The occurrence of clonal growth of distylous Lithospermum caroliniense was investigated in a population in the Nebraska Sandhills, an area where sand dunes have been relatively stable for at least 1500-3000 yr, and compared to a population occurring at the Indiana Dunes, an area of active sand dune formation. Spatial autocorrelation analysis indicated the occurrence of significant clonal propag...

The aim of the present investigation was to standardize in vitro shoot tip culture technique considering various aspects for direct plant formation two onion (Allium cepa L.) varieties ‘Indian’ and ‘Taherpuri’. About 1.5-2.2 mm tips were collected from bulbs sterilized with 0.1% HgCl2 duration. Then they cultured on MS medium supplemented hormonal concentrations different media composition prim...

Toxoplasma gondii is one of the most prevalent parasitic infections in world. Rh, NED and Me49 are of the most prevalent clonal types of the parasite isolated till now. Differences in pathogenicity and virulence of different types have been investigated in different studies. No controlled study was performed to compare the ability of different types to initiate humoral immune response. We inves...