Root and rhizosphere traits for enhanced water and nutrients uptake efficiency in dynamic environments.

Modern agriculture's goal of improving crop resource acquisition efficiency relies on the intricate relationship between the root system and the soil. Root and rhizosphere traits play a critical role in the efficient use of nutrients and water, especially under dynamic environments. This review emphasizes a holistic perspective, challenging the conventional separation of nutrient and water uptake processes and the necessity for an integrated approach.

Ferrihydrite coating reduces microplastic induced soil water repellency.

Addition of microplastics (MP) to soil has the potential to increase soil water repellency. However, coating of MP with soil abundant substances , iron compounds, can reduce this effect. Here, we tested if pre-coating or coating of MP with ferrihydrite (Fh) reduces soil water repellency.

Parent-implemented intervention for children in third to fifth grade with dyslexia.

Background: Few studies have investigated the acceptability and efficacy of intensive parent-implemented interventions for children with dyslexia.

Methods: We carried out a randomized controlled trial on 22 dyslexic children from 3rd to 5th grade. Reading performance was measured before (T1) and after (T2) summer by a selection of tests from the BALE and EDA batteries.

Biogels in Soils: Plant Mucilage as a Biofilm Matrix That Shapes the Rhizosphere Microbial Habitat.

Mucilage is a gelatinous high-molecular-weight substance produced by almost all plants, serving numerous functions for plant and soil. To date, research has mainly focused on hydraulic and physical functions of mucilage in the rhizosphere. Studies on the relevance of mucilage as a microbial habitat are scarce.

Synthesis and Performance of MOF-Based Non-Noble Metal Catalysts for the Oxygen Reduction Reaction in Proton-Exchange Membrane Fuel Cells: A Review.

Hydrogen is widely regarded as a prime energy carrier for bridging the gap between renewable energy supply and demand. As the energy-generating component of the hydrogen cycle, affordable and reliable fuel cells are of key importance to the growth of the hydrogen economy. However, the use of scarce and costly Pt as an electrocatalyst for the oxygen reduction reaction (ORR) remains an issue to be addressed, and in this regard, metal-organic frameworks (MOFs) are viewed as promising non-noble alternatives because of their self-assembly capability and tunable properties.

Hormone-Like Effects of Bisphenol A on p53 and Estrogen Receptor Alpha in Breast Cancer Cells.

Bisphenol A (BPA) is a polymerizing agent commonly found in plastics that has been linked to xenoestrogenic activity. In this study, we analyzed the estrogen-like effects of BPA on the expression of estrogen receptor (ER)α and p53 with hormonal and antihormonal treatments in T-47D and MCF-7 cells. Cells were cultured in medium containing 5% charcoal-stripped fetal bovine serum for 6 days to deplete any endogenous steroids or effectors.

Surface tension, rheology and hydrophobicity of rhizodeposits and seed mucilage influence soil water retention and hysteresis.

Aims: Rhizodeposits collected from hydroponic solutions with roots of maize and barley, and seed mucilage washed from chia, were added to soil to measure their impact on water retention and hysteresis in a sandy loam soil at a range of concentrations. We test the hypothesis that the effect of plant exudates and mucilages on hydraulic properties of soils depends on their physicochemical characteristics and origin.

Methods: Surface tension and viscosity of the exudate solutions were measured using the Du Noüy ring method and a cone-plate rheometer, respectively.

Hydrogen adsorption measurements and modeling on metal-organic frameworks and single-walled carbon nanotubes.

Hydrogen adsorption measurements on Al-, Cr-, and Zn-based metal-organic frameworks (MOFs) and single-walled carbon nanotubes (SWNTs) are presented. The measurements were performed at temperatures ranging from 77 to 300 K and pressures up to 50 atm using a volumetric approach. The maximum excess adsorption at 77 K ranges from 2.

Adsorption of nitrogen on granular activated carbon: experiment and modeling.

A carbon adsorbent was produced and used to volumetrically measure nitrogen adsorption isotherms from 93 to 298 K and up to 7 MPa. The isosteric heat of adsorption was determined to range between -9.5 and -16 kJ/mol.

Theoretical study of the contribution of physisorption to the low-pressure adsorption of hydrogen on carbon nanotubes.

To investigate the contribution of geometry on the adsorption process, we present a theoretical study of the low-pressure physisorption of hydrogen on isolated nanotubes and nanotube bundles through the second virial coefficient, B(AS), computed classically with an uncorrugated adsorption potential. The optimal nanotube bundle geometry at low pressure for a Lennard-Jones adsorption potential is obtained by studying the second virial coefficient, B(AS), for variable radius or bundle lattice constant. The most favorable bundle adsorption sites at low pressures and temperatures are identified for typical bundle structures and the relative contribution of interstitial sites relative to other sites is discussed as a function of temperature and pressure.

[Vasodilatory septic shock refractory to catecholamines: is there a role for terlipressin?].

We report two patients in vasodilatory septic shock refractory to catecholamines in which a continuous infusion of terlipressin was associated with a dramatic increase in systemic arterial blood pressure and short-term survival. Low doses of terlipressin were sufficient in both cases (0.01-0.

Autoradiography in brain of Macaca fascicularis monkeys after injection of acetyl-DL-leucine [2-14C] (Tanganil).

