All Algae articles
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NewsAlgae and water fleas in lakes: Light color influences food webs
Phytoplankton are the basic food source for many aquatic organisms. A new study shows that the light spectrum is more important for these microalgae and for lake ecosystems than previously assumed.
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NewsLake Tahoe algae experiment suggests seasonal shifts ahead
As the climate warms and nutrient inputs shift, algal communities in cool, clear mountain lakeswill likely experience seasonal changes, according to a new study. The effects of climate warming were especially pronounced in the colder months.
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NewsScientist invents MICROCAP, an algae-based oxygen generator that removes CO₂ and purifies indoor air
A lecturer in Thailand has invented the MICROCAP air purifier, which uses photosynthetic algae to absorb carbon dioxide and produce 20 times more oxygen than trees.
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NewsClimate change may increase the spread of neurotoxin in the oceans
Climate-driven oxygen loss in the Black Sea thousands of years ago triggered the expansion of microorganisms capable of producing the potent neurotoxin methylmercury. That is shown in a new study which suggests that similar processes could occur in today’s warming oceans.
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NewsEarth’s oxygen boom: a fresh perspective for a billion-year-old problem
A new study examines nickel and urea in early microbial habitats, showing how ancient cyanobacteria adapted to their chemical surroundings. By recreating Archean conditions in the lab, researchers uncovered clues about the delicate balances that shaped early cyanobacterial life.
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NewsTiny architects, titanic climate impact: scientists call for coccolithophores to get their own day
Five European research organisations have launched an initiative to make 10 October International Coccolithophore Day, highlighting their crucial role in regulating the planet’s carbon balance, producing oxygen, and sustaining the ocean ecosystems that underpin all life.
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NewsDo stranded dolphins have Alzheimer’s disease - and how are cyanobacteria involved?
Scientists have come up with an unusual hypothesis: perhaps dolphins become disoriented by suffering from a form of Alzheimer’s disease. It appears that Alzheimer’s-type neuropathology and disorientation may result from chronic exposure to toxic molecules produced by cyanobacteria.
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NewsHigh-latitude phytoplankton particularly sensitive to climate change
A team of researchers have investigated how high-latitude phytoplankton communities responded to ancient climate warming. High-latitude communities are historically understudied and likely to be particularly sensitive to human-driven climate change.
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NewsMicrobial DNA sequencing reveals nutrient pollution and climate change reinforce lake eutrophication
A new study using DNA sequencing of lakebed microbes reveals that nutrient pollution from agricultural runoff and climate change amplify each other in ways that profoundly affect the health of lake ecosystems.
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NewsCell death in microalgae resembles that in humans
For the first time, researchers have observed the same type of programmed cell death in microalgae as in humans. The discovery shows that this central biological process is older than previously thought.
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NewsExtreme diatoms inside the Arctic ice glide into the record books
Diatoms found in polar ice are active until temperatures drop to -15 C - the lowest ever recorded for movement by a eukaryotic cell.
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NewsOcean warming puts vital marine microbe Prochlorococcus at risk
A new study finds that Prochlorococcus prefers ocean water between 66 and 86 degrees and doesn’t tolerate water much warmer. Climate models predict that subtropical and tropical ocean temperatures will exceed that threshold in the next 75 years.
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NewsMicroalgae are more significant for carbon dioxide absorption in the Southern Ocean than previously thought
14,000 years ago, algal blooms in the Southern Ocean helped to massively reduce the global carbon dioxide content of the atmosphere – as has now been revealed by new analyses of ancient DNA. Declines in sea ice pose a serious threat to these algae.
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NewsTiny ocean partnership between algae and bacteria reveals secrets of evolution
The microscopic alliance between algae and bacteria offers rare, step-by-step snapshots of how bacteria lose genes and adapt to increasing host dependence, a new study shows.
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NewsNew study finds concerning sea star response to an algal neurotoxin
Researchers found potentially concerning concentrations of the neurotoxin domoic acid in sea stars even in the absence of the algal blooms that are thought to drive DA outbreaks.
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NewsUnicellular cyanobacterium UCYN-B significantly contributes to global oceanic nitrogen fixation
Researchers report that the cyanobacterium UCYN-B drives high N2 fixation rates in previously unrecognized hotspots accross the global ocean, making a significant contribution to the ocean’s nitrogen supply and productivity.
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NewsNew study reveals phytoplankton’s contribution to centuries-long ocean carbon storage
Phytoplankton have long been viewed as transient players in the global carbon cycle, but researchers have discovered that these tiny organisms can directly pump “stubborn” carbon into the ocean, where it may persist for centuries.
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NewsStudy reveals the microbial battlegrounds within estuaries - and the part played by microplastics
Estuaries are known hotspots for biodiversity and are turbulent mixing zones where freshwater and seawater microbes confront one another. Source: Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Aqua satellite captured this true-color image of the Baltic Sea ...
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NewsResearchers create improved natural blue food dye from algae
Food scientists have created a natural blue food dye made of algae protein that could replace petroleum-based artificial food colorants with a stable, adaptable option.
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NewsNew study illuminates how diatoms thrive in — and light up — the Southern Ocean
An area of the remote Southern Ocean that’s long confused ocean color satellites by reflecting large amounts of turquoise-colored light appears to be full of silica-rich diatoms, according to a new study. There is also evidence in these polar waters of coccolithophores.