Intervention effectmodel-written summary

Supplemented B5 produced more bean callus than the specified half-strength MS medium.

A claim from Production of transgenic bean callus via genetic transformation by DNA-coated tungsten particles · 2003

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Supplemented B5 produced more bean callus than the specified half-strength MS medium.

Taxon
beant0
Treatment
B5 medium supplemented with 1mg/1 KIN and 2mg/1 2,4-De0
Outcome
calluse0
Direction
much moree0
Comparator
half strength MS medium supplemented with 0.5 or 0.75mg/1 BA and 0.1 mg/1 NAAe0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

Verbatim

e0

“The B5 medium supplemented with 1mg/1 KIN and 2mg/1 2,4-D induced much more callus than half strength MS medium supplemented with 0.5 or 0.75mg/1 BA and 0.1 mg/1 NAA.”

✓ located verbatim in the source · abstract, characters 237–403
t0

“bean”

✓ located verbatim in the source · title, characters 25–29

Title

Production of transgenic bean callus via genetic transformation by DNA-coated tungsten particles

E. Eissa Ahmed International Journal of Horticultural Science 2003. doi:10.31421/ijhs/9/3-4/404

Other claims from this paper (6)

Record rev-e75dbe49bdcdd34aadba8f3df2ab169e762f1f673e40fd7903fcac2cab3ce6f4 · schema claims-v0.9 · position 3 in the model’s answer

2,4-D · growth · Phaseolus vulgaris (common bean)Results differ

18 papers: 9 positive, 9 negative or no effect

8 papers in the same direction as this claim · 9 in the opposite direction

  1. negative
    Only 2,4-D changed chloroplast morphology and internal structure after 24 h, and only in light.

    The Effect of 2,4-Dichlorophenoxyacetic Acid and Related Compounds on the Fine Structure of the Primary Leaves ofPhaseolus vulgaris · 1970 · compared with 2-chlorophenoxyacetic acid (2-CPA), 4-chlorophenoxyacetic acid (4-CPA), 2,6-dichlorophenoxyacetic acid (2,6-D)

    Opposite direction

  2. negative
    Fresh and dry plant weight was generally lower when 2,4-D was applied late in the light span.

    Circadian periodic response of Phaseolus vulgaris l. to 2,4-dichlorophenoxyacetic acid. · 1977

    Opposite direction

  3. negative
    Substituting NAA for 2,4-D resulted in poor callus growth and no root formation in bean.

    Root formation and attempts to establish morphogenesis in callus tissues of beans (Phaseolus vulgaris L.) · 1990 · compared with 2,4-D

    Opposite direction

  4. negative
    2,4-D reduced bean seed germination at all concentrations.

    Effect of 2,4-D sub-dose on the initial development of common bean crop · 2021

    Opposite direction

  5. negative
    The 528 g·ai·ha-1 preplant rate reduced bean dry weight by up to 23%.

    Responses of Dry Bean to 2,4-D Ester Applied Preplant and Preemergence · 2019

    Opposite direction

  6. no effect
    Preplant pyraflufen-ethyl, 2,4-D ester or their combination had no adverse effect on dry bean stand, aboveground dry biomass or height (apart from the 2X-rate exceptions).

    Tolerance of Dry Beans to Pyraflufen-Ethyl/2,4-D Ester · 2022

    Opposite direction

  7. no effect
    2,4-D concentrations did not significantly differ in numbers of explants forming callus.

    Influence of growth regulators in the callus formation of Phaseolus vulgaris L cv. CIAP 7247 · 2006 · compared with studied concentrations

    Opposite direction

  8. negative
    Tiafenacil plus 2,4-D ester reduced bean biomass per plant by 18% relative to untreated control.

    Tolerance of Azuki and White Bean to Tiafenacil Tank Mixes · 2025 · compared with non-treated control

    Opposite direction

9 papers more in this group

See all 18 papers →

in vitro · growth · Phaseolus vulgaris (common bean)Positive and negative results

18 papers: 11 positive, 7 negative or no effect

10 papers in the same direction as this claim · 7 in the opposite direction

  1. negative
    Medium phosphorus availability reduced common bean plant growth by 20% relative to high phosphorus.

    The effect of phosphorus availability on the carbon economy of contrasting common bean ( Phaseolus vulgaris L.) genotypes · 2001 · compared with high phosphorus treatment

    Opposite direction

  2. negative
    Medium phosphorus availability reduced common bean plant growth by 20% compared with the high phosphorus treatment.

    The effect of phosphorus availability on the carbon economy of contrasting common bean (Phaseolus vulgaris L.) genotypes · 2001 · compared with high phosphorus treatment

    Opposite direction

  3. negative
    Field bean radicle growth ceased after four days in boron-free medium.

    Some Effects of Boron on Root Growth · 1960

    Opposite direction

  4. negative
    Iron-free media caused large reductions in bean root size and dye reduction capacity.

    Foliar Iron Spray Potentiates Growth of Seedlings on Iron-free Media · 1975

    Opposite direction

  5. no effect
    Cryopreserved and control common bean seeds both showed 100% germination at 10 days after sowing.

    Exposure of Common Bean Seeds to Liquid Nitrogen Modifies Mineral Composition of Young Plantlet Leaves · 2016 · compared with control

    Opposite direction

  6. negative
    Increasing only subsoil density from medium to high reduced shoot dry matter by 8 to 36%.

    Effect of Homogeneous and Heterogeneous Soil Compaction on Shoot and Root Growth of Field Bean and Soybean · 1986 · compared with medium

    Opposite direction

  7. negative
    Medium X-ray doses temporarily inhibited bean root growth.

    Variations in the Growth of Irradiated Bean Roots · 1929

    Opposite direction

  8. positive
    Increasing BAP in the post-treatment medium significantly increased shoot regeneration frequency, shoot counts, and shoot length.

    Innovation in the Breeding of Common Bean Through a Combined Approach of in vitro Regeneration and Machine Learning Algorithms · 2022

    Same direction

9 papers more in this group

See all 18 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.