Exposure of Vicia faba to sulcotrione pesticide induced genotoxicity

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Nucleotide-sequence and Transcriptional Analysis of a Mitochondrial Plasmid From a Cytoplasmic Male-sterile Line of Sunflower

A mitochondrial plasmid of 1,939 bp (P2) from a cytoplasmic male-sterile line of sunflower has been cloned and sequenced. It presents 437 bp of near-perfect homology to the 1.4-kb mitochondrial plasmid P1 from sunflower. Sequences homologous to P2 were found in nuclear DNA. P2 was transcribed into a major 980-nucleotide (nt) RNA molecule and two minor transcripts of 570 and 520 nt. They were all transcribed from the same strand and within the region nonhomologous to P1. A single 5' boundary and three 3' termini were determined for P2 transcripts. The 5' end is similar to a consensus sequence for plant mitochondrial genes. No evidence of translation products can be provided

Microwave Irradiation Affects Gene Expression in Plants

The physiological impact of nonionizing radiation has long been considered negligible. However, here we use a carefully calibrated stimulation system that mimics the characteristics (isotropy and homogeneity) of electromagnetic fields present in the environment to measure changes in a molecular marker (mRNA encoding the stress-related bZIP transcription factor), and show that low amplitude, short duration, 900 MHz EMF evokes the accumulation of this mRNA. Accumulation is rapid (peaking 5–15 min after stimulation) and strong (3.5-fold), and is similar to that evoked by mechanical stimulations

Synthese, assemblage et structure des complexes chromoproteiniques dans les membranes photosynthetiques

CNRS AR 11685 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc