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Journal articles on the topic 'Microalgal bioma'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

Karcheva, Zornitsa, Zhaneta Georgieva, Alexander Tomov, et al. "Heavy metal stress response of microalgal strains Arthronema africanum and Coelastrella sp. BGV." BioRisk 17 (April 21, 2022): 83–94. https://doi.org/10.3897/biorisk.17.77483.

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The present study compared the stress response of two microalgal strains – Arthronema africanum (Cyanoprokaryota) and Coelastrella sp. BGV (Chlorophyta), after heavy metals' treatment. Changes of algal growth, pigment and protein content were analyzed after adding Cu, Cd and Pb (50 µM and 100 µM) to the nutrition medium. It was found that Cd and Pb significantly inhibited growth and protein biosynthesis of microalgae, but the effect of Cu remained less pronounced. In both strains, a decrease of chlorophyll content was observed, while carotenoid content markedly increased, especially in Coelast

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2

Dorrell, Richard G., Alan Kuo, Zoltan Füssy, et al. "Convergent evolution and horizontal gene transfer in Arctic Ocean microalgae." Life Science Alliance 6, no. 3 (2022): e202201833. http://dx.doi.org/10.26508/lsa.202201833.

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Microbial communities in the world ocean are affected strongly by oceanic circulation, creating characteristic marine biomes. The high connectivity of most of the ocean makes it difficult to disentangle selective retention of colonizing genotypes (with traits suited to biome specific conditions) from evolutionary selection, which would act on founder genotypes over time. The Arctic Ocean is exceptional with limited exchange with other oceans and ice covered since the last ice age. To test whether Arctic microalgal lineages evolved apart from algae in the global ocean, we sequenced four lineage

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3

Keat Long, Low, Iqbal Ahmed, and Ani Idris. "Effects of Organic Solvent and Temperature on the Extraction of Lutein from Scenedesmus sp Biomass." Jurnal Kejuruteraan si2, no. 1 (2019): 125–30. http://dx.doi.org/10.17576/jkukm-2019-si2(1)-15.

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Lutein is a valuable bioactive compound that has various industrial applications. In nature, lutein is a yellow coloured isoprenoid polyene pigment, being produced by many photosynthetic organisms. With regard to Scenedesmus sp as the studied organism, this study aims to investigate the efficiency of microalgae-derived lutein extraction process. Repetitive solvent extraction method had been examined with four different organic solvents under different treatment temperatures for their lutein extraction effectiveness. Results showed that diethyl ether was the most effective organic solvent to ex

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Prambodo, Muhammad Sindhunata, Riche Hariyati, and Tri Retnaningsih Soeprobowati. "Spirulina platensis Geitler sebagai Fikoremediator Logam Berat Pb Skala Laboratorium." Bioma : Berkala Ilmiah Biologi 18, no. 2 (2016): 64. http://dx.doi.org/10.14710/bioma.18.2.64-69.

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Industrial waste contributes the heavy metals pollution in the environment, especially in the water. One of the heavy metals that pollute the environment is lead (Pb). Lead is a substance that is harmful to organisms, especially humans, both adults and children. Solutions to tackle Pb pollution isby remediation process. Physical and chemical remediation methods usually costly and ineffective. One of the alternative methods which is used is the bioremediation uses microalgae or called as phycoremediation. One of microalgae which is used as agents of phycoremediation is Spirulina platensis Geitl

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5

Rahmawati, Novia, Muhammad Zainuri, and Hermin Pancasakti Kusumaningrum. "Aplikasi Pakan Kaya Karotenoid Hasil Fusi ProtoplasmIntergenera Dunaliella salina dan Chlorella vulgaris pada Udang Windu (Penaeus monodon F.) Stadia PL-20 Di Desa Asempapan, Pati, Jawa Tengah." Bioma : Berkala Ilmiah Biologi 15, no. 2 (2013): 46. http://dx.doi.org/10.14710/bioma.15.2.46-52.

