15 rezultati
Three experiments evaluated the lipids in distillers grains plus solubles compared with corn or other sources of lipid in finishing diets. Experiment 1 utilized 60 individually fed yearling heifers (349 +/- 34 kg of BW) fed treatments consisting of 0, 20, or 40% (DM basis) wet distillers grains plus
* Cadmium (Cd) stress increases cell metabolic demand for sulfur, reducing equivalents, and carbon skeletons, to sustain phytochelatin biosynthesis for Cd detoxification. In this condition the induction of potentially acidifying anaplerotic metabolism in root tissues may be expected. For these
Regulation of reactive oxygen species and cytosolic free calcium ([Ca(2+)](cyt)) is central to plant function. Annexins are small proteins capable of Ca(2+)-dependent membrane binding or membrane insertion. They possess structural motifs that could support both peroxidase activity and calcium
The ameliorating effect of nitrate on the acidification of the cytoplasm during short-term anoxia was investigated in maize (Zea mays) root segments. Seedlings were grown in the presence or absence of nitrate, and changes in the cytoplasmic and vacuolar pH in response to the imposition of anoxia
Our earlier work described that the roots of two maize cultivars, grown hydroponically, differentially responded to cadmium (Cd) stress by initiating changes in medium pH depending on their Cd tolerance. The current study investigated the root exudation, elemental contents and antioxidant behavior
OBJECTIVE
The objective was to determine the effect of biochanin A (BCA), an isoflavone produced by red clover (Trifolium pratense L.), on corn fermentation by rumen micro-organisms.
RESULTS
When bovine rumen bacterial cell suspensions (n = 3) were incubated (24 h, 39°C) with ground corn, amylolytic
Experiments were designed to test the hypothesis that growth depression and azotemia in chronic renal failure can be minimized by providing a nutritional formula that is adequate is essential nutrients but minimizes urinary excretion of all solutes. Unrestrained rats were fed exclusively by
(31)P-, (13)C-, and (15)N-nuclear magnetic resonance spectroscopy were used to determine the roles of malate, succinate, Ala, Asp, Glu, Gln, and gamma-aminobutyrate (GABA) in the energy metabolism and regulation of cytoplasmic pH in hypoxic maize (Zea mays L.) root tips. Nitrogen status was
Published reports of status epilepticus due to intraperitoneal injection containing propylene glycol in rats are sparse. In fact, there are no reports specifying a maximum safe dose of propylene glycol through intraperitoneal administration. We report here a case of unexpected seizures in Sprague
We tested the hypothesis that H+ extrusion contributes to cytoplasmic pH regulation and tolerance of anoxia in maize (Zea mays) root tips. We studied root tips of whole seedlings that were acclimated to a low-oxygen environment by pretreatment in 3% (v/v) O2. Acclimated root tips characteristically
t-Butyl perbenzoate (t-BP) is a relatively stable, lipid-soluble, organic peroxide widely used in the polymer industry. Studies were designed to determine the stability of t-BP in various biological media, its dermal absorption and distribution in intact animals, and the toxicity of t-BP when
Two series of balance experiments were carried out by the end of the 2nd and 4th month with a total of 18 weaned lambs divided into three test groups. In the course of 150 days first group animals were offered daily 1200-1500 g of concentrate pellets for the first and second experiment. The lambs of
We tested the hypothesis (J.-H. Xia and P.H. Saglio [1992] Plant Physiol 100: 40-46) that the enhanced ability of maize (Zea mays) root tips to survive anoxia, elicited by a 4-h exposure to 3% O2 ("acclimation"), is due to less cytoplasmic acidosis early in anoxia. Cytoplasmic pH and fermentation
Carmustine [1 ,3-bis(2-chloroethyl)-1-nitrosurea (BCNU)] is an antitumour agent, however, its usefulness has been limited by a side effect; which involves pericholangitis and intrahepatic cholestasis. The primary effects of cholestasis is well known; bile flow retention, intracellular Ca++
Anaerobically treated seedlings of Oryza sativa L. var arborio accumulated in their shoots more succinate than lactate and cell sap became alkaline. Conversely, in Triticum aestivum L. var MEK 86 lactate accumulation was far higher than that of succinate and cell sap was acidified. Anoxia clearly