Ocean Sustainability
Over 70% of the earth is covered in water, which serves as a vital resource human subsistence. Contamination and acidification pose major threats to aquatic health and biodiversity. Microbes offer a promising solution in their ability to breakdown contamination from oil spills and plastics. Applied microbiologists can play a significant part in understanding biodiversity, contributing to solutions, and encouraging stewardship.
Strongest hints yet of biological activity outside the solar system
Astronomers have detected the chemical fingerprints of dimethyl sulfide (DMS) and/or dimethyl disulfide (DMDS), in the atmosphere of the exoplanet K2-18b. On Earth, these are only produced by life, primarily microbial life such as marine phytoplankton.
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Microorganisms employ a secret weapon during metabolism
Microorganisms have evolved a variety of methods for fixing carbon. Researchers investigated the methods that are utilized at extremely hot, acidic and sulfur-rich hydrothermal vents in shallow waters off the island of Kueishantao, Taiwan.
Coral reefs exude myriad chemicals, fueling dynamic microbial recycling of nutrients
New research reveals the remarkable chemical diversity of substances exuded by coral reefs and demonstrates that thousands of different chemicals derived from tropical corals and seaweeds are available for microbes to decompose and utilize.
Researchers discover large dormant virus can be reactivated in model green alga
Scientists have not only found a virus in the green alga Chlamydomonas reinhardtii but discovered the largest one ever recorded with a latent infection cycle, meaning it goes dormant in the host before being reactivated to cause disease.
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Kīlauea volcano’s ash prompted largest open ocean phytoplankton bloom
Through satellite tracking, a global study uncovered the reasons behind the stimulation of phytoplankton growth in the North Pacific Ocean, linking to the deposition of ashes to the major eruption of the Kīlauea Volcano in 2018 and nutrient deprivation in the ocean.
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With new database, researchers may be able to predict rare milky seas bioluminescent, glowing event
Researchers have compiled a database of sightings of bioluminescent ‘milky seas’, showing that sightings usually happen around the Arabian Sea and Southeast Asian waters and are statistically related to the Indian Ocean Dipole and El Niño Southern Oscillation.
Scientists link a phytoplankton bloom to starving dolphins in Florida
In 2013, 8% of the bottlenose dolphins living in Florida’s Indian River Lagoon died. Investigations have now revealed that the dolphins may have starved because key habitats for nutritious prey were destroyed by a phytoplankton bloom driven by the accumulation of fertilizer, effluent from septic tanks, and other by-products of human activity.
A borrowed bacterial gene allowed some marine diatoms to live on a seaweed diet
A group of diatom species belonging to the Nitzschia genus gave up on photosynthesis and now get their carbon straight from their environment, thanks to a bacterial gene picked up by an ancestor, a new study shows.
Coral diseases and water quality play a key role for coral restoration and survival efforts
A recent study which examined threatened Staghorn coral species found that while some coral genotypes displayed resistance to either high nutrient levels from run-off or disease, none were resistant to both stressors simultaneously.
Were our blue oceans once green?
Scientists find evidence that our oceans used to be green, suggesting that this may be a sign of primitive life, including that on alien worlds. The study suggests that cyanobacteria once flourished in green seas.
Biosurfactants for oil spill bioremediation
Oil spills across large areas of seawater disturb oxygen circulation for marine organisms, cause hypothermia in birds, adversely affect navigation routes, and hinder anthropogenic actions like fisheries and tourism. Biological treatments appear to be a promising method and offer a sustainable solution.
The power of biofilm engineering: one plus one does not always make two
Biofilms are ubiquitous in aquatic systems, where they play essential ecological roles in nutrient cycling, biogeochemical processes, and surface colonisation dynamics.
Origin of life: How microbes laid the foundation for complex cells
Researchers examining links between Asgard archaea and eukaryotes have shown that Asgard tubulins form similar microtubules, albeit smaller than those in their eukaryotic relatives. Unlike actin, these tubulin proteins appear in very few species of Asgard archaea.
Harnessing marine microbes for bioremediation: cleaning up ocean pollutants
Ocean pollution is widespread and worsening by the day. From oil spills to garbage accumulation in the Pacific, marine ecosystems are in dire need of a solution.
AMI leaders join International Microbiome Meeting in San Diego
Leading scientists from around the world recently convened at the Center for Microbiome Innovation’s International Microbiome Meeting (CIMM) at the Scripps Institution of Oceanography in San Diego.
Study identifies viruses in red tide blooms for the first time
A new study identifies viruses associated with Karenia brevis, the single-celled organism that causes red tide. By testing water samples collected from red tide blooms, the researchers found several viruses in blooms — including one new viral species.
Red coral colonies survive a decade after being transplanted in the Medes Islands
The red coral colonies that were transplanted a decade ago on the seabed of the Medes Islands have survived successfully. They are very similar to the original communities and have contributed to the recovery of the functioning of the coral reef.
How microbes can detoxify heavy metal pollution in the ocean
Researchers have successfully used microbes to reduce the heavy metal toxicity of soils and wastewater through bioremediation. Could they eventually use a similar approach to target heavy metals in the ocean?
New method uncovers dynamic microbial community in coastal sediments
Scientists utilises single celll genomics and cell staining approaches to investigate the respiratory rates and metabolic activities of the diverse microbial communities in low biomass aqautic environments, such as Maine’s coastal sediments.
Professor investigates how symbiotic groups - like corals and biofilms - can behave like single organisms
UNCG philosopher of biology Dr. Derek Skillings is the lead investigator on a new, three-year, $600,000 grant from the John Templeton Foundation for a study of the emergence and evolution of goal-directed behavior in collective entities.
Climate affects microbial life around Antarctica
Bacteria and other microbes in the seas around Antarctica are strongly influenced by water temperature and the amount of sea ice. This is shown by coordinated measurements taken off the coast of the west Antarctic Peninsula, scientists say.
Presence of potentially toxic microalgae confirmed in La Concha Bay
The proliferation of the Ostreopsis ovata algae is no cause for alarm, but it is advisable to continue taking measurements, according to researchers.
Research team publishes paradigm-challenging discovery in a Yellowstone thermophile
A graduating PhD student has made an interesting discovery about a common thermophilic bacteria dwelling in hots prings which is able to simultaneously respirate and metabolize via aerobic and anaerobic pathways.