| dc.contributor.author |
Fotelli, MN |
en |
| dc.contributor.author |
Tsikou, D |
en |
| dc.contributor.author |
Kolliopoulou, A |
en |
| dc.contributor.author |
Aivalakis, G |
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 |
2014-06-06T06:51:24Z |
|
| dc.date.available |
2014-06-06T06:51:24Z |
|
| dc.date.issued |
2011 |
en |
| dc.identifier.issn |
00220957 |
en |
| dc.identifier.uri |
http://dx.doi.org/10.1093/jxb/err009 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/5490 |
|
| dc.subject |
δ 13C abundance |
en |
| dc.subject |
13C labelling |
en |
| dc.subject |
dark CO 2 fixation |
en |
| dc.subject |
malate metabolism |
en |
| dc.subject |
symbiotic N fixation |
en |
| dc.subject.other |
carbon |
en |
| dc.subject.other |
carbon dioxide |
en |
| dc.subject.other |
malic acid derivative |
en |
| dc.subject.other |
antibody specificity |
en |
| dc.subject.other |
article |
en |
| dc.subject.other |
biological model |
en |
| dc.subject.other |
carbon cycle |
en |
| dc.subject.other |
cytology |
en |
| dc.subject.other |
darkness |
en |
| dc.subject.other |
gene expression profiling |
en |
| dc.subject.other |
gene expression regulation |
en |
| dc.subject.other |
genetics |
en |
| dc.subject.other |
Lotus |
en |
| dc.subject.other |
metabolism |
en |
| dc.subject.other |
nodulation |
en |
| dc.subject.other |
oxidation reduction reaction |
en |
| dc.subject.other |
photosynthesis |
en |
| dc.subject.other |
plant stem |
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 |
Gene Expression Profiling |
en |
| dc.subject.other |
Gene Expression Regulation, Plant |
en |
| dc.subject.other |
Lotus |
en |
| dc.subject.other |
Malates |
en |
| dc.subject.other |
Models, Biological |
en |
| dc.subject.other |
Organ Specificity |
en |
| dc.subject.other |
Oxidation-Reduction |
en |
| dc.subject.other |
Photosynthesis |
en |
| dc.subject.other |
Plant Root Nodulation |
en |
| dc.subject.other |
Plant Stems |
en |
| dc.subject.other |
Lotus corniculatus var. japonicus |
en |
| dc.subject.other |
Mesorhizobium loti |
en |
| dc.title |
Nodulation enhances dark CO 2 fixation and recycling in the model legume Lotus japonicus |
en |
| heal.type |
journalArticle |
en |
| heal.identifier.primary |
10.1093/jxb/err009 |
en |
| heal.publicationDate |
2011 |
en |
| heal.abstract |
During symbiotic nitrogen fixation (SNF), the nodule becomes a strong sink for photosynthetic carbon. Here, it was studied whether nodule dark CO 2 fixation could participate in a mechanism for CO 2 recycling through C4-type photosynthesis. Differences in the natural δ 13C abundance between Lotus japonicus inoculated or not with the N-fixing Mesorhizobium loti were assessed. 13C labelling and gene expression of key enzymes of CO 2 metabolism were applied in plants inoculated with wild-type or mutant fix - (deficient in N fixation) strains of M. loti, and in non-inoculated plants. Compared with non-inoculated legumes, inoculated legumes had higher natural δ 13C abundance and total C in their hypergeous organs and nodules. In stems, 13C accumulation and expression of genes coding for enzymes of malate metabolism were greater in inoculated compared with non-inoculated plants. Malate-oxidizing activity was localized in stem xylem parenchyma, sieve tubes, and photosynthetic outer cortex parenchyma of inoculated plants. In stems of plants inoculated with fix - M. loti strains, 13C accumulation remained high, while accumulation of transcripts coding for malic enzyme isoforms increased. A potential mechanism is proposed for reducing carbon losses during SNF by the direct reincorporation of CO 2 respired by nodules and the transport and metabolism of C-containing metabolites in hypergeous organs. © 2011 The Author(s). |
en |
| heal.journalName |
Journal of Experimental Botany |
en |
| dc.identifier.issue |
8 |
en |
| dc.identifier.volume |
62 |
en |
| dc.identifier.doi |
10.1093/jxb/err009 |
en |
| dc.identifier.spage |
2959 |
en |
| dc.identifier.epage |
2971 |
en |