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CHLOROPLASTS OF MONOPLOID AND DIPLOID OENOTHERA HOOKERI
Author(s) -
Lee Lily P.,
Hecht Adolph
Publication year - 1975
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.1537-2197.1975.tb12353.x
Subject(s) - biology , ploidy , chloroplast , botany , oenothera , chlorophyll , photosynthesis , genetics , gene
Comparison of leaves from diploid Oenothera hookeri plants with leaves of their monoploid derivatives revealed the following differences: the leaves of the diploids are almost twice as thick as those of the monoploids; the diploids have only one‐fifth as many cells per unit leaf area as do the monoploids; leaf tissue of the diploids has an average of 36.3 chloroplasts per cell compared with 27.4 for the monoploids; chloroplasts of the diploids average 4.68 μm in length, those of the monoploids, 3.74 μm; chloroplasts from the diploids contain about seven times more chlorophyll than those of the monoploids and have an average of seven thylakoids per granum compared with an average of only three for the monoploids; the average chlorophyll a / b ratio for the diploid chloroplasts is 2.98 compared with 3.48 for the monoploids.