scholarly journals Secondary metabolites have more influence than morphophysiological traits on litter decomposability across genotypes of Arabidopsis thaliana

2019 ◽  
Vol 224 (4) ◽  
pp. 1532-1543 ◽  
Author(s):  
Elena Kazakou ◽  
François Vasseur ◽  
Kevin Sartori ◽  
Etienne Baron ◽  
Nick Rowe ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites

Comparative Quantitative Trait Loci Mapping of Aliphatic, Indolic and Benzylic Glucosinolate Production in Arabidopsis thaliana Leaves and Seeds

Genetics ◽  
2001 ◽  
Vol 159 (1) ◽  
pp. 359-370 ◽  
Author(s):  
Daniel J Kliebenstein ◽  
Jonathan Gershenzon ◽  
Thomas Mitchell-Olds
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Plant Environment ◽  
Aliphatic Glucosinolates ◽  
Glucosinolate Concentration ◽  
Indolic Glucosinolates ◽  
The Individual ◽  
Concentration Mapping ◽  
Indolic Glucosinolate ◽  
Aliphatic Glucosinolate

Abstract Secondary metabolites are a diverse set of plant compounds believed to have numerous functions in plant-environment interactions. Despite this importance, little is known about the regulation of secondary metabolite accumulation. We are studying the regulation of glucosinolates, a large group of secondary metabolites, in Arabidopsis to investigate how secondary metabolism is controlled. We utilized Ler and Cvi, two ecotypes of Arabidopsis that have striking differences in both the types and amounts of glucosinolates that accumulate in the seeds and leaves. QTL analysis identified six loci determining total aliphatic glucosinolate accumulation, six loci controlling total indolic glucosinolate concentration, and three loci regulating benzylic glucosinolate levels. Our results show that two of the loci controlling total aliphatic glucosinolates map to biosynthetic loci that interact epistatically to regulate aliphatic glucosinolate accumulation. In addition to the six loci regulating total indolic glucosinolate concentration, mapping of QTL for the individual indolic glucosinolates identified five additional loci that were specific to subsets of the indolic glucosinolates. These data show that there are a large number of variable loci controlling glucosinolate accumulation in Arabidopsis thaliana.

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 Analysis of secondary metabolism and total chlorophyll content provides new insights into the role of A-tocopherol for wild type and VTE4 mutant Arabidopsis thaliana under different abiotic stresses

Genetika ◽  
2016 ◽  
Vol 48 (2) ◽  
pp. 445-462 ◽  
Author(s):  
Amir Khalatbari ◽  
Hawa Jaafar ◽  
Amir Khalatbari ◽  
Maziah Mahmood ◽  
Radziah Othman
Keyword(s):  
Arabidopsis Thaliana ◽  
Salt Stress ◽  
Water Stress ◽  
Secondary Metabolites ◽  
Chlorophyll Content ◽  
Abiotic Stresses ◽  
Total Chlorophyll ◽  
Water Deficiency ◽  
Wild Type ◽  
Total Chlorophyll Content

Plants experience different abiotic stresses under natural conditions including salinity, water deficit, low temperature and high light. Once plants are exposed to these stresses they might have a variety of responses physiologically and biochemically. In this study, we test this hypothesis in wild type Col-0 and vte4 mutant of Arabidopsis thaliana by measuring major secondary metabolites alongside with total chlorophyll content under different abiotic stresses namely salt stress, water stress and prolonged water deficiency. These stresses were imposed to the plants in separate experiments in which each treatment was replicated three times in a complete randomized design with factorial arrangement. It was concluded that under all abiotic stresses wild type Col-0 Arabidopsis plants showed stronger performance in terms of all major metabolites compared to vte4 mutant. ?-tocopherol deficiency in vte4 mutant plants led to lower accumulation of proline, total protein and total amino acids as well as starch and total sugars in comparison with wild type A. thaliana. Furthermore, all five secondary metabolites obtained the highest value under 100mM NaCl concentration (Salt stress), under 50% of field capacity (water stress) and under 8 days of water withholding (prolonged water deficiency). Wild type Col-0 resulted in higher level of total chlorophyll content under all abiotic stresses compared to mutant plants. Therefore, our results suggested that the loss of ?-tocopherol in vte4 mutant A.thaliana under different abiotic stresses affected the efficiency and the stability of central metabolism and photosynthetic apparatus.

scholarly journals Functional Compensation of Primary and Secondary Metabolites by Duplicate Genes in Arabidopsis thaliana

2010 ◽  
Vol 28 (1) ◽  
pp. 377-382 ◽  
Author(s):  
K. Hanada ◽  
Y. Sawada ◽  
T. Kuromori ◽  
R. Klausnitzer ◽  
K. Saito ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Duplicate Genes ◽  
Functional Compensation ◽  
Primary And Secondary Metabolites

scholarly journals Secondary metabolites from the endolichenic fungus Ophiosphaerella korrae

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4140-4149 ◽  
Author(s):  
Yue-Lan Li ◽  
Rong-Xiu Zhu ◽  
Gang Li ◽  
Ning-Ning Wang ◽  
Chun-Yu Liu ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Root Elongation ◽  
Endolichenic Fungus ◽  
Ophiosphaerella Korrae ◽  
New Metabolites

Six new metabolites were isolated from the endolichenic fungus Ophiosphaerella korrae. Ophiokorrin inhibited root elongation in the germination of Arabidopsis thaliana.

scholarly journals Tryptophan-derived secondary metabolites in Arabidopsis thaliana confer non-host resistance to necrotrophic Plectosphaerella cucumerina fungi

2010 ◽  
pp. no-no ◽  
Author(s):  
Andrea Sanchez-Vallet ◽  
Brisa Ramos ◽  
Paweł Bednarek ◽  
Gemma López ◽  
Mariola Piślewska-Bednarek ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Host Resistance ◽  
Plectosphaerella Cucumerina

Profiling of secondary metabolites in root exudates of Arabidopsis thaliana

2014 ◽  
Vol 108 ◽  
pp. 35-46 ◽  
Author(s):  
Nadine Strehmel ◽  
Christoph Böttcher ◽  
Stephan Schmidt ◽  
Dierk Scheel
Keyword(s):  
Arabidopsis Thaliana ◽  
Secondary Metabolites ◽  
Root Exudates
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