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Biotechnology to the rescue of Brussels sprouts

A team of European researchers has identified multiple genes that are resistant to Albugo candida, a disease causing white rust in Brassicaceae family plants. The discovery was made using Arabidopsis thaliana as a model plant and has the potential to design new genetic improvement strategies for different cultivated crop species.

SourceUniversity of Córdoba·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2019

Beech trees are dying, and nobody's sure why

A new disease is killing beech trees in Ohio, Pennsylvania, and Ontario, Canada, causing dark-green bands on leaves and leading to tree death. Researchers are searching for a microbe or insect cause, using molecular techniques to compare DNA and RNA from diseased and healthy trees.

SourceOhio State University·JournalForest Pathology·DateJan 9, 2019

Fungi cause brain infection and impair memory in mice

Researchers found that Candida albicans can cross the blood-brain barrier, triggering an inflammatory response and forming granuloma-type structures, leading to temporary memory impairments in mice. The findings also suggest a possible link between fungal infections and chronic neurodegenerative disorders like Alzheimer's disease.

SourceBaylor College of Medicine·JournalNature Communications·DateJan 4, 2019

New insights in rust resistance in wheat

Researchers from Aarhus University have made significant breakthroughs in understanding the mechanisms of yellow rust resistance in wheat. The study found that Yr15 gene produces defence responses early in infection, providing a crucial piece of information for developing disease-resistant varieties.

SourceAarhus University·JournalNature Communications·DateDec 5, 2018

Gut fungus exacerbates asthma in antibiotic-treated mice

A non-pathogenic fungus can expand in the intestines of antibiotic-treated mice and enhance the severity of allergic airways disease. The study suggests that alterations in gut microbiota induced by intestinal fungi might be a previously unrecognized but potentially important risk factor for patients with asthma.

SourcePLOS·JournalPLOS Pathogens·DateSep 20, 2018

Yeast species used in food industry causes disease in humans

Research finds Candida krusei and Pichia kudriavzevii are genetically identical, both causing significant morbidity and mortality in immunocompromised patients. The study highlights the need for caution when using drug-resistant yeast strains in biotechnology and food applications.

SourcePLOS·JournalPLOS Pathogens·DateJul 19, 2018

Study investigates the reproductive habits of the fungus that causes athlete's foot

A recent study published in the journal Genetics found that the fungus Trichophyton rubrum exhibits asexual reproduction as its primary method of reproduction. The research suggests that mating between individuals is rare and requires highly specific conditions, resulting in low genetic variability within the population.

Climate change forced zombie ant fungi to adapt

Researchers found that climate change led to a shift in the host choice of zombie ant fungi, from leaves to twigs and bark, as tropical forests transitioned to temperate areas. The study, published in Evolution, reveals that this adaptation occurred independently in different locations around the world.

SourcePenn State·JournalEvolution·DateMay 29, 2018

Social context matters in spread of disease

Researchers found that the sex composition and mating dynamics of a fruit fly community significantly impact disease transmission rates. Males faced a greater risk of infection when outnumbered by females, highlighting the importance of social context in disease spread.

SourceRice University·JournalBehavioral Ecology·DateMay 7, 2018

The macabre world of mind-controlling parasites

Parasites have evolved to 'hack' their host's nervous system, controlling behavior and decision-making. Researchers explore the mechanisms involved, discovering compounds that act on neural circuitry, offering insights into neural control of animal behavior.

SourceFrontiers·JournalFrontiers in Psychology·DateMay 1, 2018

An unexpected discovery in a central line

A 6-year-old boy with intestinal pseudo-obstruction and chronic health issues develops a rare fungal infection Mucor velutinosus in his central line. He is successfully treated with an antifungal drug, highlighting the importance of thorough investigation and good antibiotic stewardship.

SourceChildren's National Hospital·JournalJournal of the Pediatric Infectious Diseases Society·DateApr 12, 2018

What stops mass extinctions?

Researchers found that frogs surviving the chytridiomycosis epidemic developed stronger defenses against the fungus, inhibiting its growth. However, captive breeding programs face challenges in replicating these findings, highlighting the need for further research on disease dynamics and host resistance.

Invasion of the body-snatching fungus

Researchers have documented a strange relationship between periodical cicadas and a fungus called Massospora cicadina that hijacks their behavior and causes them to spread the fungus' spores. The infected cicadas exhibit unusual behaviors, such as wing flicking and attempting to mate with uninfected females.

The battle for spinach

Washington State University researchers are working on developing resistant spinach varieties against Fusarium wilt, a devastating disease that has been crippling farmers' crops in the Pacific Northwest. The team is testing over 600 varieties of spinach and studying their DNA to find genetic markers that reveal natural resistance.

Another blow to fungal infection

Scientists have isolated a natural resistance gene, Stb6, that confers protection against Septoria tritici blotch (STB), a major threat to wheat production. The discovery holds promise for deciphering other resistance genes and developing a natural barrier to infection.

SourceRothamsted Research·JournalNature Genetics·DateFeb 12, 2018

How did a deadly tropical fungus get to the temperate environs of the Pacific Northwest?

A new study suggests that the opening of the Panama Canal in 1914 may have led to the introduction of a deadly fungal disease, Cryptococcus gattii, into the Pacific Northwest region. The fungus, native to tropical regions, has caused outbreaks in Washington and Oregon, with symptoms including cough, shortness of breath, and confusion.

Northern corn leaf blight genes identified in new study

Scientists have identified two fungal genes that cause disease in corn, which could lead to the development of more resistant hybrid varieties. The discovery provides insight into how the fungus outsmarts corn's defenses and may enable researchers to create plant varieties that can detect and resist specific pathogens.