background: the genus psammogeton edyew. which belong to the umbelliferae family, is found in central areas of asia. this genus consists of six species widespread in the sandy dunes of deserts. among the four species present in iran, pssamogeton canescens (dc.) vatke is distributed in regions of iran central. objective: the aim of this study is to determine the chemical composition of essential...

objective: the genus psammogeton, belonging to the umbelliferae family, has 4 annual species in iran. in the present work, psammogeton canescens (dc) methods: vatke was collected from saheb-al-zaman mountain slope, northeast of kerman province, iran in may 2013. the essential oils of leaves, flowers and stems of the plantwere separately extracted using hydrodistillation method and analyzed by g...

Background: The genus Psammogeton Edyew. which belong to the umbelliferae family, is found in central areas of Asia. This genus consists of six species widespread in the sandy dunes of deserts. Among the four species present in Iran, Pssamogeton canescens (DC.) vatke is distributed in regions of Iran central. Objective: The aim of this study is to determine the chemical composition of essenti...

Objective: The genus Psammogeton, belonging to the Umbelliferae family, has 4 annual species in Iran. In the present work, Psammogeton canescens (DC) Methods: Vatke was collected from Saheb-al-Zaman Mountain slope, northeast of Kerman province, Iran in May 2013. The essential oils of leaves, flowers and stems of the plantwere separately extracted using hydrodistillation method...

Objective: The genus Psammogeton, belonging to the Umbelliferae family, has 4 annual species in Iran. In the present work, Psammogeton canescens (DC) Methods: Vatke was collected from Saheb-al-Zaman Mountain slope, northeast of Kerman province, Iran in May 2013. The essential oils of leaves, flowers and stems of the plantwere separately extracted using hydrodistillation method...

Atriplex canescens (fourwing saltbush) is a C4 perennial fodder shrub with excellent resistance to salinity. However, the mechanisms underlying the salt tolerance in A. canescens are poorly understood. In this study, 5-weeks-old A. canescens seedlings were treated with various concentrations of external NaCl (0-400 mM). The results showed that the growth of A. canescens seedlings was significan...

Plant productivity is limited by salinity stress, both in natural and agricultural systems. Identification of salt stress-related genes from halophyte can provide insights into mechanisms of salt stress tolerance in plants. Atriplex canescens is a xero-halophyte that exhibits optimum growth in the presence of 400 mM NaCl. A cDNA library derived from highly salt-treated A. canescens plants was c...

Studies of biogeographic variation in species abundances are fundamental to understanding and predicting the impacts of invasive exotic species. We quantified the abundance of the introduced and now invasive biocontrol weevil, Rhinocyllus conicus, on a newly adopted native host plant, Cirsium canescens (Platte thistle), across the plant's distributional range. We used regression and structural ...

North Bangkok. ** Department of Chemistry, Faculty of Science, Ramkhamhaeng University. Abstract A new ecdysteroid, P5, has been isolated from the stem bark of aged trees (with flower) of vitex canescens. 20-Hydroxyecdysone, makisterone A, 24-epi-makisterone A, and canescensterone have also been isolated from both young trees (without flower) and aged trees (with flower) of vitex canescens. The...