Efeito fungitóxico de óleos essenciais sobre Phakopsora euvitis, agente causal da ferrugem da videira

Fialho, Régis de Oliveira; Papa, Marli de Fátima Stradioto; Pereira, Daniel

doi:10.1590/1808-1657000702013

Cited by 13 publications

(8 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…et Perry) is a condiment long used as a food additive and recognized as safe by the US Food and Drug Administration (Kheawfu et al 2018). The essential oil extracted from the floral buds has been reported as promising in the control of microorganisms that cause postharvest diseases (Fialho et al 2015;Mangany et al 2015;Santamarina et al 2016;Sharma et al 2017), probably due to the presence of molecules such as eugenol and others in the oil. According to Sivakumar and Bautista-Ban ˜os (2014), essential oils containing a high percentage of phenolic compounds report higher antimicrobial properties, acting directly over the cellular metabolism, affecting the mycelial growth and germination of spores.…”

Section: Introductionmentioning

confidence: 99%

Edible coatings in post-harvest papaya: impact on physical–chemical and sensory characteristics

Batista

Reis

Almeida³

et al. 2019

J Food Sci Technol

View full text Add to dashboard Cite

The aim of the present study was to characterize the physical-chemical and sensory attributes of two papaya varieties (Alianc ¸a and Golden THB) (Carica papaya L.) coated with different solutions of manioc starch and clove essential oil (Syzygium aromaticum L. Merr. et Perry). Four different treatments were studied in papaya fruits at ripening stage 1: T0 (control); T1 (fruits coated with a solution of manioc starch); T2 (fruits coated with clove essential oil at 0.175 mL L -1 ); T3 (solution of manioc starch with clove essential oil-0.175 mL L -1 ). The physical-chemical and sensory analyses were conducted in the fruits at ripening stage 5. The edible coatings did not influence the physical-chemical characteristics of the two varieties. Those fruits coated with manioc starch reported a good sensory acceptance not differing statistically from the control fruits in the majority of the attributes studied. By evaluating the purchase intention regarding the variety Alianc ¸a, all the treatments reported good levels of acceptance, with higher scores in the option ''would certainly buy''. After the sensory evaluation, treatment T3 reported a purchase intention of 80%. It was concluded that the edible coatings did not influence the physical-chemical characteristics of the fruits, however, they influenced the sensory acceptance of the tasters. For the variety Alianc ¸a, the application of treatment T3 is recommended, while for Golden THB, treatments T1 and T2 are recommended due to their similarity to the control.

show abstract

Section: Introductionmentioning

confidence: 99%

Edible coatings in post-harvest papaya: impact on physical–chemical and sensory characteristics

Batista

Reis

Almeida³

et al. 2019

J Food Sci Technol

View full text Add to dashboard Cite

show abstract

“…Strategies to avoid fungicide resistance include mixing or alternation of fungicides with appropriate partner products, limiting the number of treatments, avoidance of excessive use, and integration of control with non‐chemical methods (Brent & Hollomon, ). Essential oils from Piper nigrum fruits and Azadirachta indica seeds showed high levels of P. euvitis inhibition and low toxicity to grape leaves (Fialho et al ., ). However, its practical use for disease control requires appropriate legislative regulation.…”

Section: Disease Controlmentioning

confidence: 97%

Asian grapevine leaf rust caused by Phakopsora euvitis: an important disease in Brazil

Primiano¹,

Loehrer

Amorim³

et al. 2017

Plant Pathology

View full text Add to dashboard Cite

Anthropogenic influences such as tourism and climate change affect ecosystems. One consequence is that invasive species can spread to and colonize novel areas. A recent example of this scenario is the appearance, in the early 2000s in Brazil and Australia, of the plant pathogenic fungus Phakopsora euvitis, which causes Asian grapevine leaf rust. It is speculated that the disease was introduced either by long distance transport of spores in the atmosphere or the import of contaminated plant material. While the disease could be eradicated from the Australian continent it is still present in Brazil. The pathogen has spread successfully throughout most Brazilian grapevine-growing regions, most probably because of the lack of resistant plant cultivars. Today, the disease is endemic in Brazil. This review was written to highlight the increasing impact of the disease in Brazil and summarizes the current knowledge on the disease monocycle under different environmental conditions and the consequences for grapevine management. Gaps in the present state of knowledge are highlighted with the purpose of stimulating further research aimed at identifying efficient strategies to combat the disease.

