Results 31 to 40 of about 1,049 (152)

A meta-analysis of environmental factors influencing the algal colonisation in caves and rockshelters worldwide

Acta Carsologica, 2023
Microclimate conditions, mainly radiation, temperature and relative humidity vary according to cavities´ configurations and determine the microorganism’s colonisation.
Andrea Belda, Laura García-Abad, Antonia Dolores Asencio   +2 more
doaj   +1 more source

CARACTERIZAÇÃO SENSORIAL DO ODOR DA Aphanothece microscopic Nägeli DESIDRATADA

Boletim do Centro de Pesquisa de Processamento de Alimentos, 1998
Caracterizou-se o atributo odor da Aphanothece microscopic Nägeli visando sua utilização na alimentação humana. Levantou-se a terminologia para descrição do seu odor, assim como da Spirulina sp e de uma alga comercial, a partir de consumidores. Selecionou-se e treinou-se equipe para expressar a intensidade do odor, de acordo com padrões (penetrante ...
MARIA ISABEL QUEIROZ, ROSA DE OLIVEIRA TREPTOW, PAULO ROBERTO KOETZ   +2 more
openaire   +2 more sources

Cultivo axênico das cianobactérias marinhas Aphanothece halophytica Frémy, 1933 e Chroococcus minutus (Kützing) Nägeli, 1849 Axenic culture of the sea cyanobacterias Aphanothece halophytica Frémy, 1933 and Chroococcus minutus (Kützing) Nägeli, 1849

Acta Botânica Brasílica, 2011
O presente estudo demonstra o método utilizado para a obtenção do cultivo axênico das cianobactérias Aphanothece halophytica e Chroococcus minutus, obtidas das salinas do município de Arraial do Cabo - RJ. Nas salinas, esses organismos estão estruturados
Rodrigo de Siqueira Melo, Maria Helena Campo Baeta Neves, Odara Ramôa Baptista   +2 more
doaj   +1 more source

Spatio‐Temporal Resolution of Microbial Functions and Taxa Associated With Cyanobacterial Harmful Algae Blooms Along a 500‐Km Aquatic Continuum in the Lake Erie Watershed

Environmental Microbiology, Volume 27, Issue 10, October 2025.
The aquatic microbiome can influence cyanobacterial harmful algal blooms. Abundances of genes and transcripts for phosphorus acquisition, denitrification and nitrogen fixation were higher upstream, whereas in Lake Erie genes and transcripts for microcystin production were higher.
Sophie Crevecoeur, Lori Phillips, Arthur Zastepa, Jérôme Comte, Ngan Diep, Alice Dove, Thomas Edge, Thijs Frenken, R. Michael McKay, Susan B. Waston   +9 more
wiley   +1 more source

Influence of temperature in phosphate removal by microalgae in heterotrophic bioreactors

Revista Ambiente & Água, 2012
The removal of total dissolved phosphate by the cyanobacteria Aphanothece microscopica Nägeli cultivated heterotrophically in dairy processing wastewater was investigated in this work.
Maria Isabel Queiroz, Adriana Gonçalves da Silva Manetti, Eduardo Jacob-Lopes, Juliana Guerra Vieira   +3 more
doaj   +1 more source

The Postbiotic Potential of Microalgae

Food Frontiers, Volume 6, Issue 4, Page 1701-1714, July 2025.
Description of “Microalgal Postbiotic” following ISAPP Consensus (Salminen et al. 2021b) (Icons produced with Biorender) ABSTRACT The International Scientific Association for Probiotics and Prebiotics (ISAPP) has defined postbiotics as “preparations of inanimate microorganisms and/or their components that confer a health benefit on the host ...
Francesco Martelli, Caterina Nicolotti, Benedetta Bottari   +2 more
wiley   +1 more source

Gliding motility in Aphanothece halophytica: analysis of wall proteins in mot mutants [PDF]

Journal of Bacteriology, 1981
The unicellular cyanobacterium Aphanothece halophytica (PCC 7418) is motile, and spontaneous nonmotile (mot) mutants accumulate when the organism is subcultured. Analysis of mot mutants suggests that a glycoprotein in the cell wall is involved in the motility mechanism.
openaire   +2 more sources

Nature of Phytoplankton Communities in the Southern Hemisphere Shallow Lakes, With an Emphasis on the Presence of Submerged Aquatic Vegetation: A Review

Aquaculture, Fish and Fisheries, Volume 5, Issue 3, June 2025.
ABSTRACT Differences in the ecological stability of shallow lakes are reflected in the functional nature of the distinct phytoplankton communities in the Southern Hemisphere. Recent studies have highlighted growing uncertainties of the previous concepts regarding phytoplankton cosmopolitanism, suggesting these communities may be more regionally ...
Anton E. S. Patrick, Singarayer Florentine, Grant C. Palmer, Julie Mondon, Bradley D. Mitchell   +4 more
wiley   +1 more source

Stronger dispersal potential of alkaline phosphatase‐encoding bacteria ensures higher organic phosphorus mineralization rate

Functional Ecology, Volume 39, Issue 3, Page 756-769, March 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Scientific theory largely neglects linkage between organic phosphorus (Po) mineralization rate and dispersal potential of alkaline phosphatase‐encoding bacteria (PEB) containing the phoD gene. Different densities of substrates (i.e.
Wenjie Wan, Geoffrey Michael Gadd, Xiang Xiong, Weihong Zhang, Wenzhi Liu, Donglan He, Yarui Cheng, Yuyi Yang   +7 more
wiley   +1 more source

Effects of Changing Snow and Ice Cover Conditions on Phytoplankton Chlorophyll‐a and Community Composition in a Mesotrophic Lake

Freshwater Biology, Volume 70, Issue 3, March 2025.
ABSTRACT Ice and snow cover on lakes plays a fundamental role for under‐ice ecology by reducing water column mixing and light availability. Previous studies have shown that such reductions can significantly influence the growth and reproduction of phytoplankton, primarily focusing on changes in ice‐on and ice‐off dates in a warming climate.
Ellinor Jakobsson, Silke Langenheder, Peter Eklöv, Gesa A. Weyhenmeyer   +3 more
wiley   +1 more source