Morphological characterization of Colletotrichum isolates associated to citrus anthracnose in Tuxpan, Veracruz
DOI:
https://doi.org/10.47808/revistabioagro.v7i2.29Keywords:
appressoria, conidial masses, diseases, plant pathogenAbstract
The objective of this work was to isolate and characterize morphologically Colletotrichum isolates responsible of citrus anthracnose in Tuxpan, Veracruz. Plant tissues with anthracnose symptoms were used to obtain Colletotrichum isolates, after that a code was assigned to each isolate. A bioassay arranged in a completely randomized design included 6 treatments and 4 repetitions was conducted to observe the development of each isolate. The analyzed variables were growth rate, colony and appressoria characteristics. Results showed that there were statistically significant differences between treatments: the isolate UVA1 showed the lowest growth rate (6.5 mm/day), with white mycelia and without spore masses; in the remaining isolates the growth rate was similar with values between 8.1 and 9.0 mm/day; the colony characteristics were similar with abundant mycelia and black sclerotial masses. Appressoria were formed between 24 and 72 h.
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Copyright (c) 2019 Raúl Allende-Molar, Sara Aída Alarcón-Pulido, María de la Luz Hernández-Sánchez, Julio César González-Cárdenas, Pablo Elorza Martínez
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