Abstract
Root system architecture (RSA) plays a pivotal role in efficient uptake of essential nutrients, such as phosphorous (P), nitrogen (N), and water. In soils with heterogeneous nutrient distribution, root plasticity can optimize acquisition and plant growth. Here, we present evidence that a constitutive RSA can confer benefits for sorghum grown under both sufficient and limiting growth conditions. Our studies, using P efficient SC103 and inefficient BTx635 sorghum cultivars, identified significant differences in root traits, with SC103 developing a larger root system with more and longer lateral roots, and enhanced shoot biomass, under both nutrient sufficient and deficient conditions. In addition to this constitutive attribute, under P deficiency, both cultivars exhibited an initial increase in lateral root development; however, SC103 still maintained the larger root biomass. Although N deficiency and drought stress inhibited both root and shoot growth, for both sorghum cultivars, SC103 again maintained the better performance. These findings reveal that SC103, a P efficient sorghum cultivar, also exhibited enhanced growth performance under N deficiency and drought. Our results provide evidence that this constitutive nature of RSA can provide an avenue for breeding nutrient- and drought-resilient crops. Supplementary Information: The online version contains supplementary material available at 10.1007/s42994-023-00112-w.
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Claims 10
Claim · model-written summary
SC103 had a larger root system than BTx635 under sufficient and deficient nutrients.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC103 developing a larger root system with more and longer lateral roots, and enhanced shoot biomass, under both nutrient sufficient and deficient conditions”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
SC103 had more lateral roots than BTx635.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC103 developing a larger root system with more and longer lateral roots”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
SC103 had longer lateral roots than BTx635.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC103 developing a larger root system with more and longer lateral roots”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
SC103 had enhanced shoot biomass under sufficient and deficient nutrients.
- Material
- SC103t1
- Outcome
- shoot biomasse0
- Direction
- enhancede0
- Qualifier
- under both nutrient sufficient and deficient conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced shoot biomass, under both nutrient sufficient and deficient conditions”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
Phosphorus deficiency initially increased lateral root development in both cultivars.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under P deficiency, both cultivars exhibited an initial increase in lateral root development”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
Under phosphorus deficiency SC103 retained greater root biomass.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC103 still maintained the larger root biomass”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
Nitrogen deficiency inhibited root and shoot growth in both sorghum cultivars.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N deficiency and drought stress inhibited both root and shoot growth”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
Drought stress inhibited root and shoot growth in both sorghum cultivars.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N deficiency and drought stress inhibited both root and shoot growth”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
SC103 maintained better performance than BTx635 under nitrogen deficiency.
- Material
- SC103e0
- Outcome
- better performancee0
- Direction
- bettere0
- Qualifier
- N deficiencye1
- Comparator
- BTx635t1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC103 again maintained the better performance”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
e1“N deficiency and drought stress inhibited both root and shoot growth”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
Claim · model-written summary
SC103 maintained better performance than BTx635 under drought stress.
- Material
- SC103e0
- Outcome
- better performancee0
- Direction
- bettere0
- Qualifier
- drought stresse1
- Comparator
- BTx635t1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SC103 again maintained the better performance”
t0“P efficient SC103 and inefficient BTx635 sorghum cultivars”
e1“N deficiency and drought stress inhibited both root and shoot growth”
t1“P efficient SC103 and inefficient BTx635 sorghum cultivars”
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See all 34 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.