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A VIRESCENS MUTANT OF PHASEOLUS VULGARIS ; GROWTH, PIGMENT AND PLASTID CHARACTERS
Author(s) -
DALE J. E.,
HEYES J. K.
Publication year - 1970
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.1469-8137.1970.tb02458.x
Subject(s) - plastid , mutant , phaseolus , chlorophyll , biology , greening , botany , pigment , chloroplast , chlorophyll a , horticulture , biochemistry , chemistry , ecology , gene , organic chemistry
S ummary A slow‐greening mutant growing at a slower rate than control plants is described. Mutant plants produce less chlorophyll than control plants, and their rate of production of pigment is lower. There is some evidence that chlorophyll is broken down in the mutant under high light conditions. Plastid numbers per leaf cell are similar in control and mutant, but a reduction in leaf cell number in the mutant results in their containing fewer plastids per leaf. The slow accumulation of chlorophyll by plastids of the mutant is correlated with a slow development of plastid fine structure, in particular in stacking of grana, as seen by electron microscopy.