Results 1 to 10 of about 3,236 (117)

Similar growth potentials of cyanobacteria and algae explain their coexistence in desert soils [PDF]

Scientific Reports
In deserts that cover one-third of the Earth’s terrain, soil cyanobacteria and algae are key carbon dioxide (CO2) fixers because few other plants can tolerate intense solar radiation, prolonged desiccation, and extreme temperature shifts.
Khin Maw Kyi, Elad Levintal, Nina A Kamennaya   +2 more
doaj   +2 more sources

Synergistic growth, metabolic products, and matrix quantification in dual-species biofilms of oral pathogens [PDF]

Journal of Applied Oral Science
Biofilms exhibit virulence traits that promote microbial protection, such as an extracellular matrix composed of exopolysaccharides (EPS), and contribute to host tissue damage via acid production.
Evelyn Giuliana Velásquez-Espedilla, Victor Feliz Pedrinha, Maricel Rosario Cardenas Cuellar, Pedro Luis Busto Rosim, Daniela Alejandra Cusicanqui Méndez, Thiago Cruvinel, Flaviana Bombarda de Andrade   +6 more
doaj   +3 more sources

Toxic effects of chlorpyrifos, cypermethrin and glyphosate on the non-target organism Selenastrum capricornutum (Chlorophyta)

Anais da Academia Brasileira de Ciências, 2021
The toxic effects of the insecticides chlorpyrifos and cypermethrin, and the herbicide glyphosate on the growth, biovolume and ultrastructure of the green microalgae Selenastrum capricornutum were evaluated.
CAROLINA FERNÁNDEZ, VIVIANA ASSELBORN, ELISA R. PARODI   +2 more
doaj   +1 more source

Periphytic algal biomass in two distinct regions of a tropical coastal lake Biomassa de algas perifíticas em duas regiões distintas de uma lagoa costeira tropical

Acta Limnologica Brasiliensia, 2012
AIM: This study assessed the phycoperiphyton biomass in two regions submitted to different human impacts on Juara Lake, a coastal ecosystem with multiple uses, to order to test the hypothesis that the sampling sites that receive domestic sewage shows ...
Stéfano Zorzal de Almeida, Valéria de Oliveira Fernandes   +1 more
doaj   +3 more sources

Changes in Phytoplankton Community Composition and Phytoplankton Cell Size in Response to Nitrogen Availability Depend on Temperature

Microorganisms, 2022
The climate-driven changes in temperature, in combination with high inputs of nutrients through anthropogenic activities, significantly affect phytoplankton communities in shallow lakes. This study aimed to assess the effect of nutrients on the community
Veronika Dashkova, Dmitry V. Malashenkov, Assel Baishulakova, Thomas A. Davidson, Ivan A. Vorobjev, Erik Jeppesen, Natasha S. Barteneva   +6 more
doaj   +1 more source

Phytoplankton functional and morphological groups as indicators of environmental variability in a lateral channel of the Upper Paraná River floodplain

Acta Limnologica Brasiliensia, 2014
AIM: Models of phytoplankton functional classification based on functional (FGs) and morphological (MBFGs) traits can be an important tool in aquatic monitoring.
Jascieli Carla Bortolini, Luzia Cleide Rodrigues, Susicley Jati, Sueli Train   +3 more
doaj   +1 more source

Combined use of chlorophyll a and phycocyanin fluorescence sensors for quantification and differentiation of phytoplankton: a useful approach for small surface water bodies

Acta Biologica Slovenica, 2018
Sensors based on in vivo measurements of photosynthetic pigments fluorescence enable real-time phytoplankton monitoring with high spatial and temporal resolution. A combination of chlorophyll a (CHL) and phycocyanin (PC) fluorescence sensors was used for
Tinkara Rozina, Tina Eleršek, Maja Zupančič Justin, Andrej Meglič   +3 more
doaj   +1 more source

Copepod Feeding Responses to Changes in Coccolithophore Size and Carbon Content

Journal of Marine Science and Engineering, 2022
Phytoplankton stoichiometry and cell size could result from both phenology and environmental change. Zooplankton graze on primary producers, and this drives both the balance of the ecosystem and the biogeochemical cycles.
Jordan Toullec, Alice Delegrange, Adélaïde Perruchon, Gwendoline Duong, Vincent Cornille, Laurent Brutier, Michaël Hermoso   +6 more
doaj   +1 more source

Spatial and temporal fluctuation of phytoplankton functional groups in a tropical reservoir - doi: 10.4025/actascibiolsci.v35i3.12988

Acta Scientiarum: Biological Sciences, 2013
Along the horizontal axis of reservoirs are generally recognized three zones (fluvial, transition and lacustrine) with distinct hydrodynamic and physical, chemical and biological properties.
Lívia Oliveira Ruiz Moreti, Luana Martos, Vânia Mara Bovo-Scomparin, Luzia Cleide Rodrigues   +3 more
doaj   +1 more source

Mass Cultivation of Microalgae: II. A Large Species Pulsing Blue Light Concept

BioTech, 2023
If mass cultivation of photoautotrophic microalgae is to gain momentum and find its place in the new “green future”, exceptional optimizations to reduce production costs must be implemented.
Hans Chr. Eilertsen, Jo Strømholt, John-Steinar Bergum, Gunilla Kristina Eriksen, Richard Ingebrigtsen   +4 more
doaj   +1 more source