Colletotrichum plurivorum causes anthracnose on okra in Brazil

Batista, I. C. A.; Boari, A. de J.; Kauffmann, C. M.; Nechet, K. de L.

doi:10.1007/s42161-020-00615-1

Cited by 3 publications

(6 citation statements)

References 3 publications

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“…Colletotrichum plurivorum was the most prevalent species in cassava crops in both in Pará and Tocantins States with highest incidence in the Tocantins, Smilarly in other crops in the Amazon region and Northeastern states in Brazil has been reported (Cavalcante et al, 2019); This prevalence can be associated with diversity and large hots range for this species (Damm et al, 2018;Liu et al, 2019) or the easy dissemination favored by the presence of several small crops in the majority of properties, great exchange of propagation material among producers, successive plantings and conducted without the proper cultural treatments. Although in crops in tropical countries this species is reported as the main cause of anthracnose (de Silva et al, 2019) including that in okra (Abelmoschus esculentus) in Para state, Brazil (Batista et al, 2020), in our study the high prevalence of C. plurivorum found is not necessarily causing signi cant virulence in cassava It could be that the species of C. plurivorum is less aggressive or is most well tolerated by the cassava cv. Formosa.…”

Section: Discussioncontrasting

confidence: 60%

Diversity, prevalence and virulence of Colletotrichum species causing anthracnose on cassava leaves in the northern region of Brazil

Machado

Veloso

Câmara

et al. 2023

Preprint

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Cassava (Manihot esculenta Crantz), is a staple crop widely cultivated by small farmers in developing countries. However, despite the low required level of technology required for its management, it can be affected by several diseases, with anthracnose as the main threat. There is little information about the main species of Colletotrichum that infect cassava in Brazil. Thus, the objective of this work was to study the diversity, prevalence and virulence of Colletotrichum species that cause anthracnose in cassava leaves in northern Brazil. Twenty municipalities of Pará and Tocantins states were selected and leaves with symptoms were collected in those locations. Pure cultures were isolated in the laboratory. Species were identified using phylogenetic analyses of multiple loci and their pathogenicity, aggressivity and virulence levels were assessed. Our results found a greatest diversity of Colletotrichum associated with anthracnose in cassava plants of the “Formosa” cultivar on Tocantins and Pará states. We determined the presence of Colletotrichum chrysophilum, C. truncatum, C. siamense, C. fructicola, C. plurivorum, C. musicola and C. karsti; with C. chrysophilum as the most aggressive and virulent. Our findings provide accurate identifications of species of Colletotrichum causing anthracnose in cassava crops and provide important information for a more effective control of this disease and the adoption of anthracnose management strategies. These include the development of cultivars with resistance genes to the different pathotypes prevalent in the areas of cultivation, which will potentially reduce production costs.

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Section: Discussioncontrasting

confidence: 60%

Diversity, prevalence and virulence of Colletotrichum species causing anthracnose on cassava leaves in the northern region of Brazil

Machado

Veloso

Câmara

et al. 2023

Preprint

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“…C. plurivorum was initially known as C. sichuanensis, which infected Capsicum annuum in Sichuan Province of China, later, it was regarded as C. plurivorum as a distinct species with a wide host range (Damm et al, 2019). Recently, it has been reported to cause anthracnose in papaya (Sun et al, 2019), okra (Batista et al, 2020) and in chilli (Saktivel et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Molecular Variability of Colletotrichum spp. Associated with Anthracnose of Soybean

