Alloplasmic effects on mitochondrial transcriptional activity and RNA turnover result in accumulated transcripts of Arabidopsis orfs in cytoplasmic male-sterile Brassica napus.

Mitochondrial transcription was investigated in a cytoplasmic male-sterile (CMS) Brassica napus line with rearranged mitochondrial (mt) DNA mostly inherited from Arabidopsis thaliana. The transcript patterns were compared with the corresponding male-fertile progenitors, B. napus and A.

Modified sucrose, starch, and ATP levels in two alloplasmic male-sterile lines of B. napus.

Alloplasmic lines of Brassica napus with rearranged Arabidopsis thaliana mitochondrial DNA are male sterile and vegetatively altered compared with B. napus cv. Hanna.

Arabidopsis thaliana chromosome III restores fertility in a cytoplasmic male-sterile Brassica napus line with A. thaliana mitochondrial DNA.

Somatic Brassica napus (+) Arabidopsis thaliana hybrids with a cytoplasmic male sterility (CMS)-inducing cytoplasm were screened for fertility-restored plants. One line was selected and recurrently backcrossed with the maintainer line, B. napus, resulting in fertile/sterile segregating populations.

Brassica napus lines with rearranged Arabidopsis mitochondria display CMS and a range of developmental aberrations.

Numerous Brassica napus (+) Arabidopsis thaliana somatic hybrids were screened for male sterility and aberrant flower phenotypes. Nine hybrids were selected and backcrossed recurrently to B. napus.

Kinematic analysis of solute mass flows in rock fractures with spatially random parameters.

Field data of physical properties in heterogeneous crystalline bedrock, like porosity and fracture aperture, is associated with uncertainty that can have a significant impact on the analysis of solute transport in rock fractures. Solutions to the central temporal moments of the residence time probability density function (PDF) are derived in a closed form for a solute Dirac pulse. The solutions are based on a model that takes into account advection along the fracture plane, diffusion into the rock matrix and sorption kinetics in the rock matrix.

Metabolism of prostaglandin F2alpha during fasting in prepubertal gilts.

The study was conducted to investigate a possible mechanism behind earlier observations of fasting-induced increases of blood concentrations of prostaglandin (PG) F2alpha metabolite (P-PG) in gilts. Six animals were fasted for 28 h, then administered i.v.

Aeromonas hydrophila septicaemia in a grey seal (Halichoerus grypus) from the Baltic Sea: a case study.

Aeromonas hydrophila septicaemia in a grey seal (Halichoerus grypus) from the Swedish part of the Baltic Sea is reported. The pathogen was isolated from both lung and spleen specimens. All of the A.

Heparin binding growth factors and the control of teratoma cell proliferation.

The role of basic fibroblast growth factor (bFGF) in the control of teratoma cell proliferation was examined. It was found that bFGF stimulates proliferation at low concentrations but induces cell migration at higher doses. These effects could be efficiently counteracted by addition of protamine sulphate.