pathogenicity testing

Molecular Markers for Detecting a Wide Range of Trichoderma spp. that Might Potentially Cause Green Mold in Pleurotus eryngii

mycolabadmin

King oyster mushrooms are susceptible to green mold caused by various Trichoderma fungi, which significantly reduces crop yields. Researchers developed a quick DNA test that can detect these harmful fungi in mushroom farms before they cause major damage. The test is sensitive enough to identify the fungus even when present in very small amounts mixed with mushroom tissue. This new detection tool will help mushroom farmers monitor their crops and prevent costly contamination losses.

Identification of Avocado Fruit Disease Caused by Diaporthe phaseolorum and Colletotrichum fructicola in China

mycolabadmin

Researchers in China identified two fungal pathogens responsible for major avocado fruit diseases: Diaporthe phaseolorum causes fruit rot while Colletotrichum fructicola causes anthracnose. These diseases affect approximately 22% and 15% of avocado fruits respectively in Yunnan Province. This first-time identification of these pathogens on avocado provides growers with crucial information to implement targeted disease prevention strategies and protect their crops.

Identification, Characterization, Pathogenicity, and Fungicide Sensitivity of Postharvest Fungal Diseases in Culinary Melon from Northern Thailand

mycolabadmin

Researchers in Thailand identified four different fungi causing diseases in culinary melons after harvest. They found that three fungus species cause damage to stored melon fruits, significantly reducing their quality and value. By testing various fungicides, they determined which chemical treatments effectively stop each fungus type, helping farmers protect their crops and reduce losses.

Luobuma Leaf Spot Disease Caused by Alternaria tenuissima in China

mycolabadmin

Researchers in China identified a serious fungal disease affecting Luobuma plants (used for tea, medicine, and textiles) caused by the fungus Alternaria tenuissima. The disease caused leaf spots that spread rapidly, with infection rates reaching 95% in some plants. Testing showed that a fungicide called hymexazol was effective at controlling the disease, offering farmers a practical solution for protecting their crops.

First molecular confirmation of Lasiodiplodia theobromae causing grapevine trunk disease in southern Egypt

mycolabadmin

Researchers in Egypt identified a fungus called Lasiodiplodia theobromae as the cause of a serious disease affecting grapevines in the southern region. Using both microscopic examination and genetic analysis, they confirmed the fungus causes dark streaking in grape vine trunks, leading to branch death and decline. When they tested the fungus on grape tissues in the laboratory, it successfully infected all tested samples, showing it is a highly virulent pathogen. The findings suggest farmers need to use disease-resistant grape varieties and implement management strategies to prevent losses.

Morphological, molecular, and biological characterization of bulb rot pathogens in stored Lanzhou lily and the in vitro antifungal efficacy of three plant essential oils

mycolabadmin

Lanzhou lily is a valuable medicinal and food plant that loses 20-25% of its crop annually due to fungal rot during storage. Researchers identified the main culprit as a fungus called Fusarium oxysporum and found that natural essential oils from cinnamon, tea tree, and angelica plants can effectively inhibit this fungus’s growth. Cinnamon essential oil proved most effective and could serve as a natural alternative to chemical fungicides for protecting stored lily bulbs.

Exploring fungal pathogens to control the plant invasive Rubus niveus on Galapagos Island San Cristobal

mycolabadmin

Hill raspberry is a problematic invasive plant covering vast areas of the Galapagos Islands and harming native species. Researchers collected diseased Hill raspberry samples and identified five fungal pathogens that naturally infect the plant. These fungi have potential to be developed as biological control agents to manage the invasive species without using chemical herbicides. Further testing is needed to ensure these fungi only target Hill raspberry and do not harm other plants.

Clonostachys rosea, a Pathogen of Brown Rot in Gastrodia elata in China

mycolabadmin

Researchers in China identified a fungus called Clonostachys rosea as the cause of brown rot disease affecting Gastrodia elata (Tian Ma), an important medicinal orchid plant. The disease causes brown spots on tubers that expand and darken, significantly reducing crop yield and quality. The study involved detailed examination of the fungus under microscopes, genetic analysis, and confirmation that the fungus could cause disease in healthy plants. These findings will help farmers prevent and control this disease through proper soil management and selection of healthy seed tubers.

Apple replant disease: unraveling the fungal enigma hidden in the rhizosphere

mycolabadmin

Apple orchards that are replanted in the same location often develop a disease that stunts growth and can kill young trees. Scientists discovered that harmful fungi, especially Fusarium species, grow excessively in the soil around diseased trees. These harmful fungi appear to be the main culprits behind the disease. The study identified specific fungicides that can control these pathogenic fungi, offering hope for preventing the disease in future plantings.

Fusarium Species Infecting Greenhouse-Grown Cannabis (Cannabis sativa) Plants Show Potential for Mycotoxin Production in Inoculated Inflorescences and from Natural Inoculum Sources

mycolabadmin

Researchers found that certain fungi called Fusarium species can infect cannabis flowers growing in greenhouses and produce harmful toxins called mycotoxins. These toxins, which can accumulate in dried cannabis buds, come from both direct infection and from nearby tall fescue grass plants growing outside the greenhouse. The study shows that high humidity conditions in greenhouses can promote fungal growth and toxin production, potentially affecting cannabis safety. Different cannabis varieties showed varying levels of toxin accumulation despite similar fungal infection rates.

Research Keyword: pathogenicity testing