Abstract
Illumination of aetiolated maize at temperatures lower than 20 °C results in negligible accumulation of chlorophyll. Illumination of leaf tissue, previously incubated in 10 mol m−3 ALA in darkness, shows only a slight conversion of protochlorophyll(ide) to chlorophyll a and b at temperatures less than 20 °C. A refined procedure for measuring photosynthesis by photo-acoustic spectroscopy in leaves that differ in chlorophyll content is presented. Studies of photosynthesis in aetiolated seedlings illuminated at different temperatures by photo-acoustic spectroscopy suggests that impairment of the chlorophyll pathway is paralleled by an aberrant development of the thylakoid membrane.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
Illumination below 20 °C produced negligible chlorophyll accumulation in etiolated maize.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Illumination of aetiolated maize at temperatures lower than 20 °C results in negligible accumulation of chlorophyll”
Claim · model-written summary
Leaf tissue preincubated with ALA in darkness converted protochlorophyll(ide) to chlorophyll a and b only slightly below 20 °C.
- Treatment
- 10 mol m−3 ALA in darknesse0
- Outcome
- conversion of protochlorophyll(ide) to chlorophyll a and be0
- Direction
- slighte0
- Qualifier
- temperatures less than 20 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Illumination of leaf tissue, previously incubated in 10 mol m−3 ALA in darkness, shows only a slight conversion of protochlorophyll(ide) to chlorophyll a and b at temperatures less than 20 °C”
t0“Maize (Zea maysL.)”
Claim · model-written summary
Impaired chlorophyll synthesis was paralleled by aberrant thylakoid membrane development in seedlings illuminated at different temperatures.
- Organ / stage
- thylakoid membranee0
- Outcome
- aberrant development of the thylakoid membranee0
- Qualifier
- impairment of the chlorophyll pathwaye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“impairment of the chlorophyll pathway is paralleled by an aberrant development of the thylakoid membrane”
t0“Maize (Zea maysL.)”
The same questions in other papers
5-aminolevulinic acid · physiology: pigments · Zea mays (maize)Results differ
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
light · physiology: pigments · Zea mays (maize)Positive and negative results
8 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
17 papers more in this group
See all 21 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.