Abstract
Root architecture and function are critical for plants to secure water and nutrient supply from the soil, but environmental stresses alter root development. The phytohormone jasmonic acid (JA) regulates plant growth and responses to wounding and other stresses, but its role in root development for adaptation to environmental challenges had not been well investigated. We discovered a novel JA Upregulated Protein 1 gene (JAUP1) that has recently evolved in rice and is specific to modern rice accessions. JAUP1 regulates a self-perpetuating feed-forward loop to activate the expression of genes involved in JA biosynthesis and signalling that confers tolerance to abiotic stresses and regulates auxin-dependent root development. Ectopic expression of JAUP1 alleviates abscisic acid- and salt-mediated suppression of lateral root (LR) growth. JAUP1 is primarily expressed in the root cap and epidermal cells (EPCs) that protect the meristematic stem cells and emerging LRs. Wound-activated JA/JAUP1 signalling promotes crosstalk between the root cap of LR and parental root EPCs, as well as induces cell wall remodelling in EPCs overlaying the emerging LR, thereby facilitating LR emergence even under ABA-suppressive conditions. Elevated expression of JAUP1 in transgenic rice or natural rice accessions enhances abiotic stress tolerance and reduces grain yield loss under a limited water supply. We reveal a hitherto unappreciated role for wound-induced JA in LR development under abiotic stress and suggest that JAUP1 can be used in biotechnology and as a molecular marker for breeding rice adapted to extreme environmental challenges and for the conservation of water resources.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
JAUP1 regulates a feed-forward loop that activates jasmonate biosynthesis and signalling genes and confers abiotic stress tolerance.
- Taxon
- rice
Oryza sativae0 - Gene
- JAUP1e1
- Outcome
- tolerance to abiotic stressese1
- Qualifier
- self-perpetuating feed-forward loope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e1“JAUP1 regulates a self-perpetuating feed-forward loop to activate the expression of genes involved in JA biosynthesis and signalling that confers tolerance to abiotic stresses and regulates auxin-dependent root development”
Claim · model-written summary
Ectopic expression of JAUP1 alleviates ABA- and salt-mediated suppression of lateral root growth.
- Taxon
- riceOryza sativae0
- Treatment
- Ectopic expression of JAUP1e2
- Gene
- JAUP1e2
- Outcome
- lateral root (LR) growthe2
- Direction
- alleviatese2
- Qualifier
- abscisic acid- and salt-mediated suppressione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e2“Ectopic expression of JAUP1 alleviates abscisic acid- and salt-mediated suppression of lateral root (LR) growth”
Claim · model-written summary
JAUP1 is primarily expressed in the root cap and epidermal cells.
- Taxon
- riceOryza sativae0
- Organ / stage
- root cap and epidermal cellse3
- Gene
- JAUP1e3
- Outcome
- primarily expressede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e3“JAUP1 is primarily expressed in the root cap and epidermal cells (EPCs) that protect the meristematic stem cells and emerging LRs”
Claim · model-written summary
Wound-activated JA/JAUP1 signalling facilitates lateral root emergence even under ABA-suppressive conditions.
- Taxon
- riceOryza sativae0
- Treatment
- Wound-activated JA/JAUP1 signallinge4
- Outcome
- LR emergencee4
- Direction
- facilitatinge4
- Qualifier
- even under ABA-suppressive conditionse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e4“Wound-activated JA/JAUP1 signalling promotes crosstalk between the root cap of LR and parental root EPCs, as well as induces cell wall remodelling in EPCs overlaying the emerging LR, thereby facilitating LR emergence even under ABA-suppressive conditions”
Claim · model-written summary
Wound-activated JA/JAUP1 signalling induces cell wall remodelling in the epidermal cells overlying the emerging lateral root.
- Taxon
- riceOryza sativae0
- Organ / stage
- EPCs overlaying the emerging LRe4
- Treatment
- Wound-activated JA/JAUP1 signallinge4
- Outcome
- cell wall remodellinge4
- Direction
- inducese4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e4“Wound-activated JA/JAUP1 signalling promotes crosstalk between the root cap of LR and parental root EPCs, as well as induces cell wall remodelling in EPCs overlaying the emerging LR, thereby facilitating LR emergence even under ABA-suppressive conditions”
Claim · model-written summary
Elevated JAUP1 expression enhances abiotic stress tolerance in transgenic rice and natural rice accessions.
- Taxon
- riceOryza sativae0
- Material
- transgenic rice or natural rice accessionse5
- Treatment
- Elevated expression of JAUP1e5
- Gene
- JAUP1e5
- Outcome
- abiotic stress tolerancee5
- Direction
- enhancese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e5“Elevated expression of JAUP1 in transgenic rice or natural rice accessions enhances abiotic stress tolerance and reduces grain yield loss under a limited water supply”
Claim · model-written summary
Elevated JAUP1 expression reduces grain yield loss under a limited water supply.
- Taxon
- riceOryza sativae0
- Treatment
- Elevated expression of JAUP1e5
- Gene
- JAUP1e5
- Outcome
- grain yield losse5
- Direction
- reducese5
- Qualifier
- under a limited water supplye5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that has recently evolved in rice and is specific to modern rice accessions”
e5“Elevated expression of JAUP1 in transgenic rice or natural rice accessions enhances abiotic stress tolerance and reduces grain yield loss under a limited water supply”
Claim · model-written summary
JAUP1 can be used as a molecular marker for breeding rice adapted to extreme environmental challenges.
- Taxon
- riceOryza sativae6
- Gene
- JAUP1e6
- Outcome
- molecular marker for breeding ricee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“suggest that JAUP1 can be used in biotechnology and as a molecular marker for breeding rice adapted to extreme environmental challenges”
The same questions in other papers
jasmonic acid · growth · Oryza sativa (rice)Results differ
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 papers →jasmonic acid · yield · Oryza sativa (rice)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
7 papers more in this group
See all 11 papers →mechanical · growth · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
1 paper more in this group
See all 5 papers →overexpression · growth · Oryza sativa (rice)Positive and negative results
9 papers in the same direction as this paper · 10 in the opposite direction
- negative
- no effect
- negative
16 papers more in this group
See all 20 papers →transgenic · yield · Oryza sativa (rice)Positive and negative results
80 papers in the same direction as this paper · 18 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- negative
98 papers more in this group
See all 102 papers →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.