Abstract
Abstract Ten‐day‐old seedlings of rice (Oryza sativa L., varieties c.v. (Nona bokra, Basmati, IR28, and IR29) grown on MS medium were used in this study. Total protein extract from roots of control and 2% salt‐treated plants were analyzed by two dimensional electrophoresis. Following eight hours of salt stress including terminal three hours of in vivo labeling, two new proteins of molecular weights corresponding to 27 and 25.5 kD were detected. These proteins were not detectable with silver staining after one day of stress but became evident after two days of salt treatment and gradually increased up to four days. During recovery after two days of treatment, their levels decreased gradually and were present even after two days of recovery, though, in decreased amounts. No such protein was induced in plants stressed with copper (Cu), cadmium (Cd), heat, ABA, or PEG treatments. Quantitative changes in the amount of other proteins were also observed. This indicates that the rice plant may adjust to the changes in its ionic environment by altering its macromolecular composition of root tissue.
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Claims 10
Claim · model-written summary
Two new rice root proteins of 27 and 25.5 kD were detected after eight hours of salt stress.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- rootse1
- Treatment
- 2% salt‐treatede1
- Outcome
- two new proteinse0
- Value
- 27 and 25.5 kDe0
- Comparator
- controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following eight hours of salt stress including terminal three hours of in vivo labeling, two new proteins of molecular weights corresponding to 27 and 25.5 kD were detected.”
t0“rice”
e1“roots of control and 2% salt‐treated plants”
Claim · model-written summary
The new root proteins were not detectable after one day of stress but appeared after two days.
- Taxon
- riceOryza sativat0
- Outcome
- proteinse0
- Qualifier
- after two days of salt treatmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These proteins were not detectable with silver staining after one day of stress but became evident after two days of salt treatment”
t0“rice”
Claim · model-written summary
The new rice root proteins increased through four days of salt treatment.
- Taxon
- riceOryza sativat0
- Outcome
- proteinse1
- Direction
- increasede0
- Qualifier
- up to four dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“became evident after two days of salt treatment and gradually increased up to four days”
e1“These proteins were not detectable with silver staining after one day of stress”
t0“rice”
Claim · model-written summary
During recovery, the rice root proteins decreased but persisted after two days.
- Taxon
- riceOryza sativat0
- Outcome
- levelse0
- Direction
- decreasede0
- Qualifier
- after two days of recoverye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During recovery after two days of treatment, their levels decreased gradually and were present even after two days of recovery, though, in decreased amounts.”
t0“rice”
Claim · model-written summary
Copper stress did not induce the new rice root proteins.
- Taxon
- riceOryza sativat0
- Treatment
- copper (Cu)e0
- Outcome
- proteine0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No such protein was induced in plants stressed with copper (Cu), cadmium (Cd), heat, ABA, or PEG treatments.”
t0“rice”
Claim · model-written summary
Cadmium stress did not induce the new rice root proteins.
- Taxon
- riceOryza sativat0
- Treatment
- cadmium (Cd)e0
- Outcome
- proteine0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No such protein was induced in plants stressed with copper (Cu), cadmium (Cd), heat, ABA, or PEG treatments.”
t0“rice”
Claim · model-written summary
Heat stress did not induce the new rice root proteins.
- Taxon
- riceOryza sativat0
- Treatment
- heate0
- Outcome
- proteine0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No such protein was induced in plants stressed with copper (Cu), cadmium (Cd), heat, ABA, or PEG treatments.”
t0“rice”
Claim · model-written summary
ABA treatment did not induce the new rice root proteins.
- Taxon
- riceOryza sativat0
- Treatment
- ABAe0
- Outcome
- proteine0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No such protein was induced in plants stressed with copper (Cu), cadmium (Cd), heat, ABA, or PEG treatments.”
t0“rice”
Claim · model-written summary
PEG treatment did not induce the new rice root proteins.
- Taxon
- riceOryza sativat0
- Treatment
- PEGe0
- Outcome
- proteine0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No such protein was induced in plants stressed with copper (Cu), cadmium (Cd), heat, ABA, or PEG treatments.”
t0“rice”
Claim · model-written summary
Amounts of other rice root proteins changed quantitatively.
- Taxon
- riceOryza sativat0
- Outcome
- amount of other proteinse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quantitative changes in the amount of other proteins were also observed.”
t0“rice”
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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.