scholarly journals In vitro sensitivity of Alternaria solani to conventional fungicides and a biofungicide based on tea tree essential oil

2015 ◽  
Vol 30 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Milos Stepanovic ◽  
Stojan Jevremovic ◽  
Emil Rekanovic ◽  
Milica Mihajlovic ◽  
Svetlana Milijasevic-Marcic ◽  
...  
Keyword(s):  
Essential Oil ◽  
Alternaria Solani ◽  
Tea Tree Oil ◽  
Tea Tree ◽  
In Vitro Sensitivity ◽  
Infected Tomato

A study of in vitro sensitivity of five Alternaria solani isolates to cooper-oxychloride, chlorothalonil, difenoconazole, pyraclostrobin and a biofungicide based on tea tree essential oil was carried out. The isolates were obtained from infected tomato leaves collected from five different locations in Serbia. The tested isolates showed the highest sensitivity to pyraclostrobin with EC50 values ranging from 0.0014 to 0.0041 ?g ml-1. The EC50 values of difenoconazole were 0.018-0.037 ?g ml-1, chlorothalonil 2.99-4.54 ?g ml-1, and cooper-oxychloride 13.27-15.63 ?g ml-1. All tested A. solani isolates were the least sensitive to tea tree oil (1323.97-3307.08 ?g l-1).

scholarly journals The application of tea tree essential oil in dentistry

2007 ◽  
Vol 54 (2) ◽  
pp. 106-114
Author(s):  
D. Markovic ◽  
B. Mirkovic ◽  
T. Jovanovic ◽  
A. Knezevic ◽  
T. Nastovski
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Fusobacterium Nucleatum ◽  
Viral Diseases ◽  
Prevotella Intermedia ◽  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree ◽  
Plant Substances

Essential oils are widely used in medicine, dentistry and cosmetology as flavour and odour corrigents in various substances for oral hygiene. The aim of this study was to present comprehensively the possibilities for application of Melaleuca Alternifolia essential oil in dentistry based on the analysis of contemporary scientific and professional publications. The application of Tea tree essential oil in the treatment of periodontal, fungal and viral diseases is very efficient. The study of antimicrobial potential of ten different essential oils confirmed the efficiency of Tea tree oil against numerous Gram+ and Gram- bacteria. In vitro studies of bacteriostatic, bactericidal and fungicidal effect of Tea tree oil solution against ten different microorganisms confirmed sensitivity of the following microorganisms: Actinobacillus actinomycetemcomitans, Fusobacterium nucleatum and Porphyromonas gingivalis, and slightly weaker effect against Streptococcus Mutans and Prevotella intermedia. Tea tree is very effective in the treatment of various diseases and is an introduction and momentum for the application of plant substances in the treatment of numerous diseases in dentistry. .

scholarly journals Evaluation of the New Compound Oxathiapiprolin for Control of Downy Mildew in Basil

2015 ◽  
Vol 16 (4) ◽  
pp. 165-172 ◽  
Author(s):  
Jaimin S. Patel ◽  
Maria I. Costa de Novaes ◽  
Shouan Zhang
Keyword(s):  
Downy Mildew ◽  
Seed Treatment ◽  
Field Experiments ◽  
Foliar Application ◽  
Tea Tree Oil ◽  
Baseline Sensitivity ◽  
Tea Tree ◽  
In Vitro Sensitivity ◽  
Potassium Phosphite

This study was conducted to evaluate a new chemical, oxathiapiprolin, as a seed treatment and foliar application for control of downy mildew of basil, caused by Peronospora belbahrii, and to assess the in vitro sensitivity of P. belbahrii to oxathiapiprolin. In the greenhouse, both foliar application and seed treatment with oxathiapiprolin significantly (P < 0.05) reduced downy mildew severity on basil and increased width of cotyledons compared to the non-treated control. In field experiments, foliar applications of oxathiapiprolin alone, as a tank mixture, or in alternation with azoxystrobin, potassium phosphite, or tea tree oil significantly reduced downy mildew severity and increased the basil yield compared to the non-treated control. In the laboratory test, EC50 values of sensitive P. belbahrii isolates ranged from 0.00033 μg/ml to 0.00040 μg/ml oxathiapiprolin, providing important information on baseline sensitivity of P. belbahrii to oxathiapiprolin. The results indicate that oxathiapiprolin can be applied as foliar applications in combination or in alternation with azoxystrobin or potassium phosphite to control the disease effectively. Accepted for publication 1 November 2015. Published 13 November 2015.

