Paper · 2024 · PLANT PHYSIOLOGY

Rice transcription factor OsWRKY37 positively regulates flowering time and grain fertility under copper deficiency

Chenchen Ji; Haixing Li; Jingli Ding; et al.

17
claims
32
verbatim quotes
19
citations
4
research areas
✓
Open access

Abstract

Efficient uptake, translocation, and distribution of Cu to rice (Oryza sativa) spikelets is crucial for flowering and yield production. However, the regulatory factors involved in this process remain unidentified. In this study, we isolated a WRKY transcription factor gene induced by Cu deficiency, OsWRKY37, and characterized its regulatory role in Cu uptake and transport in rice. OsWRKY37 was highly expressed in rice roots, nodes, leaf vascular bundles, and anthers. Overexpression of OsWRKY37 promoted the uptake and root-to-shoot translocation of Cu in rice under -Cu condition but not under +Cu condition. While mutation of OsWRKY37 significantly decreased Cu concentrations in the stamen, the root-to-shoot translocation and distribution ratio in brown rice affected pollen development, delayed flowering time, decreased fertility, and reduced grain yield under -Cu condition. yeast one-hybrid, transient co-expression and EMSAs, together with in situ RT-PCR and RT-qPCR analysis, showed that OsWRKY37 could directly bind to the upstream promoter region of OsCOPT6 (copper transporter) and OsYSL16 (yellow stripe-like protein) and positively activate their expression levels. Analyses of oscopt6 mutants further validated its important role in Cu uptake in rice. Our study demonstrated that OsWRKY37 acts as a positive regulator involved in the uptake, root-to-shoot translocation, and distribution of Cu through activating the expression of OsCOPT6 and OsYSL16, which is important for pollen development, flowering, fertility, and grain yield in rice under Cu deficient conditions. Our results provide a genetic strategy for improving rice yield under Cu deficient condition.

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Claims 17

Associationobservedoriginal resultmeasured

Claim · model-written summary

OsWRKY37 is a WRKY transcription factor gene induced by copper deficiency.

Treatment
Cu deficiencye0
Gene
OsWRKY37e0
Outcome
WRKY transcription factor genee0
Direction
inducede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e0

“a WRKY transcription factor gene induced by Cu deficiency, OsWRKY37”

✓ located verbatim in the source · abstract, characters 241–308 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

OsWRKY37 is highly expressed in rice roots, nodes and leaf vascular bundles.

Organ / stage
roots, nodes, leaf vascular bundlese1
Gene
OsWRKY37e1
Outcome
highly expressede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e1

“OsWRKY37 was highly expressed in rice roots, nodes, leaf vascular bundles, and anthers”

✓ located verbatim in the source · abstract, characters 384–470 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

OsWRKY37 is highly expressed in rice anthers.

Organ / stage
antherse1
Gene
OsWRKY37e1
Outcome
highly expressede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e1

“OsWRKY37 was highly expressed in rice roots, nodes, leaf vascular bundles, and anthers”

✓ located verbatim in the source · abstract, characters 384–470 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Overexpression of OsWRKY37 promoted copper uptake and root-to-shoot translocation under -Cu condition.

Treatment
Overexpression of OsWRKY37e2
Gene
OsWRKY37e2
Outcome
uptake and root-to-shoot translocatione2
Direction
promotede2
Qualifier
under -Cu conditione2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e2

“Overexpression of OsWRKY37 promoted the uptake and root-to-shoot translocation of Cu in rice under -Cu condition but not under +Cu condition”

✓ located verbatim in the source · abstract, characters 472–612 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Overexpression of OsWRKY37 did not change copper uptake or root-to-shoot translocation under +Cu condition.

Treatment
Overexpression of OsWRKY37e2
Gene
OsWRKY37e2
Outcome
uptake and root-to-shoot translocatione2
Direction
no_changeinferrede2
Qualifier
under +Cu conditione2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e2

“Overexpression of OsWRKY37 promoted the uptake and root-to-shoot translocation of Cu in rice under -Cu condition but not under +Cu condition”

✓ located verbatim in the source · abstract, characters 472–612 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Mutation of OsWRKY37 significantly decreased copper concentrations in the stamen.

Organ / stage
stamene3
Treatment
mutation of OsWRKY37e3
Gene
OsWRKY37e3
Outcome
Cu concentrations in the stamene3
Direction
decreasede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e3

“While mutation of OsWRKY37 significantly decreased Cu concentrations in the stamen, the root-to-shoot translocation and distribution ratio in brown rice affected pollen development, delayed flowering time, decreased fertility, and reduced grain yield under -Cu condition”

✓ located verbatim in the source · abstract, characters 614–884 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mutation of OsWRKY37 affected pollen development under -Cu condition.

Treatment
mutation of OsWRKY37e3
Outcome
pollen developmente3
Qualifier
under -Cu conditione3

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e3

“While mutation of OsWRKY37 significantly decreased Cu concentrations in the stamen, the root-to-shoot translocation and distribution ratio in brown rice affected pollen development, delayed flowering time, decreased fertility, and reduced grain yield under -Cu condition”

✓ located verbatim in the source · abstract, characters 614–884 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mutation of OsWRKY37 delayed flowering time under -Cu condition.

