological Association of the United Kingdom 86, no. 3 (2006): 485–90. http://dx.doi.org/10.1017/s0025315406013385.

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A new virus that infects the harmful algal bloom-forming microalga Phaeocystis globosa was isolated from surface water in the English Channel off the coast of Plymouth, UK, in May 2001. Phylogenetic analysis of the DNA polymerase gene revealed the virus isolate, designated PgV-102P, belongs to the family Phycodnaviridae, a group of large double-stranded DNA viruses known to infect algae. Basic characterization of PgV-102P revealed it was a lytic virus with a relatively slow culture lysis period of 10-days. The genome size (176 kbp) and capsid diameter (98 nm) of PgV-102P fall at the bottom end

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Bruhn, Jesper Bartholin, Lone Gram, and Robert Belas. "Production of Antibacterial Compounds and Biofilm Formation by Roseobacter Species Are Influenced by Culture Conditions." Applied and Environmental Microbiology 73, no. 2 (2006): 442–50. http://dx.doi.org/10.1128/aem.02238-06.

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ABSTRACT Bacterial communities associated with marine algae are often dominated by members of the Roseobacter clade, and in the present study, we describe Roseobacter phenotypes that may provide this group of bacteria with selective advantages when colonizing this niche. Nine of 14 members of the Roseobacter clade, of which half were isolated from cultures of the dinoflagellate Pfiesteria piscicida, produced antibacterial compounds. Many non-Roseobacter marine bacteria were inhibited by sterile filtered supernatants of Silicibacter sp. TM1040 and Phaeobacter (formerly Roseobacter) strain 27-4,

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Rajneesh Bandhu, Kriti Kanwar, and Wamik Azmi. "Exploring marine algae for the systematic isolation of alginate lyase producers." International Journal of Science and Research Archive 10, no. 1 (2023): 338–48. http://dx.doi.org/10.30574/ijsra.2023.10.1.0755.

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Alginate, a complex polysaccharide predominantly found in seaweeds, is degraded into alginate oligosaccharides by the enzyme alginate lyase, an enzyme of high interest for its diverse applications in medicine and industry. In this study, our primary focus was to isolate microorganisms with robust alginate lyase-producing capabilities from marine algae. Through systematic screening methodologies and 16S rRNA gene sequencing, the isolate was taxonomically classified as belonging to the Paenibacillus genus and has been archived in gene bank with the accession number OM980630. A comprehensive opti

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Liu, Shu Xia, Yi Wan, and Dun Zhang. "Studies on Adhesion of Nitzschia closterium and Chlorella vulgaris to 316L Stainless Steel." Advanced Materials Research 485 (February 2012): 385–88. http://dx.doi.org/10.4028/www.scientific.net/amr.485.385.

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Microalgae can cause damages to the marine engineering material by adhering to the surface of the material. In this study the adhesion of Nitzschia closterium (bacillariophyceae) and Chlorella vulgaris (chlorophyceae) to 316L stainless steel were investigated. The influences of surface roughness and culture pH value on adhesion were performed. The results showed that the adhesion of N. closterium increased significantly with the increasing roughness (F = 17; p < 0.001). And both species of algae were prone to adhesion to 316L stainless steel immerged in alkalescent medium. Impedimetric meth

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Kim, Minjae, Hyeon Jun Oh, Khanh Nguyen, and EonSeon Jin. "Identification and characterization of Dunaliella salina OH214 strain newly isolated from a saltpan in Korea." Algae 37, no. 4 (2022): 317–29. http://dx.doi.org/10.4490/algae.2022.37.9.13.

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Carotenoids are effective antioxidants that are found in various photosynthetic organisms. Marine microalgae are an advantageous bioresource for carotenoid production because they do not compete with other crops for freshwater and arable land. This study reports a newly isolated Dunaliella strain from the Geumhong Saltpan on Yeongjong Island, West Sea, Korea. The new strain was isolated and classified as Dunaliella salina through phylogenetic analysis and was named the OH214 strain (Deposit ID: KCTC14434BP). The newly isolated strain can survive in a wide range of NaCl concentrations (0.3−5.0

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Ran, Chunqiu, Fengjie Zhang, Hongjie Sun, and Budiao Zhao. "Effect of culture medium on hydrogen production by sulfur-deprived marine green algae Platymonas subcordiformis." Biotechnology and Bioprocess Engineering 14, no. 6 (2009): 835–41. http://dx.doi.org/10.1007/s12257-008-0287-x.

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Han, Lisong, Jingjing Zhang, Cheng Lang, et al. "Mussel Culture Activities Facilitate the Export and Burial of Particulate Organic Carbon." Journal of Marine Science and Engineering 12, no. 6 (2024): 910. http://dx.doi.org/10.3390/jmse12060910.

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The recent expansion of shellfish mariculture could significantly impact the ocean carbon cycle and its associated biogeochemical processes. To understand the source and fate of particulate organic carbon (POC), a summer cruise was conducted from September 8 to 10, 2022, at a mussel farm on Gouqi Island and its adjacent areas located in the East China Sea. Parameters included in situ temperature and salinity, contents of dissolved oxygen (DO), suspended particulate matter (SPM), POC, and chlorophyll a (Chl a), as well as the stable carbon isotopic composition (δ13C) of organic matter in partic

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Han, Zhen-Lian, Min Yang, Xiao-Dan Fu, et al. "Evaluation of Prebiotic Potential of Three Marine Algae Oligosaccharides from Enzymatic Hydrolysis." Marine Drugs 17, no. 3 (2019): 173. http://dx.doi.org/10.3390/md17030173.

