Results 51 to 60 of about 1,371 (189)

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

open access: yesAquaculture, 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   +4 more
wiley   +1 more source

Separação de biomassa gerada no efluente da indústria de laticínios tratado por cianobactéria Aphanothece microscópica Nägeli [PDF]

open access: yes, 2012
Nesta dissertação, avaliou-se a eficiência de diferentes agentes coagulantes no processo de separação da biomassa de Aphanothece microscópica Nägeli oriunda do tratamento de efluente de uma indústria de laticínio.
Fonseca, Cíntia Protzen
core  

Mapping of protein-protein interaction sites in the plant-type [2Fe-2S] ferredoxin. [PDF]

open access: yesPLoS ONE, 2011
Knowing the manner of protein-protein interactions is vital for understanding biological events. The plant-type [2Fe-2S] ferredoxin (Fd), a well-known small iron-sulfur protein with low redox potential, partitions electrons to a variety of Fd-dependent ...
Haruka Kameda   +3 more
doaj   +1 more source

Nitrate Uptake in the Halotolerant Cyanobacterium Aphanothece halophytica is energy-dependent driven by ΔpH [PDF]

open access: yesBMB Reports, 2005
The energetics of nitrate uptake by intact cells of the halotolerant cyanobacterium Aphanothece halophytica were investigated. Nitrate uptake was inhibited by various protonophores suggesting the coupling of nitrate uptake to the proton motive force.
Aran, Incharoensakdi, Surasak, Laloknam
openaire   +2 more sources

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

open access: yesFunctional 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   +7 more
wiley   +1 more source

Nutritional evaluation of single-cell protein produced by Aphanothece microscopica Nägeli

open access: yesBioresource Technology, 2010
The aim of this research was to evaluate the nutritional characteristics of Aphanothece microscopica Nägeli microalgae developed in the effluent of parboiled rice. The biomass was biologically evaluated by rat growth, during 10 days for nitrogen balance studies and 28 days for blood analysis.
Leila Queiroz, Zepka   +4 more
openaire   +2 more sources

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

open access: yesFreshwater 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   +3 more
wiley   +1 more source

Characterization of Nitrogen-Fixing Cyanobacterial Consortia Isolated from the Rhizosphere of Carica papaya

open access: yesAgronomy
Nitrogen-fixing cyanobacterial consortia are an alternative to the indiscriminate use of chemical fertilizers that affect the environment, fix atmospheric nitrogen, and can therefore be used as plant growth promoters, synthesize various substances such ...
Yadenis Ortega Díaz   +9 more
doaj   +1 more source

Nutrient inputs in mesocosms of an oligotrophic lake fail to sustain an algal bloom

open access: yesEcosphere, Volume 16, Issue 2, February 2025.
Abstract Harmful algal blooms (HABs) rapidly change and threaten aquatic ecosystems. HABs in oligotrophic lakes are becoming more commonly observed, despite the long‐held paradigm that algal blooms cannot happen in low‐nutrient systems. This raises the question of whether nutrient loading, understood as a major driver of HABs, plays an important role ...
Jacquelyn L. Lewis   +5 more
wiley   +1 more source

REMOÇÃO DE DQO DO EFLUENTE DA PARBOILIZAÇÃO DO ARROZ PELACIANOBACTÉRIAAPHANOTHECE MICROSCOPICA NÄGELI

open access: yesRevista Brasileira de Engenharia de Biossistemas, 2009
Cianobactérias são microrganismos fotossintetizantes usados na produção de proteínas unicelularese na remoção de nitrogênio e fósforo de águas residuárias.
REINALDO G. BASTOS   +5 more
doaj   +1 more source

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