Pasteuria penetrans is an endospore-forming bacterial parasite of root-knot nematodes that has potential as a biological control agent. Biochemical investigations of P. penetrans are limited because of difficulty in obtaining large quantities of endospores free of plant debris and contaminating microorganisms. Our objective was to develop a technique for extraction and purification of P. penetr...

charcoal rot disease, caused by macrophomina phaseolina has become a restrictive agent for annual crops in iran. the disease incidence reaches up to 90 percent in some infested areas. high air temperature and drought stress associated with this disease, are the main factors for increasing the disease incidence and severity. in order to isolate the pathogenic agents, pieces of infected root and ...

The influence of various c oncentrations of K, nitrogen sources, and inoculation with root-knot nematode Meloidogyne javanica were evaluated in tomato plants. Increased potassium concentration increased top and root fresh weights of intact plants and fresh weights of excised roots. Nitrate-fertilized plants weighed more than plants receiving ammonium independent of the K level in the medium. Ne...

The root endophytic fungus, Piriformospora indica, colonizes roots of a large number of plant species including Cereals and Brasicaceae. There are several reports indicating that P. indica protects roots from different path- ogens. In the present study, rice plants were pre-inoculated with P. indica and were subsequently infected with Fusarium proliferatum, as the causal agent of root rot and c...

for vegetative propagation of nemaguard, st julien a, tetra and gf677 rootstocks via cutting, two separate experiments were carried out in a factorial based on completely randomized design. semi hardwood cuttings were taken in late august and then treated with concentrations of zero, 1500, 2000, 2500 and 3000 mg/l iba. cuttings were cultured in perlite medium and in a greenhouse with mist syste...

Methods Explants of normal porcine vaginal mucosa (full-thickness) were infected with biofilm-producing methicillinresistant S. aureus (MRSA) (3.2x10^5 CFU) for 2h – 48h. Following infection (2h), explants were treated with the active dressing (TegadermTM CHG) for 22-46h or left untreated (controls). Formation of MRSA biofilm was evaluated by scanning electron microscopy. Also, bacteria were en...

In the aftermath of the New York Yankees World Series victory over the New York Mets games to many fans sportswriters and baseball insiders focused attention on whether the Yankees achievement of four World Series championships in ve years was the most impressive team accomplishment in the history of the sport In particular how did it compare to the ve championships in six years including four ...

rice plant is one of the most important and strategic agricultural product with having highest cultivation area after wheat in the world. several factors including plant pathogenic fungi are causing agents of quantitative and qualitative losses in this plant. brown spot is an important seed borne disease of rice that caused by different species of bipolaris. brown spots observed on infected gra...

To determine whether currently used sources of resistance (soybean Plant Introductions [PI] 548402, 88788, 90763, 437654, 209332, 89772, and 548316) influence sex ratios in H. glycines, four inbred lines of the nematode characterized by zero or high numbers of females on resistant soybean were used to observe the number of adult males produced. Nematodes were allowed to infect soybean roots for...