objective(s) in addition to several molecular methods and in particular 16s rdna analysis, the application of a more discriminatory genetic marker, i.e., 16s-23s internal transcribed spacer gene sequence has had a great impact on identification and classification of mycobacteria. in the current study we aimed to apply this sequencing power to conclusive identification of some iranian clinical s...

during spring and summer of 2012, a disease characterized by panicle blight was observed on some pistachio (pistacia vera l.) trees grown in kerman province. eighteen isolates of a botryosphaeriaceae were obtained from affected panicles. based on morphological and molecular characteristics, isolates were identified as botrysphaeria dothidea. to our knowledge, this is the first report of b. doth...

The tightness of the casing-rock formation interface is one most important elements drilling and cementing jobs. In absence required tightness, there a risk gas migration directly to ground, groundwater or atmosphere. order eliminate this type uncontrollable unfavorable flows, casing column sealed with cement slurry in annular space beyond casing. Cement displaces mud present space, although ca...