Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaf characters changed gradually from node to node.

Taxon: Nicotiana rusticaNicotiana rusticat0
Organ / stage: leaf characterse0
Outcome: gradual differentiatione0

Verbatim

e0
“The leaf characters show some change from node to node, i.e. manifesting a gradual differentiation”
✓ located verbatim in the source · abstract, characters 572–670

t0
“Nicotiana rustica”
✓ located verbatim in the source · title, characters 52–69

Title

Differentiation and Stability in the Development of Nicotiana rustica

G. J. PAXMAN Annals of Botany 1956. doi:10.1093/oxfordjournals.aob.a083526

Other claims from this paper (3)

Observation Leaf characters showed random fluctuations interpreted as instability.
Observation Differentiation rate varied among genotypes and showed genetic control.
Observation Stability varied among genotypes and showed genetic control.

Observationobservedoriginal resultmeasured

Claim · model-written summary

At uppermost leaf emergence, crown roots developed at node n-4.

Taxon: rice plantOryza sativat0
Organ / stage: crown roote0
Outcome: crown root development was observed on the (n-4)-th nodee0

Verbatim

e0
“at the stage of uppermost leaf emergence, crown root development was observed on the (n-4)-th node.”
✓ located verbatim in the source · abstract, characters 685–784

t0
“Rice Plant”
✓ located verbatim in the source · title, characters 45–55

Title

Some Observations on the Root Development in Rice Plant with Respect to Its Concurrency with Leaf Emergence and Internode Elongation

Yoshiyuki KOMATSU Japanese Journal of Crop Science 1959. doi:10.1626/jcs.28.20

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

First true leaf lateral veins connect with the stele at that node.

Taxon: ZOSTERA MARINA L.t0
Outcome: lateral veins of the first true leaf differentiate in connection with the stele at that nodee0

Verbatim

t0
“ZOSTERA MARINA L.”
✓ located verbatim in the source · title, characters 30–47

e0
“The pair of lateral veins of the first true leaf differentiate in connection with the stele at that node; the lateral bundles from each later-formed leaf pass through one internode as cortical bundles and unite with the stele in the node below.”
✓ located verbatim in the source · abstract, characters 1389–1633

Title

STUDIES OF THE DEVELOPMENT OF ZOSTERA MARINA L.: II. GERMINATION AND SEEDLING DEVELOPMENT

A. R. A. Taylor Canadian Journal of Botany 1957. doi:10.1139/b57-058

Other claims from this paper (15)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Crown roots emerged predominantly from node n-3 at N-th leaf emergence.

Taxon: rice plantOryza sativat0
Organ / stage: crown roote0
Outcome: crown root emergence was prevailing on the (n-3)-th nodee0

Verbatim

e0
“crown root emergence was prevailing on the (n-3)-th node.”
✓ located verbatim in the source · abstract, characters 479–536

t0
“Rice Plant”
✓ located verbatim in the source · title, characters 45–55

Title

Some Observations on the Root Development in Rice Plant with Respect to Its Concurrency with Leaf Emergence and Internode Elongation

Yoshiyuki KOMATSU Japanese Journal of Crop Science 1959. doi:10.1626/jcs.28.20

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Later leaf lateral bundles traverse one internode and join the stele below.

Taxon: ZOSTERA MARINA L.t0
Outcome: lateral bundles from each later-formed leaf pass through one internode as cortical bundles and unite with the stele in the node belowe0

Verbatim

t0
“ZOSTERA MARINA L.”
✓ located verbatim in the source · title, characters 30–47

e0
“The pair of lateral veins of the first true leaf differentiate in connection with the stele at that node; the lateral bundles from each later-formed leaf pass through one internode as cortical bundles and unite with the stele in the node below.”
✓ located verbatim in the source · abstract, characters 1389–1633

Title

STUDIES OF THE DEVELOPMENT OF ZOSTERA MARINA L.: II. GERMINATION AND SEEDLING DEVELOPMENT

A. R. A. Taylor Canadian Journal of Botany 1957. doi:10.1139/b57-058

Other claims from this paper (15)

