Claim · model-written summary
The authors infer coadaptation between seed dormancy and dependence of endosperm hydrolysis on embryo-produced gibberellins.
- Taxon
- Avena fatua L.
Avena fatuae0 - Organ / stage
- endosperme1
- Compound
- gibberellinse1
- Outcome
- coadaptation of seed dormancy and a rigorous dependence of endosperm hydrolysise1
Not reportedMaterialGeneInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avena fatua L. (wild oats)”
e1“natural selection has resulted in coadaptation of seed dormancy and a rigorous dependence of endosperm hydrolysis on gibberellins produced by the germinating embryo”
Title
Mahesh K. Upadhyaya; James M. Naylor; Graham M. Simpson Canadian Journal of Botany 1982. doi:10.1139/b82-144
Other claims from this paper (4)
- Intervention effect Endosperm from six dormant lines produced no α-amylase unless GA3 was supplied.
- Observation Four of six nondormant lines produced and released substantial α-amylase and reducing sugars autonomously.
- Mechanism Variation among nondormant lines argues against simple pleiotropy and suggests multiple loci or alleles.
- Association The authors infer that long-term endosperm stability gives little advantage to wild-oat seeds with brief soil residence.