Claim · model-written summary
Ambient root temperatures increased average root diameter.
- Taxon
- Lactuca sativa
Lactuca sativat0 - Treatment
- A-RZTe0
- Outcome
- average root diametere0
- Direction
- increasede0
- Comparator
- constant 20 degrees C root-zone temperaturee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with plants grown at a constant 20 degrees C root-zone temperature, A-RZT plants showed decreased stomatal conductance, leaf relative water content, photosynthetic CO(2) assimilation, shoot and root biomass, total root length, the number of root tips, and root surface area, but increased average root diameter.”
t0“Lactuca sativa”
Title
L. Qin; J. He; S. K. Lee; et al. Journal of Experimental Botany 2007. doi:10.1093/jxb/erm156
Other claims from this paper (18)
- Intervention effect High temperature inhibited seedling root elongation by 39%.
- Intervention effect High temperature increased root diameter by 25%.
- Intervention effect Aminooxyacetic acid partially alleviated root elongation inhibition.
- Intervention effect Aminoisobutyric acid partially alleviated root elongation inhibition.
- Intervention effect ACC at 1 microM mimicked high-temperature inhibition of root elongation.
- Intervention effect ACC at 1 mM mimicked high-temperature increases in root diameter.
- Intervention effect Ambient root temperatures decreased stomatal conductance, water content and carbon assimilation.
- Intervention effect Ambient root temperatures decreased shoot and root biomass and total root length.
- Intervention effect Ambient root temperatures decreased root tip number and root surface area.
- Intervention effect ACC decreased conductance and assimilation, mimicking ambient-temperature responses.
- Intervention effect ACC decreased shoot and root biomass and total root length.
- Intervention effect ACC decreased root tip number and surface area.
- Intervention effect ACC increased average root diameter.
- Intervention effect ACC did not influence relative water content.
- Intervention effect Aminoisobutyric acid increased conductance and water content and decreased diameter, while other growth and assimilation measures were unaffected.
- Intervention effect Aminooxyacetic acid increased conductance and water content and decreased diameter, while other growth and assimilation measures were unaffected.
- Mechanism Ethylene regulates root morphology and elongation at ambient root temperatures.
- Recommendation Biosynthesis inhibitors have limited use for ameliorating ambient-temperature growth inhibition because shoot carbon gain did not improve.