Results 111 to 120 of about 80,153 (224)

Microbial Endolithic Community at Meteor Crater

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley   +1 more source

Cyanobactins from Cyanobacteria: Current Genetic and Chemical State of Knowledge

open access: yesMarine Drugs, 2015
Cyanobacteria are considered to be one of the most promising sources of new, natural products. Apart from non-ribosomal peptides and polyketides, ribosomally synthesized and post-translationally modified peptides (RiPPs) are one of the leading groups of ...
Joana Martins, Vitor Vasconcelos
doaj   +1 more source

Photosynthetic primary production in the Mesoproterozoic

open access: yesNew Phytologist, EarlyView.
Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo   +1 more
wiley   +1 more source

The underappreciated roles of fog and dew on vegetation and biocrusts

open access: yesNew Phytologist, EarlyView.
Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
wiley   +1 more source

Toxic Picoplanktonic Cyanobacteria—Review

open access: yesMarine Drugs, 2015
Cyanobacteria of a picoplanktonic cell size (0.2 to 2.0 µm) are common organisms of both freshwater and marine ecosystems. However, due to their small size and relatively short study history, picoplanktonic cyanobacteria, in contrast to the ...
Natalia Jakubowska   +1 more
doaj   +1 more source

Novel Glomeromycotina–moss associations identified in California dryland biocrusts

open access: yesNew Phytologist, EarlyView.
Summary Drylands, which comprise c. 45% of Earth's land area, host biological soil crusts (biocrusts): symbiotic communities of cyanobacteria, fungi, algae, lichen, and bryophytes that stabilize soil and support key ecosystem functions. Moss‐dominated biocrusts are particularly interesting due to their potential to illuminate ancient bryophyte–fungal ...
Kian H. Kelly   +3 more
wiley   +1 more source

Marine Benthic Cyanobacteria Contain Apoptosis-Inducing Activity Synergizing with Daunorubicin to Kill Leukemia Cells, but not Cardiomyocytes

open access: yesMarine Drugs, 2010
The potential of marine benthic cyanobacteria as a source of anticancer drug candidates was assessed in a screen for induction of cell death (apoptosis) in acute myeloid leukemia (AML) cells.
Stein Ove Døskeland   +5 more
doaj   +1 more source

Photoprotective potential of gadusol against ultraviolet B radiation in melanocytes

open access: yesPhotochemistry and Photobiology, EarlyView.
Gadusol protects melanocytes from ultraviolet B (UVB)‐induced damage without cytotoxicity. Abstract The increasing incidence of skin cancer, including melanoma, combined with the need for ultraviolet (UV) filters that are safe for human health and marine ecosystems, is driving the search for new photoprotective agents.
Andressa Mai Matsumoto   +8 more
wiley   +1 more source

Chemical Diversity of Marine Filamentous Benthic Cyanobacteria

open access: yesPhycology
Genomic and chemical analysis has revealed that numerous species of filamentous cyanobacteria harbor complex secondary metabolisms tailored to their particular ecological niche.
Fernanda O. Chagas   +9 more
doaj   +1 more source

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