The availability of inorganic N has been shown to be one of the major factors limiting primary productivity in high latitude ecosystems. The factors regulating the rate of transformation of organic N to nitrate and ammonium, however, remain poorly understood. The aim of this study was to investigate the nature of the soluble N pool in forest soils and to determine the relative rate of inorganic...

Some Dorema species are used in Persian traditional medicine. In the present study the total extract from the roots of Dorema hyrcanum Koso-Pol. was investigated for its in-vitro (pLDH assay) and in-vivo (Peters' 4-days suppressive test) antiplasmodial effects and assessed for cytotoxicity against the normal cell line MDBK (MTT test). The IC50 values for a chloroquine- sensitive (3D7) and a chl...

Abstract Deoxynivalenol (DON) is a primary mycotoxin in cereal feed ingredients that negatively affects intake and immune function of pigs. Formation DON sulfonate (DONS) with sulfites has become an effective approach to mitigate the toxicities practice, but metabolic fate under sulfonation-based decontamination was not well defined. In this study, 48 nursery pigs (35 d age, 10.8 ± 1.3 kg) were...

The cosmopolitan genus Carex L. represented about 1,800-2,000 species mainly in temperate and cold regions of the world. 49 species of Carex found in North-eastern India and 33 species in the rest part of India. Systematics of different taxa (subgenera, sections species pairs etc.) of the genus is quite complicated. In Carex, utricle morphology and fruit epidermal silicabodies have been used to...

Glycosylation is an important plant defense mechanism and conjugates of Fusarium mycotoxins often co-occur with their parent compounds in cereal-based food and feed. In case of deoxynivalenol (DON), deoxynivalenol-3-O-β-D-glucoside (D3G) is the most important masked mycotoxin. The toxicological significance of D3G is not yet fully understood so that it is crucial to obtain this compound in pure...

In continuation of earlier works1) an unknown compound, C20H340, m・P・ 182~183。, [α]15D +14.52°,obtained from the neutral portion of wooe resin of Cryptmeria japonica D. Don, has been examined. In part VIII1) of this series, an isolation of this compound has been described in detail. This compound, called phyllocladanol, is not apparent to have been previously isolated. Phyllocladanol is colorle...