Abstract
Nitrogen (N) is an essential nutrient for plant growth, and most plants absorb it as nitrate. AtNRG2 has been reported to play an important role in nitrate regulation. In this study, we investigated the functions of AtNRG2 family members of Arabidopsis thaliana and maize in nitrate signalling and metabolism. Our results showed that both AtNRG2.10 and AtNRG2.15 regulated nitrate signalling and metabolism. Overexpression of AtNRG2.11 (AtNRG2) could promote plant growth and improve nitrogen use efficiency (NUE). In addition, the maize genome harbors 23 ZmNRG2 members. We detected the expression of these genes treated with nitrate and the expression of four genes was strongly induced with ZmNRG2.7 having the highest levels. Overexpression of ZmNRG2.7 in the atnrg2 mutant could restore the defects of atnrg2, suggesting that ZmNRG2.7 is involved in nitrate signalling and metabolism. Moreover, the overexpression lines of ZmNRG2.7 showed increased biomass and NUE. These findings demonstrate that at least a part of NRG2 family genes in Arabidopsis and maize regulate nitrate signalling and provide a molecular basis for improving the NUE of crops.
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Claims 10
Claim · model-written summary
AtNRG2.10 regulated nitrate signalling and metabolism.
- Taxon
- Arabidopsis
Arabidopsist0 - Gene
- AtNRG2.10e0
- Outcome
- nitrate signalling and metabolisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results showed that both AtNRG2.10 and AtNRG2.15 regulated nitrate signalling and metabolism.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
AtNRG2.15 regulated nitrate signalling and metabolism.
- Taxon
- ArabidopsisArabidopsist0
- Gene
- AtNRG2.15e0
- Outcome
- nitrate signalling and metabolisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results showed that both AtNRG2.10 and AtNRG2.15 regulated nitrate signalling and metabolism.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
AtNRG2.11 overexpression promoted plant growth.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- Overexpression of AtNRG2.11e0
- Gene
- AtNRG2.11e0
- Outcome
- plant growthe0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overexpression of AtNRG2.11 (AtNRG2) could promote plant growth and improve nitrogen use efficiency (NUE).”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
AtNRG2.11 overexpression improved nitrogen use efficiency.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- Overexpression of AtNRG2.11e0
- Gene
- AtNRG2.11e0
- Outcome
- nitrogen use efficiency (NUE)e0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overexpression of AtNRG2.11 (AtNRG2) could promote plant growth and improve nitrogen use efficiency (NUE).”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
The maize genome harbors 23 ZmNRG2 members.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition, the maize genome harbors 23 ZmNRG2 members.”
Claim · model-written summary
Nitrate strongly induced expression of four maize NRG2 genes.
- Treatment
- nitratee0
- Gene
- ZmNRG2.7e0
- Outcome
- expression of four genese0
- Direction
- strongly inducede0
- Value
- four genese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We detected the expression of these genes treated with nitrate and the expression of four genes was strongly induced with ZmNRG2.7 having the highest levels.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
ZmNRG2.7 had the highest expression among nitrate-responsive maize genes.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We detected the expression of these genes treated with nitrate and the expression of four genes was strongly induced with ZmNRG2.7 having the highest levels.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
ZmNRG2.7 overexpression restored defects in the atnrg2 mutant.
- Taxon
- ArabidopsisArabidopsist0
- Material
- atnrg2 mutante0
- Treatment
- Overexpression of ZmNRG2.7e0
- Gene
- ZmNRG2.7e0
- Outcome
- defects of atnrg2e0
- Direction
- restoree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overexpression of ZmNRG2.7 in the atnrg2 mutant could restore the defects of atnrg2, suggesting that ZmNRG2.7 is involved in nitrate signalling and metabolism.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
ZmNRG2.7 overexpression lines had increased biomass.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- overexpression lines of ZmNRG2.7e0
- Gene
- ZmNRG2.7e0
- Outcome
- biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moreover, the overexpression lines of ZmNRG2.7 showed increased biomass and NUE.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”
Claim · model-written summary
ZmNRG2.7 overexpression lines had increased nitrogen use efficiency.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- overexpression lines of ZmNRG2.7e0
- Gene
- ZmNRG2.7e0
- Outcome
- NUEe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moreover, the overexpression lines of ZmNRG2.7 showed increased biomass and NUE.”
t0“NRG2 family members of Arabidopsis and maize regulate nitrate signalling and promote nitrogen use efficiency”