Observation Seeds are shed in mid to late summer and germinate the next spring.
Observation Some seeds germinate before winter in nature and can germinate in the laboratory during autumn and winter.
Observation Cotyledon and hypocotyl cell elongation pushes the embryo out of the seed coat.
Observation Cell increase does not drive elongation of cotyledon or hypocotyl.
Observation Leaves emerge through a cotyledonary sheath opening.
Observation Hairs develop on the basal swollen hypocotyl.
Observation Two adventitious roots grow from the cotyledonary node, develop hairs, and anchor the seedling.
Observation Hypocotyl and cotyledon stelar tissues differentiate at germination.
Observation Thickened tracheary elements do not differentiate in the hypocotyl or cotyledon.
Observation Hypocotyl phloem differentiates around xylem parenchyma and abuts endodermis with Casparian strips.
Observation Cotyledonary xylem parenchyma differentiates adaxially against phloem.
Observation Leaf primordia procambium and vascular tissues differentiate as leaves expand.
Observation Stem-node vascularization includes strands to roots and leaves.
Observation All internodes but the first have a pair of cortical bundles.
Observation First true leaf lateral veins connect with the stele at that node.

Intervention effectobservedreview summarypositivebasis n/a

Claim · model-written summary

GA increases internode extension.

Taxon: Plantt0
Treatment: GAe0
Outcome: inter‐node extensione0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“The most characteristic effects of GA on shoot growth are increased inter‐node extension, increased leaf‐growth and enhanced apical dominance”
✓ located verbatim in the source · abstract, characters 706–847

t0
“Effects of Gibberellins on Plant Growth and Development”
✓ located verbatim in the source · title, characters 0–55

Title

Effects of Gibberellins on Plant Growth and Development

P. W. BRIAN Biological reviews/Biological reviews of the Cambridge Philosophical Society 1959. doi:10.1111/j.1469-185x.1959.tb01301.x

Other claims from this paper (17)

Intervention effect GA increases leaf growth.
Intervention effect GA enhances apical dominance.
Intervention effect GA does not stimulate intact-root growth in some species and circumstances.
Intervention effect Some root sections respond to GA with increased growth.
Mechanism GA increases plant dry weight, mainly through increased carbon fixation.
Intervention effect GA can restore dwarf mutant growth to a tall-like form.
Intervention effect GA often leaves genetically tall plants unaffected.
Intervention effect GA breaks seed, potato-tuber and bud dormancy.
Intervention effect GA induces flowering in long-short-day plants held in short days.
Intervention effect GA inhibits flowering in short-day plants under inductive short days.
Intervention effect GA has little effect on extension in excised tissue sections compared with auxins.
Intervention effect GA induces marked shoot-cell extension in some intact plants.
Intervention effect GA does not inhibit root growth as auxins do.
Mechanism GA may influence cell extension only when auxin is present.
Mechanism The authors propose that GA neutralizes an inhibitory growth system.
Observation GA-like activity was detected in plant tissues and gibberellin was isolated from Phaseolus seeds.
Mechanism The proposed scheme explains light and vernalization responses through GA-like hormone levels.

Observationobservedoriginal resultmeasured

Claim · model-written summary

In Spanish type varieties the first flower bud primordia formed on the first node of the primary lateral stem and differentiated when the second leaf appeared on the main stem.

Taxon: peanutArachis hypogaeae1
Material: Spanish type varietiese2
Organ / stage: first node of the primary lateral steme2
Outcome: first flower bud primordiae2

Verbatim

e1
“Studies on flower bud differentiation and de-velopment of three Spanish types and two Virginia types of peanut varieties”
✓ located verbatim in the source · abstract, characters 3–123

e2
“In the Spanish type varieties, the first flower bud primordia was formed on the first node of the primary lateral stem, and it differentiated when the second leaf appeared on the main stem”
✓ located verbatim in the source · abstract, characters 192–380

Title

Flower bud differentiation and development of peanuts

T. KATO; M. KUBO Journal of the Japanese Society for Horticultural Science 1955. doi:10.2503/jjshs.24.29

Other claims from this paper (13)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Secondary xylem cross-sectional area per root increased with ascending root node until conversion stage.

Taxon: rice plantOryza sativat0
Organ / stage: root emerging node-locuse0
Outcome: total area of the cross section of secondary xylems per single roote0
Direction: largere0

Verbatim

e0
“The total area of the cross section of secondary xylems per single root measured larger as the root emerging node-locus ascended higher, up to the conversion stage of leaf emergence”
✓ located verbatim in the source · abstract, characters 788–969

t0
“Rice Plant”
✓ located verbatim in the source · title, characters 45–55

Title

Some Observations on the Root Development in Rice Plant with Respect to Its Concurrency with Leaf Emergence and Internode Elongation

Yoshiyuki KOMATSU Japanese Journal of Crop Science 1959. doi:10.1626/jcs.28.20

Other claims from this paper (6)

Observation At N-th leaf emergence, internodes n-2 to n-3 reached full length.
Observation Crown roots emerged predominantly from node n-3 at N-th leaf emergence.
Observation Root emergence locus ascent and root number increase slowed at leaf emergence conversion.
Observation At uppermost leaf emergence, crown roots developed at node n-4.
Observation Secondary xylem cross-sectional area diminished after conversion stage.
Observation Secondary thickening of root metaxylem was absent at every locus.

