Elizabeth E. Rueschhoff

author keywords: Pyridoxine; Pyridoxamine; Pyridoxal kinase; Pyridoxal phosphate synthase

MeSH headings : Arabidopsis / genetics; Arabidopsis / metabolism; Arabidopsis Proteins / genetics; Arabidopsis Proteins / metabolism; Chloroplasts / metabolism; Models, Biological; Pyridoxal Kinase / genetics; Pyridoxal Kinase / metabolism; Vitamin B 6 / metabolism

TL;DR: Comparing two mutants for vitamin B(6)-metabolizing enzymes in Arabidopsis thaliana shows that both mutants share similar phenotypes, including chlorosis, decreased size, altered chloroplast ultrastructure, and root sensitivity to sucrose, and data indicate that some of the phenotypic consequences shared between the pdx1.3 and sos4 mutants are due to B( 6) deficiency in chloroplasts. (via Semantic Scholar)

MeSH headings : Arabidopsis / genetics; Arabidopsis / growth & development; Arabidopsis Proteins / genetics; Arabidopsis Proteins / metabolism; Brassinosteroids; Cholestanols / metabolism; Chromosome Mapping; Cytochrome P-450 Enzyme System / genetics; Cytochrome P-450 Enzyme System / metabolism; DNA, Plant / genetics; Gene Expression Regulation, Developmental; Gene Expression Regulation, Plant; Genetic Complementation Test; Genotype; Mutagenesis, Insertional; Mutation; Ovule / growth & development; Plant Growth Regulators / biosynthesis; Steroids, Heterocyclic / metabolism

TL;DR: The identification of mutations in CYP85A2 as enhancers of the seuss mutant phenotype suggests a previously unrecognized role for brassinolide synthesis in gynoecial and ovule outer integument development and suggests that seuss mutants may be more sensitive to the loss or reduction of brassinlide synthesis than are wild type plants. (via Semantic Scholar)

author keywords: antioxidant; plant abiotic stress; SNZ1; SNO; YaaD; YaaE

MeSH headings : Antioxidants / metabolism; Arabidopsis / metabolism; Arabidopsis Proteins / metabolism; Arabidopsis Proteins / physiology; Carbon-Nitrogen Lyases; Escherichia coli / metabolism; Gene Expression Regulation, Plant; Genes, Plant; Green Fluorescent Proteins / metabolism; Microscopy, Fluorescence; Nitrogenous Group Transferases / metabolism; Nitrogenous Group Transferases / physiology; Oxidative Stress; Phylogeny; Plant Proteins / metabolism; RNA, Messenger / metabolism; Time Factors; Vitamin B 6 / metabolism

TL;DR: All three PDX1 genes and PDX2 were responsive to abiotic stressors including high light, chilling, drought, and ozone, however, the response ofPDX1.2 was disparate from that of the other PDX genes, showing a lessened response to high light , chilling, and drought, but an increased response to ozone. (via Semantic Scholar)