Arabidopsis thaliana mutants deficient for the NRT1.1 NO3 transporter display complex phenotypes, including lowered NO3 uptake, altered development of nascent organs, and reduced stomatal opening. To obtain further insight at the molecular level on the multiple physiological functions of NRT1.1, we performed large-scale transcript profiling by serial analysis of gene expression in the roots of ...

Nitrogen plays a pivotal role in growth and differentiation of cells of Phyllanthus amarus Schum. and Thonn. Both form and amount of nitrogen in nutrient medium have significant effects on the rate of cell growth and differentiation. In this study, effects of different inorganic nutrients (KNO3 and NH4NO3) and organic nutrients (glycine) on regeneration of P. amarus were evaluated. Murashige an...

The Nitra river belongs to the most contaminated rivers in the Slovakia due the previous intensive industrial activity of several enterprises located in its neighborhood. The aim of the study was to estimate the risk of contamination of riverside sediments as well as alluvial soil in vicinity of Nitra river by dangerous heavy metals. Pseudototal content of risk metals (Pb and Cd) including all ...

Background: A consistent practice for mass multiplication of banana cv. Malnad Rasbale has been accomplished, which is an endemic cultivar Western Ghats Karnataka, India. Methods: Decrease in microbial contagion have managed by dealing with outward sterilization agents ethanol, sodium hypochlorite, mercuric chloride solution, antibiotic solutions containing cefotaxime and gentamicin. MS media a...

In recent years, alternative methods to conventional synthesis of MOFs (metal-organic frameworks) have emerged due the problematic use solvents for both environment and human health. Here we present ZIFs (zeolitic imidazolate at high pressure by means a hydraulic press provided with heating mechanism. By optimization parameters such as temperature, time addition promotor NH4NO3, considerable in...

Faujasite (FAU) zeolites (with Si/Al ratio of ca. 1.7) undergo mild dealumination at moderate ion exchange conditions (0.01 to 0.6 M NH4NO3 solutions) resulting in protons circumscribed by sodalite cages becoming accessible for reaction without conspicuous changes bulk crystallinity. The (HSOD) supercages (HSUP) can be systematically manipulated from 0 1 adjusting ammonium concentrations used e...

Algunas especies propagadas in vitro presentan diversos desórdenes fisiológicos, como la hiperhidratación, debido entre otros factores a alta humedad relativa en los recipientes. Por ello es importante conocer el potencial osmótico del medio de cultivo función concentración solutos. En este trabajo se evaluaron varias fuentes carbono: sacarosa, glucosa, manitol, sorbitol y mioinositol, así comp...