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Nuclear DNA content in root cells of Lotus and Trifolium colonized by the VAM fungus, Glomus versiforme
Author(s) -
Blair D. A.,
Peterson R. L.,
Bowley S. R.
Publication year - 1988
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1988.tb03705.x
Subject(s) - biology , lotus , nuclear dna , endoreduplication , botany , fungus , cell , mitochondrial dna , genetics , cell cycle , gene
SUMMARY Nuclear DNA content of root cortical cells of Lotus pedunculatus Cav., Lotus corniculatus L. and Trifolium pratense L. was determined using a microspectrophotometer. Infected and uninfected roots from plants which had been colonized with the fungus, Glomus versiforme (Daniels and Trappe) Berch and roots from non‐inoculated plants were compared. Relative DNA contents for cortical cell nuclei of the three hosts were within the 2–4C range for uninfected root cells. There was no evidence that the VAM fungus, G. versiforme , induced endoreduplication of cortical cell nuclei during infection of these forage legumes. Nuclear enlargement reported in other studies of VAM colonization is likely to involve mechanisms of nuclear enlargement other than DNA endoreduplication.