Results 81 to 90 of about 1,271,261 (227)

Symbioses between cyanobacterial communities and feather mosses in boreal forests and consequences for dinitrogen fixation [PDF]

open access: yes, 2013
Feather moss-cyanobacteria associations, although still poorly understood, are recognised as essential for the regulation of nitrogen (N) input into N-limited ecosystems such as boreal forests due to their ability to carry out N2-fixation.
Bay, Guillaume
core   +1 more source

Presence and Function of a Circadian Clock in Marine Cyanobacteria Prochlorococcus and Synechococcus

open access: yes, 2021
This study attempts to explore cyanobacterial circadian clock-related gene expression and analysis of related environmental conditions in marine environments.
Cheney, Connor
core  

Patterns of Post-Glacial Genetic Differentiation in Marginal Populations of a Marine Microalga [PDF]

open access: yes, 2012
This study investigates the genetic structure of an eukaryotic microorganism, the toxic dinoflagellate Alexandrium ostenfeldii, from the Baltic Sea, a geologically young and ecologically marginal brackish water estuary which is predicted to support ...
Kremp, A.   +50 more
core   +2 more sources

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

open access: yesJournal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez   +4 more
wiley   +1 more source

The Chemistry, Biochemistry and Pharmacology of Marine Natural Products from Leptolyngbya, a Chemically Endowed Genus of Cyanobacteria

open access: yesMarine Drugs, 2020
Leptolyngbya, a well-known genus of cyanobacteria, is found in various ecological habitats including marine, fresh water, swamps, and rice fields. Species of this genus are associated with many ecological phenomena such as nitrogen fixation, primary ...
Yueying Li   +4 more
doaj   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer   +9 more
wiley   +1 more source

Overlooked components of lipid metabolism: Odd‐chain polyunsaturated fatty acids in photosynthetic microorganisms

open access: yesJournal of Phycology, EarlyView.
Abstract This mini‐review examines odd‐carbon polyunsaturated fatty acids (odd‐PUFAs), a rare but biologically significant group of fatty acids in photosynthetic microorganisms. Odd‐PUFAs are straight‐chain fatty acids containing an odd number of carbon atoms and two or more methylene‐interrupted double bonds. They typically account for less than 1% of
Linda Nedbalová   +2 more
wiley   +1 more source

Inorganic Carbon Acquisition and Photosynthetic Metabolism in Marine Photoautotrophs: A Summary

open access: yesPlants
The diffusive availability of CO2 for photosynthesis is orders of magnitude lower in water than in air. This, and the low affinity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) for CO2, implies that most marine photoautotrophs ...
Sven Beer, John Beardall
doaj   +1 more source

Description of Flavicapitulum gen. nov. and two new species of Marmoreocelis from thermal habitats in the Americas

open access: yesJournal of Phycology, EarlyView.
Abstract Three novel taxa in the Coleofasciculales were observed in hot springs in Yellowstone National Park, Wyoming, United States, and in the Tabaconcito thermal springs on the Rio Tabacón in Costa Rica. Flavicapitulum vaporiphilum gen. et sp. nov. was located in a supported clade with Gracilinea and Marmoreocelis.
Jeffrey R. Johansen   +3 more
wiley   +1 more source

Marine Institute's Monitoring Programme for Veterinary Residues & Environmental Contaminants in Farmed Finfish

open access: yes, 2006
European Union Directive 96/23 of the 29th April 1996 requires member states to monitor certain substances and residues thereof in live animals and animal products in EU member countries.
Marine Institute
core   +1 more source

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