Stress drought is an important abiotic factor that leads to immense losses in crop yields around the world. Strategies are urgently needed to help plants adapt to drought in order to mitigate crop losses. Here we investigated the bioprotective effects of inoculating corn grown under drought conditions with two types of plant growth-promoting rhizobacteria (PGPR), A. brasilense, strain SP-7, and...

BACKGROUND There is no direct evidence for an animal model of Helicobacter pylori induced duodenal ulcer. AIM In this study we evaluated the roles of bacterial strain and age of experimental animals in induction of duodenitis and duodenal ulcer in Mongolian gerbils after H pylori infection. METHODS Specific pathogen free Mongolian gerbils were inoculated orally with three bacterial strains ...

pathogenicity of 4 isolates of erysiphe betae from 4 different geographical zones of iran on 5 genotypes of beet, with different levels of resistance to powdery mildew, was investigated. eight-week old plants were inoculated by conidia from 4 isolates separately. indices for infection were estimation of leaf infection and number of produced conidia on the leaf surface 3 weeks after inoculation....

Oligogalacturonides (OGs) are known for their powerful ability to stimulate the plant immune system but little is known about their mode of action in pea (Pisum sativum). In the present study, we investigated the elicitor activity of two fractions of OGs, with polymerization degrees (DPs) of 2-25, in pea against Aphanomyces euteiches. One fraction was nonacetylated (OGs - Ac) whereas the second...

In current study, a few sheep cystic livers and lungs were obtained from Mashhad slaughter house and protoscolex were separated aseptically. Thirty 6-week-old Swiss mice were divided into 5 groups and two thousands of live protoscolices were inoculated intrapritoaneally in each mouse. In group 1 and 2 (prophylactic groups), mice were given 150 mg/kg of oral albendazole and mebendazole for 10 da...

Vaccination with xenogeneic and syngeneic endothelial cells is effective for inhibiting tumor growth. Nontoxic diphtheria toxin (CRM197), as an immunogen or as a specific inhibitor of heparin-binding EGF-like growth factor, has shown promising antitumor activity. Therefore, immunization with or administration of viable human umbilical vein endothelial cells (HUVECs) combined with CRM197 could ha...

INTRODUCTION Provision for the emergence of an influenza pandemic is an urgent issue. The discovery of a novel anti-influenza therapeutic approach would increase the effectiveness of traditional virus-based strategies. This study was undertaken to evaluate the therapeutic effects of anti-high mobility group box-1 (HMGB1) monoclonal antibody (mAb) treatment on influenza A virus (H1N1)-induced pn...

Newborn (within 24 h after birth), 1-week-old and 6-week-old (adult) rats were inoculated with a Hantaan-related virus (B-1) and attempts were made to isolate the virus from various organs. Virus-specific antigens were detected in various organs of newborn rats. Moreover virus could be isolated from almost all their organs even 25 weeks after infection. In contrast, in rats infected at 6 weeks ...