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Light and electron microscope studies on pollen development in barley ( Hordeum vulgare L.) grown under copper‐sufficient and deficient conditions
Author(s) -
JEWELL A. W.,
MURRAY B. G.,
ALLOWAY B. J.
Publication year - 1988
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1988.tb01146.x
Subject(s) - tapetum , pollen , microspore , ultrastructure , biology , botany , stamen , hordeum vulgare , electron microscope , sterility , organelle , microbiology and biotechnology , poaceae , optics , physics
. Pollen development in copper‐deficient barley plants is highly irregular resulting in low and variable pollen fertility. The main cause of this sterility was found to be the abnormal development of the tapetum which becomes expansionary and invasive as the pollen develops. The ultrastructure of both tapetum and microspores is different from that of control material with irregularities of exine deposition, endopolyploidy of tapetal nuclei and an alteration of organelle composition being correlated with low fertility.