Changes in chloroplast morphology of different parenchyma cells in leaves of Haberlea rhodopensis Friv. during desiccation and following rehydration

H. Nagy-Déri, E. R. Péli, K. Georgieva, Z. Tuba

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The size, shape, and number of chloroplasts in the palisade and spongy parenchyma layers of Haberlea rhodopensis leaves changed significantly during desiccation and following rehydration. The chloroplasts became smaller and more rounded during desiccation, and aggregated in the middle of the cell. The size and number of chloroplasts in the palisade parenchyma cells were higher than in spongy parenchyma. The good correlation observed between the size or number of chloroplasts and the cross-sectional area of mesophyll cells, the cross-sectional width of the leaf and its water content suggested that the palisade cells were more responsive to water availability than the spongy cells. Changes in chloroplast number during desiccation and rehydration process are characteristic features for desiccation-tolerant plants (especially in homoiochlorophyllous strategy).

Original languageEnglish
Pages (from-to)119-126
Number of pages8
JournalPhotosynthetica
Volume49
Issue number1
DOIs
Publication statusPublished - Mar 1 2011

Keywords

  • chloroplast
  • desiccation tolerance
  • homoiochlorophyllous
  • mesophyll
  • palisade parenchyma
  • spongy parenchyma

ASJC Scopus subject areas

  • Physiology
  • Plant Science

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