Abstract
Potassium (K+) deficiency is a key factor limiting maize growth and yield. Auxin plays an important role in maize adaptation to K+ deficiency, but its physiological and molecular mechanisms are largely unclear. In this study, the exogenous application of 0.01 μmol·L–1 α-Naphthalene acetic acid (NAA) could effectively alleviate the growth inhibition of maize roots caused by K+ deficiency, especially in the low-K-sensitive maize inbred line D937. The transcriptome results showed that 3924 and 5458 genes were differentially expressed by exogenous NAA in D937 (sensitive to K+ deficiency) and 90-21-3 (tolerant to K+ deficiency) under K+ deficiency, respectively. The exogenous application of NAA to D937 results in maintenance of the indole acetic acid (IAA) levels by inducing an upregulation in the expression of YUCCA-encoding genes and decreases abscisic acid (ABA) content by inducing the differential expression of genes encoding NCED (downregulated), ABA2 (downregulated), and PP2C (upregulated), thereby reducing growth damage caused by K+ deficiency. In 90-21-3, exogenous NAA can decrease ABA content and increase IAA/ABA by inducing the differential expression of CYP707- and ABF-related genes, inhibiting the excess accumulation of reactive oxygen species by inducing the differential expression of genes encoding antioxidant enzymes, and maintain cellular K+ homeostasis by regulating the expression of genes encoding K+ channels and transporters, thus enhancing plant tolerance to K+ deficiency. This study lays the foundation for understanding the molecular mechanisms underlying maize adaptation to K+ deficiency.
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Claims 14
Claim · model-written summary
Exogenous NAA at 0.01 μmol·L–1 alleviated the growth inhibition of maize roots caused by K deficiency, especially in the sensitive inbred D937.
- Material
- D937e1
- Organ / stage
- rootse1
- Treatment
- exogenous application of 0.01 μmol·L–1 α-Naphthalene acetic acid (NAA)e1
- Outcome
- growth inhibition of maize rootse1
- Direction
- alleviatee1
- Qualifier
- low-K-sensitivee1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e1“the exogenous application of 0.01 μmol·L–1 α-Naphthalene acetic acid (NAA) could effectively alleviate the growth inhibition of maize roots caused by K+ deficiency, especially in the low-K-sensitive maize inbred line D937”
Claim · model-written summary
In the sensitive inbred D937, exogenous NAA changed the expression of 3924 genes under K deficiency.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e2“The transcriptome results showed that 3924 and 5458 genes were differentially expressed by exogenous NAA in D937 (sensitive to K+ deficiency) and 90-21-3 (tolerant to K+ deficiency) under K+ deficiency”
Claim · model-written summary
In the tolerant inbred 90-21-3, exogenous NAA changed the expression of 5458 genes under K deficiency.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e2“The transcriptome results showed that 3924 and 5458 genes were differentially expressed by exogenous NAA in D937 (sensitive to K+ deficiency) and 90-21-3 (tolerant to K+ deficiency) under K+ deficiency”
Claim · model-written summary
Exogenous NAA in D937 maintains indole acetic acid (IAA) levels by upregulating YUCCA-encoding genes.
- Material
- D937e3
- Treatment
- exogenous application of NAAe3
- Gene
- YUCCA-encoding genese3
- Outcome
- maintenance of the indole acetic acid (IAA) levelse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e3“The exogenous application of NAA to D937 results in maintenance of the indole acetic acid (IAA) levels by inducing an upregulation in the expression of YUCCA-encoding genes and decreases abscisic acid (ABA) content by inducing the differential expression of genes encoding NCED (downregulated), ABA2 (downregulated), and PP2C (upregulated), thereby reducing growth damage caused by K+ deficiency”
Claim · model-written summary
Exogenous NAA in D937 decreases abscisic acid (ABA) content under K deficiency.
- Material
- D937e3
- Treatment
- exogenous application of NAAe3
- Outcome
- abscisic acid (ABA) contente3
- Direction
- decreasese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e3“The exogenous application of NAA to D937 results in maintenance of the indole acetic acid (IAA) levels by inducing an upregulation in the expression of YUCCA-encoding genes and decreases abscisic acid (ABA) content by inducing the differential expression of genes encoding NCED (downregulated), ABA2 (downregulated), and PP2C (upregulated), thereby reducing growth damage caused by K+ deficiency”
Claim · model-written summary
Exogenous NAA in D937 downregulates NCED expression under K deficiency.
