| dc.contributor.author |
Tsikou, D |
en |
| dc.contributor.author |
Kalloniati, C |
en |
| dc.contributor.author |
Fotelli, MN |
en |
| dc.contributor.author |
Nikolopoulos, D |
en |
| dc.contributor.author |
Katinakis, P |
en |
| dc.contributor.author |
Udvardi, MK |
en |
| dc.contributor.author |
Rennenberg, H |
en |
| dc.contributor.author |
Flemetakis, E |
en |
| dc.date.accessioned |
2014-06-06T06:52:22Z |
|
| dc.date.available |
2014-06-06T06:52:22Z |
|
| dc.date.issued |
2013 |
en |
| dc.identifier.issn |
00220957 |
en |
| dc.identifier.uri |
http://dx.doi.org/10.1093/jxb/ert015 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/5977 |
|
| dc.subject |
Carbon starvation |
en |
| dc.subject |
Lotus japonicus |
en |
| dc.subject |
Metabolomic analysis |
en |
| dc.subject |
Nodule |
en |
| dc.subject |
Symbiosis |
en |
| dc.subject |
Transcript profile. |
en |
| dc.subject.other |
amino acid |
en |
| dc.subject.other |
carbon |
en |
| dc.subject.other |
carbon dioxide |
en |
| dc.subject.other |
nitrogenase |
en |
| dc.subject.other |
starch |
en |
| dc.subject.other |
vegetable protein |
en |
| dc.subject.other |
antibody specificity |
en |
| dc.subject.other |
article |
en |
| dc.subject.other |
carbon cycle |
en |
| dc.subject.other |
darkness |
en |
| dc.subject.other |
drug effect |
en |
| dc.subject.other |
gene expression profiling |
en |
| dc.subject.other |
gene expression regulation |
en |
| dc.subject.other |
genetic transcription |
en |
| dc.subject.other |
genetics |
en |
| dc.subject.other |
Lotus |
en |
| dc.subject.other |
mass fragmentography |
en |
| dc.subject.other |
metabolism |
en |
| dc.subject.other |
metabolomics |
en |
| dc.subject.other |
nodulation |
en |
| dc.subject.other |
photosynthesis |
en |
| dc.subject.other |
physiology |
en |
| dc.subject.other |
plant gene |
en |
| dc.subject.other |
plant leaf |
en |
| dc.subject.other |
principal component analysis |
en |
| dc.subject.other |
symbiosis |
en |
| dc.subject.other |
Amino Acids |
en |
| dc.subject.other |
Carbon |
en |
| dc.subject.other |
Carbon Cycle |
en |
| dc.subject.other |
Carbon Dioxide |
en |
| dc.subject.other |
Carbon Isotopes |
en |
| dc.subject.other |
Darkness |
en |
| dc.subject.other |
Gas Chromatography-Mass Spectrometry |
en |
| dc.subject.other |
Gene Expression Profiling |
en |
| dc.subject.other |
Gene Expression Regulation, Plant |
en |
| dc.subject.other |
Genes, Plant |
en |
| dc.subject.other |
Lotus |
en |
| dc.subject.other |
Metabolomics |
en |
| dc.subject.other |
Nitrogenase |
en |
| dc.subject.other |
Organ Specificity |
en |
| dc.subject.other |
Photosynthesis |
en |
| dc.subject.other |
Plant Leaves |
en |
| dc.subject.other |
Plant Proteins |
en |
| dc.subject.other |
Principal Component Analysis |
en |
| dc.subject.other |
Root Nodules, Plant |
en |
| dc.subject.other |
Starch |
en |
| dc.subject.other |
Symbiosis |
en |
| dc.subject.other |
Transcription, Genetic |
en |
| dc.title |
Cessation of photosynthesis in Lotus japonicus leaves leads to reprogramming of nodule metabolism |
en |
| heal.type |
journalArticle |
en |
| heal.identifier.primary |
10.1093/jxb/ert015 |
en |
| heal.publicationDate |
2013 |
en |
| heal.abstract |
Symbiotic nitrogen fixation (SNF) involves global changes in gene expression and metabolite accumulation in both rhizobia and the host plant. In order to study the metabolic changes mediated by leaf-root interaction, photosynthesis was limited in leaves by exposure of plants to darkness, and subsequently gene expression was profiled by real-time reverse transcription-PCR (RT-PCR) and metabolite levels by gas chromatography-mass spectrometry in the nodules of the model legume Lotus japonicus. Photosynthetic carbon deficiency caused by prolonged darkness affected many metabolic processes in L. japonicus nodules. Most of the metabolic genes analysed were down-regulated during the extended dark period. In addition to that, the levels of most metabolites decreased or remained unaltered, although accumulation of amino acids was observed. Reduced glycolysis and carbon fixation resulted in lower organic acid levels, especially of malate, the primary source of carbon for bacteroid metabolism and SNF. high amino acid concentrations together with a reduction in total protein concentration indicate possible protein degradation in nodules under these conditions. Interestingly, comparisons between amino acid and protein content in various organs indicated systemic changes in response to prolonged darkness between nodulated and non-nodulated plants, rendering the nodule a source organ for both C and N under these conditions. © 2013 Author(2) [2013]. |
en |
| heal.journalName |
Journal of Experimental Botany |
en |
| dc.identifier.issue |
5 |
en |
| dc.identifier.volume |
64 |
en |
| dc.identifier.doi |
10.1093/jxb/ert015 |
en |
| dc.identifier.spage |
1317 |
en |
| dc.identifier.epage |
1332 |
en |