Claim · model-written summary
Authors propose GABA and proline for drought tolerance and NN for rapid recovery through amino acid metabolism.
- Taxon
- creeping bentgrass
Agrostis stoloniferae0 - Treatment
- GABA or prolinee0
- Outcome
- tolerance of creeping bentgrass to drought stresse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“GABA or proline were mainly effective in promoting the tolerance of creeping bentgrass to drought stress while inorganic NN was effective in promoting rapid postdrought recovery and regrowth potential through the activation of amino acid metabolism”
Title
Cathryn Chapman; Stephanie Rossi; Bo Yuan; et al. Journal of the American Society for Horticultural Science 2022. doi:10.21273/jashs05215-22
Other claims from this paper (12)
- Intervention effect GABA maintained higher turf quality, dark green color index and stolon length during drought.
- Intervention effect Proline maintained higher turf quality, color index and stolon length during drought.
- Intervention effect Combined GABA and proline maintained higher turf quality, color index and stolon length during drought.
- Intervention effect Proline maintained higher leaf relative water content during drought.
- Intervention effect Proline maintained longer stolons during rewatering.
- Intervention effect Nitrogen maintained higher turf quality and leaf water content during drought.
- Intervention effect Nitrogen improved canopy cover, color index and stolon length during rewatering.
- Observation Proline treatment accumulated endogenous proline and alanine under drought.
- Mechanism Proline and alanine accumulation may contribute to drought tolerance and regrowth.
- Observation Nitrogen increased GABA, proline and glutamic acid accumulation.
- Mechanism Nitrogen-enhanced amino acid accumulation may aid assimilation and postdrought regrowth.
- Recommendation Endogenous amino acids may serve as biomarkers and biostimulant components for drought tolerance and recovery.