Abstract
Drought stress provokes jasmonic acid (JA) signaling, which mediates plant stress responses; moreover, growing numbers of studies suggest that JA is involved in the modulation of root development under drought stress. Recently, we showed that JA promotes differentiation of xylem from procambial cells in Arabidopsis roots. Further molecular and genetic approaches revealed that the effect of JA on xylem development is caused by suppression of cytokinin responses, suggesting that JA antagonistically interacts with cytokinin to modulate xylem development. Here, we showed that, similar to JA, drought stress promotes xylem development. This suggests that the antagonistic interaction between JA and cytokinin is involved in drought-mediated xylem development, a hypothesis supported by the observation that drought stress increases JA responses and decreases cytokinin responses. Based on these findings, we propose that drought stress promotes xylem development, and the antagonistic interaction between JA and cytokinin is deeply involved in this process.
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Claims 5
Claim · model-written summary
Jasmonic acid promoted differentiation of xylem from procambial cells.
- Taxon
- Arabidopsis
Arabidopsise0 - Organ / stage
- rootse0
- Treatment
- JAe0
- Outcome
- differentiation of xylem from procambial cellse0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“JA promotes differentiation of xylem from procambial cells in Arabidopsis roots.”
Claim · model-written summary
Suppression of cytokinin responses explains the JA effect on xylem development.
- Taxon
- ArabidopsisArabidopsist0
- Compound
- cytokinine0
- Outcome
- xylem developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of JA on xylem development is caused by suppression of cytokinin responses”
t0“Arabidopsis roots”
Claim · model-written summary
Drought stress promoted xylem development.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- drought stresse0
- Outcome
- xylem developmente0
- Direction
- promotese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Here, we showed that, similar to JA, drought stress promotes xylem development.”
t0“Arabidopsis roots”
Claim · model-written summary
Drought stress increased JA responses.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- drought stresse0
- Outcome
- JA responsese0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress increases JA responses”
t0“Arabidopsis roots”
Claim · model-written summary
Drought stress decreased cytokinin responses.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- drought stresse0
- Outcome
- cytokinin responsese0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress increases JA responses and decreases cytokinin responses”
t0“Arabidopsis roots”
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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.