INFLUÊNCIA DA INOCULAÇÃO E DO MOLHAMENTO NO DESENVOLVIMENTO DE LESÕES DE Colletotrichum musae EM BANANA

Soares, Maria Gilmara de Oliveira; Alves, E.; Freitas, Aurivan Soares de

doi:10.21757/0103-3816.2017v29n3p213-218

Cited by 3 publications

(4 citation statements)

References 11 publications

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“…After this step, five holes (depth of 2 mm) were prepared with sterilized multi-needles, and 20 μL of suspension was applied at three different points at a concentration adjusted to 10 6 conidia mL -1 (Soares et al, 2017). The fruits were wrapped in plastic bags and incubated at 25 °C and 90% relative humidity.…”

Section: Pathogenicitymentioning

confidence: 99%

“…For the preventive method, the disinfested fruits were initially immersed in the solutions (Table 1), subsequently dried for 12 h and then subjected to inoculation. Avocados were inoculated with a suspension at three different points in the median region of the fruits using the five-hole method according to Soares et al (2017). With the aid of an automatic pipette, 20 μL of the suspension adjusted to a concentration of 10 6 conidia mL -1 was deposited at each point.…”

Section: In Vivo Evaluation Of Starch Coatings For Preventive and Cur...mentioning

confidence: 99%

“…The mean damaged area was then calculated in cm 2 at the inoculated points. The formula adapted by Soares et al (2017) was used to calculate the circle area:…”

Section: Anthracnose Spots and Statistical Analysesmentioning

confidence: 99%

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Postharvest control of anthracnose in avocado with cassava starch and corn starch films

et al. 2022

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The objective of this study was to evaluate the effect of cassava starch and corn starch films on the control of anthracnose in avocado. The fruits were inoculated with conidia suspension and were then immersed in solutions with cassava starch and corn starch alone or in combination at concentrations of 1, 2, 3 and 4% under curative and preventive methods. The variables analysed included mean damaged area, area under the disease progress curve (AUDPC) and fruit fresh weight. Under the curative method, the mean damaged area and AUDPC were reduced in fruits treated with 1% and 4% cassava starch and 1% corn starch. Under the preventive method, fruits treated with 2% cassava starch or 2% corn starch alone resulted in reduced mean damaged area and AUDPC. The combinations of cassava starch and corn starch at 2, 3, and 4% were effective in reducing the mean damaged area and AUDPC under curative control. Under the preventive method, the combinations of cassava starch and corn starch at 2 and 3% reduced the AUDPC, and the mean damaged area was decreased with both starches at 3%. Scanning electron microscopy images revealed a layer of protective film on the fruit's surface that probably prevented the pathogen from penetrating. In addition, there was deformation of hyphae promoted by the action of the films.

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Section: Pathogenicitymentioning

confidence: 99%

Section: In Vivo Evaluation Of Starch Coatings For Preventive and Cur...mentioning

confidence: 99%

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Postharvest control of anthracnose in avocado with cassava starch and corn starch films

et al. 2022

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“…Inoculation was performed at four different points in the middle part of fruits, previously pierced with five holes, using multi-needles (Soares et al, 2017). For this purpose, 20 μL of the 2 × 10 6 conidia mL -1 suspension were deposited at each point with automatic pipette.…”

Section: In Vivo Activity Of Essential Oils and Cassava Starch In Anthracnose Lesionsmentioning

confidence: 99%

Control of anthracnose in banana with cassava starch film associated or not with essential oils

Soares

Alves

Freitas

et al. 2020

Agraria

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The objective of this work was to evaluate the in vitro and in vivo potential of cassava starch film associated or not with essential oils in the control of Colletotrichum musae of banana. Were tested clove oils (Eugenia caryophyllata), thyme (Thymus vulgaris), lemongrass (Cymbopogon citratus), cinnamon (Cinnamomum zeylanicum) and oregano (Origanum vulgare) at 0.1% associated or not with film 2 and 3%. Mycelial growth and conidial germination in vitro and anthracnose in vivo were evaluated. In the curative and preventive controls, the fruits were inoculated with conidia before and after coating, respectively. The major components of essential oils were: eugenol, β-caryophyllene and α-humulene in clove; thymol, ρ-cymene, carvacrol and α-pinene in thyme; geranial and neral in lemongrass; trans-Cinnamaldehyde and eugenol in cinnamon; carvacrol, γ-Terpinene and linalool in oregano. In vitro, total inhibition of mycelial growth and germination of conidia with oregano oil was observed. The films in the concentrations of 2 and 3% isolated and combined with oils of lemon grass and thyme, in addition to these isolated oils, provided a reduction in the size of anthracnose lesions.

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Colletotrichum siamense is the main aetiological agent of anthracnose of avocado in south‐eastern Brazil

et al. 2020

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The avocado (Persea americana) is an economically important fruit in several regions around the world (Perkins et al., 2019). Its cultivation mainly takes place in regions of tropical and subtropical climates (Sharma et al., 2017). The avocado has high nutritional value because it is rich in vitamins A, C, E, and B complex, and it has high contents of carbohydrates, proteins, fibre, and monounsaturated fats (Daiuto et al., 2013). The world production of avocados in 2017 was 5,924,398 tonnes, of which Brazil's production was 213,041 tonnes (http://www.fao.org/). Despite advances in the chain of production of this fruit, its cultivation is affected by postharvest diseases, of which anthracnose is the most important (Campos-Martínez et al., 2016). Anthracnose symptoms are characterized by the formation of round lesions, which are initially brown, but subsequently grow and become dark brown to black. As well as on fruits, symptoms occur on stems, branches, and leaves (Fuentes-Aragón et al.

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INFLUÊNCIA DA INOCULAÇÃO E DO MOLHAMENTO NO DESENVOLVIMENTO DE LESÕES DE Colletotrichum musae EM BANANA

Cited by 3 publications

References 11 publications

Postharvest control of anthracnose in avocado with cassava starch and corn starch films

Postharvest control of anthracnose in avocado with cassava starch and corn starch films

Control of anthracnose in banana with cassava starch film associated or not with essential oils

Colletotrichum siamense is the main aetiological agent of anthracnose of avocado in south‐eastern Brazil

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