The yield of singlet oxygen sensitized by chemically modified, carotenoidless bacterial photosynthetic reaction centres and the ensuing oxidative damage are both shown to be magnetic field-dependent.

In this review, a comprehensive discussion exclusively on bacterial xylanases; their gene organization; different factors and conditions affecting enzyme yield and activity; and their commercial application have been deliberated in the light of recent research findings and extensive information mining. Improved understanding of biological properties and genetics of bacterial xylanase will enabl...

to determine the effects of biofertilizers, nitrogen and azocompost on oil yield and essential oil content of dragonhead (dracocephalum moldavica l.), a field experiment was conducted as factorial in a randomized complete blocks design with 20 treatments and 3 replications. this study was performed at two locations during 2009-2010 on field in tarbiat modares university, and at the khoy agricul...

background: acute bacterial meningitis is among serious infections of the central nervous system (cns). the early diagnosis and empiric antibiotic treatments have led to a reduction in morbidity and mortality rates. pcr and the enzymatic digestion of 16s rdna fragment following the pcr by universal primers led up fast and sensitive determination. the aims of the present study was to improve our...

line g-14088 was first introduce in iran together with 60 other chitti bean lines in 1988 through ciat. it was tested in different breeding experiments for yield and agronomic characteristics and was compared with local cultivar checks and other advanced lines of chiti bean from 1988 to 2005 in different locations of iran. due to higher seed yield and favorable characteristics, it was selected ...

Rice crop is highly vulnerable at all stages of growth to different pathogens that affect the quality and quantity its yield. Among diseases, Bacterial blight rice (Xanthomonas oryzae pv. oryzae), a deadly bacterial disease among most destructive affliction cultivated (Oryza sativa O. glaberrima). In severe epidemics, loss may be as high 75 percent, millions hectares are infected annually. Biol...

The quantum yield and lifetimes of fluorescence and triplet state of the B820 subunit of core antenna of photosynthetic purple bacterium Rhodospirillum rubrum are reported at temperature range from 4.2 to 300K. The fluorescence quantum yield of B820 is strongly dependent on temperature. From 4.2 to about 200 K the yield remains nearly constant. A nonradiative decay process becomes activated aro...