Alternaria tenuissima Causing Leaf Necrosis on Polygonatum cyrtonema in Jinzhai, China
نویسندگان
چکیده
منابع مشابه
First Report of Leaf Spot Caused by Alternaria tenuissima on Black Chokeberry (Aronia melanocarpa) in Korea
In July 2015, diseased leaves of black chokeberry (Aronia melanocarpa) were observed in Danyang and Gochang, Korea. The symptoms appeared as circular or irregular brown leaf spots, from which Alternaria tenuissima was isolated. The isolates were cultured on potato dextrose agar, and their morphological characteristics were observed under a light microscope. The colonies were whitish to ash colo...
متن کاملPilot-plant production of protease by Alternaria tenuissima.
Agar slants of a selected Alternaria tenuissima strain were illuminated to give conidia suitable for further propagation. For production of protease with an optimal caseolytic activity in the region of pH 8 to 10, the fungus was cultivated in steel fermentors with 6- and 60-liter working capacity. Maximal activity, 1.5 enzyme units per liter, was attained in a medium based on liver after about ...
متن کاملFirst Record of Alternaria simsimi Causing Leaf Spot on Sesame (Sesamum indicum L.) in Korea
Leaf spot disease was observed in sesame (Sesamum indicum L.) during 2009 and 2010 in Korea. The pathogen was identified as Alternaria simsimi based on morphological and cultural characteristics. The morphological identification was well supported by phylogenetic analysis of the ribosomal DNA-internal transcribed spacer region. A. simsimi isolates caused spot symptoms on leaves and stems of ses...
متن کاملShort CommuniCation CHARACTERIZATION OF ALTERNARIA SPECIES ASSOCIATED WITH WATERMELON LEAF BLIGHT IN BEIJING MUNICIPALITY OF CHINA
Leaf blight symptoms consisting of dark brown lesions were observed on watermelon plants in seven districts or counties in Beijing municipality of China. A total of 64 Alternaria isolates were recovered and identified based on morphological characters and sequence analyses of rDNAITS regions and histone 3 genes. Amongst these isolates, Alternaria tenuissima was the most prevalent species repres...
متن کاملTenuazonic acid production by Alternaria alternata and Alternaria tenuissima isolated from cotton.
Cultures of Alternaria alternata (three isolates) and Alternaria tenuissima (three isolates) obtained from cottonseeds and bolls were toxigenic when cultured on various laboratory media. A mycotoxin was isolated and identified as tenuazonic acid by using solvent partition, thin-layer chromatography, and instrument analyses. Toxicity was monitored with brine shrimp and chicken embryo bioassays. ...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2020
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-08-19-1615-pdn