Articles tagged with Algae
Researchers found that bacteria can anticipate the arrival of new seasons by using their internal 24-hour clocks. Samples exposed to short days showed significantly higher survival rates when plunged into ice, indicating that photoperiodism is critical in preparing bacteria for longer-term environmental changes.
Scientists have identified a novel photoreceptor in cyanobacteria that can detect green/teal light, breaking the typical red/green spectrum. The discovery highlights the remarkable diversity and editability of cyanobacteriochromes, expanding our understanding of how these organisms perceive color.
Researchers from Tokyo Metropolitan University have discovered a fern species that can exist as an independent gametophyte for long periods without a sporophyte. This breakthrough sheds new light on the evolution of ferns and their adaptation to environmental niches.
Researchers analyzed lake macroinvertebrate fauna, particularly chironomids, to reconstruct the lake's natural state. This helps establish a reference point for conservation purposes, as significant changes occurred during the economic boom and fish stocking.
Researchers at Osaka Metropolitan University found that Ecklonia cava polyphenols can protect against neurodegeneration and improve motor function in Parkinson's disease model mice. The antioxidants activate the AMPK enzyme and inhibit reactive oxygen species production, reducing neuronal cell death.
A study by University of Exeter scientists found that warming conditions can break the symbiotic relationship between single-celled organisms and algae, leading to a loss of productivity in these relationships. This has serious implications for global photosynthesis rates, particularly in coral reefs.
Non-flowering bryophytes, including mosses, have sophisticated immune receptor repertoires that can be transferred between flowering and non-flowering plants. This discovery offers a new source of resistance genes against pathogens for major crops facing climate change threats.
Researchers created microscopic vehicles propelled by swimming green algae, which can be maneuvered by the algae. The team developed two types of vehicles: the rotator and the scooter, with the latter displaying erratic rolling motions.
Researchers at Yale University have discovered a simple mechanism for optimal light-use efficiency of photosynthesis inspired by giant clams. This discovery could lead to the development of more efficient solar cells and renewable energy systems.
Researchers found that glaucophytes produce potent hormones like ethylene in response to external stressors, slowing down their growth rate. This suggests that the ability to use chemical cues is not unique to complex life.
Engineers have developed a pill that releases microscopic robots to treat inflammatory bowel disease (IBD) in mice. The treatment significantly reduces IBD symptoms and promotes the healing of damaged colon tissue.
Kelp forests in southern Maine have collapsed due to warming, while northern regions continue to provide key ecosystem services. The study highlights regional differences in forest health and the importance of targeted management to preserve these ecosystems.
Researchers developed microscopic robots that swim through lungs to deliver cancer-fighting medication directly to metastatic tumors. The approach inhibited tumor growth and spread, improving survival rates compared to control treatments.
Concordia researchers develop micro photosynthetic power cells that harness algae's photosynthesis to generate electricity. The system can power low- and ultra-low power devices like IoT sensors, removing carbon dioxide from the atmosphere and producing only water as a byproduct.
A new study by University of East Anglia and Ocean University of China found that ocean algae play a significant role in producing DMSP, a compound that helps regulate the Earth's climate. The discovery could change our understanding of how these tiny marine organisms impact the planet.
Researchers have gained new insights into how a specific enzyme, HydF, facilitates the production of hydrogen from algae enzymes. The study reveals the importance of amino acids in anchoring and synthesizing a crucial ligand for hydrogen turnover.
A deadly epidemic discovered last year in the Red Sea has spread to the Indian Ocean, annihilating most sea urchin populations and threatening coral reef stability. The researchers identified a scuticociliate parasite as the cause of the mass mortality.
Researchers discovered that the regeneration process of certain marine worms is controlled by a common transcription factor called runt, which also regulates the communication with the algae living inside them. This finding sheds light on the complex interactions between species in symbiotic relationships.
Researchers have discovered that complementary genes in bacteria and algae living in the same algal colonies coordinate the use and movement of nutrients within the colony. This discovery could lead to new ways to prevent harmful algal blooms, improving water quality and habitat for aquatic organisms.
Researchers have generated complete genome data for four filamentous 'star algae' species, revealing overabundances of signalling genes and environmental response factors that underpin molecular mechanisms shaping plant bodies. The findings provide insights into the origins of land plants and their ability to adapt to environments.
A new study suggests that incorporating seafood rich in umami, such as fish and shellfish, into vegetable dishes can boost their flavor and make them more appealing. The research uses a mathematical equation to calculate the umami content of various seafood options, finding that even small amounts can greatly enhance the taste.
