Antifungal modes of action of tea tree oil and its two characteristic components against <i>Botrytis cinerea</i>

Yu, Dandan; Wang, J.; Shao, Xingfeng; Xu, Feng; Wang, H.

doi:10.1111/jam.12939

Cited by 122 publications

(78 citation statements)

References 40 publications

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“…Single pure EOs have greater antimicrobial activity than whole EOs at the same concentration. A previous study by Yu et al (2015) showed that a-pinene was the highest constituent of tea tree oil and it exhibited high antifungal activity to B. cinerea than tea tree oil both in the in vivo and in vitro tests. Daferera et al (2000) reported that thymol is the principal component of thymus vulgaris oil and was effective in controlling the mycelial growth of Penicillium digitatum.…”

Section: Discussionmentioning

confidence: 93%

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Carvacrol and eugenol effectively inhibitRhizopus stoloniferand control postharvest soft rot decay in peaches

Zhou

Wang

et al. 2017

J Appl Microbiol

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Aims: This study aimed to investigate the antifungal mechanism of carvacrol and eugenol to inhibit Rhizopus stolonifer and the control of postharvest soft rot decay in peaches. Methods and Results: To investigate the antifungal mechanism, the effects of carvacrol and eugenol on the mycelium growth, leakages of cytoplasmic contents, mycelium morphology, cell membrane and membrane composition of R. stolonifer were studied. Carvacrol and eugenol both exhibited dosedependent antifungal activity against R. stolonifer, carvacrol at a concentration of 2 ll per plant and eugenol at a concentration of 4 ll per plant inhibited fungal growth completely. The two essential oils (EOs) increased cell membrane penetrability and caused the leakage of cytoplasm, nucleic acid and protein content. The observation using scanning electron microscopy and fluorescent microscopy showed modification of the hyphal morphology and breakage of the cell plasma membrane. Decreased ergosterol contents confirmed that the two EOs could destroy the membrane of R. stolonifer. For the in vivo test, the inhibition of soft rot disease and the induction of defencerelated enzymes were investigated. Carvacrol and eugenol significantly reduced the incidence and severity of soft rot decay in inoculated peaches. The best treatments for controlling soft rot decay were obtained at 0Á5 ll l À1 for carvacrol and 1 ll l À1 for eugenol. The activities of defence-related enzymes in peaches were also enhanced by fumigation with two EOs. Conclusion: This study showed that carvacrol and eugenol could effectively inhibit the growth of R. stolonifer in vitro and successfully control the incidence of soft rot decay in honey peaches. Significance and Impact of the Study: The above findings may be the main antifungal mechanism of carvacrol and eugenol on R. stolonifer. Furthermore, carvacrol and eugenol are helpful for their commercial application on the preservation of fresh fruit.

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Section: Discussionmentioning

confidence: 93%

“…A previous study by Yu et al . () showed that α‐pinene was the highest constituent of tea tree oil and it exhibited high antifungal activity to B. cinerea than tea tree oil both in the in vivo and in vitro tests. Daferera et al .…”

Section: Discussionmentioning

confidence: 99%

Carvacrol and eugenol effectively inhibitRhizopus stoloniferand control postharvest soft rot decay in peaches

Zhou

Wang

et al. 2017

J Appl Microbiol

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“…EOs fumigation is an attractive method to control postharvest decay because of its bioactivity component in the vapor phase (Yu, Wang, & Shao, ). For postharvest storage of peaches, due to their thin skin, soft tissue and cold‐sensitive character, there exist disadvantages if they are subjected to low temperature, coating film, waxing, or thermal treatment.…”

Section: Discussionmentioning

confidence: 99%

Carvacrol and eugenol inhibit postharvest soft rot disease by enhancing defense response in peaches during storage

Zhou

Wei

Peng

et al. 2019

J Food Process Preserv

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Peaches are in high demands because of their nutritional value and delicious flavor, but often become unmarketable due to the fungus infection. In this study, carvacrol and eugenol were used to preserve peaches. Rhizopus stolonifer growth was completely inhibited by carvacrol at 32 µl/Lair and eugenol at 64 µl/Lair. Carvacrol at 0.5 µl/Lair and eugenol at 1 µl/Lair significantly reduced the incidence and severity of soft rot decay in artificially inoculated peaches. Also, carvacrol and eugenol significantly reduced the natural incidence of soft rot disease and maintained high sensory acceptance and quality of peaches during storage. The activities of defense-related enzymes were enhanced by carvacrol and eugenol fumigation, and the contents of phenolics, flavonoids, lignin, and hydroxyproline-rich glycoprotein in these two oils treated fruit, were much higher than untreated control during storage. These observations indicted that carvacrol and eugenol could preserve peach fruit during postharvest storage. Practical applicationsCarvacrol and eugenol showed great potential application in the preservation of peach fruit during postharvest storage, exhibiting high antifungal activity against Rhizopus stolonifer and enhancing defense response to soft rot disease.

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“…The oil is obtained from leaves and small branches of the tree, which grows in Australia. Tea tree oil has a strong antiseptic effect and is used in the control of phytopathogenic fungi and bacteria by destroying their membranes and cell organelles ( Table 1) [35][36][37]. Laboratory and field studies show the high efficiency of tea tree oil (preparation Timorex Gold 24 EC) in limiting Bremia lactucae on lettuce and high effectiveness in protecting this plant against downy mildew [38].…”

Section: Natural Compounds Against Plant Diseasesmentioning

confidence: 99%

Natural Compounds as Elicitors of Plant Resistance Against Diseases and New Biocontrol Strategies

Jamiołkowska

2020

Agronomy

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The goal of sustainable and organic agriculture is to optimize the health and productivity of interdependent communities of soil life, plants, animals, and people. Organic plant production uses natural products and natural self-regulation processes occurring in the ecosystem. The availability of innovative applications and molecular techniques opens up new possibilities in the approach to plant protection for sustainable and organic agriculture. New strategies not only directly protect plants against pathogens but can also induce enhanced immunity that permanently protects against pathogenic strains. This review focuses on the bioactive properties of selected natural compounds (of plant and animal origin), their action on pathogens, and their roles in the mechanism of inducing plant resistance. The author presents selected activities of organic bioactive compounds, such as allicin, naringin, terpenes, laminarin, carrageenans, chitin and chitosan, and outlines the possibilities for their application in protecting crop plants against diseases. In addition, this mini review describes the mechanism of action of the above compounds as elicitors of defense reactions in the plant and the possibility of their utilization in the production of biological preparations as elements of a new plant protection strategy.

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Antifungal modes of action of tea tree oil and its two characteristic components against Botrytis cinerea

Abstract: Understanding the mechanism of terpinen-4-ol and 1,8-cineole antifungal action to B. cinerea is helpful for investigation on their synergistic effect and explaining antifungal action modes of TTO.

Cited by 122 publications

References 40 publications

Carvacrol and eugenol effectively inhibitRhizopus stoloniferand control postharvest soft rot decay in peaches

Carvacrol and eugenol effectively inhibitRhizopus stoloniferand control postharvest soft rot decay in peaches

Carvacrol and eugenol inhibit postharvest soft rot disease by enhancing defense response in peaches during storage

Natural Compounds as Elicitors of Plant Resistance Against Diseases and New Biocontrol Strategies

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