Intervention effectobservedreview summarypositivebasis n/a

Claim · model-written summary

GA increases leaf growth.

Taxon: Plantt0
Treatment: GAe0
Outcome: leaf‐growthe0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“The most characteristic effects of GA on shoot growth are increased inter‐node extension, increased leaf‐growth and enhanced apical dominance”
✓ located verbatim in the source · abstract, characters 706–847

t0
“Effects of Gibberellins on Plant Growth and Development”
✓ located verbatim in the source · title, characters 0–55

Title

Effects of Gibberellins on Plant Growth and Development

P. W. BRIAN Biological reviews/Biological reviews of the Cambridge Philosophical Society 1959. doi:10.1111/j.1469-185x.1959.tb01301.x

Other claims from this paper (17)

Intervention effect GA increases internode extension.
Intervention effect GA enhances apical dominance.
Intervention effect GA does not stimulate intact-root growth in some species and circumstances.
Intervention effect Some root sections respond to GA with increased growth.
Mechanism GA increases plant dry weight, mainly through increased carbon fixation.
Intervention effect GA can restore dwarf mutant growth to a tall-like form.
Intervention effect GA often leaves genetically tall plants unaffected.
Intervention effect GA breaks seed, potato-tuber and bud dormancy.
Intervention effect GA induces flowering in long-short-day plants held in short days.
Intervention effect GA inhibits flowering in short-day plants under inductive short days.
Intervention effect GA has little effect on extension in excised tissue sections compared with auxins.
Intervention effect GA induces marked shoot-cell extension in some intact plants.
Intervention effect GA does not inhibit root growth as auxins do.
Mechanism GA may influence cell extension only when auxin is present.
Mechanism The authors propose that GA neutralizes an inhibitory growth system.
Observation GA-like activity was detected in plant tissues and gibberellin was isolated from Phaseolus seeds.
Mechanism The proposed scheme explains light and vernalization responses through GA-like hormone levels.

Intervention effectobservedreview summarypositivebasis n/a

Claim · model-written summary

GA enhances apical dominance.

Taxon: Plantt0
Treatment: GAe0
Outcome: apical dominancee0
Direction: enhancede0

Not reportedComparator

Verbatim

e0
“The most characteristic effects of GA on shoot growth are increased inter‐node extension, increased leaf‐growth and enhanced apical dominance”
✓ located verbatim in the source · abstract, characters 706–847

t0
“Effects of Gibberellins on Plant Growth and Development”
✓ located verbatim in the source · title, characters 0–55

Title

Effects of Gibberellins on Plant Growth and Development

P. W. BRIAN Biological reviews/Biological reviews of the Cambridge Philosophical Society 1959. doi:10.1111/j.1469-185x.1959.tb01301.x

Other claims from this paper (17)

Intervention effect GA increases internode extension.
Intervention effect GA increases leaf growth.
Intervention effect GA does not stimulate intact-root growth in some species and circumstances.
Intervention effect Some root sections respond to GA with increased growth.
Mechanism GA increases plant dry weight, mainly through increased carbon fixation.
Intervention effect GA can restore dwarf mutant growth to a tall-like form.
Intervention effect GA often leaves genetically tall plants unaffected.
Intervention effect GA breaks seed, potato-tuber and bud dormancy.
Intervention effect GA induces flowering in long-short-day plants held in short days.
Intervention effect GA inhibits flowering in short-day plants under inductive short days.
Intervention effect GA has little effect on extension in excised tissue sections compared with auxins.
Intervention effect GA induces marked shoot-cell extension in some intact plants.
Intervention effect GA does not inhibit root growth as auxins do.
Mechanism GA may influence cell extension only when auxin is present.
Mechanism The authors propose that GA neutralizes an inhibitory growth system.
Observation GA-like activity was detected in plant tissues and gibberellin was isolated from Phaseolus seeds.
Mechanism The proposed scheme explains light and vernalization responses through GA-like hormone levels.

“leaf and node development”

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