Publications by authors named "Kuan Yu Zheng"

Article Synopsis
  • Polygonatum kingianum is a Chinese herbal medicine that experienced leaf damage and plant mortality in 2023 due to a disease affecting 10-20% of plants in nurseries in Yunnan Province.
  • Researchers collected diseased leaf samples, sterilized them, and cultured them on a specific medium to isolate 13 fungal strains, primarily identifying them as strains of the Alternaria genus.
  • Further analysis was conducted on one particular strain, HJ-A1, including genomic DNA extraction and amplification of specific gene regions to better understand its characteristics and potential impact on the plant.
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Chilli pepper is an important economic crop and virus diseases are constraints on its production. In 2018, disease surveys were conducted at a 15-ha chilli pepper plantation in Dehong, southwest of Yunnan Province, China. Throughout the chilli pepper growing season from March to September, pepper plants developed three different virus-like symptoms on leaves, including mosaic, yellow mottle and shrinkage (Fig.

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