show abstract

“…Seu uso para finalidades agrícolas ainda é pouco explorado, embora alguns estudos já tenham comprovado a ação fungicida do óleo essencial de melaleuca contra fitopatógenos (BARBOSA et al, 2015, FIALHO et al, 2015SOUZA et al, 2015). Desta forma, o objetivo do trabalho foi avaliar o efeito de concentrações do óleo essencial de melaleuca sobre o crescimento in vitro de Sclerotinia sclerotiorum e Fusarium sp.…”

Section: Introductionunclassified

CONTROLE DE Sclerotinia sclerotiorum E Fusarium sp. COM ÓLEO ESSENCIAL DE MELALEUCA

Steffen¹,

Maldaner²,

Steffen³

et al. 2019

Enci Bio

View full text Add to dashboard Cite

RESUMOMelaleuca alternifolia é uma espécie florestal originária da Austrália, com abundante presença de óleo essencial de interesse econômico devido às reconhecidas propriedades bactericida e antifúngica contra patógenos humanos. O objetivo deste trabalho foi avaliar o efeito de concentrações do óleo essencial de melaleuca sobre o crescimento in vitro de Sclerotinia sclerotiorum e Fusarium sp, fitopatógenos de relevante importância agrícola. Concentrações crescentes de óleo essencial de melaleuca (0; 0,1; 0,25; 0,5%) foram solubilizadas em meio de cultura batata-dextrose-ágar. Os meios foram vertidos em placas de Petri (90 mm de diâmetro), seguido da deposição de um disco de micélio fúngico (9 mm de diâmetro) dos fitopatógenos avaliados. As placas foram incubadas em temperatura de 25±1 °C e fotoperíodo de 12 horas. O crescimento micelial foi avaliado através da determinação do diâmetro médio das colônias com auxílio de paquímetro digital, decorridas 72 e 96 horas de incubação. A partir dos dados de crescimento, determinou-se a porcentagem de inibição do crescimento micelial. O óleo essencial de melaleuca apresentou efeito antifúngico aos fitopatógenos S. slerotiorum e Fusarium sp. As concentrações de 0,5% promoveram 100% de inibição do crescimento de ambos os gêneros fúngicos. Considerando os resultados obtidos neste trabalho, o óleo essencial de melaleuca demonstrou potencial para composição de bioprodutos destinados ao uso agrícola. ABSTRACTMelaleuca alternifolia is a forest species from Australia, with abundant presence of essential oil with economic interest due to the recognized bactericidal and antifungal properties against human pathogens. The objective of this article was to evaluate the effect of melaleuca essential oil concentrations on the in vitro growth of Sclerotinia sclerotiorum and Fusarium sp., phytopathogens of relevant agricultural importance. Increasing concentrations of M. alternifolia essential oil (0.1; 0.25; 0.5%) were solubilized in potato-dextrose-agar culture medium. The culture medium were poured into Petri dishes (90 mm diameter), followed by the deposition of a fungal mycelium disc (9 mm diameter) of the phytopathogens. Petri dishes were incubated at 25±1 °C and photoperiod of 12 hours. Mycelial growth was evaluated by determining the average diameter of the colonies with the aid of a digital caliper after 72 and 96 hours of incubation. The percentage inhibition was determined from the growth data. Melaleuca essential oil showed antifungal effect to S. slerotiorum and Fusarium sp. Concentrations of 0.5% promoted 100% growth inhibition of both fungal genera. Considering the results obtained in this study, the melaleuca essential oil showed potential for the composition of bioproducts for agricultural use.

show abstract

Efeito fungitóxico de óleos essenciais sobre Phakopsora euvitis, agente causal da ferrugem da videira

Cited by 13 publications

References 12 publications

Edible coatings in post-harvest papaya: impact on physical–chemical and sensory characteristics

Edible coatings in post-harvest papaya: impact on physical–chemical and sensory characteristics

Asian grapevine leaf rust caused by Phakopsora euvitis: an important disease in Brazil

CONTROLE DE Sclerotinia sclerotiorum E Fusarium sp. COM ÓLEO ESSENCIAL DE MELALEUCA

Contact Info

Product

Resources

About