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ONTOGENETIC CHANGES IN DNA CONTENT IN ROOTS OF THE WATER FERN AZOLLA FILICULOIDES
Author(s) -
Kurth Eva,
Gifford Ernest M.
Publication year - 1985
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1985.tb08437.x
Subject(s) - biology , fern , azolla , botany , dna , ontogeny , genetics
The DNA content of the apical cell and various other cells in the roots of Azolla filiculoides was determined by two‐wavelength cytospectrophotometry. DNA content decreased markedly with increasing age of the apical cell; there was a similar but less pronounced trend in the other cell populations studied. These findings suggest the possibility of DNA amplification in very young roots with rapidly dividing cells.