Ergothioneine was synthesized and accumulated in growing cultures of Mycobacterium smegmatis when the medium was adequately supplied with sulfur. In a low sulfur medium, the accumulation was sharply limited although growth of the organism was apparently normal. Synthesis of hercynine, the precursor of ergothioneine, was unaffected by low sulfur levels and was markedly increased by addition of l...

The reported incidence of acute respiratory illness in families exposed to different concentrations of air pollution was studied during two consecutive school years. The purpose of the study was to determine the effect of increased exposure to sulfur dioxide and suspended particulate matter. In each of four study communities, the mothers of approximately 250 white families were contacted biweek...

Fifteen pesticides were tested in laboratory bioassays on Galendromus occidentalis (Nesbitt), the principal phytoseiid mite predator in Washington apple orchards. We developed a rating system for pesticides using lethal and sublethal effects, and applied the rating system to our results. At the 1 dose, only spinetoram and lambda-cyhalothrin caused >75% acute mortality of females. Carbaryl, azin...

The performance of the Paci¢c white shrimp Litopenaeus vannamei (Boone) under various stocking strategies was evaluated in earthen ponds ¢lled with freshwater amended with major ions. Six 0.1-ha earthen ponds located in Pine Blu¡, AR, USA, were ¢lled with freshwater in 2003 and 2004, and potassium magnesium sulphate added to provide 50mgK L 1 and stock salt added to provide 0.5 g L 1 salinity. ...

The challenges of soil degradation and climate change have led to the emergence Conservation Agriculture (CA) as a sustainable alternative tillage-based agriculture systems. Despite recognition positive impacts on health, CA adoption in Africa has remained low. Previous health studies mainly focused ‘scientific’ measurements, without consideration local knowledge, which influences how farmers i...

On the basis of proposed new principal technological scheme, research work has been carried out to improve processing low-concentration sulfur-containing gases and neutralize atmospheric emissions. At beginning this process, reduction natural gas with water conversion products on alumocobaltmolybdenum (ACM) catalyst SO2 was studied achieve high yield sulfur then a method neutralization real mix...

A series of cadmium thiolate compounds that feature a sulfur-rich coordination environment, namely [TmBut]CdSAr, have been synthesized by the reactions of [TmBut]CdMe with ArSH (Ar = C6H4-4-F, C6H4-4-But, C6H4-4-OMe, and C6H4-3-OMe). In addition, the pyridine-2-thiolate and pyridine-2-selenolate derivatives, [TmBut]CdSPy and [TmBut]CdSePy have been obtained via the respective reactions of [TmBu...

Teff is one of the major crops grown in central and north western zones Tigray regional state. However, its productivity low due to soil fertility as a result intensive long history cultivation erosion. Therefore, field experiment was carried out on farmer’s Medebay zana Tahtay koraro districts (Adekemalk Beles kebelles) during 2017 2018 main cropping seasons evaluate response NPSZnB fert...

BACKGROUND Members of the WhiB-like (Wbl) protein family possess iron-sulfur clusters and are implicated in the regulation of developmental processes in Actinomycetes. Mycobacterium tuberculosis possesses seven Wbl proteins. The [4Fe-4S] cluster of M. tuberculosis WhiB1 is relatively insensitive to O(2) but very sensitive to nitric oxide (NO). Nitric oxide nitrosylates the WhiB1 iron-sulfur clu...