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Dunaliella salina and Chlorella vulgaris is a natural feed microalgae with high carotenoid content that can be increased using protoplast fusion technique. Protoplast fusion as one of the application fields of genetic engineering is a method for obtaining recombinant with the desired properties and profitable in a short time. This study aimed to see the effect of the addition of carotenoid-rich feed results from protoplast fusion recombinant D. salina and C. vulgaris on the survival rate and weight of shrimp post larvae. Mixed fusion results feed and artificial feed needed for the growth of po

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6

Rismiarti, Asih, Hermin Pancasakti Kusumaningrum, and Muhammad Zainuri. "Karakterisasi Dan Identifikasi Molekuler Fusan Hasil Fusi Protoplas Interspesies Chlorella pyrenoidosa dan Chlorella vulgaris Menggunakan 18SrDNA." Bioma : Berkala Ilmiah Biologi 18, no. 2 (2016): 30. http://dx.doi.org/10.14710/bioma.18.2.30-40.

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Chlorella pyrenoidosa is a unicellular green algae that grows in fresh water with carotenoids consisting of β-carotene, α-carotene, anthaxanthin, neoxanthin, zeaxanthin and lutein. C. vulgaris usually it lives in sea water with carotenoids, chlorophyll, tocopherol, ubiquinone and proteins. The quality of them is improved by protoplast fusion and identified further using moleculer analysis. This study aims to find out the characterization and identification of molecular fusan that is obtained from interspecies C. pyrenoidosa and C. vulgaris protoplast fusion process using 18SrDNA. Both C. pyren

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7

Ahmed, Ishtiaq, Muhammad Asgher, Farooq Sher, et al. "Exploring Marine as a Rich Source of Bioactive Peptides: Challenges and Opportunities from Marine Pharmacology." Marine Drugs 20, no. 3 (2022): 208. http://dx.doi.org/10.3390/md20030208.

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This review highlights the underexplored potential and promises of marine bioactive peptides (MBPs) with unique structural, physicochemical, and biological activities to fight against the current and future human pathologies. A particular focus is given to the marine environment as a significant source to obtain or extract high-value MBPs from touched/untouched sources. For instance, marine microorganisms, including microalgae, bacteria, fungi, and marine polysaccharides, are considered prolific sources of amino acids at large, and peptides/polypeptides in particular, with fundamental structur

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8

Ferraz Sena, Camilla, Kelly Vieira Silva, Jorge Rêgo Figueiredo, et al. "Diversidade de Euglenophyceae do Pantanal dos Marimbus (Bahia, Brasil)." Heringeriana 16 (January 12, 2022): e917959. http://dx.doi.org/10.17648/heringeriana.v16i1.917959.

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A classe Euglenophyceae inclui flagelados unicelulares, autotróficos, mixotróficos e heterotróficos, com morfologia variável e ampla distribuição em ecossistemas aquáticos continentais. O presente estudo teve como objetivo realizar um levantamento florístico de Euglenophyceae no Pantanal dos Marimbus, uma planície de inundação no bioma Caatinga, localizada no Parque Nacional da Chapada Diamantina. A região sofre inundações periódicas; as amostras foram realizadas a partir de uma grande área de lagoas interligadas durante maio e setembro de 2014, abril de 2015 e agosto de 2016, durante os per

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9

Kosarev, A. V., D. E. Ivanov, and A. F. Kamenets. "The effect of manganese ions (II) on representatives of aquatic biota." IOP Conference Series: Earth and Environmental Science 949, no. 1 (2022): 012013. http://dx.doi.org/10.1088/1755-1315/949/1/012013.

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Abstract The work is devoted to the consideration of the peculiarities of the impact of manganese (II) on representatives of freshwater biota. Manganese plays an important role in the aquatic environment, since it determines the course of the most important metabolic processes in hydrobiont organisms of varying degrees of organization. The analysis of processes involving manganese has shown that the main chemical factors affecting the accumulation of manganese in the aquatic environment are anaerobic biochemical processes caused by active silting of the riverbed due to the washout of organic s

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10

Garrido-Romero, Javier, Alston Bernard D'Souza, Dieter Hanelt, and Abdelfatah Abomohra. "Lipid-rich particles of processed food waste for microalgae harvest through lipid-enriched floating biomat formation." Bioresource Technology 394 (February 2024): 130251. http://dx.doi.org/10.1016/j.biortech.2023.130251.

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11

Hotos, George N. "A Preliminary Survey on the Planktonic Biota in a Hypersaline Pond of Messolonghi Saltworks (W. Greece)." Diversity 13, no. 6 (2021): 270. http://dx.doi.org/10.3390/d13060270.