scholarly journals Activity of Tea Tree (Melaleuca alternifolia) Essential Oil against L3 Larvae ofAnisakis simplex

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Carlota Gómez-Rincón ◽  
Elisa Langa ◽  
Paula Murillo ◽  
Marta Sofía Valero ◽  
César Berzosa ◽  
...  
Keyword(s):  
Essential Oil ◽  
Therapeutic Potential ◽  
Anisakis Simplex ◽  
Ache Inhibitor ◽  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree ◽  
Dependent Inhibition ◽  
Ld50 Value

Nematicidal activity ofMelaleuca alternifoliaessential oil, commonly known as tea tree oil (TTO), was assayedin vitroagainst L3 larvae ofAnisakis simplex. The results showed a mortality of 100% for concentrations between 7 and 10 μL/mL after 48 h of incubation, obtaining an LD50 value of 4.53 μL/mL after 24 hours and 4.27 μL/mL after 48 hours. Concentration-dependent inhibition of acetylcholinesterase was observed for tea tree essential oil showing inhibition values of 100% at 100 μL/mL. This fact suggests that TTO may act as an AChE inhibitor. Terpinen-4-ol was discarded as main larvicide compound as it did not show larvicidal or anticholinesterase activity. The data obtained suggest that the essential oil ofMelaleuca alternifoliamay have a great therapeutic potential for the treatment of human anisakiasis.

Evaluation of the antibacterial effect of tea tree oil on Enterococcus faecalis and biofilm in vitro

2021 ◽  
pp. 114566
Author(s):  
Jianyan Qi ◽  
Min Gong ◽  
Rui Zhang ◽  
Yumeng Song ◽  
Qian Liu ◽  
...  
Keyword(s):  
Enterococcus Faecalis ◽  
Antibacterial Effect ◽  
Tea Tree Oil ◽  
Tea Tree

scholarly journals Emprego do óleo de Melaleuca alternifolia Cheel (Myrtaceae) na odontologia: perspectivas quanto à utilização como antimicrobiano alternativo às doenças infecciosas de origem bucal

2011 ◽  
Vol 13 (4) ◽  
pp. 492-499 ◽  
Author(s):  
A.C.M. Oliveira ◽  
A. Fontana ◽  
T.C. Negrini ◽  
M.N.M. Nogueira ◽  
T.B.L. Bedran ◽  
...  
Keyword(s):  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree

O interesse por medicamentos alternativos, principalmente daqueles provenientes de extratos naturais, tem aumentado nas últimas décadas. A Melaleuca alternifolia é um arbusto pertencente ao gênero Melaleuca, popularmente conhecida como "árvore de chá", cujo principal produto é o óleo essencial (TTO - tea tree oil), de grande importância medicinal por possuir comprovada ação bactericida e antifúngica contra diversos patógenos humanos. Em virtude da atividade terapêutica em diversas especialidades médicas, o TTO passou a ser empregado na área odontológica. Esta revisão de literatura foi realizada com o objetivo de discutir os ensaios já realizados com o TTO contra microrganismos relacionados à doença cárie, doença periodontal e problemas pulpares. O óleo de Melaleuca tem demonstrado boa ação antibacteriana in vitro contra microrganismos bucais, porém, pesquisas envolvendo o estudo do mecanismo de ação sobre as células microbianas ou estudos in vivo ainda são escassos e precisam ser realizados, já que esse produto pode ser útil na odontologia, seja na manutenção química da higiene ou prevenção de doenças bucais.

Sign in / Sign up

Export Citation Format

Share Document