Light and Electron Microscopic Study on the Mycorrhizae of Sporophytes of Botrychium virginianum - Arbuscular Structure Resembling Fossil Forms

G. Kovács, I. Kottke, F. Oberwinkler

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The mycorrhizal structures of the sporophyte of the strictly protected fern Botrychium virginianum were studied by light and electron microscopy. The paper presented here is the first ultrastructural study of the mycorrhiza of the sporophyte of the genus Botrychium. The fungal colonization is restricted to two to three cell layers of the root cortex. The sometimes bifurcately ramifying hyphae form coils in the host cells. Single hypha arising from the coils penetrates into neighbouring cells and form arbuscules therein. The electron micrographs show high functional activity of the arbuscules, characterized by high glycogen-like content in the hyphae, a thin layer of filamentous matrix material in the interface between fungus and root cell, frequent cell organelles in the cytoplasm and lack of starch in the host cells containing arbuscules. The main distinctive feature of the mycorrhizae of Botrychium virginianum is the morphology of the arbuscules, which differs not only from the common fine-branched arbuscules, but also from the special structures reported previously from Ophioglossaceae. The robust, lobe-like branching arbuscules most resemble arbuscule structures found in Triassic fossils.

Original languageEnglish
Pages (from-to)574-580
Number of pages7
JournalPlant Biology
Volume5
Issue number5
DOIs
Publication statusPublished - Sep 2003

Fingerprint

Botrychium
sporophyte
sporophytes
mycorrhiza
mycorrhizae
fossils
cell organelle
electrons
fossil
electron
cytoplasm
fern
electron microscopy
starch
hyphae
microscopy
Triassic
colonization
fungus
cells

Keywords

  • Arbuscular mycorrhiza
  • Botrychium
  • Structure
  • TEM

ASJC Scopus subject areas

  • Plant Science

Cite this

Light and Electron Microscopic Study on the Mycorrhizae of Sporophytes of Botrychium virginianum - Arbuscular Structure Resembling Fossil Forms. / Kovács, G.; Kottke, I.; Oberwinkler, F.

In: Plant Biology, Vol. 5, No. 5, 09.2003, p. 574-580.

Research output: Contribution to journalArticle

@article{b0ae3772aff24fd88e76fe2cc29f0202,
title = "Light and Electron Microscopic Study on the Mycorrhizae of Sporophytes of Botrychium virginianum - Arbuscular Structure Resembling Fossil Forms",
abstract = "The mycorrhizal structures of the sporophyte of the strictly protected fern Botrychium virginianum were studied by light and electron microscopy. The paper presented here is the first ultrastructural study of the mycorrhiza of the sporophyte of the genus Botrychium. The fungal colonization is restricted to two to three cell layers of the root cortex. The sometimes bifurcately ramifying hyphae form coils in the host cells. Single hypha arising from the coils penetrates into neighbouring cells and form arbuscules therein. The electron micrographs show high functional activity of the arbuscules, characterized by high glycogen-like content in the hyphae, a thin layer of filamentous matrix material in the interface between fungus and root cell, frequent cell organelles in the cytoplasm and lack of starch in the host cells containing arbuscules. The main distinctive feature of the mycorrhizae of Botrychium virginianum is the morphology of the arbuscules, which differs not only from the common fine-branched arbuscules, but also from the special structures reported previously from Ophioglossaceae. The robust, lobe-like branching arbuscules most resemble arbuscule structures found in Triassic fossils.",
keywords = "Arbuscular mycorrhiza, Botrychium, Structure, TEM",
author = "G. Kov{\'a}cs and I. Kottke and F. Oberwinkler",
year = "2003",
month = "9",
doi = "10.1055/s-2003-44786",
language = "English",
volume = "5",
pages = "574--580",
journal = "Acta Botanica Neerlandica",
issn = "1435-8603",
publisher = "Wiley-Blackwell",
number = "5",

}

TY - JOUR

T1 - Light and Electron Microscopic Study on the Mycorrhizae of Sporophytes of Botrychium virginianum - Arbuscular Structure Resembling Fossil Forms

AU - Kovács, G.

AU - Kottke, I.

AU - Oberwinkler, F.

PY - 2003/9

Y1 - 2003/9

N2 - The mycorrhizal structures of the sporophyte of the strictly protected fern Botrychium virginianum were studied by light and electron microscopy. The paper presented here is the first ultrastructural study of the mycorrhiza of the sporophyte of the genus Botrychium. The fungal colonization is restricted to two to three cell layers of the root cortex. The sometimes bifurcately ramifying hyphae form coils in the host cells. Single hypha arising from the coils penetrates into neighbouring cells and form arbuscules therein. The electron micrographs show high functional activity of the arbuscules, characterized by high glycogen-like content in the hyphae, a thin layer of filamentous matrix material in the interface between fungus and root cell, frequent cell organelles in the cytoplasm and lack of starch in the host cells containing arbuscules. The main distinctive feature of the mycorrhizae of Botrychium virginianum is the morphology of the arbuscules, which differs not only from the common fine-branched arbuscules, but also from the special structures reported previously from Ophioglossaceae. The robust, lobe-like branching arbuscules most resemble arbuscule structures found in Triassic fossils.

AB - The mycorrhizal structures of the sporophyte of the strictly protected fern Botrychium virginianum were studied by light and electron microscopy. The paper presented here is the first ultrastructural study of the mycorrhiza of the sporophyte of the genus Botrychium. The fungal colonization is restricted to two to three cell layers of the root cortex. The sometimes bifurcately ramifying hyphae form coils in the host cells. Single hypha arising from the coils penetrates into neighbouring cells and form arbuscules therein. The electron micrographs show high functional activity of the arbuscules, characterized by high glycogen-like content in the hyphae, a thin layer of filamentous matrix material in the interface between fungus and root cell, frequent cell organelles in the cytoplasm and lack of starch in the host cells containing arbuscules. The main distinctive feature of the mycorrhizae of Botrychium virginianum is the morphology of the arbuscules, which differs not only from the common fine-branched arbuscules, but also from the special structures reported previously from Ophioglossaceae. The robust, lobe-like branching arbuscules most resemble arbuscule structures found in Triassic fossils.

KW - Arbuscular mycorrhiza

KW - Botrychium

KW - Structure

KW - TEM

UR - http://www.scopus.com/inward/record.url?scp=0344719449&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0344719449&partnerID=8YFLogxK

U2 - 10.1055/s-2003-44786

DO - 10.1055/s-2003-44786

M3 - Article

VL - 5

SP - 574

EP - 580

JO - Acta Botanica Neerlandica

JF - Acta Botanica Neerlandica

SN - 1435-8603

IS - 5

ER -