fire is one of the incorporate vegetation management practices for grasslands and semi-arid rangelands. it may affect symbiotic relationship between range plants and mycorrhiza. accordingly, this research was aimed to investigate the effects of a spring prescribed fire on the symbiotic relationships between mycorrhiza and 6 plant species. the study was conducted in a semi-arid steppe rangeland ...

dna barcoding is a new term introduced in to scientific literatures by hebert and coworkers almost a decade ago. the concept of barcoding alone is well-known to the public: a series of black bars printed on many commercial products (universal product code), which are used to distinguish different products. advances made in molecular biology and molecular techniques late 20th century e.g. sequen...

lectins first discovered more than 100 years ago in plants, they are now known to be present throughout nature. phytohemagglutinin (pha), the lectin extract from the red kidney bean ( phaseolus vulgaris ), contain potent, cell agglutinating and mitogenic activities. they play a role in biological recognition phenomena involving cells and proteins towards medical applications. the present articl...

the fifth iranian national congress on the biology of addiction was held in 22-24 june 2011 in tehran university of medical sciences with over 100 valuable oral and poster presentations and over 300 participants. one of the main sessions of the congress was devoted to a national strategic planning and iranian drug control head quarter (dchq) introducing the first national executive road map on ...

Hemophagocytic lymphohistocytosis (HLH) is a hyperinflammatory syndrome that occurs at all ages and is characterized by high levels of cytokines, secreted by activated T-lymphocytes and macrophages. All symptoms and laboratory changes can be explained by organ infiltration by these cells and hypercytokinemia. HLH occurs as an inherited form (genetic, primary HLH) with mutations primarily in the...

A study of the biology of Indian mackerel, Rastrelliger kanagurta (Cuvier, 1817) in the Western Waters of Aceh, Indonesia was carried out from January to December 2014 and a total of 1343 Indian mackerels were collected randomly twice a month. The allometric coefficients (b) in the present study were between 2.625 and 3.449 with coefficient of determination (R2) values that range between 0.612 ...

this paper summarizes the proceedings of a 1 day national symposium entitled “reproductive biology, stem cells biotechnology and regenerative medicine” held at shahid sadoughi university of medical sciences, yazd, iran on 3rd march 2016. here, we collected the papers that presented and discussed at this meeting by specialists that currently researched about the overlaps of the fields of reprodu...