Abstract
Autophagy (self-eating), a conserved pathway in eukaryotes, which is designed to handle cytoplasmic material in bulk and plays an important role in the remobilization of nutrient, such as nitrogen (N) under suboptimal nutrient conditions. Here, we identified a core component of an autophagy gene in rice (Oryza sativa), OsATG8a, with increased expression levels under N starvation conditions. Overexpression of OsATG8a significantly enhanced the level of autophagy and the number of effective tillers in the transgenic rice. In addition, the transgenic lines accumulated more N in grains than in the dry remains and the yield was significantly increased under normal N conditions. Further N allocation studies revealed that the nitrogen uptake efficiency (NUpE) and nitrogen use efficiency (NUE) significantly increased. Otherwise, under suboptimal N conditions, overexpression of OsATG8a did not seem to have any effect on yield and NUE, but NUpE was still improved significantly. Based on our findings, we consider OsATG8a to be a great candidate gene to increase NUE and yield.
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Claims 9
Claim · model-written summary
OsATG8a expression increased in rice under nitrogen starvation.
- Taxon
- rice
Oryza sativae1 - Treatment
- N starvation conditionse1
- Gene
- OsATG8ae1
- Outcome
- expression levelse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“we identified a core component of an autophagy gene in rice (Oryza sativa), OsATG8a, with increased expression levels under N starvation conditions”
Claim · model-written summary
Overexpression of OsATG8a significantly enhanced autophagy level in transgenic rice.
- Taxon
- riceOryza sativat0
- Treatment
- Overexpression of OsATG8ae2
- Gene
- OsATG8ae2
- Outcome
- level of autophagye2
- Direction
- enhancede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e2“Overexpression of OsATG8a significantly enhanced the level of autophagy and the number of effective tillers in the transgenic rice”
Claim · model-written summary
Overexpression of OsATG8a significantly enhanced the number of effective tillers in transgenic rice.
- Taxon
- riceOryza sativat0
- Treatment
- Overexpression of OsATG8ae2
- Gene
- OsATG8ae2
- Outcome
- number of effective tillerse2
- Direction
- enhancede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e2“Overexpression of OsATG8a significantly enhanced the level of autophagy and the number of effective tillers in the transgenic rice”
Claim · model-written summary
Transgenic rice lines accumulated more N in grains than in the dry remains.
- Taxon
- riceOryza sativat0
- Material
- transgenic linese3
- Outcome
- N in grainse3
- Direction
- moree3
- Comparator
- dry remainse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e3“the transgenic lines accumulated more N in grains than in the dry remains and the yield was significantly increased under normal N conditions”
Claim · model-written summary
Overexpression of OsATG8a significantly increased yield in rice under normal N conditions.
- Taxon
- riceOryza sativat0
- Treatment
- Overexpression of OsATG8ae2
- Outcome
- yielde3
- Direction
- increasede3
- Qualifier
- normal N conditionse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e2“Overexpression of OsATG8a significantly enhanced the level of autophagy and the number of effective tillers in the transgenic rice”
e3“the transgenic lines accumulated more N in grains than in the dry remains and the yield was significantly increased under normal N conditions”
Claim · model-written summary
Overexpression of OsATG8a significantly increased nitrogen uptake efficiency and nitrogen use efficiency in rice.
- Taxon
- riceOryza sativat0
- Treatment
- Overexpression of OsATG8ae2
- Outcome
- nitrogen uptake efficiency (NUpE) and nitrogen use efficiency (NUE)e4
- Direction
- significantly increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e2“Overexpression of OsATG8a significantly enhanced the level of autophagy and the number of effective tillers in the transgenic rice”
e4“the nitrogen uptake efficiency (NUpE) and nitrogen use efficiency (NUE) significantly increased”
Claim · model-written summary
Under suboptimal N, overexpression of OsATG8a did not seem to have any effect on yield and NUE.
- Taxon
- riceOryza sativat0
- Treatment
- overexpression of OsATG8ae5
- Outcome
- yield and NUEe5
- Direction
- did not seem to have any effecte5
- Qualifier
- under suboptimal N conditionse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e5“under suboptimal N conditions, overexpression of OsATG8a did not seem to have any effect on yield and NUE, but NUpE was still improved significantly”
Claim · model-written summary
Under suboptimal N, overexpression of OsATG8a still significantly improved NUpE in rice.
- Taxon
- riceOryza sativat0
- Treatment
- overexpression of OsATG8ae5
- Outcome
- NUpEe5
- Direction
- improvede5
- Qualifier
- under suboptimal N conditionse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e5“under suboptimal N conditions, overexpression of OsATG8a did not seem to have any effect on yield and NUE, but NUpE was still improved significantly”
Claim · model-written summary
OsATG8a is a candidate gene to increase NUE and yield in rice.
- Taxon
- riceOryza sativat0
- Gene
- OsATG8ae6
- Outcome
- candidate gene to increase NUE and yielde6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Increased Autophagy of Rice”
e6“we consider OsATG8a to be a great candidate gene to increase NUE and yield”
The same questions in other papers
nitrogen · molecular: expression · Oryza sativa (rice)Positive and negative results
15 papers in the same direction as this paper · 29 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- positive
- positive
41 papers more in this group
See all 45 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.