Abstract
Transcription factors regulating crop uptake and translocation of the micronutrient Cu have not been identified. We isolated a novel R2R3-MYB transcription factor, OsMYB84, and showed that it was a positive regulator involved in uptake and transport of Cu via activation of OsCOPT2 and OsHMA expression. OsMYB84 was highly expressed in roots and anthers and induced by Cu. Overexpression of OsMYB84 promoted uptake and root-to-shoot translocation of Cu in rice, facilitated Cu distribution into grain and increased grain yield. In contrast, mutation of OsMYB84 reduced Cu concentration in xylem sap. OsMYB84 bound to the promoter region of OsCOPT2 and OsHMA5 and upregulated their expression. OsCOPT2 mutants showed reduced uptake of Cu and OsHMA5 overexpression lines showed increased root-to-shoot translocation of Cu.
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Claims 9
Claim · model-written summary
OsMYB84 was identified as a positive regulator of Cu uptake and transport through OsCOPT2 and OsHMA expression.
- Taxon
- rice
Oryza sativat0 - Gene
- OsMYB84e0
- Outcome
- uptake and transport of Cue0
- Qualifier
- via activation of OsCOPT2 and OsHMA expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“We isolated a novel R2R3-MYB transcription factor, OsMYB84, and showed that it was a positive regulator involved in uptake and transport of Cu via activation of OsCOPT2 and OsHMA expression”
Claim · model-written summary
OsMYB84 was highly expressed in roots and anthers and induced by Cu.
- Taxon
- riceOryza sativat0
- Organ / stage
- roots and antherse0
- Gene
- OsMYB84e0
- Outcome
- highly expressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“OsMYB84 was highly expressed in roots and anthers and induced by Cu”
Claim · model-written summary
OsMYB84 overexpression promoted Cu uptake and root-to-shoot translocation.
- Taxon
- riceOryza sativae0
- Treatment
- Overexpression of OsMYB84e0
- Gene
- OsMYB84e0
- Outcome
- uptake and root-to-shoot translocation of Cue0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Overexpression of OsMYB84 promoted uptake and root-to-shoot translocation of Cu in rice”
Claim · model-written summary
OsMYB84 overexpression facilitated Cu distribution into grain.
- Taxon
- riceOryza sativae0
- Treatment
- Overexpression of OsMYB84e0
- Gene
- OsMYB84e0
- Outcome
- Cu distribution into graine0
- Direction
- facilitatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Overexpression of OsMYB84 promoted uptake and root-to-shoot translocation of Cu in rice, facilitated Cu distribution into grain”
Claim · model-written summary
OsMYB84 overexpression increased grain yield.
- Taxon
- riceOryza sativae0
- Treatment
- Overexpression of OsMYB84e0
- Gene
- OsMYB84e0
- Outcome
- grain yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Overexpression of OsMYB84 promoted uptake and root-to-shoot translocation of Cu in rice, facilitated Cu distribution into grain and increased grain yield”
Claim · model-written summary
OsMYB84 mutation reduced Cu concentration in xylem sap.
- Taxon
- riceOryza sativat0
- Treatment
- mutation of OsMYB84e0
- Gene
- OsMYB84e0
- Outcome
- Cu concentration in xylem sape0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“mutation of OsMYB84 reduced Cu concentration in xylem sap”
Claim · model-written summary
OsMYB84 bound the OsCOPT2 and OsHMA5 promoters and upregulated their expression.
- Taxon
- riceOryza sativat0
- Gene
- OsMYB84e0
- Outcome
- their expressione0
- Qualifier
- bound to the promoter region of OsCOPT2 and OsHMA5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“OsMYB84 bound to the promoter region of OsCOPT2 and OsHMA5 and upregulated their expression”
Claim · model-written summary
OsCOPT2 mutants had reduced Cu uptake.
- Taxon
- riceOryza sativat0
- Treatment
- OsCOPT2 mutantse0
- Gene
- OsCOPT2e0
- Outcome
- uptake of Cue0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“OsCOPT2 mutants showed reduced uptake of Cu”
Claim · model-written summary
OsHMA5 overexpression increased root-to-shoot Cu translocation.
- Taxon
- riceOryza sativat0
- Treatment
- OsHMA5 overexpression linese0
- Gene
- OsHMA5e0
- Outcome
- root-to-shoot translocation of Cue0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“OsHMA5 overexpression lines showed increased root-to-shoot translocation of Cu”
The same questions in other papers
loss of function · nutrient: content · Oryza sativa (rice)Positive and negative results
35 papers in the same direction as this paper · 20 in the opposite direction
- negative
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See all 56 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.