Treatment
mutation of OsWRKY37e3
Outcome
flowering timee3
Direction
delayede3
Qualifier
under -Cu conditione3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e3

“While mutation of OsWRKY37 significantly decreased Cu concentrations in the stamen, the root-to-shoot translocation and distribution ratio in brown rice affected pollen development, delayed flowering time, decreased fertility, and reduced grain yield under -Cu condition”

✓ located verbatim in the source · abstract, characters 614–884 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mutation of OsWRKY37 decreased fertility under -Cu condition.

Treatment
mutation of OsWRKY37e3
Outcome
fertilitye3
Direction
decreasede3
Qualifier
under -Cu conditione3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e3

“While mutation of OsWRKY37 significantly decreased Cu concentrations in the stamen, the root-to-shoot translocation and distribution ratio in brown rice affected pollen development, delayed flowering time, decreased fertility, and reduced grain yield under -Cu condition”

✓ located verbatim in the source · abstract, characters 614–884 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mutation of OsWRKY37 reduced grain yield under -Cu condition.

Treatment
mutation of OsWRKY37e3
Outcome
grain yielde3
Direction
reducede3
Qualifier
under -Cu conditione3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e3

“While mutation of OsWRKY37 significantly decreased Cu concentrations in the stamen, the root-to-shoot translocation and distribution ratio in brown rice affected pollen development, delayed flowering time, decreased fertility, and reduced grain yield under -Cu condition”

✓ located verbatim in the source · abstract, characters 614–884 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

OsWRKY37 directly binds the upstream promoter region of OsCOPT6.

Gene
OsCOPT6e4
Outcome
directly bind to the upstream promoter regione4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e4

“showed that OsWRKY37 could directly bind to the upstream promoter region of OsCOPT6 (copper transporter) and OsYSL16 (yellow stripe-like protein) and positively activate their expression levels”

✓ located verbatim in the source · abstract, characters 990–1183 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

OsWRKY37 positively activates the expression levels of OsCOPT6.

Gene
OsCOPT6e4
Outcome
expression levelse4
Direction
increaseinferrede4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e4

“showed that OsWRKY37 could directly bind to the upstream promoter region of OsCOPT6 (copper transporter) and OsYSL16 (yellow stripe-like protein) and positively activate their expression levels”

✓ located verbatim in the source · abstract, characters 990–1183 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

OsWRKY37 directly binds the upstream promoter region of OsYSL16.

Gene
OsYSL16e4
Outcome
directly bind to the upstream promoter regione4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e4

“showed that OsWRKY37 could directly bind to the upstream promoter region of OsCOPT6 (copper transporter) and OsYSL16 (yellow stripe-like protein) and positively activate their expression levels”

✓ located verbatim in the source · abstract, characters 990–1183 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

OsWRKY37 positively activates the expression levels of OsYSL16.

Gene
OsYSL16e4
Outcome
expression levelse4
Direction
increaseinferrede4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e4

“showed that OsWRKY37 could directly bind to the upstream promoter region of OsCOPT6 (copper transporter) and OsYSL16 (yellow stripe-like protein) and positively activate their expression levels”

✓ located verbatim in the source · abstract, characters 990–1183 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Analyses of oscopt6 mutants validated an important role of OsCOPT6 in copper uptake in rice.

Treatment
oscopt6 mutantse5
Gene
oscopt6e5
Outcome
Cu uptakee5
Direction
decreaseinferrede5
Qualifier
important rolee5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e5

“Analyses of oscopt6 mutants further validated its important role in Cu uptake in rice”

✓ located verbatim in the source · abstract, characters 1185–1270 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

OsWRKY37 acts as a positive regulator of copper uptake, root-to-shoot translocation and distribution by activating OsCOPT6 and OsYSL16.

Gene
OsCOPT6 and OsYSL16e6
Outcome
uptake, root-to-shoot translocation, and distribution of Cue6
Qualifier
through activating the expression of OsCOPT6 and OsYSL16e6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice transcription factor OsWRKY37”

✓ located verbatim in the source · title, characters 0–34 · show in text ↑
e6

“Our study demonstrated that OsWRKY37 acts as a positive regulator involved in the uptake, root-to-shoot translocation, and distribution of Cu through activating the expression of OsCOPT6 and OsYSL16”

✓ located verbatim in the source · abstract, characters 1272–1470 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

A genetic strategy based on OsWRKY37 could improve rice yield under copper deficient conditions.

Outcome
improving rice yielde7
Qualifier
under Cu deficient conditione7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e7

“Our results provide a genetic strategy for improving rice yield under Cu deficient condition”

✓ located verbatim in the source · abstract, characters 1592–1684 · show in text ↑

loss of function · phenology · Oryza sativa (rice)Positive and negative results

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132 papers: 28 positive, 104 negative or no effect

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loss of function · yield · Oryza sativa (rice)Positive and negative results

134 papers: 62 positive, 72 negative or no effect

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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.