Improvement of in vitro embryo maturation, plantlet regeneration and transformation efficiency from alfalfa ( L.) somatic embryos using extract.

Developmental deficiency of somatic embryos and regeneration to plantlets, especially in the case of transformation, are major problems of somatic embryo regeneration in alfalfa. One of the ways to overcome these problems is the use of natural plant regulators and nutrients in the culture medium of somatic embryos. For investigating the influence of extract on the efficiency of plant regeneration and transformation, chimeric tissue type plasminogen activator was transferred to explants using , and transgenic plants were recovered using medium supplemented with different concentration of the extract.

Green Extracellular Synthesis of the Silver Nanoparticles Using Thermophilic . AZ1 and its Antimicrobial Activity Against Several Human Pathogenetic Bacteria.

Background: Silver nanoparticles (AgNPs) are among the most effective antimicrobial agents that are used in the medicine and pharmaceutics. During the past decades, metal nanoparticles synthesis through application of the biological methods has increasingly been used, as the biologically synthesized particles are mostly non-toxic as well as effective.

Objectives: The main goal for undertaking the present investigation was to evaluate the extracellular synthesis of the AgNPs by a native thermophilic .

Evaluation of genetic diversity amongst Descurainia sophia L. genotypes by inter-simple sequence repeat (ISSR) marker.

Descurainia sophia is a valuable medicinal plant in family of Brassicaceae. To determine the range of diversity amongst D. sophia in Iran, 32 naturally distributed plants belonging to six natural populations of the Iranian plateau were investigated by inter-simple sequence repeat (ISSR) markers.