Showing papers on "Arabidopsis published in 1979"
TL;DR: Normal development is described in Arabidopsis thaliana, strain “Columbia,” and a method of classifying embryo-lethal mutants as cellular, nutritional, or developmental lethals is presented, and the potential application of these mutants to the study of normal embryo development is discussed.
148 citations
TL;DR: In this article, a progressive decline of leaf formation capacity was observed in long-term cultures of Arabidopsis callus on 2,4-D. It corresponded to a gradual loss of activity of total peroxidase and of specific isoperoxidases.
19 citations
TL;DR: A mutant of Arabidopsis, A-154, responds favorably to exogenous feeding of formate as measured by an increase in dry weight and pigment content, and some of the key enzymes in C-1 metabolism are low in the mutant.
1 citations
TL;DR: Fourteen corrected strains previously obtained by treating three thiamine mutants of Arabidopsis thaliana (L.) Heynh with bacterial DNA were analysed for phenotypic expression in various culture conditions and for genetic behavior in outcrosses, suggesting allelism.
Abstract: Fourteen corrected strains previously obtained by treating three thiamine mutants of Arabidopsis thaliana (L.) Heynh. with bacterial DNA were analysed for phenotypic expression in various culture conditions and for genetic behavior in outcrosses. Three classes of plants could be recognized: 1) variegated strains phenotypically similar to viable mutants at the th-2 locus, 2) plants green at 22 °C but showing abnormal phenotypes (reversible by thiamine treatment) when grown at lower temperature (16 °C) in the presence of glucose, 3) green plants insensitive to temperature and glucose. Plants of the first class were compared to two th-2 mutants from which they differed in response to various metabolites, and, most strikingly, to a mixture of thiazole and pyrimidine. From crosses between variegated corrected plants and th-2 mutants, variegated F1 progenies were obtained, suggesting allelism. However, control crosses between th-2 and tz or py mutants indicated incomplete complementation, making conclusions fro...