background and objectives: the artemisia genus of asteraceae family is represented by 34 species in iran. artemisia sieberi grows wild in different regions of iran and grows in desert and semi- desert climate and has forage value for animals and also medicinal properties for humans. in this study we examined the antimicrobial effects of a. sieberi. materials and methods: the antimicrobial activ...

A sufficient differentiation of lymphatic capillaries from blood capillaries in conventional light microscopy still eludes researches. The endothelium and media of lymphatic capillaries are characterized by a strong 5'-nucleotidase activity, whereas blood capillaries reveal no or significantly lower activity. Alkaline phosphatase activity, on the other hand, missing in the lymphatic capillaries...

The diversity of ten populations representing Artemisia monosperma and A. judaica has been analyzed, based on assessment of morphological, karyological and molecular variations. The analysis of morphological variation and molecular polymorphism as revealed by RAPD, using the software NTSYSpc-2.01, confirmed the differentiation of A. monosperma and A. judaica as two distinct species and showed w...

Schistosomiasis, a neglected tropical disease, imposes substantial health and economic burdens on impoverished groups living in predominantly rural areas. Praziquantel (PZQ) is the only drug available for treatment, it not completely efficacious. Artemisia annua afra infusions were proposed to possess antischistosomal activities recently retracted publication of clinical trial, leading our inve...

Ten new alkaloids, lycoposerramines-F (1), -G (2), -H (3), -I (4), -J (5), -K (6), -L (7), -M (8), -N (9), and -O (10), having lycopodine-related structures, were isolated from the club moss Lycopodium serratum THUNB. and their structures were elucidated on the basis of spectroscopic analysis and/or chemical transformation.

Miyazakia gen. nov. with type species Miyazakia ranunculi (Miyazaki, 1971) comb. nov. is described. The species is illustrated and biometric data are provided for all morphs, except the fundatrix. This aphid genus is closely related to Sappaphis Matsumura, 1919. M. ranunculi is a heteroecious species; its primary host is probably Photinia villosa (Thunb.) DC and its secondary host is Ranunculus.