Sôbre Pentacta peterseni spec. nov. (Echinodermata - Holothurioidea)

Clostridium sticklandii nov. spec.

Taxonomic studies on three marine pleurostomatid ciliates, Litonotus bergeri nov. spec., L. blattereri nov. spec. and L. petzi nov. spec. (Ciliophora, Pleurostomatida) from North China Sea.

The morphology and infraciliature of three pleurostomatid ciliates, Litonotus bergeri nov. spec., L. blattereri nov. spec. and L. petzi nov. spec., collected from mariculture ponds near Qingdao (Tsingtao), China, were investigated using live observations and the protargol impregnation method. These new species are distinguished from their congeners by a combination of characters including the t...

Pseudomonas aureofaciens nov. spec. and its pigments.

It is well knowni that the genus Pseudomonas comllpirises several p)igment-producing species, an(l that in all cases in whiich the constitution of these pigments lhais l)een estal)lishedl thlehave leen found to l)e plhenlzine (lerivatives. Wrede and Strack (1929) were the first to prove this foI pyocyanine, the pigment produce(l by Pseudomonas aeruginosa (P. pyocyanea). Pyocvanine is now usuall...

Amphileptus aeschtae nov. spec. and Amphileptus eigneri nov. spec. (Ciliophora, Pleurostomatida), two new marine pleurostomatid ciliates from China.

The morphology and infraciliature of two pleurostomatid ciliates, Amphileptus aeschtae nov. spec. and Amphileptus eigneri nov. spec., collected from shrimp-culturing ponds of the Bohai Sea, China, were investigated using live observations and the protargol impregnation method. The new species A. aeschtae is identified by the presence of 200-300 macronuclear nodules and several contractile vacuo...

بررسی ترکیبهای شیمیایی روغن اسانسی آویشن کرمانی Thymus carmanicus JALAS, spec. nov

سرشاخه‌های گلدار آویشن کرمانی Thymus carmanicus JALAS. Spec. nov از ارتفاع 2250 متر کوهستان چهارباغ (استان گلستان)،‌ در اواسط تیرماه 1380 جمع‌آوری گردید و به روش تقطیر با بخار آب اسانس‌گیری و بازده اسانس 0.82 بدست آمد. روغن اسانس توسط دستگاه کروماتوگراف گازی (GC) و دستگاه کروماتوگراف گازی متصل به طیف‌سنج جرمی (GC/MS) مورد تجزیه و شناسایی قرار گرفت. از میان ترکیبهای شناسایی شده، پولگون (25.37 در...