Abstract
Rice seedlings germinated in the dark in O2-deficient and normal air environments manifest dimorphism and are designated here as d− and d+ plants. Both d− and d+ seedlings lack chlorophyll but the d− plants are stark-white whereas the d+ plants are yellow or yellow-green in appearance. Rice seedlings germinated in the light under O2 deficiency also lack chlorophyll and manifest the same developmental characteristics as the d− dark-germinated seedlings. Thus, in an O2-deficient environment, light-germinated rice seedlings behave as though they were germinated in the dark under O2 deficiency. Exposure of the dark-germinated d− and d+ seedlings and the light-germinated d− seedlings to normal air in the light brings about chlorophyll formation and normal morphogenetic development in all three types of germinating seedlings. Thus O2 exerts a critical influence on the response of germinating rice seedlings to light energy with respect to their normal morphogenetic development.
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Claims 6
Claim · model-written summary
Dark-germinated rice seedlings differed morphologically between oxygen-deficient and normal air environments.
- Taxon
- Rice seedlings
Oryza sativae0 - Outcome
- dimorphisme0
- Setting
- O2-deficient and normal air environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice seedlings germinated in the dark in O2-deficient and normal air environments manifest dimorphism and are designated here as d− and d+ plants”
Claim · model-written summary
Both dark-germinated seedling types lacked chlorophyll.
- Taxon
- Rice SeedlingsOryza sativat0
- Organ / stage
- seedlingse0
- Outcome
- lack chlorophylle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both d− and d+ seedlings lack chlorophyll”
t0“Rice Seedlings”
Claim · model-written summary
Oxygen-deficient dark-germinated seedlings were stark white, whereas normal-air dark-germinated seedlings were yellow or yellow-green.
- Taxon
- Rice SeedlingsOryza sativat0
- Outcome
- stark-white whereas the d+ plants are yellow or yellow-green in appearancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the d− plants are stark-white whereas the d+ plants are yellow or yellow-green in appearance”
t0“Rice Seedlings”
Claim · model-written summary
Rice seedlings germinated in light under oxygen deficiency lacked chlorophyll.
- Taxon
- Rice seedlingsOryza sativae0
- Outcome
- lack chlorophylle0
- Setting
- O2 deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice seedlings germinated in the light under O2 deficiency also lack chlorophyll”
Claim · model-written summary
Rice seedlings germinated in light under oxygen deficiency showed the same developmental characteristics as dark-germinated oxygen-deficient seedlings.
- Taxon
- Rice seedlingsOryza sativae0
- Outcome
- same developmental characteristicse0
- Setting
- O2 deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice seedlings germinated in the light under O2 deficiency also lack chlorophyll and manifest the same developmental characteristics as the d− dark-germinated seedlings”
Claim · model-written summary
Exposure to normal air in light produced chlorophyll formation and normal morphogenetic development in all three rice seedling types.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- normal air in the lighte0
- Outcome
- chlorophyll formation and normal morphogenetic developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure of the dark-germinated d− and d+ seedlings and the light-germinated d− seedlings to normal air in the light brings about chlorophyll formation and normal morphogenetic development in all three types of germinating seedlings”
t0“Rice Seedlings”
The same questions in other papers
light · physiology: pigments · Oryza sativa (rice)Positive and negative results
4 papers in the same direction as this paper · 11 in the opposite direction
- no effect
- negative
- negative
12 papers more in this group
See all 16 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.