fire is one of the incorporate vegetation management practices for grasslands and semi-arid rangelands. it may affect symbiotic relationship between range plants and mycorrhiza. accordingly, this research was aimed to investigate the effects of a spring prescribed fire on the symbiotic relationships between mycorrhiza and 6 plant species. the study was conducted in a semi-arid steppe rangeland ...

Poa, the largest genus of grasses (Poaceae) with over 500 species, occurs throughout temperate and boreal regions in both hemispheres. A phylogenetic study of Poa based on trnT–trnF chloroplast DNA sequence data is presented focusing on basal relationships, major clades, generic boundaries, and placement of putatively closely related genera. Results support the monophyly of the main lineage of ...

Background. The aim of this study was to compare hospital-onset (Non-POA) CDI discharges to community-onset (POA) CDI discharges in order to assess the healthcare burden of hospital acquired CDI. Methods. A retrospective chart review of patients diagnosed with CDI was conducted at a tertiary-care hospital in Detroit between January 2011 and December 2012. CDI Patients were classified as present...

In this study the peculiar Andean grass genus Aphanelytrum, with two species, is reduced to Poa subsect. Aphanelytrum comb. & stat. nov. A third species, Festuca reclinata, is assigned to the subsection, which shows states transitional between a more typical Poa and Aphanelytrum. Poa subgen. Poa supersect. Homalopoa sect. Dioicopoa subsect. Aphanelytrum comb. & stat. nov. is characterized in ha...

Methicillin resistant Staphylococcus aureus (MRSA) isolates have become more prevalent among athletes. The objective of this study is to examine the survival S. on synthetic turf systems and natural turfgrass under varying environmental conditions evaluate effectiveness various control agents applied turf. Under non-extreme temperature very limited light conditions, less than 4% survived both f...