scholarly journals Calcium Binding by Arabinogalactan Polysaccharides Is Important for Normal Plant Development

2020 ◽  
Vol 32 (10) ◽  
pp. 3346-3369 ◽  
Author(s):  
Federico Lopez-Hernandez ◽  
Theodora Tryfona ◽  
Annalisa Rizza ◽  
Xiaolan L. Yu ◽  
Matthew O.B. Harris ◽  
...  
Keyword(s):  
Plant Development ◽  
Calcium Binding ◽  
Normal Plant

scholarly journals Mutations That Reduce Sinapoylmalate Accumulation in Arabidopsis thaliana Define Loci With Diverse Roles in Phenylpropanoid Metabolism

Genetics ◽  
2001 ◽  
Vol 159 (4) ◽  
pp. 1741-1749
Author(s):  
Max Ruegger ◽  
Clint Chapple
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Plant Development ◽  
Phenylpropanoid Metabolism ◽  
Normal Plant ◽  
Wild Type ◽  
Developmentally Regulated ◽  
Recessive Mutations ◽  
Uv Illumination ◽  
Cell Specificity

Abstract The products of phenylpropanoid metabolism in Arabidopsis include the three fluorescent sinapate esters sinapoylglucose, sinapoylmalate, and sinapoylcholine. The sinapoylmalate that accumulates in cotyledons and leaves causes these organs to appear blue-green under ultraviolet (UV) illumination. To find novel genes acting in phenylpropanoid metabolism, Arabidopsis seedlings were screened under UV for altered fluorescence phenotypes caused by changes in sinapoylmalate content. This screen identified recessive mutations at four Reduced Epidermal Fluorescence (REF) loci that reduced leaf sinapoylmalate content. Further analyses showed that the ref mutations affected other aspects of phenylpropanoid metabolism and some led to perturbations in normal plant development. A second class of mutations at the Bright Trichomes 1 (BRT1) locus leads to modest reductions in sinapate ester content; however, the most notable phenotype of brt1 mutants is the development of hyperfluorescent trichomes that appear to contain elevated levels of sinapate esters when compared to the wild type. These results indicate that at least five new loci affecting the developmentally regulated accumulation of phenylpropanoid secondary metabolites in Arabidopsis, and the cell specificity of their distribution, have been identified by screening for altered UV fluorescence phenotypes.

scholarly journals Tobacco genes expressed during in vitro floral initiation and their expression during normal plant development.

1989 ◽  
Vol 1 (1) ◽  
pp. 25-35 ◽  
Author(s):  
D R Meeks-Wagner ◽  
E S Dennis ◽  
K Tran Thanh Van ◽  
W J Peacock
Keyword(s):  
Plant Development ◽  
Floral Initiation ◽  
Normal Plant

Tobacco Genes Expressed during in vitro Floral Initiation and Their Expression during Normal Plant Development

1989 ◽  
Vol 1 (1) ◽  
pp. 25 ◽  
Author(s):  
D. Ry Meeks-Wagner ◽  
Elizabeth S. Dennis ◽  
Kiem Tran Thanh Van ◽  
W. James Peacock
Keyword(s):  
Plant Development ◽  
Floral Initiation ◽  
Normal Plant

EFFECTS OF A HEAVY RAINFALL ON REDOX POTENTIAL AND ACIDITY OF A WATERLOGGED PEAT

1974 ◽  
Vol 54 (2) ◽  
pp. 133-135 ◽  
Author(s):  
V. F. HAAVISTO
Keyword(s):  
Redox Potential ◽  
Plant Development ◽  
Heavy Rainfall ◽  
Normal Plant ◽  
Sphagnum Peat ◽  
Reduction Potentials ◽  
Oxidation Reduction ◽  
Valence States ◽  
Reduced Forms

The oxidation-reduction potentials of the upper 50 cm of a waterlogged, floating, Sphagnum peat mat were reduced an average of 47 mv by heavy rainfall, while expected small but insignificant changes occurred in acidity. Changes of this magnitude in redox potential will significantly alter valence states of some ions and may produce concentrations of the reduced forms that will detrimentally affect normal plant development.

Sign in / Sign up

Export Citation Format

Share Document