Ultrastructure of the endosperm haustorium in Trifolium pratense L

Bakar H. N., Algan G.

Acta Biologica Cracoviensia Series Botanica, vol.40, no.1-2, pp.15-19, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 1-2
  • Publication Date: 1998
  • Journal Name: Acta Biologica Cracoviensia Series Botanica
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.15-19
  • Keywords: Trifolium pratense L., endosperm haustorium, ultrastructure, EMBRYO, FERTILIZATION, LIGHT
  • Ankara University Affiliated: Yes

Abstract

The behavior and ultrastructure of the endosperm haustorium was studied in the natural tetraploid Trifolium pratense L. (Leguminosae). The lower portion of the endosperm generally remains free-nuclear and functions as an aggressive haustorium. The haustorium contains dense cytoplasm with many free nuclei, which usually aggregate in groups of 2-4. The haustorium presumably transports metabolites from the adjacent tissues to the developing endosperm proper. It is functional up to the late heart-shaped stage of embryo development.