Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lateral roots failed to develop with 30 μM aluminum.

Taxon: soybeanGlycine maxt0
Treatment: 30 μM Ale0
Outcome: Lateral roots failed to develope0

Not reportedComparatorDirection

Verbatim

t0
“soybean”
✓ located verbatim in the source · title, characters 36–43

e0
“Lateral roots failed to develop on tap roots at pH<4.3 or in treatments with 30 μM Al.”
✓ located verbatim in the source · abstract, characters 894–980

Title

Hydrogen and aluminum inhibition of soybean root extension from limed soil into acid subsurface solutions

C. Sanzonowicz; T. J. Smyth; D. W. Israel Journal of Plant Nutrition 1998. doi:10.1080/01904169809365410

Other claims from this paper (10)

Intervention effect Omitting boron and zinc inhibited tap-root and lateral-root length at pH 5.2 without aluminum.
Intervention effect Hydrogen inhibited lateral-root length more than tap-root length.
Intervention effect Aluminum inhibited lateral-root length more than tap-root length.
Intervention effect Lateral roots failed to develop at pH below 4.3.
Association Relative tap-root length correlated with ferron-reactive aluminum among aluminum treatments.
Association Ferron-reactive aluminum correlated strongly with predicted Al3+ activity.
Intervention effect Al3+ activity of 2.1 μM reduced relative tap-root length by 50%.
Intervention effect Ferron-reactive aluminum of 4.9 uM reduced relative tap-root length by 50%.
Intervention effect Shoot biomass did not differ among solution treatments.
Intervention effect Soil-root biomass did not differ among solution treatments.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lateral roots failed to develop at pH below 4.3.

Taxon: soybeanGlycine maxt0
Treatment: pH<4.3e0
Outcome: Lateral roots failed to develope0

Not reportedComparatorDirection

Verbatim

t0
“soybean”
✓ located verbatim in the source · title, characters 36–43

e0
“Lateral roots failed to develop on tap roots at pH<4.3 or in treatments with 30 μM Al.”
✓ located verbatim in the source · abstract, characters 894–980

Title

Hydrogen and aluminum inhibition of soybean root extension from limed soil into acid subsurface solutions

C. Sanzonowicz; T. J. Smyth; D. W. Israel Journal of Plant Nutrition 1998. doi:10.1080/01904169809365410

Other claims from this paper (10)

Intervention effect Omitting boron and zinc inhibited tap-root and lateral-root length at pH 5.2 without aluminum.
Intervention effect Hydrogen inhibited lateral-root length more than tap-root length.
Intervention effect Aluminum inhibited lateral-root length more than tap-root length.
Intervention effect Lateral roots failed to develop with 30 μM aluminum.
Association Relative tap-root length correlated with ferron-reactive aluminum among aluminum treatments.
Association Ferron-reactive aluminum correlated strongly with predicted Al3+ activity.
Intervention effect Al3+ activity of 2.1 μM reduced relative tap-root length by 50%.
Intervention effect Ferron-reactive aluminum of 4.9 uM reduced relative tap-root length by 50%.
Intervention effect Shoot biomass did not differ among solution treatments.
Intervention effect Soil-root biomass did not differ among solution treatments.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Seedlings in the smaller seed class failed to develop a primary root.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Material: mutant seedlingse0
Organ / stage: smaller seed classe0
Outcome: failed to develop the primary roote0

Verbatim

e0
“In the smaller seed class, mutant seedlings failed to develop the primary root, possibly as a result of an earlier defect in the division of the hypophysis cell during embryo development, but they had the capacity to develop adventitious roots to complete their life cycle.”
✓ located verbatim in the source · abstract, characters 536–809

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 0–20

Title

Arabidopsis thaliana mitogen-activated protein kinase 6 is involved in seed formation and modulation of primary and lateral root development

J. S. López-Bucio; J. G. Dubrovsky; J. Raya-González; et al. Journal of Experimental Botany 2013. doi:10.1093/jxb/ert368

Other claims from this paper (14)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Primordia of two cell layers failed to develop when excised and cultured without hormones, unlike primordia of three to five cell layers.

