First Report of &lt;i&gt;Colletotrichum acutatum&lt;/i&gt; on &lt;i&gt;Mangifera indica&lt;/i&gt; in Sri Lanka

Jayasinghe, C. K.; Fernando, T.H.P.S.

doi:10.4038/cjsbs.v38i1.1326

Cited by 10 publications

(12 citation statements)

References 7 publications

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“…In this study, only one of the 184 Colletotrichum mango isolates was identified as C. acutatum , which demonstrates that this species can cause anthracnose on mango naturally, although it has never been reported to occur on mango in Brazil. Similarly, Jayasinghe & Fernando () also reported for the first time the occurrence of C. acutatum on mango in Sri Lanka. A study conducted in Puerto Rico and Florida reported that 93% of the isolates from mango were identified as C. gloeosporioides , whereas only 5% were C. acutatum , and both species were pathogenic to detached mango leaves (Rivera‐Vargas et al ., ).…”

Section: Discussionmentioning

confidence: 75%

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Lack of host specificity of Colletotrichum spp. isolates associated with anthracnose symptoms on mango in Brazil

et al. 2012

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The aim of the present study was to analyse the genetic and pathogenic variability of Colletotrichum spp. isolates from various organs and cultivars of mango with anthracnose symptoms, collected from different municipalities of São Paulo State, Brazil. Colletotrichum gloeosporioides isolates from symptomless citrus leaves and C. acutatum isolates from citrus flowers with post-bloom fruit drop symptoms were included as controls. Sequencing of the ITS region allowed the identification of 183 C. gloeosporioides isolates from mango; only one isolate was identified as C. acutatum. AMOVA analysis of ITS sequences showed larger genetic variability among isolates from the same municipality than among those from different populations. fAFLP markers indicated high levels of genetic variability among the C. gloeosporioides isolates from mango and no correlation between genetic variability and isolate source. Only one C. gloeosporioides mango isolate had the same genotype as the C. gloeosporioides isolates from citrus leaves, as determined by ITS sequencing and fAFLP analysis. Pathogenicity tests revealed that C. gloeosporioides and C. acutatum isolates from either mango or citrus can cause anthracnose symptoms on leaves of mango cvs Palmer and Tommy Atkins and blossom blight symptoms in citrus flowers. These outcomes indicate a lack of host specificity of the Colletotrichum species and suggest the possibility of host migration.

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Section: Discussionmentioning

confidence: 75%

“…Mango anthracnose is caused by C. gloeosporioides (teleomorph: Glomerella cingulata), but in some cases C. acutatum (teleomorph: Glomerella acutata) has also been reported as a cause of the disease (Freeman et al, 1998;Rivera-Vargas et al, 2006;Jayasinghe & Fernando, 2009;Phoulivong et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Lack of host specificity of Colletotrichum spp. isolates associated with anthracnose symptoms on mango in Brazil

et al. 2012

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“…The pathogen was isolated after an incubation period of 7-11 days at ambient temperature (29-33°C) in alternative 12 hours of darkness and light exposure. The observation and identification of conidia morphology were carried out under light microscopy according to Binh et al (2001) and Jayasinghe & Fernando (2009). Subculture and reisolations of the fungus were done in the same culture medium.…”

Section: Pathogen Culturementioning

confidence: 99%

Inhibition of Colletotrichum gloeosporioides and Control of Postharvest Anthracnose Disease on Mango Fruit Using Propionic Acid Combined with Bee-Carnauba Wax Emulsion

Thinh¹,

Kunasakdakul²

2013

JAS

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Anthracnose caused by Colletotrichum gloeosporioides is the most significant postharvest disease of mangos and negatively affect handling and marketing of mango fruits in Vietnam. A mixture of bee-carnauba wax and propionic acid has successfully inhibited linear growth and spore germination of C. gloeosporioides (in vitro) and prevented anthracnose diseases of mango fruits (in vivo). A complete reduction in mycelial growth and spore germination was observed when a mixture of 0.09% propionic acid and 8% bee-carnauba wax was used. Similar results were shown on mango fruits treated with 0.12% propionic acid which obtained a highly protective effect against anthracnose disease. The results of this study revealed that propionic acid could be used as a safe fungicide alternative against anthracnose disease, which causes economic losses during transportation, marketing and storage.

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“…In Sri Lanka, mango is a fruit that is in high demand in the domestic market and an important fruit for the export market (Jayasinghe and Fernando, 2009). However, commercial mango production is constrained by several diseases at all stages of its development.…”

Section: Introductionmentioning

confidence: 99%

Use of Selected Essential Oils for Controlling Stem-end Rot Disease in Mango (cv. Karuthacolomban)

2019

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In Sri Lanka, stem-end rot (SER) caused by Lasiodiplodia sp. is the most common and serious disease that affects the mango cv. 'Karuthacolomban'.At present, disease control is achieved with chemical fungicides which are hazardous to human health and environment. As such, this research looked into the possibility of using essential oils (EOs) as biological fungicides against Lasiodiplodia sp. in mango (cv. Karuthacolomban). Pure-grade Basil oil (Ocimum basilicum), Cardamom oil (Elettaria cardamomum), Citronella oil (Cymbopogon nardus L.), Lemon oil (Citrus limon), Mustard oil (Brassica juncea) and Orange oil (Citrus sinensis) were selected for the study. The most effective EOs against Lasiodiplodia sp. under in vitro conditions selected by a poisoned food bio-assay, were used in in vivo studies. The effect of the treatment on reducing disease development, organoleptic properties and the edibility of fruits after in vivo application was assessed. Twenty-four hours after artificial inoculation, fruits were dipped in the selected concentration of the EO solutions at room temperature or at 45˚C for 3 minutes and then stored under ambient conditions. Disease 75This article is published under the Creative Commons Attribution-Share Alike 4.0 International License (CC-BY-SA). This license permits use, distribution and reproduction in any medium; provided it is licensed under the same terms and the original work is properly cited. development, percentage weight loss, titrable acidity and total soluble solids contents were measured and a sensory evaluation with a taste panel was also carried out for the treated fruits. Results revealed that basil, cardamom (700 μl l -1 ) and citronella (400 μl l -1 ) oils significantly reduced the growth of Lasiodiplodia sp. under in vitro conditions and cardamom oil (700 μl l -1 ) in warm water effectively reduced the severity of SER under in vivo conditions with no effect on sensory properties or physico-chemical quality parameters. Thus, plant EOs can serve as safe, eco-friendly and effective alternatives to synthetic fungicides.

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First Report of <i>Colletotrichum acutatum</i> on <i>Mangifera indica</i> in Sri Lanka

Cited by 10 publications

References 7 publications

Lack of host specificity of Colletotrichum spp. isolates associated with anthracnose symptoms on mango in Brazil

Lack of host specificity of Colletotrichum spp. isolates associated with anthracnose symptoms on mango in Brazil

Inhibition of Colletotrichum gloeosporioides and Control of Postharvest Anthracnose Disease on Mango Fruit Using Propionic Acid Combined with Bee-Carnauba Wax Emulsion

Use of Selected Essential Oils for Controlling Stem-end Rot Disease in Mango (cv. Karuthacolomban)

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