Kavanashree

Jahagirdar

Kumari

et al. 2022

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Background: Anthracnose is a major foliar disease of soybean associated with Colletotrichum species. In India, C. truncatum is the most widely associated species, whereas, other species are also being reported to cause anthracnose disease in soybean. Methods: Twenty-eight soybean infected samples were collected from different location of India, in order to obtain the pure cultures and were subjected to pathogenicity test. Microscopic observations were made for morphological characterization of all the isolates. Molecular detection was carried out using ITS primers and the sequences were deposited in the NCBI GenBank. Phylogenetic analysis was made using the MegaX bioinformatics tool. Result: The pure cultures were subjected to pathogenicity test, which had reproduced similar symptoms found under field conditions. Microscopic observations on spore morphology were made which revealed that truncate conidia were associated in twenty-seven isolates and cylindrical conidia in one isolate. Molecular detection made showed sequence similarity to Colletotrichum truncatum and the isolate with cylindrical spore was sharing homology with C. plurivorum. Phylogeny analysis clustered the two species into two groups. Hence, the study shows the association of two distinct species in causing anthracnose of soybean.

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“…In America, the pathogen is reported from Brazil (Barbieri et al., 2017 ; Santos et al., 2018 ; Damm et al., 2019 ; Batista et al., 2020 ), Mexico (Damm et al., 2019 ), Puerto Rico (Damm et al., 2019 ) and USA (Scheck, 2019 ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…( 2019 ), Batista et al. ( 2020 ) Arundina graminifolia Orchidaceae Bamboo orchid Damm et al. ( 2019 ) Capsicum spp.…”

Section: Appendix B – Colletotrichum Plurivorum Host Plantsmentioning

confidence: 99%

“…In 2017, severe leaf blight caused by C. plurivorum that resulted in substantial yield loss was observed in chili crops in Andaman and Nicobar Islands in India (Sakthivel et al, 2018). Batista et al (2020) reported that in 2016, 60% anthracnose incidence caused by C. plurivorum was recorded on leaves of okra crops in Altamira Par a, Brazil. Colletotrichum plurivorum, initially identified by Zhou and Li (2017) as C. cliviae, was the causal agent of a leaf spotting disease of Zamioculcas zamifolia potted plants grown for ornamental purposes in Henan Province, China (Zhou and Li, 2017;Damm et al, 2019).…”

Section: Impactsmentioning

confidence: 99%

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Pest categorisation of Colletotrichum plurivorum

Bragard¹,

Serio²,

Gonthier³

et al. 2021

EFS2

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The EFSA Plant Health Panel performed a pest categorisation of Colletotrichum plurivorum Damm, Alizadeh & Toy. Sato, a well-defined fungus of the C. orchidearum species complex which has been reported from Africa, Asia and America to cause anthracnose and pre-and post-harvest fruit rots on more than 30 plant genera. The pathogen has not been reported from the EU territory and is not included in EU Commission Implementing Regulation 2019/2072. Because of the very wide host range, this pest categorisation focused on Abelmoschus esculentus, Capsicum spp., Carica papaya, Glycine max, Manihot esculenta, Phaseolus lunatus, Pyrus bretschneideri and Vitis spp. for which there was robust evidence that C. plurivorum was formally identified by morphology and multilocus gene sequencing analysis. Host plants for planting and fresh fruits are the main pathways for the entry of the pathogen into the EU. The host availability and climate suitability factors occurring in some parts of the EU are favourable for the establishment of the pathogen. Economic impact on the production of the main hosts is expected if establishment occurs. Phytosanitary measures are available to prevent the introduction of the pathogen into the EU. Colletotrichum plurivorum satisfies the criteria that are within the remit of EFSA to assess for this species to be regarded as a potential Union quarantine pest. However, there is a high uncertainty on the status of C. plurivorum in the EU territory because of the lack of specific surveys following the re-evaluation of the taxonomy of the genus Colletotrichum.

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Colletotrichum plurivorum causes anthracnose on okra in Brazil

Cited by 3 publications

References 3 publications

Diversity, prevalence and virulence of Colletotrichum species causing anthracnose on cassava leaves in the northern region of Brazil

Diversity, prevalence and virulence of Colletotrichum species causing anthracnose on cassava leaves in the northern region of Brazil

Molecular Variability of Colletotrichum spp. Associated with Anthracnose of Soybean

Pest categorisation of Colletotrichum plurivorum

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