Abstract
Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide which is not converted to chlorophyllide upon illumination of the leaves. The fine structure of the proplastids is not affected by the treatment. When leaves containing "inactive" protochlorophyllide are exposed to light of 700 ft-c for 3 hours, they lose practically all their green pigments. During this period large stacks of closed membrane structures are built up in the region of the prolamellar body. These lamellar structures remain even when no or only traces of pigment are left in the leaves. In untreated control leaves the pigment content remained constant during similar illumination and the structural changes in the plastids consisted of a rearrangement of the vesicles from the prolamellar bodies into strands dispersed through the stroma; lamellae and grana formation occurred later.
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Claims 8
Claim · model-written summary
Etiolated bean leaves fed delta-amino-levulinic acid in the dark synthesized large amounts of protochlorophyllide that was not converted to chlorophyllide on illumination.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e1“which is not converted to chlorophyllide upon illumination of the leaves”
Claim · model-written summary
The fine structure of the proplastids was not affected by the treatment.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e2“The fine structure of the proplastids is not affected by the treatment”
Claim · model-written summary
Leaves exposed to light of 700 ft-c for 3 hours lost practically all their green pigments, compared with untreated control leaves.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e3“are exposed to light of 700 ft-c for 3 hours, they lose practically all their green pigments”
e4“In untreated control leaves the pigment content remained constant during similar illumination”
Claim · model-written summary
Large stacks of closed membrane structures were built up in the region of the prolamellar body during this period.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e5“During this period large stacks of closed membrane structures are built up in the region of the prolamellar body”
Claim · model-written summary
Lamellar structures remained even when no or only traces of pigment were left in the leaves.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e6“These lamellar structures remain even when no or only traces of pigment are left in the leaves”
Claim · model-written summary
In untreated control leaves the pigment content remained constant during similar illumination.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e4“In untreated control leaves the pigment content remained constant during similar illumination”
Claim · model-written summary
In untreated control leaves the vesicles of the prolamellar bodies were rearranged into strands dispersed through the stroma.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e7“the structural changes in the plastids consisted of a rearrangement of the vesicles from the prolamellar bodies into strands dispersed through the stroma; lamellae and grana formation occurred later”
Claim · model-written summary
Lamellae and grana formation occurred later in untreated control leaves.
Verbatim
e0“Etiolated bean leaves supplied delta-amino-levulinic acid in the dark synthesize large amounts of protochlorophyllide”
e7“the structural changes in the plastids consisted of a rearrangement of the vesicles from the prolamellar bodies into strands dispersed through the stroma; lamellae and grana formation occurred later”
The same questions in other papers
light · physiology: pigments · Phaseolus vulgaris (common bean)Positive and negative results
3 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- positive
- positive
10 papers more in this group
See all 14 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.