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Alginate oligosaccharides (AlgO), agarose oligosaccharides (AO), and κ-carrageenan oligosaccharides (KCO) were obtained by specific enzymatic hydrolysis method. The molecular weight distributions of the three oligosaccharides were 1.0–5.0 kDa, 0.4–1.4 kDa, and 1.0–7.0 kDa, respectively. The culture medium was supplemented with the three oligosaccharides and fermented by pig fecal microbiota in vitro, for 24 h. Each oligosaccharide was capable of increasing the concentration of short-chain fatty acids (SCFAs), especially butyric acid, and altering the microbiota composition. Linear discriminant

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Darienko, Tatyana, Cecilia Rad-Menéndez, Christine N. Campbell, and Thomas Pröschold. "Molecular Phylogeny of Unicellular Marine Coccoid Green Algae Revealed New Insights into the Systematics of the Ulvophyceae (Chlorophyta)." Microorganisms 9, no. 8 (2021): 1586. http://dx.doi.org/10.3390/microorganisms9081586.

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Most marine coccoid and sarcinoid green algal species have traditionally been placed within genera dominated by species from freshwater or soil habitats. For example, the genera Chlorocystis and Halochlorococcum contain exclusively marine species; however, their familial and ordinal affinities are unclear. They are characterized by a vegetative cell with lobated or reticulated chloroplast, formation of quadriflagellated zoospores and living epi- or endophytically within benthic macroalgae. They were integrated into the family Chlorochytriaceae which embraces all coccoid green algae with epi- o

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Gram, Lone, Anemone Bundvad, Jette Melchiorsen, Charlotte Johansen, and Birte Fonnesbech Vogel. "Occurrence of Shewanella algae in Danish Coastal Water and Effects of Water Temperature and Culture Conditions on Its Survival." Applied and Environmental Microbiology 65, no. 9 (1999): 3896–900. http://dx.doi.org/10.1128/aem.65.9.3896-3900.1999.

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ABSTRACT The marine bacterium Shewanella algae, which was identified as the cause of human cases of bacteremia and ear infections in Denmark in the summers of 1994 and 1995, was detected in seawater only during the months (July, August, September, and October) when the water temperature was above 13°C. The bacterium is a typical mesophilic organism, and model experiments were conducted to elucidate the fate of the organism under cold and nutrient-limited conditions. The culturable count of S. algae decreased rapidly from 107 CFU/ml to 101 CFU/ml in approximately 1 month when cells grown at 20

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Ren, Cheng-Zhe, Hui-Min Gao, Jun Dai, et al. "Taxonomic and Bioactivity Characterizations of Mameliella alba Strain LZ-28 Isolated from Highly Toxic Marine Dinoflagellate Alexandrium catenella LZT09." Marine Drugs 20, no. 5 (2022): 321. http://dx.doi.org/10.3390/md20050321.

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Microalgae host varied microbial consortium harboring cross-kingdom interactions with fundamental ecological significance in aquatic ecosystems. Revealing the complex biofunctions of the cultivable bacteria of phycosphere microbiota is one vital basis for deeply understanding the mechanisms governing these dynamic associations. In this study, a new light-yellow pigmented bacterial strain LZ-28 was isolated from the highly-toxic and harmful algal bloom-forming dinoflagellate Alexandrium catenella LZT09. Collective phenotypic and genotypic profiles were obtained to confidently identify this stra

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Awolusi, Oluyemi Olatunji, Adedeji Nelson Ademakinwa, Abidemi Ojo, Mariana Erasmus, Faizal Bux, and Mayowa Oladele Agunbiade. "Marine Actinobacteria Bioflocculant: A Storehouse of Unique Biotechnological Resources for Wastewater Treatment and Other Applications." Applied Sciences 10, no. 21 (2020): 7671. http://dx.doi.org/10.3390/app10217671.

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The bioactive compounds produced by actinobacteria have played a major role in antimicrobials, bioremediation, biofuels, enzymes, and anti-cancer activities. Biodegradable microbial flocculants have been produced by bacteria, algae, and fungi. Microbial bioflocculants have also attracted biotechnology importance over chemical flocculants as a result of degradability and environmentally friendly attributes they possess. Though, freshwater actinobacteria flocculants have been explored in bioflocculation. Yet, there is a paucity of information on the application of actinobacteria flocculants isol

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Iriani, D., B. Hasan, HS Putra, and TM Ghazali. "Optimization of Culture Conditions on Growth of Chlorella sp. Newly Isolated From Bagansiapiapi Waters Indonesia." IOP Conference Series: Earth and Environmental Science 934, no. 1 (2021): 012097. http://dx.doi.org/10.1088/1755-1315/934/1/012097.

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Abstract Chlorella sp. is a type of micro-sized green algae obtained in fresh or marine waters. However, many factors need to evaluate the growth of Chlorella sp. mainly the culture conditions. This study aimed to evaluate the culture conditions in optimizing the growth of Chlorella sp. newly isolated from Bagansiapiapi marine waters. The experiment was carried out at temperature ±25°C, light intensity 2300 Lux using TL-D lamp (36 W). There were six treatments as culture conditions for the cultivation of Chlorella sp.:1). Bean Sprouts (Vigna radiata) Extract Media (BSEM) with light continuousl

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Mizukami, Yuzuru, Masanori Okauchi, Hitoshi Kito, Shin-ichi Ishimoto, Toshiro Ishida, and Mituru Fuseya. "Culture and development of electrically fused protoplasts from red marine algae, Porphyra yezoensis and P. suborbiculata." Aquaculture 132, no. 3-4 (1995): 361–67. http://dx.doi.org/10.1016/0044-8486(95)93662-t.

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