نتایج جستجو برای: plant essential oils

تعداد نتایج: 748860  

Journal: :journal of medicinal plants and by-products 0

in the present study, we reported the essential oils chemical composition and antibacterial activities of the aerial parts of ajuga chamaecistus ging. ex benth. subsp. scoparia (boiss.) rech.f. thatwere collected duringmay 2013 and april 2014 and extracted by sde (simultaneous distillation–extraction) and clevenger apparatus. gc/ms analysis of the plant essential oils led to the identification ...

2010
Luong Nguyen Dubravka Bodiroga Reka Kelemen Jaewook Joo Kimberly D. Gwinn

Essential oils have antifungal and antipathogenic effects and therefore are targets in plant pathology research for their potential uses as natural substitutes for inorganic plant pesticides. Beauveria bassiana, an entomopathogenic fungus, can endophytically colonize a vast number of plant species and trigger induced systemic resistance against plant pathogens. Spore germination is the most vul...

Journal: :Journal of economic entomology 2009
Nadeer N Youssef Jason B Oliver Christopher M Ranger Michael E Reding James J Moyseenko Michael G Klein Robert S Pappas

Forty-one plant essential oils were tested under field conditions for the ability to reduce the attraction of adult Japanese beetles, Popillia japonica Newman (Coleoptera: Scarabaeidae), to attractant-baited or nonbaited traps. Treatments applied to a yellow and green Japanese beetle trap included a nonbaited trap, essential oil alone, a Japanese beetle commercial attractant (phenethyl proprion...

Journal: :Journal of medicinal food 2016
Vaclav Vetvicka Jana Vetvickova

Thymus species are popular spices and contain volatile oils as main chemical constituents. Recently, plant-derived essential oils are gaining significant attention due to their significant biological activities. Seven different thymus-derived essential oils were compared in our study. First, we focused on their chemical composition, which was followed up by testing their effects on phagocytosis...

F Nikkhah, F Sefidkon, E Sharifi Ashoorabadi , MR Dehghani-Mashkani , V Abdossi ,

Background: Thymus daenensis is on e of the endemic aromatic species in Iran that its essential oil is used in food and pharmaceutical industries. Objective: In this study, the effects of plant growth stages and distillation methods on essential oil content and thymol percentage of this species were evaluated. Methods: The aerial parts of Th. daenensis were collected in three stages of plan...

Rezaei R (2020) Effect of eight essential oils on bacterial canker disease in citrus. Plant Pathology Science 9(1):29-37. DOI: 10.2982/PPS.9.1.29.   Introduction: Citrus bacterial canker caused by Xanthomonas citri subsp. citri is an economically important disease in many tropical and subtropical countries. Several pathotypes of this pathogen have been described which, in addition to certain ...

2013
JF Sanchez-Suarez I Riveros G Delgado

BACKGROUND The leishmanicidal and cytotoxic activity of ten essential oils obtained from ten plant specimens were evaluated. METHODS Essential oils were obtained by the steam distillation of plant leaves without any prior processing. Cytotoxicity was tested on J774 macrophages and leishmanicidal activity was assessed against four species of Leishmania associated with cutaneous leishmaniasis. ...

2016
Bledar Pulaj Behxhet Mustafa Kate Nelson Cassandra L. Quave Avni Hajdari

BACKGROUND Plant material from different organs of Pistacia terebinthus L., (Anacardiaceae) were collected in Kosovo with aim to analyze the chemical variability of the essential oils among native populations and to test them for potential antibacterial activity against Staphylococcus aureus. METHODS Essential oils obtained from leaves, pedicels, fruits and galls were analyzed by GC-FID and G...

Journal: :دانش گیاه پزشکی ایران 0
حمید رضا صراف معیری استادیارا، دانشکده کشاورزی دانشگاه زنجان فاطمه پیرایش فر استادیار کارشناسی ارشد، دانشکده کشاورزی دانشگاه زنجان اورنگ کاوسی دانشجوی سابق کارشناسی ارشد، دانشکده کشاورزی دانشگاه زنجان

two-spotted spider mite (tetranychus urticae koch), is one of the most seriously important  polyphagous pests that causes considerable damage to agricultural crops. in recent years, due to problems associated with the use of synthetic pesticides, herbal essential oils have received due attention as natural plant pest control compounds. in the present study, repellency effect of herbal plant ess...

Journal: :ethno- pharmaceutical products 2014
sayed rasoul zaker shahin gavanji sayedeh sana sayedipour azizollah bakhtari elham shirani bidabadi

nowadays, many antibiotics are being used to control infectious diseases. inappropriate use of antibiotics leads to emergence of resistant bacteria and problems such as a prolonged course of treatment. medicinal plants and their derivatives, as a good source of treatment, are effective against drug resistance. in this study we have evaluated the antimicrobial activity of herbal essential oils o...

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