Acetyl-DL-leucine [2-14C]: Tanganil a antivertigal drug has been injected intravenously in two macaca monkeys which have been sacrificed 2 and 5 minutes later. Radioactivity distribution has been studied by autoradiography in the brain. An important uptake of radioactivity is localized in the cortical structures and in several tisses such as nuclei of the vestibular system, including the inner ear.

Characterization of a macaque anti-Rh17-like monoclonal antibody.

In order to produce macaque monoclonal antibodies (mAbs) against human red blood cell (RBC) antigens, macaques were immunized with human and gorilla RBCs and their spleen lymphocytes were fused with man-mouse heteromyeloma cells. One macaque-mouse heterohybridoma produced a macaque IgGx (Cvn2-4D5) which agglutinated all human RBCs but not rare human variants Dc-,D-, and Rhnull. Thus, Cyn2-4D5 exhibited RH17-like reactivity.

Distribution study of radioactivity in rats after oral administration of the lipido/sterolic extract of Serenoa repens (Permixon) supplemented with [1-14C]-lauric acid, [1-14C]-oleic acid or [4-14C]-beta-sitosterol.

The study carried out on rats given orally the n-hexane lipido/sterolic extract of Serenoa repens (LSESR), supplemented with [14C]-labelled oleic or lauric acids or beta-sitosterol, demonstrated that radioactivity uptake in prostatic tissues shows the highest level in the case of administration of LSESR supplemented with [14C]-labelled oleic acid. This was clearly demonstrated on a rat with an induced fibro-muscular hyperplasia of the prostate and by quantitative measurements of radioactivity. Ratios of radioactivity in tissues compared to plasma show an uptake of radioactivity greater in prostate as compared to other genital organs, i.

Cortisol disposition and production rate in horses during rest and exercise.

The influence of a 56-km endurance exercise on cortisol kinetics and production rate was evaluated in six horses administered [3H]cortisol. Exercise resulted in an immediate two- to threefold increase in plasma cortisol, with values returning very rapidly to preexercise levels. During exercise, clearance and steady-state volume of distribution of total cortisol were greatly increased (338 +/- 95 vs.

Pharmacokinetics of 14C-N-N'-dicyclopropyl-methyl-piperazine-dichlorhydrate. 3rd communication: whole-body autoradiographic study in Cynomolgus monkeys after oral administration.

A distribution study was carried out on Cynomolgus monkeys (Macaca fascicularis) dosed orally with 14C-labelled N-N'-dicyclopropyl-methyl-piperazine-dichlor-hydrate 14C-Ino 2628-CZ and sacrificed 2, 8 and 24 h after dosage, using whole-body autoradiography. It is demonstrated that radioactivity is found in all the body; high intakes occur in melanin containing tissues, in blood-forming organs, and in accessory genital glands. Moreover, radioactivity crosses the blood-brain barrier and is mainly localized in hippocampus, caudate, putamen and frontal cortex.

Pharmacokinetics of 14C-N-N'-dicyclopropyl-methyl-piperazine-dichlorhydrate. 2nd communication: tissue distribution in rats.

The distribution of radioactivity in rats after intravenous or oral administration of 14C-labelled N-N'-dicyclopropyl-methyl-piperazine-dichlorhydrate (14C-Ino 2628-CZ) demonstrated that the labelled compound was widely distributed in the body. An important diffusion of the isotope was found in the central nervous system, the gastric mucosa and several glands. Only small amounts of radioactivity were found in these organs 24 h after dosage.

Pharmacokinetics of 14C-N-N'-dicyclopropyl-methyl-piperazine-dichlorhydrate. 1st Communication: balance of elimination, plasma and blood kinetics, metabolism in rats.

N-N'-Dicyclopropyl-methyl-piperazine-dichlorhydrate (Ino 2628-CZ) is a novel inotropic compound. The absorption, distribution, excretion and metabolism of radiochemically labelled 14C-Ino 2628-CZ has been studied in male and female rats after intravenous and oral administration. The compound was mainly excreted during the first 24 h after both administrations, although traces of radioactivity were still measured at 7 days post-dose.

Hematological and plasma biochemical disturbances in experimental molybdenum toxicosis in sheep.

Two groups of 4 sheep received a daily iv injection of sodium heptamolybdate (100mg/day) or of saline for 2 weeks to study the hematological and plasma biochemical effects of molybdenum toxicosis. In molybdenum-dosed sheep, there was hypercupremia, mild anemia due to the decrease of copper concentration in the liver and moderate hepatocellular damage probably due to a direct toxic effect of molybdenum against the liver.

Autoradiographic distribution of [14C]-labelled pimonidazole in rhabdomyosarcoma-bearing rats and pigmented mice.

The hypoxic cell radiosensitizer [2-14C] pimonidazole (2-nitro-alpha-(piperidinomethyl)-l-imidazole ethanol) was injected i.p. into pigmented mice and rats bearing transplanted rhabdomyosarcoma.

Cerebral ventricles of the Friesian cow (Bos taurus L.). Conformation, relations and stereotaxic topography.

Six heifers, aged 8-10 months, and 4 cows, aged 4-12 years, were used for studying the conformation of the cerebral ventricles on mouldings, and the topography on scanographs and frozen cuts. The morphologic changes with age concern the height of the 3rd ventricle, the extension of the pellucid septum and the stereotaxic topography. The stress is put on the variability of the volume of the lateral ventricles and the permanence of a vast and patent recessus olfactorius, with easy external landmarks.