Open AccessFine structure of plastids during androgenesis in Hordeum vulgare L.
Author(s) -
Fortunat Młodzianowski,
Krystyna Idzikowska
Publication year - 2014
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1980.018
Subject(s) - plastid , hordeum vulgare , nucleoid , biology , organelle , thylakoid , microspore , botany , chloroplast , pollen , microbiology and biotechnology , poaceae , biochemistry , gene , stamen , escherichia coli
The fine structure of plastids was studied in the course of androgenesis in in the pollen of Hordeum vulgare L. It was found that these organelles occur in all stages of androgenesis. Their structure was simple and was frequently manifested on the cross section only by the presence of the envelope and matrix of different degree of density. Single thylakoids, nucleoid-like regions and starch grains were, however, also noted. The structure of plastids in embryoids formed from microspores of barley was compared with embryos developed from fertilized egg cell, and we did not found any fundamental differences between them. However, only plastid ribosomes were difficult to identify on ultrathin sections in embryoids and in the embryos