We describe several yeast nuclear mutations that specifically block expression of the mitochondrial genes encoding cytochrome c oxidase subunits II (COXII) and III (C O X III). These recessive mutations define positive regulators of mitochondrial gene expression that act at the level of translation. Mutations in the nuclear gene P E T \ \ \ completely block accumulation of C O X II, but the C O...

Severe decline was observed on a mature stand of western hemlock (Tsuga heterophylla) (Fig. 1) in late August 2021 during the Forestry Commission's annual aerial surveillance for Phytophthora ramorum south-west England. Site visits followed September to investigate cause decline. Affected trees showed crown dieback, needle drop, branch and stem cankers. Mortality young, regenerated understorey ...

Background Varicocele (VCL) is characterized by a progressive disorder which is defined by tortuosity of the pampiniform plexus veins that exerts bilateral impacts. 50-60 percent of males with infertility problems are suffering from VCL. Considering VCL-induced massive problems in human fertilizing potential, investigating different aspects of VCL-induced derangements is gaining considerable at...

H vigor, or heterosis, in higher plants is often attained through the use of cytoplasmic male sterility (CMS), a maternally inherited trait characterized by the absence of functional pollen. Hybrids of many plants are produced using CMS, wherein a male-sterile line is grown adjacent to a selected male-fertile line, which functions as a pollen source. Seed formed on the male-sterile line is then...

Mutations in the nuclear gene PETl I I are recessive and specifically block accumulation of cytochrome c oxidase subunit I1 (coxII), the product of a mitochondrial gene. However, the cox11 mRNA is present in p e t l I I mutants at a level approximately one-third that of wild type. The simplest explanation for this phenotype is that PETl I I is required for translation of the cox11 mRNA. The red...

Background: Polyunsaturated n-3 fatty acids (n-3 PUFAs) are reported to protect against high fat diet-induced obesity and inflammation in adipose tissue. Here we aimed to investigate if the amount of sucrose in the background diet influences the ability of n-3 PUFAs to protect against diet-induced obesity, adipose tissue inflammation and glucose intolerance. Methodology/Principal Findings: We f...