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The Mn-binding proteins of the photosystem II oxygen-evolving complex are decreased in date palms affected by brittle leaf disease
- Source :
-
Plant Physiology & Biochemistry . Apr2011, Vol. 49 Issue 4, p388-394. 7p. - Publication Year :
- 2011
-
Abstract
- Abstract: Brittle leaf disease or maladie des feuilles cassantes (MFC) is a disorder affecting date palms (Phoenix dactylifera L.) which after a long declining process eventually leads to the death of the plant. No causal agent for the disease has been found so far but leaflets of affected palms are Mn-deficient despite the existence of adequate exchangeable Mn in the soils in which affected palms grow. The disease is specifically associated with an increase in a series of chloroplastic RNAs. A proteomic analysis of leaflets of affected and unaffected date palms showed differences in quantities of several proteins. Mn-binding PSBO and PSBP proteins, components of the oxygen-evolving complex of photosystem II, were decreased in affected tissue, reinforcing the relation between MFC and Mn deficiency. The quantities of other proteins were increased by disease suggesting a response to stress. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09819428
- Volume :
- 49
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Plant Physiology & Biochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 59640773
- Full Text :
- https://doi.org/10.1016/j.plaphy.2011.02.008