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Keywords = gigasporum species complex

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19 pages, 11295 KB  
Article
Diversity and Pathogenicity of Colletotrichum Species Causing Coffee Anthracnose in China
by Ying Lu, Weiyi Zhang, Xiaoli Hu, Chunping He, Yanqiong Liang, Xing Huang, Kexian Yi and Weihuai Wu
Microorganisms 2025, 13(3), 512; https://doi.org/10.3390/microorganisms13030512 - 26 Feb 2025
Cited by 12 | Viewed by 4897
Abstract
Coffee is a significant traded commodity for developing countries. Among the various diseases affecting coffee, anthracnose caused by Colletotrichum spp. has re-emerged as a major constraint on global coffee production. To better understand the Colletotrichum species complex associated with coffee anthracnose, we characterized [...] Read more.
Coffee is a significant traded commodity for developing countries. Among the various diseases affecting coffee, anthracnose caused by Colletotrichum spp. has re-emerged as a major constraint on global coffee production. To better understand the Colletotrichum species complex associated with coffee anthracnose, we characterized Colletotrichum spp. using a combination of phenotypic traits, MAT1-2 (ApMat) gene analysis, multi-locus phylogenetic (ITS, ACT, CHS-1, and GAPDH), and pathogenicity assays. A total of 74 Colletotrichum isolates were collected from coffee plants exhibiting anthracnose symptoms across nine coffee plantations in China. Among these, 55 isolates were identified as the C. gloeosporioides species complex using the ApMat locus, while the remaining 19 isolates were identified through multi-locus phylogenetic analyses. The isolates represented seven Colletotrichum species from five species complexes: C. gloeosporioides (including C. siamense, C. nupharicola, and C. theobromicola), C. boninens (C. karstii), C. gigasporum (C. gigasporum), C. orchidearum (C. cliviicola), and C. magnum (C. brevisporum). This is the first report of C. nupharicola and C. cliviicola causing coffee anthracnose worldwide, and the first report of C. nupharicola in China. Pathogenicity tests confirmed that all seven species were capable of infecting coffee leaves. This research enhances our understanding of the Colletotrichum species responsible for coffee anthracnose, and provides valuable insights for developing effective disease management strategies. Full article
(This article belongs to the Special Issue Advancing Microbial Taxonomy and Genomics: Bridging Diversity and Functionality)
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11 pages, 2631 KB  
Article
Description and Pathogenicity of Colletotrichum kapreanum sp. nov, a Cherelle Wilt Pathogen Belonging to the Gigasporum Species Complex
by Yoshiki Takata, Celynne Ocampo-Padilla, Mike Andre C. Malonzo, Dan Charlie Joy Camara Pangilinan, Shunsuke Nozawa and Kyoko Watanabe
J. Fungi 2024, 10(3), 204; https://doi.org/10.3390/jof10030204 - 8 Mar 2024
Cited by 1 | Viewed by 3779
Abstract
Similar to cacao pod rot, cherelle wilt decreases production from cacao fields. Among all known fungal pathogens of the cacao, Colletotrichum spp. are common infectious agents that affect the cherelles and pods of cacao; thus, cacao diseases are often classified by stage. Therefore, [...] Read more.