- Material
- D937e3
- Treatment
- exogenous application of NAAe3
- Gene
- NCEDe3
- Outcome
- differential expressione3
- Direction
- downregulatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e3“The exogenous application of NAA to D937 results in maintenance of the indole acetic acid (IAA) levels by inducing an upregulation in the expression of YUCCA-encoding genes and decreases abscisic acid (ABA) content by inducing the differential expression of genes encoding NCED (downregulated), ABA2 (downregulated), and PP2C (upregulated), thereby reducing growth damage caused by K+ deficiency”
Claim · model-written summary
Exogenous NAA in D937 downregulates ABA2 expression under K deficiency.
- Material
- D937e3
- Treatment
- exogenous application of NAAe3
- Gene
- ABA2e3
- Outcome
- differential expressione3
- Direction
- downregulatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e3“The exogenous application of NAA to D937 results in maintenance of the indole acetic acid (IAA) levels by inducing an upregulation in the expression of YUCCA-encoding genes and decreases abscisic acid (ABA) content by inducing the differential expression of genes encoding NCED (downregulated), ABA2 (downregulated), and PP2C (upregulated), thereby reducing growth damage caused by K+ deficiency”
Claim · model-written summary
Exogenous NAA in D937 upregulates PP2C expression under K deficiency.
- Material
- D937e3
- Treatment
- exogenous application of NAAe3
- Gene
- PP2Ce3
- Outcome
- differential expressione3
- Direction
- upregulatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e3“The exogenous application of NAA to D937 results in maintenance of the indole acetic acid (IAA) levels by inducing an upregulation in the expression of YUCCA-encoding genes and decreases abscisic acid (ABA) content by inducing the differential expression of genes encoding NCED (downregulated), ABA2 (downregulated), and PP2C (upregulated), thereby reducing growth damage caused by K+ deficiency”
Claim · model-written summary
In 90-21-3, exogenous NAA decreases ABA content under K deficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e4“In 90-21-3, exogenous NAA can decrease ABA content and increase IAA/ABA by inducing the differential expression of CYP707- and ABF-related genes, inhibiting the excess accumulation of reactive oxygen species by inducing the differential expression of genes encoding antioxidant enzymes”
Claim · model-written summary
In 90-21-3, exogenous NAA increases the IAA/ABA ratio under K deficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e4“In 90-21-3, exogenous NAA can decrease ABA content and increase IAA/ABA by inducing the differential expression of CYP707- and ABF-related genes, inhibiting the excess accumulation of reactive oxygen species by inducing the differential expression of genes encoding antioxidant enzymes”
Claim · model-written summary
Differential expression of CYP707- and ABF-related genes is the mechanism by which NAA decreases ABA content in 90-21-3.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e4“In 90-21-3, exogenous NAA can decrease ABA content and increase IAA/ABA by inducing the differential expression of CYP707- and ABF-related genes, inhibiting the excess accumulation of reactive oxygen species by inducing the differential expression of genes encoding antioxidant enzymes”
Claim · model-written summary
Exogenous NAA inhibits the excess accumulation of reactive oxygen species in 90-21-3 through differential expression of antioxidant enzyme genes.
- Material
- 90-21-3e4
- Treatment
- exogenous NAAe4
- Gene
- antioxidant enzymese4
- Outcome
- excess accumulation of reactive oxygen speciese4
- Direction
- inhibitinge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e4“In 90-21-3, exogenous NAA can decrease ABA content and increase IAA/ABA by inducing the differential expression of CYP707- and ABF-related genes, inhibiting the excess accumulation of reactive oxygen species by inducing the differential expression of genes encoding antioxidant enzymes”
Claim · model-written summary
NAA maintains cellular K+ homeostasis by regulating the expression of genes encoding K+ channels and transporters.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e5“and maintain cellular K+ homeostasis by regulating the expression of genes encoding K+ channels and transporters, thus enhancing plant tolerance to K+ deficiency”
Claim · model-written summary
Exogenous NAA enhances plant tolerance to K deficiency in 90-21-3.
- Material
- 90-21-3e4
- Treatment
- exogenous NAAe4
- Outcome
- plant tolerance to K+ deficiencye5
- Direction
- enhancinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The Potassium-Dependent Transcriptome Analysis of Maize Provides Novel Insights into the Rescue Role of Auxin in Responses to Potassium Deficiency”
e4“In 90-21-3, exogenous NAA can decrease ABA content and increase IAA/ABA by inducing the differential expression of CYP707- and ABF-related genes, inhibiting the excess accumulation of reactive oxygen species by inducing the differential expression of genes encoding antioxidant enzymes”
e5“and maintain cellular K+ homeostasis by regulating the expression of genes encoding K+ channels and transporters, thus enhancing plant tolerance to K+ deficiency”
The same questions in other papers
1-naphthaleneacetic acid · molecular: metabolites · Zea mays (maize)Positive and negative results
1 in the opposite direction
- negative
1-naphthaleneacetic acid · disease · Zea mays (maize)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.