Abstract
Abstract Background IBAK, as a plant growth regulator, has broad application prospects in improving crop resistance to abiotic stress. Results In this study, the regulation mechanism of IBAK on rice was revealed by physiology and transcriptomics by spraying 80 mg·L −1 IBAK solution on rice leaves at the early jointing stage under salt stress. The results showed that spraying IBAK solution on leaves under salt stress could significantly increase K + content, decrease Na + content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves. Using IBAK under salt stress increased the expression of plant hormone signal transduction pathway-related genes LOC4332548 and LOC4330957, which may help rice to more effectively sense and respond to plant hormone signals and enhance resistance to salt stress. In addition, the photosynthesis pathway-related genes LOC4339270, LOC4327150, and LOC4346326 were upregulated after using IBAK under salt stress, and the upregulation of these genes may be beneficial to improve the efficiency of photosynthesis and increase the photosynthetic capacity of rice. Regarding starch and sucrose metabolism pathway, spraying IBAK on leaves could promote the expression of sucrose synthesis-related gene LOC4347800 and increase the expression of starch synthesis-related genes LOC4330709 and LOC4343010 under salt stress. Finally, IBAK spraying resulted in the upregulation of multiple 50 S and 30 S ribosomal protein genes in the ribosome pathway, which may increase protein synthesis, help maintain cell function, and promote rice growth and development. Conclusion The results of this study revealed the mechanism of IBAK mediating resistance to salt stress in rice.
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Claims 10
Claim · model-written summary
IBAK spraying increased K content in salt-stressed rice leaves.
- Taxon
- rice
Oryza sativae0 - Treatment
- spraying IBAK solution on leaves under salt stresse0
- Outcome
- K + contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK solution on leaves under salt stress could significantly increase K + content, decrease Na + content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves”
Claim · model-written summary
IBAK spraying decreased Na content in salt-stressed rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- spraying IBAK solution on leaves under salt stresse0
- Outcome
- Na + contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK solution on leaves under salt stress could significantly increase K + content, decrease Na + content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves”
Claim · model-written summary
IBAK spraying increased net photosynthetic rate in salt-stressed rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- spraying IBAK solution on leaves under salt stresse0
- Outcome
- net photosynthetic rate (Pn)e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK solution on leaves under salt stress could significantly increase K + content, decrease Na + content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves”
Claim · model-written summary
IBAK spraying increased catalase activity in salt-stressed rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- spraying IBAK solution on leaves under salt stresse0
- Gene
- catalase (CAT)e0
- Outcome
- activity of catalase (CAT)e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK solution on leaves under salt stress could significantly increase K + content, decrease Na + content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves”
Claim · model-written summary
IBAK spraying increased glutathione and soluble protein content in salt-stressed rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- spraying IBAK solution on leaves under salt stresse0
- Outcome
- contents of glutathione (GSH) and soluble proteine0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK solution on leaves under salt stress could significantly increase K + content, decrease Na + content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves”
Claim · model-written summary
IBAK increased expression of LOC4332548 and LOC4330957 under salt stress.
- Taxon
- riceOryza sativae1
- Treatment
- Using IBAK under salt stresse0
- Gene
- LOC4332548 and LOC4330957e0
- Outcome
- expression of plant hormone signal transduction pathway-related genese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using IBAK under salt stress increased the expression of plant hormone signal transduction pathway-related genes LOC4332548 and LOC4330957”
e1“soluble protein in rice leaves”
Claim · model-written summary
IBAK upregulated photosynthesis pathway genes LOC4339270, LOC4327150 and LOC4346326 under salt stress.
- Taxon
- riceOryza sativae1
- Treatment
- using IBAK under salt stresse0
- Gene
- LOC4339270, LOC4327150, and LOC4346326e0
- Outcome
- photosynthesis pathway-related genes LOC4339270, LOC4327150, and LOC4346326e0
- Direction
- upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis pathway-related genes LOC4339270, LOC4327150, and LOC4346326 were upregulated after using IBAK under salt stress”
e1“soluble protein in rice leaves”
Claim · model-written summary
IBAK promoted expression of sucrose synthesis gene LOC4347800 under salt stress.
- Taxon
- riceOryza sativae1
- Treatment
- spraying IBAK on leavese0
- Gene
- LOC4347800e0
- Outcome
- expression of sucrose synthesis-related genee0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK on leaves could promote the expression of sucrose synthesis-related gene LOC4347800 and increase the expression of starch synthesis-related genes LOC4330709 and LOC4343010 under salt stress”
e1“soluble protein in rice leaves”
Claim · model-written summary
IBAK increased expression of starch synthesis genes LOC4330709 and LOC4343010 under salt stress.
- Taxon
- riceOryza sativae1
- Treatment
- spraying IBAK on leavese0
- Gene
- LOC4330709 and LOC4343010e0
- Outcome
- expression of starch synthesis-related genese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying IBAK on leaves could promote the expression of sucrose synthesis-related gene LOC4347800 and increase the expression of starch synthesis-related genes LOC4330709 and LOC4343010 under salt stress”
e1“soluble protein in rice leaves”
Claim · model-written summary
IBAK upregulated multiple 50 S and 30 S ribosomal protein genes.
- Taxon
- riceOryza sativae1
- Treatment
- IBAK sprayinge0
- Outcome
- multiple 50 S and 30 S ribosomal protein genese0
- Direction
- upregulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IBAK spraying resulted in the upregulation of multiple 50 S and 30 S ribosomal protein genes in the ribosome pathway”
e1“soluble protein in rice leaves”
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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.