Articles tagged with Fungal Pathogens
The USDA Forest Service has named the tree-killing fungus responsible for 'laurel wilt', causing devastating disease in redbay and other laurel species. Lead author Tom Harrington and co-author Stephen Fraedrich unveiled the name, Raffaelea lauricola, after publishing an article in Mycotaxon journal.
Researchers found that disabling the ZFR1 gene reduces toxin production by 82% in Fusarium verticillioides on corn kernels. The study identified a specific sugar transporter, FST1, necessary for FB1 production, which acts as a molecular sensor for toxin creation.
A new study identifies autophagy as a crucial virulence-associated trait for Cryptococcus neoformans, a fungal pathogen that infects immunocompromised individuals. Autophagy helps the pathogen survive during nutrient scarcity and is essential for its virulence.
Researchers have identified same-sex mating in nature through analysis of natural hybrids and laboratory observations, shedding light on the evolution of Cryptococcus neoformans population structure. The study provides new insights into the genetic and environmental factors driving the current population's sex-ratio imbalance.
Researchers sequence Fusarium graminearum genome to understand its interaction with plants and develop resistance. The study aims to identify genes that enable the fungus to cause disease and produce toxins, which can be fatal to humans and livestock.
Researchers have sequenced the genome of Fusarium graminearum, a fungal plant pathogen that causes devastating blight in wheat and barley crops. The study reveals unstable regions of the genome where disease-causing genes reside, providing insights into the fungus's ability to evolve and adapt.
A new genetic analysis suggests that the frog-killing fungus, Batrachochytrium dendrobatidis, may be a greater threat to mountain yellow-legged frogs due to its ability to spread over long distances and persist in the environment through sexual reproduction. This could make it harder to save the frogs from extinction.
James Kronstad's research focuses on smut fungi, a group of pathogens that infect crop plants. He discovered the method used by these fungi to invade plants and shut down seed production, paving the way for the development of targeted fungicides.
A team of researchers has discovered a population of the painted frog, considered extinct since 1995, in Colombia's deserts. The finding offers hope that other species can survive the chytridiomycosis fungus and highlights the need for urgent conservation measures.
A team of scientists from the University of Wisconsin-Madison has discovered a master molecular sensor embedded in spores of six related fungi that triggers their transformation into pathogenic yeasts. This finding could lead to new treatments and possibly vaccines for diseases caused by these microbes.
A new method for targeted gene disruption has been developed for the filamentous fungus A. brassicicola, allowing for high-throughput identification of genes and their functions. This breakthrough enables researchers to dissect the pathogen's genome and establish the function of individual genes in disease development.
Two studies found that CO2 senses are crucial for fungi C. albicans and C. neoformans to adapt to different environments. The enzymes adenylyl cyclases mediate CO2-dependent filamentation and capsule biosynthesis in these pathogens.
Researchers found a double line of defence in plants, with PEN2 enzyme releasing fungicidal substances and another mechanism involving EDS1, PAD4 and SAG101 proteins. This multi-step defence system is crucial for plant durability against parasite attacks.
A new study in PLOS Pathogens suggests that Mycobacterium tuberculosis and its close relatives recently emerged from a much more ancient bacterial species, possibly as old as 3 million years. This discovery may have significant implications for improving diagnosis and treatment of the disease.
A new study in PLoS Pathogens found that HIV's Vif protein exhibits natural variation, which can impact its ability to replicate. This variability may accelerate the evolution of the virus by partially or fully inactivating host defensive proteins.
Millions of wild animals pass through markets each year, increasing the risk of disease transmission. The study highlights the need to regulate and eliminate the global wildlife trade to prevent the spread of diseases among humans, domestic animals, and ecosystems.
Researchers identified an enzyme called MAP kinase as a crucial player in the fungus' attack, triggering cellular communication necessary for fungal invasion. Understanding this process is essential to develop new fungicides or resistant rice plants.
Scientists at Ohio State University have discovered a gene called Avr3a that triggers the blight that destroyed Ireland's potato crops in the 19th century. The gene is found in the pathogen Phytophthora infestans, which causes massive agricultural damage worldwide.
Histatin binds to TRK1p membrane protein, regulating potassium ion flow and killing fungal cells by preventing ion regulation. The finding paves the way for developing a more effective Candidiasis drug.
Researchers have sequenced the genomes of two closely related strains of Cryptococcus neoformans, a fungus that causes life-threatening infections in people with impaired immunity. The study revealed surprising similarities between the two strains, despite their different levels of virulence.
Researchers in Australia have discovered that frog populations of critically endangered species can persist with stable fungal infections, challenging the role of a deadly disease in their declines. The study found no evidence that survival differed between infected and uninfected frogs, suggesting coexistence rather than devastating i...
A recent genetic analysis found a viral strain linked to the decline of amphibian populations in the US, which may have been introduced through live bait and infected salamanders. The study suggests that emerging diseases are having a major effect on ecosystems globally.
Researchers found evidence of Heterobasidion annosum pathogen originating from eastern North America, likely hitching a ride in untreated lumber from infected trees. The pathogen has since established itself in the Presidential Estate of Castelporziano, killing large swaths of stone pine trees.
