Publications by authors named "Sergio Ayvar Serna"

Article Synopsis
  • - The text discusses the prevalence of white mold disease affecting Brussels sprouts in Tonatico, Mexico, with a reported incidence of 20-40% and symptoms including necrotic lesions and the production of white mycelium and black sclerotia.
  • - Fungal isolation involved surface sterilization of symptomatic stems, resulting in the growth of white, fluffy colonies and small black sclerotia; six isolates were purified for further testing.
  • - Molecular analysis confirmed identity through genomic sequencing, showing 100% match with existing sequences in GenBank, and the isolates were classified in a specific clade, with pathogenicity tests ongoing to assess their impact on healthy Brussels sprouts.
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Bean (Phaseolus vulgaris) is the second most important crop in Mexico after corn due to the high consumption of beans in all regions of the country. In the winter (January 2016), bean plants showing wilting, root discoloration and necrosis were observed, with an incidence of approximately 30% in different fields (<1 ha) in Tecoanapa, Guerrero State, Mexico. Symptomatic fine roots (<2 mm) were cut into 0.

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Mexico is the largest avocado () producer and exporter in the world. In January of 2019, typical symptoms of fruit anthracnose were observed on approximately 90% of avocado trees in backyards localized in Leonardo Bravo municipality in Guerrero, Mexico. Lesions on avocado fruits were circular, necrotic, and sunken, whereas the mesocarp showed a soft rot with dark brown discoloration.

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Fruit rot is the principal phytopathological problem of pipiana pumpkin ( Huber) in the state of Guerrero. The aims of this research were to 1) identify the causal agent of southern blight on pumpkin fruits by morphological, pathogenic, and molecular analysis (ITS1, 5.8S, ITS2); 2) evaluate spp.

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