ABSTRACT
Sko1 plays a key role in the control of gene expression by osmotic and oxidative stress in yeast. We demonstrate that the decrease in chronological lifespan (CLS) of hog1Δ cells was suppressed by SKO1 deletion. sko1Δ single mutant cells were shown to have a longer CLS, thus implicating Sko1 in the regulation of their CLS.
Subject(s)
Basic-Leucine Zipper Transcription Factors/genetics , Gene Deletion , Repressor Proteins/genetics , Saccharomyces cerevisiae Proteins/genetics , Saccharomyces cerevisiae/genetics , Saccharomyces cerevisiae/physiology , Gene Expression Regulation, Fungal , Genes, Fungal , Mutation , Osmotic Pressure , Oxidative Stress , Saccharomyces cerevisiae/metabolismABSTRACT
A new species of the pardaliscid amphipod, Nicippe recticaudata, from off Cape Toi, Japan, is named and described. This is the first record of Nicippe Bruzelius, 1859 from the western Pacific coast of the Japanese archipelago. Additionally, nucleotide sequences of nuclear 28S ribosomal RNA and histone H3 as well as mitochondrial cytochrome c oxidase subunit I (COI) and 16S ribosomal RNA from the holotype and paratypes were determined. The morphological characteristics and the COI distance values enforced the distinctiveness of N. recticaudatasp. n. among the known Nicippe species. Nicippe recticaudatasp. n. closely resembles N. tumida Bruzelius, 1859 in having a two-dentate posterior margin of usoromite 1. However, the former is distinguished from the latter by the posterior margin of merus of pereopod 4 with 5-6 setae, anterior margin of merus of pereopod 5 with 9-10 setae, and telson with straight inner margin, tapering proximally. A key to the species of Nicippe is provided.
