Claim · model-written summary
N deficiency was associated with root growth.
- Taxon
- Nicotiana tabacum seedlings
Nicotiana tabacume0 - Treatment
- deficienciese1
- Outcome
- root growthe1
- Direction
- increasede1
- Comparator
- shoot growthe1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nicotiana tabacum seedlings”
e1“both deficiencies were associated with increased root growth relative to shoot growth, starch accumulation in the shoots, and soluble carbohydrate accumulation, especially hexoses, in the roots”
Title
M. J. PAUL; M. STITT Plant Cell & Environment 1993. doi:10.1111/j.1365-3040.1996.tb02062.x
Other claims from this paper (19)
- Intervention effect P deficiency lowered hexose phosphates and 3-PGA in shoots and roots.
- Intervention effect N deficiency raised hexose phosphates and 3-PGA in shoots and roots.
- Intervention effect P deficiency raised the hexose phosphate to 3-PGA ratio and fructose-2,6-bisphosphate.
- Intervention effect N deficiency lowered the hexose phosphate to 3-PGA ratio and fructose-2,6-bisphosphate.
- Association P deficiency was associated with root growth.
- Association P deficiency was associated with starch accumulation.
- Association P deficiency was associated with soluble carbohydrate accumulation.
- Association N deficiency was associated with starch accumulation.
- Association N deficiency was associated with soluble carbohydrate accumulation.
- Observation Enzymes for sucrose degradation and glycolysis remained unchanged or declined in shoots and roots.
- Intervention effect Added sucrose stimulated growth with complete nutrition.
- Intervention effect Added sucrose increased protein content, especially in roots, with complete nutrition.
- Intervention effect Added sucrose preferentially increased root sucrose synthase activity with complete nutrition.
- Intervention effect With low P, sucrose increased root enzyme activities including sucrose synthase.
- Intervention effect With low P, sucrose increased protein content particularly in roots.
- Intervention effect With low P, sucrose did not increase growth.
- Intervention effect With N deficiency, sucrose decreased shoot protein, Rubisco and chlorophyll.
- Intervention effect With N deficiency, sucrose raised root protein content.
- Intervention effect With N deficiency, sucrose increased root catabolic enzyme activities and growth.