The rhizosphere is a narrow area around plant roots in which root-secreted secondary metabolites and microorganisms co-exist and interact. This area can also be considered as a battle field where beneficial bacteria and deleterious microorganisms compete. Therefore, this specific root area has been a topic of interest for researchers for more than a century. Among the diverse microbial populati...

abstract : the crown-root fracture is a common tooth injury which compromises the biological width and need proper endodontic and prosthodontic treatment to achieve acceptable clinical outcome. this case report describes clinical management of crown-root fracture in maxillary central incisors which was successfully treated by forceps eruption with 180˚ rotation to restore the biological width. ...

5 Introduction 6 Introduction to root-knot nematodes (Meloidogyne) 6 The life cycle of Meloidogyne species 8 Integrated pest management and biological control 11 Nematophagous fungi 12 Pochonia chlamydosporia (syn. Verticillium chlamydosporium) 12 Materials and Methods 14 Results and Discussion 15 P. chlamydosporia as a control agent of root knot nematodes 15 Conclusions 21 References 23

Abstract Background Root rot pathogens reported to cause considerable losses in both the quality and productivity of common bean ( Phaseolus vulgaris L.) pea Pisum sativum L.). It is an aggressive crop disease with detriment economic influence caused by Fusarium solani Rhizoctonia among other soil-borne fungal pathogens. Destructive plant diseases such as root have been managed last decades usi...

Evaluation of Rhizoctonia zeae as a potential biological control option for fungal root diseases of sugar beet" (2015). Abstract Several common root diseases routinely damage sugar beet in Nebraska and other production areas of the Central High Plains, and it is becoming more common to find fields infested simultaneously with multiple pathogens. Owing to the shortage of available fungicides for...

in order to evaluate the effects of beneficial free living bacteria (azotobacter chroococcum and azospirillum brasilense) compared to different nitrogen fertilizer levels on yield and yield components of barley (hordeum vulgare cv reyhan) a field experiment was conducted at research station college of agriculture, ferdowsi university of mashhad in 2007-2008. the experiment was arranged in a ran...