pathogenicity testing

Identification and Characterization of Fusarium incarnatum Causing Leaf Spot and Fruit Rot on Luffa in China

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In 2022, luffa farmers in China faced a serious fungal disease causing leaves and fruits to rot. Scientists identified the culprit as Fusarium incarnatum fungus. They also discovered that a beneficial soil bacterium called Bacillus velezensis can fight this fungus and help plants grow better, offering farmers a natural alternative to chemical fungicides.

Pomegranate Woody Mycobiota Associated with Wood Decay

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Pomegranate trees in Italy are suffering from a wood disease that causes cankers and browning of the wood, leading to plant death and crop loss. Researchers identified multiple fungal species responsible for this disease, with Neofusicoccum parvum and Diaporthe species being the main culprits. Cold winter temperatures appear to weaken trees, making them susceptible to these fungal infections. Using advanced DNA analysis along with traditional methods, scientists confirmed which fungi cause the most damage and how the disease develops.

Diaporthe foeniculina and D. eres, in addition to D. ampelina, may cause Phomopsis cane and leaf spot disease in grapevine

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Researchers found that three different fungal species, not just one, cause a disease called Phomopsis cane and leaf spot in grapevines grown in Southern Europe. While Diaporthe ampelina remains the primary culprit, two other species (D. eres and D. foeniculina) can also cause the same disease symptoms. Interestingly, these different fungi prefer different temperatures for growth, which means farmers may need to adjust their disease management strategies based on which species is present in their vineyards.

Emergence of Fusarium incarnatum and Fusarium avenaceum in wilt affected solanaceous crops of the Northern Himalayas

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Researchers in Kashmir identified two fungal species, Fusarium incarnatum and Fusarium avenaceum, causing wilt disease in important vegetable crops like tomatoes, brinjals, and chili peppers. These pathogens cause yellowing of leaves, wilting, and death of plants, resulting in significant crop losses. This is the first time these particular fungi have been confirmed as wilt pathogens in these vegetables in India. The study emphasizes the need for better management strategies to protect these crops from fungal infections.

Three New Records of Pathogens Causing Stem Blight on Vaccinium corymbosum in China

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Researchers in China identified three new fungal species causing stem blight disease in blueberry crops. These fungi infect blueberry stems, causing brown lesions that kill the shoots and leaves. Laboratory tests confirmed all three fungi can cause the disease, with one species being particularly aggressive. This research helps farmers understand and manage this economically important disease that damages 10-25% of China’s blueberry crops.

Didymellaceae species associated with tea plant (Camellia sinensis) in China

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Researchers identified 25 different fungal species from the Didymellaceae family that can infect tea plant leaves in China, including six previously unknown species. By testing how harmful these fungi are to tea plants, they found that some species cause severe damage while others are harmless. These findings help tea farmers understand and manage leaf blight disease that threatens tea crop production.

Morphological and molecular identification of Schizophyllum commune causing storage bulb rot disease of Lanzhou edible lily in China and its biological characteristics

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Researchers in China identified Schizophyllum commune as a fungal pathogen causing rot in stored edible lily bulbs, marking the first report of this disease. The fungus was identified using microscopic examination and genetic sequencing, and was shown to cause 100% infection on lily bulbs. The study found that the fungus grows best at 30°C with high humidity and darkness, providing important information for controlling this storage disease that causes significant crop losses.

Characterization of Setophoma henanensis sp. Nov., causing root rot on peanut

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Researchers in China discovered a new fungus called Setophoma henanensis that causes root rot in peanuts. This fungus was found in peanut fields across Henan Province and can also infect other crops like corn, wheat, and peppers. The good news is that the fungus is sensitive to commonly used fungicides, which can help farmers control the disease.

Characterization of Setophoma henanensis sp. Nov., causing root rot on peanut

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Scientists discovered a new fungus called Setophoma henanensis that causes root rot disease in peanut plants in China. This fungus can also infect corn, wheat, peppers, and onions, making it a concern for farmers. The good news is that existing fungicides used to treat peanut diseases are still effective against this new pathogen.

Diversity of Fungal Genera Associated with Shot-Hole Disease in Cherry Blossoms Across Korea

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Cherry blossom trees in Korea are commonly affected by shot-hole disease, which causes holes in leaves and reduces flowering. Researchers found that four different fungi cause this disease, not just one as previously thought: Alternaria, Diaporthe, Epicoccum, and Botryosphaeria. The types of fungi vary by region and between urban and rural areas, suggesting different management strategies may be needed in different locations.

Research Topic: pathogenicity testing