Change search
ReferencesLink to record
Permanent link

Direct link
Plasmodesmata distribution and sugar partitioning in nitrogen-fixing root nodules of Datisca glomerata
Stockholm University, Faculty of Science, Department of Botany.
Show others and affiliations
2011 (English)In: Planta, ISSN 0032-0935, E-ISSN 1432-2048, Vol. 233, no 1, 139-152 p.Article in journal (Refereed) Published
Abstract [en]

To understand carbon partitioning in roots and nodules of Datisca glomerata, activities of sucrose-degrading enzymes and sugar transporter expression patterns were analyzed in both organs, and plasmodesmal connections between nodule cortical cells were examined by transmission electron microscopy. The results indicate that in nodules, the contribution of symplastic transport processes is increased in comparison to roots, specifically in infected cells which develop many secondary plasmodesmata. Invertase activities are dramatically reduced in nodules as compared to roots, indicating that here the main enzyme responsible for the cleavage of sucrose is sucrose synthase. A high-affinity, low-specificity monosaccharide transporter whose expression is induced in infected cells prior to the onset of bacterial nitrogen fixation, and which has an unusually low pH optimum and may be involved in turgor control or hexose retrieval during infection thread growth.

Place, publisher, year, edition, pages
2011. Vol. 233, no 1, 139-152 p.
Keyword [en]
Actinorhiza, Frankia, Invertase, Rutinose, Sucrose synthase, Sugar transport
National Category
Research subject
Plant Physiology
URN: urn:nbn:se:su:diva-54397DOI: 10.1007/s00425-010-1285-8ISI: 000285782100012OAI: diva2:393687
Available from: 2011-02-03 Created: 2011-01-31 Last updated: 2012-01-23Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Pawlowski, Katharina
By organisation
Department of Botany
In the same journal

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 42 hits
ReferencesLink to record
Permanent link

Direct link