A team of scientists from Pohang University of Science & Technology developed an artificial vitreous body based on alginate to treat retinal detachment. The hydrogel maintains vision post-surgery and regulates fluid dynamics within the eye, preventing recurrence and air bubble formation.
A perfect storm of calm weather and limited tidal movement trapped coral eggs in Bills Bay, leading to a massive die-off. However, research by Curtin University shows that some corals were able to survive and that the area has a history of recovering from similar events.
Researchers have discovered the gene responsible for producing a unique type of chlorophyll in marine algae. This breakthrough could lead to improved crop yields on less land, making it a key step towards achieving a more sustainable food supply. The study also demonstrated that a land plant can produce this specific type of chlorophyll.
Researchers at the University of Córdoba discovered a mutually beneficial relationship between an algae and three bacteria that produces hydrogen and biomass while cleaning wastewater. The combination, composed of Chlamydomonas reinhardtii alga and Microbacterium forte sp. nov., Bacilluscereus, and Stenotrophomonas goyi sp. nov., yield...
Researchers identified pyrenoid-associated proteins in a marine chlorarachniophyte alga, suggesting independent evolution of CO2-fixing organelles in each algal group. These findings have implications for genetic engineering to increase photosynthetic performance and improve crop productivity.
Research reveals that bleaching reefs release organic compounds that promote bacterial growth, leading to an increase in opportunistic bacteria and potential pathogens. This shift in microbial communities may harm corals through suffocation or disease.
A recent Monterey Bay Aquarium study found that denser and more sheltered kelp forests can withstand severe stressors from warming ocean temperatures. The research also showed that persistent kelp forests are better equipped to handle multiple stressors, including sea urchin outbreaks and marine heatwaves.
A new study on Antarctic algae reveals that they can survive without vitamin B12, a finding with significant implications for climate change and the carbon cycle. The algae, Phaeocystis antarctica, has a fusion B12-independent methionine synthase protein that enables it to adapt to low B12 availability.
Dust storms enhance phytoplankton tolerance to thermal and pH changes, facilitating algae growth in mountain lakes. This experimental study highlights the impact of atmospheric dust on aquatic ecosystems.
New research reveals how human activities affect the marine phosphorus cycle in coastal seas, leading to changes in coastal biodiversity and ecosystem services. The study identifies an 'Anthropogenic Nitrogen Pump' that reduces phosphate levels, limiting algae growth, and enhances the utilization of dissolved organic phosphorus.
The discovery of 1.63-billion-year-old multicellular fossils from North China reveals that eukaryotes acquired simple multicellularity approximately 1.05 billion years ago. This finding supports the early appearance of the last eukaryotic common ancestor in the late Paleoproterozoic, consistent with molecular clock studies.
A study published in Current Biology reveals that complex green organisms, including land plants and algae, evolved multicellularity almost a billion years ago. Researchers used gene sequencing data to pinpoint the emergence of this trait in filamentous algal lineages.
New study reveals that kelp forests off the Pacific Coast were thriving 32 million years ago, with fossilized holdfasts showing evidence of ancient marine mammals and invertebrates. The discovery sheds light on the evolution of kelp ecosystems and highlights the importance of fossil hunting by amateur collectors.
Researchers at the University of Exeter discovered that spirulina and chlorella, two commercially available algae, are rich in protein and stimulate muscle growth. The study found that these algae can be an interesting and sustainable source of protein for maintaining and building muscle.
A study led by Arizona State University found that herbivore fishing to less than 80% of their unfished density compromises reef resilience due to algae overgrowth. The research, published before regulatory decisions in Hawai'i, highlights the critical role of herbivores in maintaining coral reef health.
Researchers found that specific algae from the genus Breviolum help Caribbean octocorals withstand heat waves and bleaching events. The study provides clues for the future of coral reefs and highlights the need for further research to better understand the ecosystem.
Researchers found that ROP proteins evolved during the transition from unicellular to multicellular plant life. ROP proteins are highly conserved between land plants and streptophyte algae, excluding certain species. The study suggests that ROP signaling may have contributed to the evolution of multicellularity in plants.
Researchers found a tradeoff between fast growth and heat tolerance in corals, with thermally sensitive algae dominating faster growth but only in cooler water. This study helps predict reef futures and inform conservation strategies, highlighting the complexity of coral growth on a reef.
A new type of algal threat is displacing corals globally due to blocking sunlight and producing harmful chemicals. Peyssonnelioid alga crusts are expanding quickly across reefs, killing off corals and transforming entire ecosystems.
