The mutation frequency of Turnip crinkle virus can increase 12-fold without inducing error catastrophe. Lesions in a hairpin repressor frequently reverted and led to second-site alterations biased for specific mutations. These results suggest that the hairpin may also function as an RNA chaperone to properly fold the RNA-dependent RNA polymerase.

In the present study, chemical profile and bioactive properties of roots turnip-rooted parsley (Petroselinum crispum spp. tuberosum) germplasm were evaluated. For this purpose, plants from seventeen cultivars grown in 6 L pots, obtained analyzed terms nutritional value, composition (tocopherols, sugars organic fatty acids) content (antioxidant activity, phenolic compound antimicrobial propertie...

The effects of irradiating blue, UV-A, UV-B and a combination of the lights on anthocyanin accumulation at different hypocotyl positions were investigated in seedlings of the purple top turnip 'Tsuda'. The location of anthocyanin accumulation varied depending on different light spectra. Stronger accumulation of anthocyanin was induced (i) at the upper hypocotyl positions by blue light; (ii) mai...

The use of triclopyr for the removal of woody and broad-leaf vegetation in right-of-ways and agricultural settings has been proposed for Alaska. Triclopyr concentrations in soil after application are of concern because residual herbicide may affect growth of subsequent vegetation. In order to measure triclopyr residues in soil and determine the amount of herbicide taken up by the plant, soil bi...

Salinity is assumed to be a distressing abiotic factor that mainly disrupts crop quality and yield by impairing plant cell mechanisms. Due ion accumulation, salinity stress results in lowering growth rate water uptake. This issue being solved the use of several regulators. Plant regulators have been proven increase plants' ability withstand against stress. In this study, turnip (purple top cult...

s Biodiversity as a tool in animal husbandry .......................................................................................................... 7 Biodiversity as a tool in nutrient supply ............................................................................................................... 9 Biodiversity in organic farming ..........................................................

Aniruddha P. Sane and Vidhu A. Sane Centre for Plant Molecular Biology, National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India Z. Naturforsch. 53c, 341-346 (1998); received December 12, 1997/January 22, 1998 F] ATPase, Purification, Kinetics, Wheat, Pearlmillet The mitochondrial F j ATPases from two cereal crops, wheat and pearlmillet, were purified and studied. The whe...

Research on natural and bioactive compounds is increasingly focused on their effects on human health, but there are unexpectedly few studies evaluating the relationship between climate and natural antioxidants. The aim of this study was analyze the biological role of six different Brassica vegetables (Brassica oleracea L. and Brassica rapa L.) as a natural source of antioxidant compounds. The a...