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Categories: Biology: Marine, Biology: Microbiology
Published Scientists uncover new way viruses fight back against bacteria
(via sciencedaily.com) Original source A microscopic discovery will not only enable scientists to understand the microbial world around us but could also provide a new way to control CRISPR-Cas biotechnologies.
Published Reef-devouring predator survives coral bleaching and feasts on the survivors
(via sciencedaily.com) Original source The crown-of-thorns starfish is nature's ultimate coral predator that has a circle of life perfectly adapted to warming waters.
Published New mollusk and crustacean species in symbiosis with worms in dead coral rocks
(via sciencedaily.com) Original source The symbiotic communities of invertebrates in dead coral gravel on the shallow, warm-temperate coast of the Kii Peninsula in western Japan. New bivalve species and sideswimmer have been found to live communally with the greenish Bonellia spoonworm. Live-in symbionts share the burrows of other organisms in sand and mud on the seabed. However, studies on burrow niches in rigid substrates, such as rocks on the seabed, have been scarce.
Published Four eating behavior patterns of children
(via sciencedaily.com) Original source Children fall broadly into four eating categories, according to new research, and parents feed their children differently depending on those categories.
Published New insights into the genetics of the common octopus: Genome at the chromosome level decoded
(via sciencedaily.com) Original source Octopuses are fascinating animals -- and serve as important model organisms in neuroscience, cognition research and developmental biology. To gain a deeper understanding of their biology and evolutionary history, validated data on the composition of their genome is needed, which has been lacking until now. Scientists have now been able to close this gap and, in a new study, determined impressive figures: 2.8 billion base pairs -- organized in 30 chromosomes. What sounds so simple is the result of complex, computer-assisted genome analyses and comparisons with the genomes of other cephalopod species.
Published Scientists discover links between Alzheimer's disease and gut microbiota
(via sciencedaily.com) Original source Research identifies links between gut bacteria, inflammation and brain changes associated with Alzheimer's disease. The findings suggest that Alzheimer's symptoms can be transferred via the gut microbiota.
Published Multi-drug resistant strain of E. coli battles bacteria in healthy gut
(via sciencedaily.com) Original source Different strains of E. coli can outcompete one another to take over the gut, a new study reveals.
Published Art with DNA -- Digitally creating 16 million colors by chemistry
(via sciencedaily.com) Original source The DNA double helix is composed of two DNA molecules whose sequences are complementary to each other. The stability of the duplex can be fine-tuned in the lab by controlling the amount and location of imperfect complementary sequences. Fluorescent markers bound to one of the matching DNA strands make the duplex visible, and fluorescence intensity increases with increasing duplex stability. Now, researchers have succeeded in creating fluorescent duplexes that can generate any of 16 million colors -- a work that surpasses the previous 256 colors limitation. This very large palette can be used to 'paint' with DNA and to accurately reproduce any digital image on a miniature 2D surface with 24-bit color depth.
Published Surprising discovery about coral's resilience could help reefs survive climate change
(via sciencedaily.com) Original source A team has studied the mountainous star coral, Orbicella faveolata, to determine whether coral populations that have survived higher temperatures can pass their heat tolerance on to their offspring. To the scientists' surprise, the results showed the opposite: The offspring from a population that is less heat-tolerant performed better when exposed to high temperatures than their counterparts from a heat-tolerant population. The findings counter the commonly held notion among scientists that if coral parents can handle the heat, so should their offspring.
Published Study reveals health impact of eating disorders
(via sciencedaily.com) Original source A new study has revealed a significant association between eating disorders and physical multimorbidity, shedding new light on the health risks faced by people with these conditions. The research explores the complex relationship between eating disorders, physical health, and other issues that can influence it.
Published Ocean circulation, ice melt and increasing tourism could all be contributing to Arctic microplastics
(via sciencedaily.com) Original source Scientists measured microplastic concentrations in the highly productive Barents Sea and suggest that ocean circulation, ice melt, tourism, inadequate waste management, shipping and fishing are all likely contributors.
Published Boosting weak immune system: Scientists find an unusual weapon against virus
(via sciencedaily.com) Original source Infections with cytomegalovirus (CMV) are extremely common and often pose no major threat to the vast majority of people. They can however be deadly for people whose immune system is weakened, e.g., after bone marrow transplantation. Current treatments against CMV infections are very limited and can have severe side effects. Researchers now propose a new way to protect against CMV. Instead of targeting the virus, their approach boosts the weak immune system and lets it fight the virus on its own.
Published Pathogen that plagues food processing plants eradicated by blue light
(via sciencedaily.com) Original source A new study shows that blue light kills both dried cells and biofilms of Listeria monocytogenes.
Published Study reveals our European ancestors ate seaweed and freshwater plants
(via sciencedaily.com) Original source Researchers say they have found 'definitive' archaeological evidence that seaweeds and other local freshwater plants were eaten in the mesolithic, through the Neolithic transition to farming and into the Early Middle Ages, suggesting that these resources, now rarely eaten in Europe, only became marginal much more recently.
Published Scientists discover the possible triggers for bacterial pathogens, opening the door for new treatment strategies
(via sciencedaily.com) Original source The legendary Alexander Fleming, who famously discovered penicillin, once said 'never to neglect an extraordinary appearance or happening.' And the path of science often leads to just that. New research is turning the page in our understanding of harmful bacteria and how they turn on certain genes, causing disease in our bodies.
Published Unique marimo threatened by rising lake temperatures
(via sciencedaily.com) Original source Rising lake water temperatures threaten the survival of marimo, unique algal balls found only in cold lakes. Researchers clarified that the warmer it gets, the more the inward decomposition outpaces the outward growth of these life forms, making them increasingly fragile.
Published Fungal infection in the brain produces changes like those seen in Alzheimer's disease
(via sciencedaily.com) Original source Researchers have discovered how the fungus Candida albicans enters the brain, activates two separate mechanisms in brain cells that promote its clearance, and, important for the understanding of Alzheimer's disease development, generates amyloid beta (Ab)-like peptides, toxic protein fragments from the amyloid precursor protein that are considered to be at the center of the development of Alzheimer's disease.
Published New threat to Antarctic fur seals
(via sciencedaily.com) Original source Populations of charismatic animals have recovered since hunting ban but now struggle to find enough food.
Published Marine bacteria take a bite at plastic pollution
(via sciencedaily.com) Original source A bacterium found in the sea can degrade a plastic that otherwise resists microbial breakdown in marine environments.
Published The deep slumber of a hospital pathogen: Why infections with Acinetobacter baumannii can flare up again and again
(via sciencedaily.com) Original source A research team has discovered a fundamental mechanism that helps the dreaded hospital pathogen Acinetobacter baumannii to survive. This mechanism explains why the pathogen is difficult to eradicate in hospitals and why infections flare up again and again in patients: When living conditions become too unfavorable for the bacteria, they fall into a kind of slumber. In this state, conventional diagnostic methods can no longer detect them nor is it possible to kill them off. When living conditions improve again, they awaken from this 'deep sleep'.