Abstract
Salinity stress is a threat to yield in many crops, including soybean (Glycine max L.). In this study, three soybean cultivars (JD19, LH3, and LD2) with different salt resistance were used to analyze salt tolerance mechanisms using physiology, transcriptomic, metabolomic, and bioinformatic methods. Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment. Comparative transcriptome analysis showed that compared with LD2, salt stress increased the expression of antioxidant metabolism, stress response metabolism, glycine, serine and threonine metabolism, auxin response protein, transcription, and translation-related genes in JD19 and LH3. The comparison of metabolite profiles indicated that amino acid metabolism and the TCA cycle were important metabolic pathways of soybean in response to salt stress. In the further validation analysis of the above two pathways, it was found that compared with LD2, JD19, and LH3 had higher nitrogen absorption and assimilation rate, more amino acid accumulation, and faster TCA cycle activity under salt stress, which helped them better adapt to salt stress. Taken together, this study provides valuable information for better understanding the molecular mechanism underlying salt tolerance of soybean and also proposes new ideas and methods for cultivating stress-tolerant soybean.
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Claims 10
Claim · model-written summary
Salt-tolerant JD19 and LH3 had less root growth inhibition than LD2 under 100 mM NaCl.
- Taxon
- soybean
Glycine maxt0 - Material
- JD19 and LH3e0
- Treatment
- 100 mM NaCl treatmente0
- Outcome
- root growth inhibitione0
- Direction
- lesse0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
Salt-tolerant JD19 and LH3 had higher antioxidant enzyme activities than LD2 under 100 mM NaCl.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19 and LH3e0
- Treatment
- 100 mM NaCl treatmente0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- highere0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
Salt-tolerant JD19 and LH3 had lower ROS accumulation than LD2 under 100 mM NaCl.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19 and LH3e0
- Treatment
- 100 mM NaCl treatmente0
- Outcome
- ROS accumulatione0
- Direction
- lowere0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
Salt-tolerant JD19 and LH3 had lower Na+ contents than LD2 under 100 mM NaCl.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19 and LH3e0
- Treatment
- 100 mM NaCl treatmente0
- Outcome
- Na+e0
- Direction
- lowere0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
Salt-tolerant JD19 and LH3 had lower Cl- contents than LD2 under 100 mM NaCl.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19 and LH3e0
- Treatment
- 100 mM NaCl treatmente0
- Outcome
- Cl- contentse0
- Direction
- lowere0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
Salt stress increased expression of the listed metabolism, stress response, auxin response, transcription and translation related genes in JD19 and LH3 compared with LD2.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19 and LH3e0
- Outcome
- expression of antioxidant metabolism, stress response metabolism, glycine, serine and threonine metabolism, auxin response protein, transcription, and translation-related genese0
- Direction
- increasede0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Comparative transcriptome analysis showed that compared with LD2, salt stress increased the expression of antioxidant metabolism, stress response metabolism, glycine, serine and threonine metabolism, auxin response protein, transcription, and translation-related genes in JD19 and LH3.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
Amino acid metabolism and the TCA cycle were identified as important soybean responses to salt stress.
- Taxon
- soybeanGlycine maxe0
- Treatment
- salt stresse0
- Outcome
- amino acid metabolism and the TCA cyclee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The comparison of metabolite profiles indicated that amino acid metabolism and the TCA cycle were important metabolic pathways of soybean in response to salt stress.”
Claim · model-written summary
JD19 and LH3 had higher nitrogen absorption and assimilation rate than LD2 under salt stress.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19, and LH3e0
- Treatment
- salt stresse0
- Outcome
- nitrogen absorption and assimilation ratee0
- Direction
- highere0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the further validation analysis of the above two pathways, it was found that compared with LD2, JD19, and LH3 had higher nitrogen absorption and assimilation rate, more amino acid accumulation, and faster TCA cycle activity under salt stress, which helped them better adapt to salt stress.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
JD19 and LH3 had more amino acid accumulation than LD2 under salt stress.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19, and LH3e0
- Treatment
- salt stresse0
- Outcome
- amino acid accumulatione0
- Direction
- moree0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the further validation analysis of the above two pathways, it was found that compared with LD2, JD19, and LH3 had higher nitrogen absorption and assimilation rate, more amino acid accumulation, and faster TCA cycle activity under salt stress, which helped them better adapt to salt stress.”
t0“soybean (Glycine max L.)”
Claim · model-written summary
JD19 and LH3 had faster TCA cycle activity than LD2 under salt stress.
- Taxon
- soybeanGlycine maxt0
- Material
- JD19, and LH3e0
- Treatment
- salt stresse0
- Outcome
- TCA cycle activitye0
- Direction
- fastere0
- Comparator
- LD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the further validation analysis of the above two pathways, it was found that compared with LD2, JD19, and LH3 had higher nitrogen absorption and assimilation rate, more amino acid accumulation, and faster TCA cycle activity under salt stress, which helped them better adapt to salt stress.”
t0“soybean (Glycine max L.)”
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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.