Researchers at the University of Houston have discovered that microalgae can be used to sequester carbon dioxide and convert it into mass-produced proteins, lipids, and carbohydrates. This process has the potential to transform food production, treat wastewater, and produce sustainable biofuels.
A new study has discovered microfossils resembling modern-day algae that lived in the oceans during the Cambrian Period, around half a billion years ago. The findings suggest that early animals were evolving to feed on plankton, starting a predator-prey relationship that continues to this day.
Marimo, special growth forms of filamentous algae, are threatened by rising lake temperatures due to global warming. The warmer water temperature outpaces the inward decomposition, making them increasingly fragile and decreasing their shell thickness.
Researchers have uncovered the molecular mechanism behind a marine feeding strategy that could optimize biofuel production from marine brown algae. The study reveals how sea slugs and their prey co-evolved to maintain ecological balance, with potential applications in biotechnological biofuel production.
A study found that ocean acidification reduced the strength and density of fleshy seaweed tissues, making them more fragile and susceptible to damage. The research suggests that this could have drastic effects on coastal ecosystems, leading to a decrease in seaweed coverage and negatively impacting organisms dependent on these habitats.
A novel biodegradable optical fiber made from agar has been developed to measure or modulate electrical currents in the body. The fiber can be used to monitor bioelectrical stimuli produced in the brain or muscles, serving as a biodegradable alternative to conventional electrodes.
A new University of Washington study measures how sea-ice microbes respond to changing conditions, offering clues to the impacts of climate change on this remote ecosystem. The results show that single-celled algae produce cryoprotectants to survive in winter and adjust their salt-like organic molecules to balance water balance.
A research team from the University of Göttingen investigated the molecular networks of a single-celled alga to understand plant terrestrialization. They identified 'hub genes' that play a central role in coordinating gene expression, revealing insights into long-term evolutionary patterns.
Researchers analyzed chytrid DNA from Japanese alpine snowpack sites and found three novel lineages of parasitic fungi. These chytrids are related to well-known frog pathogens but have a unique relationship with snow algae, potentially inhibiting melting of glaciers.
A historic red tide event in 2020 was caused by an exceptionally dense bloom of Lingulodinium polyedra, a plankton species that can swim and outgrow its competitors, leading to harmful algal blooms. The study validated a 50-year-old hypothesis and highlighted the exceptional swimming ability of dinoflagellates.
Researchers found that sinking culled fruit trees into the Wadden Sea boosted local marine life diversity and abundance. The study shows native biodiversity can be restored using trees as reefs.
Researchers at Texas A&M University have developed an isochoric vitrification technique that preserves and revives live coral fragments without forming ice. This breakthrough enables the collection of coral samples throughout the year, supporting conservation efforts to protect reefs and their diverse ecosystems.
Researchers studying foraminifers, tiny algae with calcareous shells, have discovered six different strategies under various environmental conditions. These strategies are crucial for predicting changes in the ocean's calcium balance and carbon cycle under climate change.
Researchers at Oregon State University have developed a new approach using VOCs to detect toxic cyanobacterial blooms in waterways. The method shows promise for predicting the start and end of bloom events, potentially reducing economic losses attributed to these harmful algae blooms.
The study reveals extensive genome size variation among closely related algal strains, with a more than twofold range of approximately 450-1,100 megabases. Genome-wide copy number variation, rather than duplication or proliferation, drives this dynamics, suggesting rapid changes in genome size through frequent duplications and deletions.
A new study by Ohio State University suggests that the toxicity of Lake Erie's harmful algal bloom varies over the summer, with an overestimation in warmer months and underestimation in cooler months. The research aims to develop a more accurate toxicology forecast for Lake Erie.
Researchers have developed a new method to remove harmful algal blooms by coating a floating sponge in charcoal-like powder. The technique successfully destroyed over 85% of algal cells, including toxin-producing cyanobacteria, without generating unwanted products.
Researchers replicate the movement of algae and hurricanes using laser beams and microscopic rotors, offering new insights into complex natural dynamics. The study demonstrates the ability to reproduce synthetically the dance of algae on a cellular scale.
Researchers discovered a TIR1/AFB-independent auxin signaling mechanism in Klebsormidium nitens, a primitive alga. They identified KnRAV as a key transcription factor that activates auxin-inducible genes and binds to promoter sequences.
Researchers have identified a phenomenon that could help coral reef managers plan and act for the future. Ocean processes during El Niño strengthened the North Equatorial Counter Current, driving cooler plankton-rich waters to Palmyra's coral reefs and enabling them to better manage heat stress.