Taxon: ArabidopsisArabidopsise0
Organ / stage: primordia that consist of 2 cell layerse2
Treatment: excised and cultured without added hormonese1
Outcome: develope2
Comparator: primordia that consist of at least 3-5 cell layerse2

Not reportedDirection

Verbatim

e0
“In both radish and Arabidopsis, lateral root initiation involves a series of rapid divisions in pericycle cells located on the xylem radius of the root”
✓ located verbatim in the source · abstract, characters 0–151

e1
“primordia of different stages were excised and cultured without added hormones”
✓ located verbatim in the source · abstract, characters 344–422

e2
“Under these conditions, primordia that consist of 2 cell layers fail to develop while primordia that consist of at least 3-5 cell layers develop as lateral roots”
✓ located verbatim in the source · abstract, characters 424–585

Title

Formation of lateral root meristems is a two-stage process

Marta J. Laskowski; Mary E. Williams; H. Chad Nusbaum; et al. Development 1995. doi:10.1242/dev.121.10.3303

Other claims from this paper (3)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Small-seed-class mutants developed adventitious roots and completed their life cycle.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Material: mutant seedlingse0
Outcome: develop adventitious roots to complete their life cyclee0

Verbatim

e0
“In the smaller seed class, mutant seedlings failed to develop the primary root, possibly as a result of an earlier defect in the division of the hypophysis cell during embryo development, but they had the capacity to develop adventitious roots to complete their life cycle.”
✓ located verbatim in the source · abstract, characters 536–809

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 0–20

Title

Arabidopsis thaliana mitogen-activated protein kinase 6 is involved in seed formation and modulation of primary and lateral root development

J. S. López-Bucio; J. G. Dubrovsky; J. Raya-González; et al. Journal of Experimental Botany 2013. doi:10.1093/jxb/ert368

Other claims from this paper (14)

Observation The mpk6 mutation altered embryo development and produced three seed phenotypes.
Association Post-germination seed phenotypes correlated with root architecture changes.
Observation Seedlings in the smaller seed class failed to develop a primary root.
Mechanism An earlier hypophysis cell-division defect may explain the absent primary root.
Observation MPK6 loss of function did not visibly alter seed morphology in the larger class.
Observation Embryos in the larger class were bigger than wild type.
Observation Mature seeds in the larger class were bigger than wild type.
Observation Seedlings from larger seeds had longer primary roots than wild type.
Observation Seedlings from larger seeds had significantly increased lateral root initiation.
Observation Seedlings from larger seeds had more root hairs.
Observation Seedlings from larger seeds had longer root hairs.
Mechanism Enhanced cell production contributed to the increase in primary root growth.
Mechanism Cell elongation contributed to the increase in primary root growth.
Mechanism MPK6 participates in embryo development and represses primary and lateral root development.

Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

An earlier hypophysis cell-division defect may explain the absent primary root.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Outcome: failed to develop the primary roote0
Qualifier: earlier defect in the division of the hypophysis cell during embryo developmente0

Verbatim

e0
“In the smaller seed class, mutant seedlings failed to develop the primary root, possibly as a result of an earlier defect in the division of the hypophysis cell during embryo development, but they had the capacity to develop adventitious roots to complete their life cycle.”
✓ located verbatim in the source · abstract, characters 536–809

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 0–20

Title

Arabidopsis thaliana mitogen-activated protein kinase 6 is involved in seed formation and modulation of primary and lateral root development

J. S. López-Bucio; J. G. Dubrovsky; J. Raya-González; et al. Journal of Experimental Botany 2013. doi:10.1093/jxb/ert368

Other claims from this paper (14)

Observation The mpk6 mutation altered embryo development and produced three seed phenotypes.
Association Post-germination seed phenotypes correlated with root architecture changes.
Observation Seedlings in the smaller seed class failed to develop a primary root.
Observation Small-seed-class mutants developed adventitious roots and completed their life cycle.
Observation MPK6 loss of function did not visibly alter seed morphology in the larger class.
Observation Embryos in the larger class were bigger than wild type.
Observation Mature seeds in the larger class were bigger than wild type.
Observation Seedlings from larger seeds had longer primary roots than wild type.
Observation Seedlings from larger seeds had significantly increased lateral root initiation.
Observation Seedlings from larger seeds had more root hairs.
Observation Seedlings from larger seeds had longer root hairs.
Mechanism Enhanced cell production contributed to the increase in primary root growth.
Mechanism Cell elongation contributed to the increase in primary root growth.
Mechanism MPK6 participates in embryo development and represses primary and lateral root development.

“Lateral roots failed to develop”

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