Learn More
The identification of a family of NAR2-type genes in higher plants showed that there was a homolog in Arabidopsis (Arabidopsis thaliana), AtNAR2.1. These genes encode part of a two-component nitrate high-affinity transport system (HATS). As the Arabidopsis NRT2 gene family of nitrate transporters has been characterized, we tested the idea that AtNAR2.1 and(More)
Genomic projects heavily depend on genome annotations and are limited by the current deficiencies in the published predictions of gene structure and function. It follows that, improved annotation will allow better data mining of genomes, and more secure planning and design of experiments. The purpose of the GeneFarm project is to obtain homogeneous,(More)
The effect of supplying either nitrate or ammonium on nitrate reductase activity (NRA) was investigated in Brassica napus seedlings. In roots, nitrate reductase activity (NRA) increased as a function of nitrate content in tissues and decreased when ammonium was the sole nitrogen source. Conversely, in the shoots (comprising the cotyledons and hypocotyl),(More)
The PII signal transducing protein is involved in carbon/nitrogen (C/N) sensing in bacteria and cyanobacteria. In higher plants the function of the PII homolog GLB1 is not known. GLB1 transcripts were found in all plant organs tested, while in Arabidopsis leaves GLB1 expression and PII protein levels were not significantly affected by either the day/night(More)
Nitrate transporters are important for nitrogen acquisition by plants and in algae some require two gene products, NRT2 and NAR2, for function. The NRT2 family was already described and the recent identification of a family of the NAR2-type genes in higher plants showed that there was a homologue in Arabidopsis, AtNAR2.1. Using heterologous expression in(More)
INTRODUCTION Pulmonary diseases during the course of generalised amyloidosis are principally represented by tracheobronchial involvement and diffuse parenchymal localizations. CASE REPORT The authors report the case of a 66-year-old woman presenting with pleural amyloidosis in the context of generalised amyloidosis. Thoracoscopy performed in the(More)
Thoracic endometriosis is a rare disease, which presents in women at a mean age of 35 years, later than for pelvic endometriosis. There are no known predisposing factors for the condition and its pathogenesis is not yet clearly established. The symptoms always appear in connection with the periods of the person affected by the condition, occurring within(More)
INTRODUCTION Pulmonary epithelioid haemangioendothelioma (PEH) is a rare vascular tumour of intermediate malignancy that predominantly affects women. CLINICAL CASE REPORTS We report three cases of PEH. Though all three diagnoses were confirmed by surgical biopsy, it is notable that, in one case, a tracheal biopsy by flexible bronchoscopy was contributory.(More)