Ultrastructure of the endosperm haustorium in Trifolium pratense L

Bakar H. N., Algan G.

Acta Biologica Cracoviensia Series Botanica, cilt.40, sa.1-2, ss.15-19, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 1-2
  • Basım Tarihi: 1998
  • Dergi Adı: Acta Biologica Cracoviensia Series Botanica
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.15-19
  • Anahtar Kelimeler: Trifolium pratense L., endosperm haustorium, ultrastructure, EMBRYO, FERTILIZATION, LIGHT
  • Ankara Üniversitesi Adresli: Evet

Özet

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.