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During a survey in 2015, an impressive assemblage of organisms was found in a hypersaline pond of the Messolonghi saltworks. The salinity ranged between 50 and 180 ppt, and the organisms that were found fell into the categories of Cyanobacteria (17 species), Chlorophytes (4 species), Diatoms (23 species), Dinoflagellates (1 species), Protozoa (40 species), Rotifers (8 species), Copepods (1 species), Artemia sp., one nematode and Alternaria sp. (Fungi). Fabrea salina was the most prominent protist among all samples and salinities. This ciliate has the potential to be a live food candidate for m

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12

Benicio, Sarah Haysa Mota, João Antônio Xavier Manso, Marcelino Benvindo-Souza, Daniela de Melo e. Silva, Aparecido Divino da Cruz, and Klebber Teodomiro Martins Formiga. "Analysis of water quality, bioindicators, contaminants and their cytogenetic impacts in a Cerrado reservoir." Revista Brasileira de Ciências Ambientais 60 (January 23, 2025): e2115. https://doi.org/10.5327/z2176-94782115.

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The fragmentation of Brazilian rivers due to the construction of hydroelectric dams has altered aquatic ecosystems, resulting in the accumulation of residues in sediments. This study evaluated the cytotoxicity and genotoxicity of water and sediments from the Cana Brava reservoir, located in the Tocantins-Araguaia basin in the Cerrado biome, using the Allium cepa test. Sampling points were situated in the Cana Brava reservoir near two tributaries, the Bonito River and the Varjão Stream, areas susceptible to contaminant input due to proximity to urban areas. Physicochemical parameters, metals th

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13

James, Kimberley R., Belinda Cant, and Tom Ryan. "Responses of freshwater biota to rising salinity levels and implications for saline water management: a review." Australian Journal of Botany 51, no. 6 (2003): 703. http://dx.doi.org/10.1071/bt02110.

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All of the plants and animals that make up freshwater aquatic communities are affected by salinity. Many taxa possess morphological, physiological and life-history characteristics that provide some capacity for tolerance, acclimatisation or avoidance. These characteristics impart a level of resilience to freshwater communities.To maintain biodiversity in aquatic systems it is important to manage the rate, timing, pattern, frequency and duration of increases in salinity in terms of lethal and sublethal effects, sensitive life stages, the capacity of freshwater biota to acclimatise to salinity a

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14

Van, Do Thi Cam, Lam Van Toan, Nguyen Thi Phuong Dung, et al. "Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption." Vietnam Journal of Chemistry 61, S3 (2023): 116–25. http://dx.doi.org/10.1002/vjch.202300068.

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AbstractHarvesting microalgae by centrifugation and filtration is very costly, affecting technical and economical feasibility of downstream processing of algal biomas to bioproducts. Flocculation is a potential technique for recovery of algae biomass. Particularly, flocculation using magnetic nanoparticles offers high separation efficiency due to their high surface area and magnetic properties. In this work, the synthesized magnetic nanoparticles including Fe3O4 and Fe3O4@SiO2 were used to harvest C. sorokiniana TH01 from aqueous suspension. The effects of pH, adsorbent dosage, algal biomass c

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15

Fedorets, Yulia, Olesya Elovskaya, Aleksandra Istomina, et al. "State of marine biota in the water area of the Muchke Bay’s Coal Terminal of the Tatar Strait." E3S Web of Conferences 390 (2023): 07037. http://dx.doi.org/10.1051/e3sconf/202339007037.

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An analysis of the species composition of phytoplankton and ichthyoplankton was carried out for the first time in the port water area of the Muchke Bay (Tatar Strait) in autumn. The species composition, distribution features and structure of macrozoobenthos were considered. Phytoplankton density is evenly distributed in the study area. The density of diatoms reached 97 % of the total phytoplankton density, and the biomass was 99 %. The microalgae Sceletonema costatum (Greville) Cleve, 1873 and Cylindrotheca closterium (Ehrenberg) Reimann & J.C.Lewin, 1964, species that live in polluted wat

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16

Sosa-Hernández, Juan Eduardo, Zamantha Escobedo-Avellaneda, Hafiz M. N. Iqbal, and Jorge Welti-Chanes. "State-of-the-Art Extraction Methodologies for Bioactive Compounds from Algal Biome to Meet Bio-Economy Challenges and Opportunities." Molecules 23, no. 11 (2018): 2953. http://dx.doi.org/10.3390/molecules23112953.

