Abstract
Optimizing the root architecture of crops is an effective strategy for improving crop yields. Soil compaction is a serious global problem that limits crop productivity by restricting root growth, but the underlying molecular mechanisms are largely unclear. Here, we show that ethylene stimulates rice (Oryza sativa) crown root development in response to soil compaction. First, we demonstrate that compacted soil promotes ethylene production and the accumulation of ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1) in rice roots, stimulating crown root primordia initiation and development, thereby increasing crown root number in lower stem nodes. Through transcriptome profiling and molecular analyses, we reveal that OsEIL1 directly activates the expression of WUSCHEL-RELATED HOMEOBOX 11 (OsWOX11), an activator of crown root emergence and growth, and that OsWOX11 mutations delay crown root development, thus impairing the plant's response to ethylene and soil compaction. Genetic analysis demonstrates that OsWOX11 functions downstream of OsEIL1. In summary, our results demonstrate that the OsEIL1-OsWOX11 module regulates ethylene action during crown root development in response to soil compaction, providing a strategy for the genetic modification of crop root architecture and grain agronomic traits.
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Claims 10
Claim · model-written summary
Ethylene stimulates rice crown root development in response to compaction.
- Taxon
- rice
Oryza sativae0 - Treatment
- soil compactione0
- Compound
- ethylenee0
- Outcome
- crown root developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethylene stimulates rice (Oryza sativa) crown root development in response to soil compaction”
Claim · model-written summary
Compacted soil promotes ethylene production in rice roots.
- Taxon
- riceOryza sativae0
- Organ / stage
- rice rootse0
- Treatment
- compacted soile0
- Outcome
- ethylene productione0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compacted soil promotes ethylene production and the accumulation of ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1) in rice roots”
Claim · model-written summary
Compacted soil promotes OsEIL1 accumulation in rice roots.
- Taxon
- riceOryza sativae0
- Treatment
- compacted soile0
- Gene
- ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1)e0
- Outcome
- accumulation of ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1)e0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compacted soil promotes ethylene production and the accumulation of ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1) in rice roots”
Claim · model-written summary
The compaction response stimulates crown root primordia initiation and development.
- Taxon
- riceOryza sativae1
- Gene
- OsEIL1e1
- Outcome
- crown root primordia initiation and developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stimulating crown root primordia initiation and development, thereby increasing crown root number in lower stem nodes”
e1“compacted soil promotes ethylene production and the accumulation of ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1) in rice roots”
Claim · model-written summary
The compaction response increases crown root number in lower stem nodes.
- Taxon
- riceOryza sativae1
- Organ / stage
- lower stem nodese0
- Gene
- OsEIL1e1
- Outcome
- crown root numbere0
- Direction
- increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stimulating crown root primordia initiation and development, thereby increasing crown root number in lower stem nodes”
e1“compacted soil promotes ethylene production and the accumulation of ETHYLENE INSENSITIVE 3-LIKE 1 (OsEIL1) in rice roots”
Claim · model-written summary
OsEIL1 directly activates OsWOX11 expression.
- Taxon
- riceOryza sativat0
- Gene
- OsEIL1e0
- Outcome
- expression of WUSCHEL-RELATED HOMEOBOX 11 (OsWOX11)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsEIL1 directly activates the expression of WUSCHEL-RELATED HOMEOBOX 11 (OsWOX11)”
t0“rice crown root development”
Claim · model-written summary
OsWOX11 activates crown root emergence and growth.
- Taxon
- riceOryza sativat0
- Gene
- OsWOX11e0
- Outcome
- crown root emergence and growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsWOX11), an activator of crown root emergence and growth”
t0“rice crown root development”
Claim · model-written summary
OsWOX11 mutations delay crown root development.
- Taxon
- riceOryza sativat0
- Treatment
- OsWOX11 mutationse0
- Gene
- OsWOX11e0
- Outcome
- crown root developmente0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsWOX11 mutations delay crown root development, thus impairing the plant's response to ethylene and soil compaction”
t0“rice crown root development”
Claim · model-written summary
OsWOX11 mutations impair response to ethylene and soil compaction.
- Taxon
- riceOryza sativat0
- Treatment
- OsWOX11 mutationse0
- Outcome
- response to ethylene and soil compactione0
- Direction
- impairinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsWOX11 mutations delay crown root development, thus impairing the plant's response to ethylene and soil compaction”
t0“rice crown root development”
Claim · model-written summary
OsWOX11 functions downstream of OsEIL1.
- Taxon
- riceOryza sativat0
- Gene
- OsWOX11e0
- Outcome
- functions downstream of OsEIL1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsWOX11 functions downstream of OsEIL1”
t0“rice crown root development”
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