نتایج جستجو برای: growth substances

تعداد نتایج: 868897  

Journal: :Applied and environmental microbiology 1982
J M Barea C Azcón-Aguilar

Glomus mosseae, a representative species of Endogonaceae (Phycomycetes) able to form vesicular-arbuscular mycorrhiza, was investigated for phytohormone production. Spores of G. mosseae were axenically germinated in water, and the resultant mycelial growth was assayed by standard procedures for extracting plant hormones from microbial cultures. Paper partition chromatography and specific bioassa...

Journal: :iranian rehabilitation journal 0
bahareh amirabadi shahid beheshti university of medical sciences, tehran, iran. neda alibeigi university of social welfare and rehabilitation sciences, tehran, iran. mohammad nikbakht shahid beheshti university of medical sciences, tehran, iran. omid massah substance abuse and dependence research center, university of social welfare & rehabilitation sciences, tehran, iran. ali farhoudian substance abuse and dependence research center, university of social welfare & rehabilitation sciences, tehran, iran. younes doostian university of social welfare & rehabilitation sciences, tehran, iran.

objectives: according to the gateway drug theory, tobacco use is a predisposing factor for future substance abuse. this study was conducted to compare nicotine and opiate dependents to identify the differences between their personality traits and psychopathology that makes them turn to other substances after cigarette smoking. methods: a causal-comparative study was conducted. three groups were...

2013
Phillip Trefz Heike Koehler Klaus Klepik Petra Moebius Petra Reinhold Jochen K. Schubert Wolfram Miekisch

Control of paratuberculosis in livestock is hampered by the low sensitivity of established direct and indirect diagnostic methods. Like other bacteria, Mycobacterium avium subsp. paratuberculosis (MAP) emits volatile organic compounds (VOCs). Differences of VOC patterns in breath and feces of infected and not infected animals were described in first pilot experiments but detailed information on...

Journal: :Chemical and Biological Technologies in Agriculture 2014

The aim of this study was to evaluate the toxicity of black cumin (Nigella sativa) extract on germination and growth of flixweed (Descurainia Sophia) seedlings grown in wheat (Triticum aestivum) fields, isolation and identification of important bioactive compounds of its aqueous extract. Two factorial experiments were conducted in a completely randomized design with three replications. In each ...

Journal: Journal of Herbal Drugs 2019
Farshid Kheiri Nasir Landy

Background & Aim: Feed additives have been widely used to stimulate appetite, improve growth performance and immune system function in livestock nutrition. For many years antibiotics have been used in livestock production to improve growth performance. Following the ban on the use of antibiotic growth promoters in animal feeds in European Union and increasing demand for organic...

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