Abstract
The production of potato (Solanum tuberosum L.) faces a severe challenge due to the salinization of arable land worldwide. The cultivation of salt-tolerant potatoes is of great significance to ensure food security. In this study, two cultivars of ‘Longshu 5’ and ‘Qingshu 9’ were compared for physiological responses to salt stress, and then the salt tolerance of the two cultivars were assessed via principal component analysis. Furthermore, the Na+, K+, and Ca2+ flux of the cultivars under salt stress was recorded. Finally, the expression levels of ion transport-related genes and transcription factors in salt-tolerant cultivars were explored under NaCl stress. The results showed that the seven physiological indicators of salt tolerance were differed between the cultivars. Interestingly, soluble protein and sugar were early responsive to salt stress than proline in the salt-tolerance cultivar. Peroxidase and superoxide dismutase activity were significantly different in ‘Longshu 5’ under NaCl stress and without being significantly different in ‘Qingshu9’. In addition, the salt tolerance of ‘Longshu 5’ was more tolerant than ‘Qingshu 9’ based on principal component evaluation. Meanwhile, the strong efflux of Na+, the stability of K+, and the high absorption of Ca2+ in ‘Longshu 5’ indicated salt adaption mechanisms in the salt-tolerant potato. In addition, we found that ion transport-related genes and transcription factors, such as StSOS1, StNHX4, StAKT1, StNAC24, and StCYP707A, played a role in the salt tolerance of ‘Longshu 5’. In conclusion, the salt-tolerant potato can regulate physiological substances to adapt to salt stress, and ion transport related genes and transcription factors play a role in improving salt tolerance.
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Claims 9
Claim · model-written summary
The seven physiological indicators of salt tolerance differed between the two potato cultivars.
- Taxon
- potato
Solanum tuberosume0 - Material
- cultivarse2
- Outcome
- seven physiological indicators of salt tolerancee2
- Direction
- differede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e2“the seven physiological indicators of salt tolerance were differed between the cultivars”
Claim · model-written summary
Soluble protein and sugar responded early to salt stress, earlier than proline, in the salt-tolerant cultivar.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- soluble protein and sugare3
- Qualifier
- early responsive to salt stresse3
- Comparator
- prolinee3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e3“soluble protein and sugar were early responsive to salt stress than proline in the salt-tolerance cultivar”
Claim · model-written summary
Peroxidase and superoxide dismutase activity differed significantly in Longshu 5 under NaCl stress.
- Taxon
- potatoSolanum tuberosume0
- Material
- Longshu 5e4
- Treatment
- NaCl stresse4
- Outcome
- Peroxidase and superoxide dismutase activitye4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e4“Peroxidase and superoxide dismutase activity were significantly different in ‘Longshu 5’ under NaCl stress”
Claim · model-written summary
Peroxidase and superoxide dismutase activity did not differ significantly in Qingshu 9 under NaCl stress.
- Taxon
- potatoSolanum tuberosume0
- Material
- Qingshu9e5
- Treatment
- NaCl stresse4
- Outcome
- Peroxidase and superoxide dismutase activitye4
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e4“Peroxidase and superoxide dismutase activity were significantly different in ‘Longshu 5’ under NaCl stress”
e5“without being significantly different in ‘Qingshu9’”
Claim · model-written summary
Longshu 5 was more salt tolerant than Qingshu 9 based on principal component evaluation.
- Taxon
- potatoSolanum tuberosume0
- Material
- Longshu 5e6
- Outcome
- salt tolerancee6
- Direction
- more tolerante6
- Comparator
- Qingshu 9e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e6“the salt tolerance of ‘Longshu 5’ was more tolerant than ‘Qingshu 9’ based on principal component evaluation”
Claim · model-written summary
Longshu 5 showed a strong efflux of Na+ under salt stress.
- Taxon
- potatoSolanum tuberosume0
- Material
- Longshu 5e7
- Outcome
- efflux of Na+e7
- Qualifier
- stronge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e7“the strong efflux of Na+, the stability of K+, and the high absorption of Ca2+ in ‘Longshu 5’ indicated salt adaption mechanisms in the salt-tolerant potato”
Claim · model-written summary
Longshu 5 showed stable K+ under salt stress.
- Taxon
- potatoSolanum tuberosume0
- Material
- Longshu 5e7
- Outcome
- stability of K+e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e7“the strong efflux of Na+, the stability of K+, and the high absorption of Ca2+ in ‘Longshu 5’ indicated salt adaption mechanisms in the salt-tolerant potato”
Claim · model-written summary
Longshu 5 showed high absorption of Ca2+ under salt stress.
- Taxon
- potatoSolanum tuberosume0
- Material
- Longshu 5e7
- Outcome
- absorption of Ca2+e7
- Qualifier
- highe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e7“the strong efflux of Na+, the stability of K+, and the high absorption of Ca2+ in ‘Longshu 5’ indicated salt adaption mechanisms in the salt-tolerant potato”
Claim · model-written summary
Ion transport-related genes and transcription factors StSOS1, StNHX4, StAKT1, StNAC24 and StCYP707A played a role in the salt tolerance of Longshu 5.
- Taxon
- potatoSolanum tuberosume0
- Material
- Longshu 5e7
- Gene
- StSOS1, StNHX4, StAKT1, StNAC24, and StCYP707Ae7
- Outcome
- salt tolerancee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of potato (Solanum tuberosum L.) faces a severe challenge”
e7“ion transport-related genes and transcription factors, such as StSOS1, StNHX4, StAKT1, StNAC24, and StCYP707A, played a role in the salt tolerance of ‘Longshu 5’”
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