in order to study the effect of mineral nutrient and salicylic acid on the fruit yield and yield components of coriander, a study was conducted in experimental field of gorgan university during 2007. the experiment was laid out in randomized block design with ten treatments (salicylic acid, nitrogen, phosphorus, potassium, magnesium, zinc, iron, boron, molybdenum and control) in three replicati...

The yeast ZRT1 zinc transporter is regulated by zinc at both transcriptional and post-translational levels. At the post-translational level, zinc inactivates ZRT1 by inducing the removal of the protein from the plasma membrane by endocytosis. The zinc transporter is subsequently degraded in the vacuole. This regulatory system allows for the rapid shut off of zinc uptake activity in cells expose...

Abscisic acid (ABA) is a phytohormone that plays a fundamental role in plant development and stress response, especially in the regulation of stomatal closure in response to water deficit stress. The signal transduction that occurs in response to ABA and drought stress is mediated by protein phosphorylation and ubiquitination. This research identified Arabidopsis thaliana RING ZINC-FINGER PROTE...

Physical protection of soil carbon (C) is one of the important components of C storage. However, its exact mechanisms are still not sufficiently lucid. The goal of this study was to explore the influence of soil structure, that is, soil pore spatial arrangements, with and without presence of plant residue on (i) decomposition of added plant residue, (ii) CO2 emission from soil, and (iii) struct...

Aminopeptidase A (EC 3.4.11.7; APA) is a 130 kDa membrane-bound zinc enzyme that contains the consensus sequence HEXXH (residues 385-389) conserved among the zinc metalloprotease family. In this motif, both histidine residues and the glutamic residue were shown to be involved respectively in zinc co-ordination and catalytic activity. Treatment of APA with N-acetylimidazole results in a loss of ...

Allelopathic effects of plant residues is an important research avenue regarding optimization of rotation systems in agronomy. The aim of this study was to investigate the allelopathic effects of four plant residues, namely, black cumin, dragonhead, dill, and soybean on the germination and growth of wheat (Triticum aestivum) in different cropping systems. Results showed that applicatio...

A novel active site has been identified in a family of zinc-dependent metalloendopeptidases that includes bacterial proteinase III, the human and Drosophila insulin-degrading enzymes, and the processing-enhancing protein subunit of the mitochondrial processing proteinase. None of these enzymes contains the conserved active site described in most other metalloendopeptidases, HEXXH; instead, all ...

Metallurgical dusts are by-products from steel manufacturing. The high iron content of cast house dust (~64%) makes this by-product an interesting feedstock alternative. Therefore, its return into the internal steelmaking circuit, specifically in sinter plant, is a common practice industry. However, fraction also contains heavy metals, as zinc. As result re-entry zinc process, concentration bla...