Researchers at the University of Wisconsin-Madison have identified a gene that protects potatoes from late blight, a fungal pathogen responsible for the Irish potato famine. The discovery holds significant potential to save farmers hundreds of millions of dollars and benefit the environment by reducing toxic chemical applications.
Researchers are investigating more virulent forms of fungi to improve understanding of how fungal pathogens interact with the immune system. Studies have shown that genetic mutations can lead to increased virulence in yeasts like Candida albicans, highlighting the need for new anti-fungal drugs.
Potato late blight, a mutated funguslike pathogen, is affecting global potato production, causing brownish lesions that turn healthy plants into mush. The disease has spread globally, with Russia experiencing devastating yields, and experts warn of dire consequences for food security.
A K-State microbiologist has developed a new instrument called the PULSIFIER to detect bacteria and pathogens in food samples without breaking them down. The device shakes pathogens into the liquid instead of pulverizing the food, resulting in cleaner samples that are easier to analyze.
A new water mold fungus, Sudden Oak Death, is killing oaks in California and poses a threat to Eastern US forests. The fungus can spread through plant transportation or infected mud, and has already killed over 100,000 trees.
Plant cells employ a sophisticated immune system with a thick cell wall and Leucine-rich repeat receptor kinase that detects bacterial flagellin, triggering gene expression and immune response. The discovery sheds light on plant resistance to pathogens and paves the way for engineering pathogen-resistant crops.
Researchers at AgraQuest have developed a natural pesticide called Serenade that targets various fungal and bacterial diseases. It is highly effective and nontoxic to humans, birds, fish, and beneficial insects, making it suitable for integrated pest management systems.
Researchers have uncovered a biological program that prevents the development of pathogenic fungi under nitrogen-poor conditions. The unfolded protein response (UPR) mediates this morphological response and can be targeted to develop new anti-fungal therapies.
Scientists have developed a live recombinant vaccine that protects against a fungal infection in mice, using recombinant DNA technology. The vaccine is safer than traditional live vaccines and more effective than 'killed' vaccines, offering a promising approach to protect against rising fungal diseases.
Researchers have identified a gene that allows histoplasma to infect and persist in humans. The discovery uses a novel technique that may be valuable in finding drug targets for this disease-causing fungus and others.
Scientists at University of Illinois have developed a new PCR-based detection method for soybean fungus, detecting even minute traces of the disease-causing strain in soil and plant tissues. The method shows high sensitivity and accuracy, allowing for precise identification of the pathogen and its implications on crop yields.
Researchers at Michigan Tech are transferring altered genes into fungi to facilitate nutrient flow through tree roots, helping trees grow faster and live healthier lives. The fungus provides a protective coating around the tree's roots, preventing insect pests and diseases from attacking.
A NASA-funded study on climate change and amphibian declines found no significant correlation between the two. However, researchers suggest that disease may be indirectly influenced by climate and environmental factors.
Scientists studying amphibian decline are exploring the role of pathogens like iridovirus and chytrid fungus in causing mass extinctions. The project, funded by a $3 million grant, aims to develop an integrative approach combining expertise from various fields.
A Purdue University researcher has discovered a natural plant toxin that can stop invading fungi by triggering programmed cell death in fungal cells. This finding could lead to the development of genetically engineered crops that are resistant to fungal infections, reducing the need for fungicides and saving farmers money.
Researchers have constructed the first complete physical map of an M. grisea chromosome, providing a crucial step towards understanding and combating the devastating effects of the rice blast fungus on global food supplies.
A Kansas State University food microbiologist has developed a method to kill E. coli bacteria on meat using microwave and acid treatments. The approach involves dipping the meat in an 80 degrees Celsius solution of lactic acid for a few seconds, followed by short pulses of microwave treatment.
A new protein in Candida albicans allows the fungus to adhere strongly to mucosal cells, facilitating its growth and proliferation. The discovery could lead to the development of inhibitors to prevent or treat Candidiasis infections.
Plant cells respond to fungal invasion by generating reactive oxygen intermediates, ion fluxes, and changes in gene activity. Gentle mechanical stimulation mimics this effect, suggesting physical contact is sufficient for triggering the defense response.
A new study has uncovered the genetic wiring diagram underlying Candida's infectiousness, revealing two parallel genetic pathways that account for its ability to filament. Inactivating both pathways renders Candida harmless to macrophages and mice, offering new avenues for treating fungal infections.
Duke researchers found an existing class of drugs, cyclosporin and FK506, effectively stops the growth of the fungus Cryptococcus neoformans. The compounds are now being tested in animals with fungal infections.
Researchers have discovered crucial proteins called septins in filamentous fungi, which could serve as a target for antifungal agents. The finding may help develop new treatments for fungal diseases, which have dramatically increased in recent years.
Dr. Daniel Fung's work on rapid methods in food safety has bridged the gap between clinical microbiology and food microbiology, enabling faster testing for pathogens like Salmonella and E. coli. The goal is to provide real-time results within a day, reducing waiting periods from seven days, which were once common.