Similar to cacao pod rot, cherelle wilt decreases production from cacao fields. Among all known fungal pathogens of the cacao, Colletotrichum spp. are common infectious agents that affect the cherelles and pods of cacao; thus, cacao diseases are often classified by stage. Therefore, knowing whether these pathogens are common in both fruit stages is necessary for implementing disease control measures. Symptoms of cherelle wilt were found in cacao plants in Pangasinan, Philippines, in 2022. The fungal strain obtained from the lesion was found to be pathogenic towards cherelles, but not towards pods. The strain was classified as an unknown species belonging to the gigasporum species complex, based on the morphological and molecular phylogenetic analyses of ITS, GAPDH, CHS1, ACT, and TUB2. We propose Colletotrichum kapreanum sp. nov. as a causal agent of cacao cherelle wilt, but not pod rot. Full article
(This article belongs to the Section Fungal Pathogenesis and Disease Control)
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18 pages, 3525 KB  
Article
Characterization of Colletotrichum Species Infecting Litchi in Hainan, China
by Xueren Cao, Fang Li, Huan Xu, Huanling Li, Shujun Wang, Guo Wang, Jonathan S. West and Jiabao Wang
J. Fungi 2023, 9(11), 1042; https://doi.org/10.3390/jof9111042 - 24 Oct 2023
Cited by 13 | Viewed by 3369
Abstract
Litchi (Litchi chinensis) is an evergreen fruit tree grown in subtropical and tropical countries. China accounts for 71.5% of the total litchi cultivated area in the world. Anthracnose disease caused by Colletotrichum species is one of the most important diseases of [...] Read more.
Litchi (Litchi chinensis) is an evergreen fruit tree grown in subtropical and tropical countries. China accounts for 71.5% of the total litchi cultivated area in the world. Anthracnose disease caused by Colletotrichum species is one of the most important diseases of litchi in China. In this study, the causal pathogens of litchi anthracnose in Hainan, China, were determined using phylogenetic and morphological analyses. The results identified eight Colletotrichum species from four species complexes, including a proposed new species. These were C. karsti from the C. boninense species complex; C. gigasporum and the proposed new species C. danzhouense from the C. gigasporum species complex; C. arecicola, C. fructicola species complex; C. arecicola, C. fructicola and C. siamense from the C. gloeosporioides species complex; and C. musicola and C. plurivorum from the C. orchidearum species complex. Pathogenicity tests showed that all eight species could infect litchi leaves using a wound inoculation method, although the pathogenicity was different in different species. To the best of our knowledge, the present study is the first report that identifies C. arecicola, C. danzhouense, C. gigasporum and C. musicola as etiological agents of litchi anthracnose. Full article
(This article belongs to the Special Issue Fungal Plant Pathogens)
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20 pages, 3365 KB  
Review
Colletotrichum Species Complexes Associated with Crops in Northern South America: A Review
by Marcela Guevara-Suarez, Martha Cárdenas, Pedro Jiménez, Lucía Afanador-Kafuri and Silvia Restrepo
Agronomy 2022, 12(3), 548; https://doi.org/10.3390/agronomy12030548 - 23 Feb 2022
Cited by 24 | Viewed by 11609
Abstract
Colletotrichum genus comprises a high number of plant pathogens causing anthracnose disease in different tropical and non-tropical crops. We aimed to review northern South American studies in the online SCOPUS database to: create a taxonomically updated list of the species complexes found in [...] Read more.
Colletotrichum genus comprises a high number of plant pathogens causing anthracnose disease in different tropical and non-tropical crops. We aimed to review northern South American studies in the online SCOPUS database to: create a taxonomically updated list of the species complexes found in the region, describe their most important phytopathological characteristics, revise the methods used in the region to control disease, and discuss the role of fungus as a plant endophyte. A total of 19 Colletotrichum species within five complexes—acutatum, boninense, gigasporum, gloeosporioides, and orbiculare—have been reported in northern South America. Few studies have been conducted, particularly in Peru and Ecuador, despite the diversity of Colletotrichum hosts cultivated in the region. Important information can be extracted from our review: species do not appear to show host specificity, although some isolates show host preferences, certain plant species can host several Colletotrichum species, some studies show the importance of using plant extracts to control the disease, but biological control using microorganisms is certainly an open area of research in the region. In northern South America, only a few hosts have been reported to harbor Colletotrichum as endophyte, and the potential of these endophytes as biological control agents has not yet been explored. Full article
(This article belongs to the Special Issue Fungal and Oomycete Pathogens in Tropical Crop Plants)
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