فهرست مطالب صدیقه چورلی

Stachys lavandulifolia is a medicinal plant growing in different parts of Iran. Its flower and leaf infusions are used for treating diseases related to stomach and also as sedative for insomnia and stress. This research was carried out based on a completely randomized design with three replications to investigate the essential oil contents of leaf and flower obtained from four different sites (Shahrud, Ghuchan, Nyshabur, and Mashhad). Ethnopharmacological data were obtained from local people and the plant samples were collected from their habitas during flowering stage in spring 2014. Essential oils of the sample leaves and flowers were distilled using a Clevenger apparatus to determine essential oil percent and yield in each site. Furthermore, the essential oil components were determined with a GC/MS tool. Results of ethnopharmacological study showed that this plant has different local names in the sites under study but its general application was for reducing stress. The highest essential oil yield and percent and also dry weight were obtained from Mashhad. Also, the highest numbers of essential oil components of Stachys lavandulifolia flower (n=72) and leaf (n=82) were extracted from Nyshabur and Ghuchan, respectively with a maximum essential oil weights of 92.692 and 96.818, respectively. The highest values of major components including betapinene, betaphellandrane, and caryophyllene were obtained from Shahroud and the highest values of spathulenol and alfathujene were obtained from Ghuchan and Mashhad, respectively and these components were higher in leaves than in flowers. The highest quality of the essential oils was obtained from plants grown in Mashhad and Ghuchan habitats.

The biological control of plant pathogens is a priority for reducing of the dangerous effects of chemical pesticides that are include threats for human health, environmental pollution, and the emergence of pathogens resistant eliminates. Ceratocephalus falcatus L. such a buttercup, plant is very small annual plant, 3-5 cm tall, it has short stems. Plant samples were collected based on completely randomized design with three replications in May 2015 from the village of Buzhmehran (city of Neyshabur) to record of morphological, phytochemical characterization such as total phenol, total flavonoids and antioxidant water extract, methanol and acetone plant the fungus Fusarium graminearum. The number of flowers per plant on average 5 numbers, leaf number was 19 and the plant is 3 cm tall. The total phenol Gallic acid 0/098 mg per gram of dry weight, the flavonoids quercetin 0/302 mg per gram of dry weight and percent free radical scavenging antioxidant activity it was determined 70/618. The effect of the extracts on the fungus Fusarium graminearum were showed that the most-linear growth of mycelium to control the methanol extract had the lowest. As a result, methanol extracts percent more on linear growth inhibition was assessed fungus can be concluded that Ceratocephalus falcatus has antifungal properties and enjoys good standing in study programs.

Stachys lavandulifolia is one of the medicinal plants from genus of Stachys and Labiatae with different medicinal properties that is widely found in Iran. This research was based on a completely randomized design with three replications to investigate the morphological characteristics and phytochemical properties in four habitats in Semnan, Razavi and North Khorasan provinces in 2014. Morphological characteristics such as plant height, wet and dry root and shoot weights, root length, number of total flowers, number of open flowers and leaf, leaf area, and chlorophyll content were measured at the time of flowering. Also, essential oil yield and percentage, total phenols, total flavonoids, and antioxidant activity were measured in flowering time. Morphological characteristics did not show any significant difference but essential oil yield and percentage showed a significant difference in different habits. The highes total phenol and antioxidant content were recorded for Shahrud and Mashhad, respectively. The amount of total phenol and flavonoid were determined in the leaves and the highest amount of antioxidant was recorded in flowers. Finally, the highest level of essential oil yield and percentage were recorded for Mashhad and decrease in the altitude and rainfall could be attributed increase in essential oil in Stachys lavandulifolia.