Abstract
High temperature stress disturbs cellular homoeostasis and results in a severe retardation in crop growth and development. Thus, it is important to reveal the mechanism of plants coping with heat stress. In this study, a novel gene that we identified from Brassica napus, referred to as BnTR1, was found to play a key role in heat stress response in planta. BnTR1 is a membrane-bound RINGv (C₄HC₃) protein that displays E3 ligase activity in vitro. We demonstrated that modest expression of BnTR1 is sufficient to minimize adverse environmental influence and confers thermal resistance on development without any detrimental effects in B. napus and Oryza sativa. Our investigation into the action mechanism indicates that BnTR1 is likely to be involved in mediating Ca²⁺ dynamics by regulating the activity of calcium channels, which further alters the transcripts of heat shock factors and heat shock proteins contributing to plant thermotolerance. Hence, our study identified BnTR1 as a novel key factor underlying a conserved mechanism conferring thermal resistance in plants.
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Claims 5
Claim · model-written summary
BnTR1 has E3 ligase activity in vitro.
- Taxon
- Brassica napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Gene
- BnTR1e0
- Outcome
- E3 ligase activitye0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“BnTR1 is a membrane-bound RINGv (C₄HC₃) protein that displays E3 ligase activity in vitro.”
t0“Brassica napus”
Claim · model-written summary
Modest BnTR1 expression confers thermal resistance in B. napus without developmental harm.
- Taxon
- B. napusBrassica napuse0
- Treatment
- modest expression of BnTR1e0
- Gene
- BnTR1e0
- Outcome
- thermal resistance on developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“modest expression of BnTR1 is sufficient to minimize adverse environmental influence and confers thermal resistance on development without any detrimental effects in B. napus and Oryza sativa”
Claim · model-written summary
Modest BnTR1 expression confers thermal resistance in Oryza sativa without developmental harm.
- Taxon
- Oryza sativa
Oryza sativae0 - Treatment
- modest expression of BnTR1e0
- Gene
- BnTR1e0
- Outcome
- thermal resistance on developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“modest expression of BnTR1 is sufficient to minimize adverse environmental influence and confers thermal resistance on development without any detrimental effects in B. napus and Oryza sativa”
Claim · model-written summary
BnTR1 likely mediates calcium dynamics through calcium channel activity.
- Taxon
- Brassica napusBrassica napust0
- Gene
- BnTR1e0
- Outcome
- Ca²⁺ dynamicse0
- Qualifier
- regulating the activity of calcium channelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BnTR1 is likely to be involved in mediating Ca²⁺ dynamics by regulating the activity of calcium channels”
t0“Brassica napus”
Claim · model-written summary
The proposed mechanism alters heat shock factor and protein transcripts.
- Taxon
- plantsViridiplantaet0
- Gene
- heat shock factors and heat shock proteinse0
- Outcome
- transcripts of heat shock factors and heat shock proteinse0
- Qualifier
- contributing to plant thermotolerancee0
Verbatim
e0“which further alters the transcripts of heat shock factors and heat shock proteins contributing to plant thermotolerance”
t0“plants”
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See all 7 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.