Evidence of helical thylakoid arrangement by scanning electron microscopy

LászlóA A. Mustárdy, András G.S. Jánossy

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Indirect evidence has been gained recently of the helical arrangement of single thylakoids around grana by serial transmission electron microscopic sections. However, attempts to visualise the three-dimensional structure directly remained unsuccessful, because structural details could not be resolved by scanning electron microscopy on conventionally-prepared samples. By application of the modified thiocarbohydrazide method for isolated grana samples we were able to improve the resolution on such samples below 100 Å and produce thus the first direct evidence for multiple tilted planes in a helically arranged fretwork around the surface of cylindrical grana. This structure leads towards a better understanding of the functional role of grana in photosynthetic processes.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalPlant Science Letters
Volume16
Issue number2-3
DOIs
Publication statusPublished - Oct 1979

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