Identification of Colletotrichum isolates from Capsicum chinense in Amazon

Oliveira, C.V.S. de; Matos, Kedma da Silva; Albuquerque, D.M.C. de; Hanada, Rogério Eiji; Silva, G.F. da

doi:10.4238/gmr16029601

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…Within the C. siamense clade, small subclades were observed that coincided with different geographical regions from where the isolates were collected. Colletotrichum siamense has been reported to infect chili in Asia, Australia, Brazil, and is a common pathogen of many other plant species (Weir et al 2012;James et al 2014;Liu et al 2016aLiu et al , 2016bde Oliveira et al 2017;De Silva et al 2017a;Diao et al 2017;Suwannarat et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Identification, prevalence and pathogenicity of Colletotrichum species causing anthracnose of Capsicum annuum in Asia

et al. 2019

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Anthracnose of chili (Capsicum spp.) causes major production losses throughout Asia where chili plants are grown. A total of 260 Colletotrichum isolates, associated with necrotic lesions of chili leaves and fruit were collected from chili producing areas of Indonesia, Malaysia, Sri Lanka, Thailand and Taiwan. Colletotrichum truncatum was the most commonly isolated species from infected chili fruit and was readily identified by its falcate spores and abundant setae in the necrotic lesions. The other isolates consisted of straight conidia (cylindrical and fusiform) which were difficult to differentiate to species based on morphological characters. Taxonomic analysis of these straight conidia isolates based on multi-gene phylogenetic analyses (ITS, gapdh, chs-1, act, tub2, his3, ApMat, gs) revealed a further seven known Colletotrichum species, C. endophyticum, C. fructicola, C. karsti, C. plurivorum, C. scovillei, C. siamense and C. tropicale. In addition, three novel species are also described as C. javanense, C. makassarense and C. tainanense, associated with anthracnose of chili fruit in West Java (Indonesia); Makassar, South Sulawesi (Indonesia); and Tainan (Taiwan), respectively. Colletotrichum siamense is reported for the first time causing anthracnose of Capsicum annuum in Indonesia and Sri Lanka. This is also the first report of C. fructicola causing anthracnose of chili in Taiwan and Thailand and C. plurivorum in Malaysia and Thailand. Of the species with straight conidia, C. scovillei (acutatum complex), was the most prevalent throughout the surveyed countries, except for Sri Lanka from where this species was not isolated. Colletotrichum siamense (gloeosporioides complex) was also common in Indonesia, Sri Lanka and Thailand. Pathogenicity tests on chili fruit showed that C. javanense and C. scovillei were highly aggressive, especially when inoculated on non-wounded fruit, compared to all other species. The existence of new, highly aggressive exotic species, such as C. javanense, poses a biosecurity risk to production in countries which do not have adequate quarantine regulations to restrict the entry of exotic pathogens.

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Section: Discussionmentioning

confidence: 99%

Identification, prevalence and pathogenicity of Colletotrichum species causing anthracnose of Capsicum annuum in Asia

et al. 2019

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“…The fact that at least 12 species (Figure 1B) of Colletotrichum are pathogenic to Capsicum spp. in Brazil (TOZZE Jr. et al 2009;PEREI-RA et al 2011;CAIRES et al 2014;ALMEIDA 2015;LIMA et al 2015;ALMEIDA et al 2017;OLIVEIRA et al 2017;SILVA et al 2017c;GIACOMIN et al 2021) highlights the importance and complexity of this pathosystem.…”

Section: What Does One Need To Know Before Starting a Capsicum Breedi...mentioning

confidence: 99%

The state-of-the-art in the genetics of resistance to the colletotrichum species complex in Capsicum

Araújo,

Sudré,

Alencar

et al. 2023

Revisão Anual De Patologia De Plantas

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Anthracnose, caused by a complex of Colletotrichum species, causes severe damage in various crops, including sweet and chili peppers (Capsicum spp.). The present work is an overview of the breeding advances, challenges and limitations to the identification and characterization of genetic resistance and analytical tools employed for the development of Capsicum cultivars in breeding programs aimed at anthracnose resistance. The complexity and variability of the Capsicum-Colletotrichum pathosystem have practical implications for the germplasm resistance assessment protocols and the selection of representative populations of the pathogens. The methods and tools used for phenotypic evaluation must be adjusted to increase the reliability of the data, which in turn, is essential for the identification of unique genotypes able to contribute to the development of cultivars with durable resistance.

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Genotype-Ideotype distance index and multivariate analysis to select sources of anthracnose resistance in Capsicum spp.

Almeida

Bento²,

Sudré

et al. 2019

Eur J Plant Pathol

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Identification of Colletotrichum isolates from Capsicum chinense in Amazon

Cited by 9 publications

References 12 publications

Identification, prevalence and pathogenicity of Colletotrichum species causing anthracnose of Capsicum annuum in Asia

Identification, prevalence and pathogenicity of Colletotrichum species causing anthracnose of Capsicum annuum in Asia

The state-of-the-art in the genetics of resistance to the colletotrichum species complex in Capsicum

Genotype-Ideotype distance index and multivariate analysis to select sources of anthracnose resistance in Capsicum spp.

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