Changes of Chloroplast Ultrastructure and Carbohydrate Level in Festuca, Achillea and Sedum During Drought and After Recovery

I. MaróTi, Z. Tuba, M. Csik

Research output: Article

23 Citations (Scopus)

Abstract

The changes of chloroplast ultrastructure and carbohydrate level in C4 sclerophyllous Festuca vaginata, C3 malacophyllous Achillea ochroleuca and CAM succulent Sedum sexangulare were investigated during naturally induced drought and after subsequent recovery. Chloroplasts of the species show some characteristic changes due to drought: decreased volume, permanent adhesions within the grana, partitions become thinner, lipid droplets increase in number and size. Contraction of the stroma, swelling and blistering of thylakoids are characteristic of Sedum chloroplast and mesophyll chloroplasts of Festuca. Structure of bundle sheath chloroplasts of C4 Festuca scarcely shows changes during drought and after recovery. During drought and subsequent recovery in the chloroplasts onf Achillea the slightest changes of the stromal and grana lamellae region can be observed. During drought starch grains are characteristic of chloroplasts of Achillea and Sedum; they disappear after recovery. Achillea and Sedum leaves contain more starch during drought than after recovery, while the starch content in Festuca is unchanged. There is more soluble sugar in Festuca and Sedum during drought than after recovery, although the amount of soluble sugar in Achillea is decreased during drought.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalJournal of Plant Physiology
Volume116
Issue number1
DOIs
Publication statusPublished - jan. 1 1984

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

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