Article (Scientific journals)
Fungal Diversity Detected by ITS-5.8S from Coffea arabica Leaves Infected by Rust (Hemileia vastatrix) in Southern Ecuador
Cruz, Darío; Jaramillo Riofrio, Andrea Carolina; Herrera, Paulo et al.
2024In Diversity, 16 (10), p. 633
Peer Reviewed verified by ORBi
 

Files


Full Text
diversity-16-00633.pdf
Author postprint (6.65 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Ascomycete; Basidiomycete; coffee rust; fungal diversity; mycoparasites; OTUs; Ecology; Ecological Modeling; Agricultural and Biological Sciences (miscellaneous); Nature and Landscape Conservation
Abstract :
[en] Coffee production worldwide is affected by the pathogen Hemileia vastatrix, which causes the “coffee rust” disease and may be associated with other fungi. Ecuador lacks studies on fungal diversity associated with coffee rust, which could potentially control or escalate pathogen activity. Using the ITS-5.8S nrDNA region, we randomly detected a small preliminary fungi diversity related to coffee rust in Ecuador, which we report here for the first time. Ten coffee farms (four in Loja, three in Calvas, and three in Quilanga) from the Loja Province were sampled to analyze the genetic diversity of the pathogen Hemileia vastatrix in rust lesions on coffee leaves. A high number of selected sequences (Sanger sequencing) showed the presence of 48 OTUs (Operational Taxonomic Units) or “hypothetical species” of Ascomycetes and Basidiomycetes distributed across all the sampled farms. The genera Akanthomyces, Ceramothyrium, Cladosporium, Didymella, Fusarium, Mycosphaerella, Neoceratosperma, and Trichothecium of Ascomycetes, as well as Bulleribasidium, Hannaella, and Meira of Basidiomycetes, were the most abundant. To avoid taxonomic conflict, some sequences were placed into Capnodiales (Ascomycetes) and Tremelalles (Basidiomycetes) without a genus definition. A new phylogenetic group of sequences is considered Incertae Sedis from Basidiomycetes. Additionally, morphospecies of Akanthomyces (synonymous with some Lecanicillium species) and Colletotrichum were observed macroscopically and microscopically growing closely with rust. Most of the OTUs probably correspond to rust mycoparasites, as previously reported in the literature. However, this study is limited by the number of sequences analyzed phylogenetically, which may hinder the discovery of significant insights. Future studies are needed to determine whether this preliminary fungal diversity is associated with the rust fungus or corresponds to ubiquitous airborne fungi. Furthermore, research into the function of these species may reveal whether they promote rust pathogenicity or enhance plant responses by activating resistance mechanisms.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Cruz, Darío ;  MS2E Research Group, Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, Loja, Ecuador ; Instituto Nacional de Biodiversidad INABIO, Quito, Ecuador
Jaramillo Riofrio, Andrea Carolina  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Instituto Nacional de Biodiversidad INABIO, Quito, Ecuador ; MS2E Research Group, Departamento de Ciencias de la Salud, Universidad Técnica Particular de Loja, Loja, Ecuador
Herrera, Paulo ;  MS2E Research Group, Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, Loja, Ecuador
Aguinsaca, Ruth;  Facultad Agropecuaria y de Recursos Naturales Renovables, Universidad Nacional de Loja, Loja, Ecuador
Chamba, Marianela;  Programa de Posgrado Biotecnología Agropecuaria, Universidad Técnica Particular de Loja, Loja, Ecuador
Language :
English
Title :
Fungal Diversity Detected by ITS-5.8S from Coffea arabica Leaves Infected by Rust (Hemileia vastatrix) in Southern Ecuador
Publication date :
October 2024
Journal title :
Diversity
eISSN :
1424-2818
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI)
Volume :
16
Issue :
10
Pages :
633
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
UTPL - Universidad Técnica Particular de Loja
Funding text :
This research was funded by the Vicerrectorado de Investigación of the Universidad Técnica Particular de Loja with a grant of two thousand US dollars ($2000).
Available on ORBi :
since 16 January 2025

Statistics


Number of views
7 (2 by ULiège)
Number of downloads
2 (0 by ULiège)

Scopus citations®
 
0
Scopus citations®
without self-citations
0
OpenCitations
 
0
OpenAlex citations
 
0

Bibliography


Similar publications



Contact ORBi