Abstract
Nitrogen (N) deficiency is one of the most common problems in soils, limiting crop growth and production. However, the effects of N limitation in seedlings on vegetative growth remain poorly understood. Here, we show that N limitation in rice seedlings restricted vegetative growth but not yield. Aboveground parts were affected mainly during the period of tillering, but belowground parts were sensitive throughout vegetative growth, especially during panicle development. At the tillering stage, N-limited plants had a significantly lower N content in shoots, but not in roots. On the other hand, N content in roots during the panicle development stage was significantly lower in N-limited plants. This distinct response was driven by significant changes in expression of N transporter genes during growth. Under N limitation, N translocation from roots to shoots was greatly sped up by systemic expression of N transporter genes to obtain balanced growth. N limitation during the seedling stage did not reduce any yield components. We conclude that the N condition during the seedling stage affects physiological responses such as N translocation through the expression of N transporter genes.
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Claims 9
Claim · model-written summary
N limitation in rice seedlings restricted vegetative growth.
- Taxon
- Rice
Oryza sativat0 - Treatment
- N limitation in rice seedlingse0
- Outcome
- vegetative growthe0
- Direction
- restrictede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e0“Here, we show that N limitation in rice seedlings restricted vegetative growth but not yield”
Claim · model-written summary
N limitation during the seedling stage did not reduce yield components.
- Taxon
- RiceOryza sativat0
- Treatment
- N limitation during the seedling stagee1
- Outcome
- yield componentse1
- Direction
- did not reducee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“N limitation during the seedling stage did not reduce any yield components”
Claim · model-written summary
Aboveground parts were affected by N limitation mainly during tillering.
- Taxon
- RiceOryza sativat0
- Organ / stage
- Aboveground partse2
- Treatment
- N limitatione3
- Outcome
- vegetative growthe3
- Qualifier
- mainly during the period of tilleringe2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e2“Aboveground parts were affected mainly during the period of tillering”
e3“N limitation in rice seedlings restricted vegetative growth”
Claim · model-written summary
Belowground parts were sensitive to N limitation throughout vegetative growth, especially during panicle development.
- Taxon
- RiceOryza sativat0
- Organ / stage
- belowground partse2
- Treatment
- N limitatione1
- Outcome
- vegetative growthe2
- Qualifier
- especially during panicle developmente2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“N limitation in rice seedlings restricted vegetative growth”
e2“belowground parts were sensitive throughout vegetative growth, especially during panicle development”
Claim · model-written summary
At the tillering stage, shoots of N-limited plants had a significantly lower N content.
- Taxon
- RiceOryza sativat0
- Organ / stage
- shootse1
- Treatment
- N-limited plantse1
- Outcome
- N content in shootse1
- Direction
- lowere1
- Qualifier
- At the tillering stagee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“At the tillering stage, N-limited plants had a significantly lower N content in shoots, but not in roots”
Claim · model-written summary
At the tillering stage, root N content of N-limited plants was not reduced.
- Taxon
- RiceOryza sativat0
- Organ / stage
- rootse1
- Treatment
- N-limited plantse1
- Outcome
- N contente1
- Qualifier
- At the tillering stagee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“At the tillering stage, N-limited plants had a significantly lower N content in shoots, but not in roots”
Claim · model-written summary
During the panicle development stage, root N content was significantly lower in N-limited plants.
- Taxon
- RiceOryza sativat0
- Organ / stage
- panicle development stagee1
- Treatment
- N-limited plantse1
- Outcome
- N content in rootse1
- Direction
- lowere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“N content in roots during the panicle development stage was significantly lower in N-limited plants”
Claim · model-written summary
Under N limitation, N translocation from roots to shoots was greatly sped up.
- Taxon
- RiceOryza sativat0
- Treatment
- N limitatione1
- Gene
- N transporter genese1
- Outcome
- N translocation from roots to shootse1
- Direction
- greatly sped upe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“Under N limitation, N translocation from roots to shoots was greatly sped up by systemic expression of N transporter genes to obtain balanced growth”
Claim · model-written summary
The distinct response of N content was driven by significant changes in expression of N transporter genes during growth.
- Taxon
- RiceOryza sativat0
- Gene
- N transporter genese1
- Outcome
- distinct responsee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Expression of Nitrogen Transporter Genes in Rice”
e1“This distinct response was driven by significant changes in expression of N transporter genes during growth”
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See all 2,045 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.