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Over the years, significant research efforts have been made to extract bioactive compounds by applying different methodologies for various applications. For instance, the use of bioactive compounds in several commercial sectors such as biomedical, pharmaceutical, cosmeceutical, nutraceutical and chemical industries, has promoted the need of the most suitable and standardized methods to extract these bioactive constituents in a sophisticated and cost-effective manner. In practice, several conventional extraction methods have numerous limitations, e.g., lower efficacy, high energy cost, low yiel

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17

MACHADO DE LIMA, NÁTHALI MARIA, and LUIS H. Z. BRANCO. "Biological soil crusts: new genera and species of Cyanobacteria from Brazilian semi-arid regions." Phytotaxa 470, no. 4 (2020): 263–81. http://dx.doi.org/10.11646/phytotaxa.470.4.1.

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In the uppermost millimeters of soils is commonly found a thin layer of cryptobiotic organisms, including cyanobacteria, microalgae, lichens, mosses, fungi, bacteria and archaea. These communities are called Biological Soil Crusts (BSCs) or biocrusts and perform important ecological functions, mainly attributed to their capacity of providing soil stability and incorporate nutrients through nitrogen and carbon fixation. Among all the organisms found in the biocrusts, the filamentous cyanobacteria Microcoleus vaginatus and M. steenstrupii are the best studied soil colonizers. The genus Microcole

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18

Fučíková, Karolina, Melissa Taylor, Louise A. Lewis, Brian K. Niece, Aleeza S. Isaac, and Nicole Pietrasiak. "Johansenicoccus eremophilus gen. et sp. nov., a novel evolutionary lineage in Chlorophyceae with unusual genomic features." Plant Ecology and Evolution 156, no. (3) (2023): 311–25. https://doi.org/10.5091/plecevo.105762.

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Background – Green algae are a diverse group of photosynthetic eukaryotes, yet are still vastly understudied compared to land plants. For many years, green algae were characterized based on their morphology and life cycles. More recently, phylogenetic and genomic analyses have been added to the phycological toolkit for a better understanding of algal biodiversity and evolutionary history. Material and methods – A desert strain of green algae was isolated from Joshua Tree National Park (JTNP) in southern California as part of a larger biodiversity survey. The alga's nuclear rRNA genes as well a

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19

Wittmann, Karl J., and Pierre Chevaldonné. "First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species." ZooKeys 1079 (December 31, 2021): 145–227. https://doi.org/10.3897/zookeys.1079.76412.

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SCUBA diving explorations of three islands off Dumont d'Urville Station at the coast of Adélie Land, East Antarctica, enabled the observation of marine ice caves. Sampling in this unusual habitat yielded a total of three species of Mysidae, altogether previously poorly known or unknown to science. Pseudomma kryotroglodytum sp. nov. is described, based on the structure of the antennal scale, telson and on cornea-like lateral portions set off against the main body of eyeplates. Mysidetes illigi is re-established at species level after almost a century in synonymy. Re-descriptions are provided fo

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20

Liu, Xiangyin, Jiannv Chen, Tiansheng Lu, and Yujie Qin. "Nitrogen Removal Performance and Biota with Microalgae Consortium Nitrosifying and Anammox Bacteria in an Upflow Reactor." Heliyon, July 2024, e34794. http://dx.doi.org/10.1016/j.heliyon.2024.e34794.

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21

van den Berg, M. F., A. M. Botha, A. Bierman, and P. Oberholster. "Determining biota succession in a domestic wastewater pond system after treatment with a specific consortium microalgae." Journal of Environmental Health Science and Engineering, October 26, 2022. http://dx.doi.org/10.1007/s40201-022-00840-z.

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22

Mitwally, Hanan, Hoda El Rashidy, and Paul Montagna. "Linkages between pelagic and benthic biota in a deteriorated coastal lake after restoration, Maruit, Egypt." Environmental Monitoring and Assessment 195, no. 8 (2023). http://dx.doi.org/10.1007/s10661-023-11525-x.

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AbstractUntil the 1960s, Lake Maruit was one of Egypt’s most productive coastal brackish lakes. Continuous polluted discharge from Alexandria city resulted in long-term deterioration. The Egyptian government started a lake restoration program in 2010. Biological linkages between pelagic and benthic communities were assessed in November 2012 using parasitism and predation. This study examined ectoparasites infesting tilapia fish from 300 samples. The platyhelminth ectoparasite, Monogenea, and parasitic-copepod Ergasilus lizae were detected. Platyhelminthes parasitized Oreochromis niloticus and

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