background & aim: recent researches have been done on effects of plant growth regulators (pgr) on growth and production of different crops whose results indicate the effectiveness of most of these hormones on qualitative and quantitative growth of herbs. the application of regulators and inhibitors of growth on herbs may, in addition to growth, also lead to secondary metabolites stimulation...

Invasive alien plants have rapidly established and spread in nature reserves via roads now pose a threat to biodiversity. To understand the mechanism distribution patterns of invasive herbs, we compared altitude native herbs based on 105 plots Dayao Mountain National Nature Reserve. This study also new (introduced China after 1900) old before herbs. In addition, examined effects climatic factor...

The aims of the study were to determine the in vitro cytotoxicity and anti-inflammatory activities of common edible herbs and spices on cultured human gingival fibroblasts (HGFs). Piper betle L. (betel leaf), P.sarmentosum Roxb. (wild betel / kadok leaf), P.nigrum L. (black pepper seed), Eugenia caryophyllata L. (clove bud) and Cinnamomum zeylanicum Blume (cinnamon bark). Essential oils were ex...

Because the use of herbal therapies in the U.S. is escalating, it is essential to be aware of clinical and adverse effects, doses and potential drug-herb interactions. A consumer poll in 1998 indicated that one-third of respondents use botanical remedies, and nearly one in five taking prescription medications also used herbs, high-dose dietary supplements or both. An estimated 15 million adults...

Medicinal herbs are significant source of synthetic and herbal drugs. In the commercial market, medicinal herbs are used as raw drugs, extracts or tinctures. Isolated active constituents are used for applied research. For the last few decades, phytochemistry (study of plants) has been making rapid progress and herbal products are becoming popular. According to Ayurveda, the ancient healing syst...

Generally, the use of plants, herbs or other natural products in medicines is since humans inhabited earth. It was “since ever” when humans were trying to find out which plants might be useful to fight several pains and aches, fever, dyspepsia, or wounds. Through the ages, humans learned which plants would cure different illnesses, or might be poisonous and cause even death, and those that coul...

Insect pest problems in forest nurseries of selected indigenous tree species viz., Calophyllum and Pterocarpus marsupium was studied at Peechi in Kerala State. The most serious pest incidence was noticed on G. arborea (by the caterpillars of Epiplema fulvilinea); A. odoratissima (by the Psyllid Psylla oblonga) and Pterocarpus marsupium [by the psyllids Spanioneura (quadrimaculata group) and Ary...

Increasing bacterial resistance to commercial antibiotics has led to considering medicinal herb applications. This study aimed to identify chemical composition of essential oil of some native medical herbs and their antibacterial activity against Yersinia ruckeri compared with Enrofloxacin in in vitro experiments. The antibacterial activities of ethanolic extracts and essential oils of Eryngium...

Background & Aim: The major aim of this study was to determine the antibacterial activity of the essential oils from five medicinal plants. Experimental: The hydro-distillation essential oils from five plant species, including Satureja bachtiarica, Zataria multiflora, Thymus daenensis, Thymus carmanicus, and Ziziphora tenuior (Lamiaceae) which are e...

The leaves of Arum conophalloides (Araceae) were used in some west areas of Iran as a dessert. The aerial parts of the herb were collected from Sahneh Mountains, Kermanshah Province, west of Iran and was hydrodistilled by Clevenger-type apparatus. Composition of the essential oil was determined by GC and GC/MS. Totally, 18 components (92% of total essential oil) were identified. The oil contain...