Abstract
In this work, brassinosteroid (BR)-induced root asymmetric growth as well as its interaction with ethylene (ETH) were investigated. The results reveal that 2, 4-epibrassinolide (2,4-eBL) can induce asymmetric growth of the primary roots of monocotyledonous Oryza sativa to form root coils and waves under both illumination and dark conditions. Similarly, ETH can also induce asymmetric growth of the primary roots of O. sativa to form hooked structures. Upon adding a concentration of 2 × 10−8 M 2,4-eBL and inhibitors of ethylene simultaneously, silver thiosulfate (STS) and aminooxyacetic acid could completely eliminate the 2,4-eBL-induced asymmetric growth of roots, while the asymmetric growth could also be partly eliminated by CoCl2. Meanwhile, the effect of ETH inhibitors was proven to be reversible, wherein 2,4-eBL can exert its function and induce the asymmetric growth of O. sativa roots after the removal of STS. These conclusions provide a scientific foundation for further investigations of the relationships between BR and ETH.
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Claims 5
Claim · model-written summary
2,4-eBL induced asymmetric growth and coils and waves in Oryza sativa primary roots under light and dark conditions.
- Taxon
- Oryza sativa
Oryza sativae0 - Organ / stage
- primary rootse0
- Treatment
- 2, 4-epibrassinolide (2,4-eBL)e0
- Outcome
- asymmetric growth of the primary rootse0
- Qualifier
- under both illumination and dark conditionse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2, 4-epibrassinolide (2,4-eBL) can induce asymmetric growth of the primary roots of monocotyledonous Oryza sativa to form root coils and waves under both illumination and dark conditions.”
Claim · model-written summary
Ethylene induced hooked asymmetric primary roots in O. sativa.
- Taxon
- O. sativaOryza sativae0
- Organ / stage
- primary rootse0
- Treatment
- ETHe0
- Outcome
- asymmetric growth of the primary rootse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ETH can also induce asymmetric growth of the primary roots of O. sativa to form hooked structures.”
Claim · model-written summary
Silver thiosulfate and aminooxyacetic acid completely eliminated 2,4-eBL-induced root asymmetry.
- Taxon
- O. sativaOryza sativat0
- Treatment
- silver thiosulfate (STS) and aminooxyacetic acide0
- Outcome
- asymmetric growth of rootse0
- Direction
- completely eliminatee0
- Comparator
- 2,4-eBL-inducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“silver thiosulfate (STS) and aminooxyacetic acid could completely eliminate the 2,4-eBL-induced asymmetric growth of roots”
t0“O. sativa root”
Claim · model-written summary
CoCl2 partly eliminated 2,4-eBL-induced asymmetric root growth.
- Taxon
- O. sativaOryza sativat0
- Treatment
- CoCl2e0
- Outcome
- asymmetric growthe0
- Direction
- partly eliminatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the asymmetric growth could also be partly eliminated by CoCl2.”
t0“O. sativa root”
Claim · model-written summary
2,4-eBL again induced asymmetric O. sativa root growth after STS removal.
- Taxon
- O. sativaOryza sativae0
- Treatment
- 2,4-eBLe0
- Outcome
- asymmetric growth of O. sativa rootse0
- Qualifier
- after the removal of STSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2,4-eBL can exert its function and induce the asymmetric growth of O. sativa roots after the removal of STS.”
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