Abstract
Salt stress is one of the main abiotic factors affecting castor yield. Wild castor resources can provide important insights for cultivated castor breeding. However, little is known about how wild castor responds or adapts to salt stress. To understand the physiological mechanisms for salt tolerance in castor, the morphological and physiological responses of two varieties, wild and cultivated castor, with contrasted salt tolerance were characterized under salt stress. Seedlings were exposed to 0, 50, and 100 mM NaCl. The results showed that salt application significantly inhibited the increase in chlorophyll content and relative water content of cultivated castor. The degree of electrolyte leakage of wild castor under salt stress was significantly less than that of cultivated castor. In addition, the WT showed a lower content of reactive oxygen species (ROS) under the salt stress compared to CT. The activities of antioxidant enzymes like SOD, APX, GR, and MDHAR in the leaves of WT showed higher accumulation compared to those of CT under salt stress. The ratio of ASA/DHA and GSH/GSSG in leaves of WT showed a distinct increase compared to CT. In summary, our results revealed the salt stress resistance characteristics of wild castor. Wild castor also has the potential to be used as parental material in a breeding program. These results will be valuable for salt resistance breeding of cultivated castor.
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Claims 11
Claim · model-written summary
Salt significantly inhibited chlorophyll-content increase in cultivated castor.
- Taxon
- cultivated castor
Ricinus communise0 - Material
- cultivated castore0
- Treatment
- salt applicatione0
- Outcome
- chlorophyll contente0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt application significantly inhibited the increase in chlorophyll content and relative water content of cultivated castor”
Claim · model-written summary
Salt significantly inhibited relative-water-content increase in cultivated castor.
- Taxon
- cultivated castorRicinus communise0
- Material
- cultivated castore0
- Treatment
- salt applicatione0
- Outcome
- relative water contente0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt application significantly inhibited the increase in chlorophyll content and relative water content of cultivated castor”
Claim · model-written summary
Wild castor showed significantly less electrolyte leakage under salt stress than cultivated castor.
Verbatim
e0“The degree of electrolyte leakage of wild castor under salt stress was significantly less than that of cultivated castor”
Claim · model-written summary
Wild type castor had lower reactive oxygen species content under salt stress than cultivated type.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Treatment
- salt stresse0
- Outcome
- content of reactive oxygen species (ROS)e0
- Direction
- lowere0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the WT showed a lower content of reactive oxygen species (ROS) under the salt stress compared to CT”
t0“Castor”
Claim · model-written summary
Wild type leaves had higher SOD activity under salt stress than cultivated type leaves.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Organ / stage
- leavese0
- Treatment
- salt stresse0
- Gene
- SODe0
- Outcome
- activities of antioxidant enzymese0
- Direction
- highere0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of antioxidant enzymes like SOD, APX, GR, and MDHAR in the leaves of WT showed higher accumulation compared to those of CT under salt stress”
t0“Castor”
Claim · model-written summary
Wild type leaves had higher APX activity under salt stress than cultivated type leaves.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Organ / stage
- leavese0
- Treatment
- salt stresse0
- Gene
- APXe0
- Outcome
- activities of antioxidant enzymese0
- Direction
- highere0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of antioxidant enzymes like SOD, APX, GR, and MDHAR in the leaves of WT showed higher accumulation compared to those of CT under salt stress”
t0“Castor”
Claim · model-written summary
Wild type leaves had higher GR activity under salt stress than cultivated type leaves.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Organ / stage
- leavese0
- Treatment
- salt stresse0
- Gene
- GRe0
- Outcome
- activities of antioxidant enzymese0
- Direction
- highere0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of antioxidant enzymes like SOD, APX, GR, and MDHAR in the leaves of WT showed higher accumulation compared to those of CT under salt stress”
t0“Castor”
Claim · model-written summary
Wild type leaves had higher MDHAR activity under salt stress than cultivated type leaves.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Organ / stage
- leavese0
- Treatment
- salt stresse0
- Gene
- MDHARe0
- Outcome
- activities of antioxidant enzymese0
- Direction
- highere0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of antioxidant enzymes like SOD, APX, GR, and MDHAR in the leaves of WT showed higher accumulation compared to those of CT under salt stress”
t0“Castor”
Claim · model-written summary
Wild type leaves showed increased ASA/DHA ratio relative to cultivated type.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Organ / stage
- leavese0
- Outcome
- ratio of ASA/DHAe0
- Direction
- increasee0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratio of ASA/DHA and GSH/GSSG in leaves of WT showed a distinct increase compared to CT”
t0“Castor”
Claim · model-written summary
Wild type leaves showed increased GSH/GSSG ratio relative to cultivated type.
- Taxon
- castorRicinus communist0
- Material
- WTe0
- Organ / stage
- leavese0
- Outcome
- GSH/GSSGe0
- Direction
- increasee0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratio of ASA/DHA and GSH/GSSG in leaves of WT showed a distinct increase compared to CT”
t0“Castor”
Claim · model-written summary
Wild castor was proposed as parental material for salt-resistance breeding.
Verbatim
e0“Wild castor also has the potential to be used as parental material in a breeding program”
The same questions in other papers
salinity · physiology: water · Ricinus communis (castor bean)Results agree
1 paper in the same direction as this paper
- negative
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.