What's in my Pot? Six Colletotrichum Species Causing Anthracnose in Brazilian Pecan Orchards.

Autor: Poletto T; Universidade Federal de Santa Maria, Santa Maria, RS, Brazil. talespoletto@gmail.com.; Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil. talespoletto@gmail.com., Fritsche Y; Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil., Fantinel VS; Universidade Federal de Santa Maria, Santa Maria, RS, Brazil., Muniz MFB; Universidade Federal de Santa Maria, Santa Maria, RS, Brazil., Harakava R; Instituto Biológico de São Paulo, São Paulo, SP, Brazil., Stefenon VM; Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil.
Jazyk: angličtina
Zdroj: Current microbiology [Curr Microbiol] 2024 Feb 10; Vol. 81 (4), pp. 94. Date of Electronic Publication: 2024 Feb 10.
DOI: 10.1007/s00284-024-03622-y
Abstrakt: Pecan (Carya illinoinensis) is one important exotic forest crop cultivated in South America, specifically in Brazil, Uruguay, and Argentina. However, diseases such as anthracnose, favored by high humidity conditions and high summer temperatures, make its cultivation difficult, causing important loss to pecan farmers. This study used morphological and molecular approaches to identify the Colletotrichum species causing anthracnose in pecan plantations in Southern Brazil. The isolates obtained from pecan fruits with anthracnose symptoms were grouped through quantitative morphological characteristics into three distinct morphotypes. Molecular analysis of nuclear genes allowed the identification of six species of Colletotrichum causing anthracnose in pecan: C. nymphaeae, C. fioriniae, C. gloeosporioides, C. siamense, C. kahawae, and C. karsti. Three of these species are reported for the first time as causal agents of anthracnose in pecan. Therefore, these results provide an important basis for the adoption and/or development of anthracnose management strategies in pecan orchards cultivated in southern Brazil and neighboring countries.
(© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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