Fatty acid content during reconstitution of the photosynthetic apparatus in the air-dried leaves of Xerophyta scabrida after rehydration

K. Georgieva, A. Ivanova, S. Doncheva, S. Petkova, D. Stefanov, E. Péli, Z. Tuba

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Desiccation of Xerophyta scabrida caused considerable damage of chloroplast ultrastructure together with a complete loss of chlorophyll. Upon rehydration, the relative water content of the pale-green leaves almost reached that of the dark-green ones, however, the Chl content and photosynthetic activity remained lower. The process of reconstitution of the photosynthetic apparatus in the re-greening leaves was accompanied by changes in fatty acid (FA) content. The amount of the FA methyl esters was more than 2-fold higher in the green leaves as compared to the dry ones and slightly increased after rehydration in the pale-green leaves. Among the three main fatty acids in the leaves, oleic, palmitic and linoleic acid, the latter increased more than 3-fold during rehydration. This acid is concentrated mainly in the glycolipids and this was an indirect indication for the restoration of the photosynthetic apparatus. Our results showed that rehydration of X. scabrida led to a decrease of the saturated FA in parallel with an increase of the unsaturated FA, thus indicating increased membrane permeability. The observed changes in the lipid content can be considered as a characteristic feature of X. scabrida and most probably of other poikilochlorophyllous species.

Original languageEnglish
Pages (from-to)581-585
Number of pages5
JournalBiologia Plantarum
Volume55
Issue number3
DOIs
Publication statusPublished - Jan 1 2011

Fingerprint

air drying
rehydration
fatty acid composition
leaves
glycolipids
membrane permeability
palmitic acid
unsaturated fatty acids
oleic acid
saturated fatty acids
linoleic acid
ultrastructure
chloroplasts
lipid content
fatty acids
water content
chlorophyll
acids

Keywords

  • chlorophyll fluorescence
  • chloroplast ultrastructure
  • oxygen evolution
  • resurrection plants

ASJC Scopus subject areas

  • Plant Science
  • Horticulture

Cite this

Fatty acid content during reconstitution of the photosynthetic apparatus in the air-dried leaves of Xerophyta scabrida after rehydration. / Georgieva, K.; Ivanova, A.; Doncheva, S.; Petkova, S.; Stefanov, D.; Péli, E.; Tuba, Z.

In: Biologia Plantarum, Vol. 55, No. 3, 01.01.2011, p. 581-585.

Research output: Contribution to journalArticle

Georgieva, K. ; Ivanova, A. ; Doncheva, S. ; Petkova, S. ; Stefanov, D. ; Péli, E. ; Tuba, Z. / Fatty acid content during reconstitution of the photosynthetic apparatus in the air-dried leaves of Xerophyta scabrida after rehydration. In: Biologia Plantarum. 2011 ; Vol. 55, No. 3. pp. 581-585.
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