Pyrethroids play an important role in modern agriculture but their use is not without risks to non-target organisms and habitats. They have high toxicity to a broad spectrum of aquatic organisms. The aim of the study was to investigate the effect of low concentration (0.02 μg l(-1)) of two widely used pyrethroids--cypermethrin and deltamethrin on phyto- and zooplankton. The acute bioassays were...

Early blight, caused by Alternaria solani is one of the destructive diseases potato. An in vitro experiment was conducted using poisoned food technique to evaluate efficacy acetone extracts six plant species on mycelial growth A. solani. Plant Artemisia vulgaris, Melia azedarach, Parthenium hysterophorus, Datura stramonium, and Justicia adhatoda at concentrations 0.1%, 0.5% 5% prepared from Sox...

background: leishmaniasis has been identified as a major public health problem in tropical and sub-tropical countries. the present study was aimed to investigate antileishmanial effects of various extracts of berberis vulgaris also its active com-poenent, berberine against leishmania tropica and l. infantum species on in vitro ex-periments. methods : in this study in vitro antileishmanial activ...

Plants synthesize a great variety of isoprenoid products that are required not only for normal growth and development but also for their adaptive responses to environmental challenges. However, despite the remarkable diversity in the structure and function of plant isoprenoids, they all originate from a single metabolic precursor, mevalonic acid. The synthesis of mevalonic acid is catalysed by ...

The essential oil composition of Thymus vulgaris L. and Rosmarinus officinalis L. endemic to France were determined by GC and GC-MS. Oils were assessed for their cytotoxic, antioxidant and antimicrobial activity. 31 and 37 different compounds were identified representing 99.64% and 99.38% of the thyme and rosemary oils respectively, where oxygenated monoterpenes constituted the main chemical cl...