Abstract
The effect of abscisic acid (ABA) on the cold hardiness of cell suspension was investigated. Cell suspension cultures of winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss treated with 7.5 x 10(-5) molar ABA for 4 days at 20 degrees C could tolerate -30 degrees C, whereas the control cultures tolerated only -7 to -8 degrees C. The optimum concentration for increasing the cold hardiness of the cultures was 7.5 x 10(-5) molar. The degree of cold hardiness and the rate of hardening obtained by ABA treatment was significantly higher than that induced by low temperature alone. Of ten species tested, ABA was only effective on those cultures which were capable of cold hardening upon exposure to low temperatures. The results suggest that ABA bypasses the cold requirement for hardening and also suggests that ABA triggers the genetic system(s) responsible for inducing the hardening process.
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Claims 9
Claim · model-written summary
ABA treated winter wheat cultures tolerated -30 degrees C compared with -7 to -8 degrees C in controls.
- Taxon
- winter wheat
Triticum aestivume0 - Material
- Norstare0
- Treatment
- 7.5 x 10(-5) molar ABA for 4 days at 20 degrees Ce0
- Outcome
- toleratee0
- Direction
- could toleratee0
- Value
- -30 degrees Ce0
- Qualifier
- -7 to -8 degrees Ce0
- Comparator
- control culturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss treated with 7.5 x 10(-5) molar ABA for 4 days at 20 degrees C could tolerate -30 degrees C, whereas the control cultures tolerated only -7 to -8 degrees C”
Claim · model-written summary
ABA treated winter rye cultures tolerated -30 degrees C compared with -7 to -8 degrees C in controls.
- Taxon
- winter rye
Secale cerealee0 - Material
- Cougare0
- Treatment
- 7.5 x 10(-5) molar ABA for 4 days at 20 degrees Ce0
- Outcome
- toleratee0
- Direction
- could toleratee0
- Value
- -30 degrees Ce0
- Comparator
- control culturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss treated with 7.5 x 10(-5) molar ABA for 4 days at 20 degrees C could tolerate -30 degrees C, whereas the control cultures tolerated only -7 to -8 degrees C”
Claim · model-written summary
ABA treated bromegrass cultures tolerated -30 degrees C compared with -7 to -8 degrees C in controls.
Verbatim
e0“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss treated with 7.5 x 10(-5) molar ABA for 4 days at 20 degrees C could tolerate -30 degrees C, whereas the control cultures tolerated only -7 to -8 degrees C”
Claim · model-written summary
The optimum ABA concentration for increasing cultured-cell cold hardiness was 7.5 x 10(-5) molar.
- Taxon
- winter wheatTriticum aestivume1
- Outcome
- cold hardinesse0
- Direction
- increasinge0
- Value
- 7.5 x 10(-5) molare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum concentration for increasing the cold hardiness of the cultures was 7.5 x 10(-5) molar”
e1“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss”
Claim · model-written summary
ABA induced significantly higher cold hardiness than low temperature alone.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- ABA treatmente0
- Outcome
- degree of cold hardinesse0
- Direction
- highere0
- Comparator
- low temperature alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The degree of cold hardiness and the rate of hardening obtained by ABA treatment was significantly higher than that induced by low temperature alone”
e1“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss”
Claim · model-written summary
ABA induced a significantly higher hardening rate than low temperature alone.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- ABA treatmente0
- Outcome
- rate of hardeninge0
- Direction
- highere0
- Comparator
- low temperature alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The degree of cold hardiness and the rate of hardening obtained by ABA treatment was significantly higher than that induced by low temperature alone”
e1“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss”
Claim · model-written summary
ABA was effective only in cultures capable of low-temperature cold hardening.
- Taxon
- winter wheatTriticum aestivume1
- Outcome
- ABA was only effective on those cultures which were capable of cold hardeninge0
- Value
- ten speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of ten species tested, ABA was only effective on those cultures which were capable of cold hardening upon exposure to low temperatures”
e1“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss”
Claim · model-written summary
The authors suggest ABA bypasses the cold requirement for hardening.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- ABAe0
- Outcome
- cold requirement for hardeninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA bypasses the cold requirement for hardening”
e1“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss”
Claim · model-written summary
The authors suggest ABA triggers genetic systems responsible for hardening.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- ABAe0
- Outcome
- hardening processe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA triggers the genetic system(s) responsible for inducing the hardening process”
e1“winter wheat (Triticum aestivum L. cv Norstar), winter rye (Secale cereale L. cv Cougar), and bromegrass Bromo inermis Leyss”
The same questions in other papers
(+)-abscisic acid · tolerance: abiotic · Triticum aestivum (wheat)Results differ
10 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 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.