Claim · model-written summary
Root tip removal slightly increased the total number of lateral roots formed and emerged.
- Taxon
- Pisum sativum
Lathyrus oleraceuse1 - Treatment
- Root tip removale2
- Outcome
- total number of lateral roots formed and emergede2
- Direction
- increasede2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Pisum sativum `Alaska.'”
e2“Root tip removal slightly increased the total number of lateral roots formed and emerged from the root region remaining after tip excision”
Title
Thomas L. Rost Botanical Gazette 1986. doi:10.1086/337579
Other claims from this paper (11)
- Intervention effect Cotyledon removal completely inhibited lateral root emergence in pea seedlings.
- Intervention effect Cotyledon removal reduced the total number of initiated laterals by 40% in pea seedlings.
- Intervention effect Cotyledon removal did not alter the number of laterals initiated per cm of primary root.
- Intervention effect Epicotyl removal reduced the number of emerged lateral roots.
- Intervention effect Epicotyl removal did not change the total number of lateral roots initiated.
- Intervention effect Sucrose, nicotinic acid and pyridoxine did not promote lateral root emergence when provided as cotyledon substitutes.
- Intervention effect Thiamine did not promote lateral root emergence when provided as a cotyledon substitute.
- Intervention effect High auxin (10-4 M indolylacetic acid) promoted lateral root initiation and emergence when supplied as a cotyledon substitute.
- Intervention effect High cytokinin (10-4 M 6-benzylaminopurine) inhibited lateral root initiation and emergence when supplied as a root tip substitute.
- Intervention effect Growth regulator substitutions for the cotyledons or the root tip mimicked the substituted organs.
- Mechanism Cotyledons and root tip act together to establish auxin and cytokinin concentrations along the primary root axis that control lateral root initiation and emergence (hypothesis).