Intervention effectmodel-written summary

Lack of calcium significantly decreased root activity under NaCl stress.

A claim from Effects of Calcium on Root Activity and the Content of Osmotic Adjustable Organic Substances of Maize Seedlings Under NaCl Stress · 2008

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Lack of calcium significantly decreased root activity under NaCl stress.

Taxon
MaizeZea mayst0
Treatment
lack of Ca2+e0
Outcome
root activitye0
Direction
decreasede0
Qualifier
Under NaCl Stresst0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The results showed that the root activity decreased significantly while there was a lack of Ca2+”

✓ located verbatim in the source · abstract, characters 175–271
t0

“Maize Seedlings Under NaCl Stress”

✓ located verbatim in the source · title, characters 96–129

Title

Effects of Calcium on Root Activity and the Content of Osmotic Adjustable Organic Substances of Maize Seedlings Under NaCl Stress

Yufeng Wang; Qingxiang Wang; Shang Li-wei Yumi kexue 2008

Other claims from this paper (10)

Record rev-e9845d1aed7ffb2cd87f1e3f85729964c4ac4bbfdf0b10b45e2862173b9ae601 · schema claims-v0.9 · position 1 in the model’s answer

calcium(2+) · growth · Zea mays (maize)Positive and negative results

17 papers: 14 positive, 3 negative or no effect

13 papers in the same direction as this claim · 2 in the opposite direction · 1 reporting no difference from an alternative

This claim is about lacking the nutrient, so it counts the other way round here.

  1. negative
    Without potassium, 0.1 mM calcium significantly inhibited endogenous and IAA-induced growth.

    Effect of K+and Ca2+on the indole-3-acetic acid- and fusicoccin-induced growth and membrane potential in maize coleoptile cells · 2015 · compared with absence of K(+)

    Opposite direction

  2. no effect
    Exogenous calcium did not enhance coleoptile growth in the four maize genotypes.

    AUXIN BINDING PROTEIN 4 is involved in the Ca2+/auxin-regulated expression ofZCAX3gene in maize (Zea mays) · 2014

    Opposite direction

  3. no effect
    Extra calcium or potassium did not clearly improve growth under NaCl.

    Effect of NaCI and supplemental calcium on growth parameters and nitrate reductase activity in maize · 2011 · compared with nutrient solution containing NaCl

    No difference from an alternative

  4. positive
    Additional calcium helped overcome low pH limitations on proton release and root growth.

    Effect of Low Root Medium pH on Net Proton Release, Root Respiration, and Root Growth of Corn (Zea mays L.) and Broad Bean (Vicia faba L.) · 1992

    Same direction

  5. positive
    Foliar calcium improved maize plant growth under drought.

    Foliar calcium spray confers drought stress tolerance in maize via modulation of plant growth, water relations, proline content and hydrogen peroxide activity · 2017

    Same direction

  6. positive
    Supplemental calcium improved maize relative growth rate by maintaining leaf area ratio near control values.

    Leaf Expansion Limits Dry Matter Accumulation of Salt-Stressed Maize · 1994 · compared with control values

    Same direction

  7. positive
    Fastest growth and maximum curvature of corn roots occurred with about 0.2 mol m −3 Ca 2+.

    Growth and gravitropism of corn roots in solution · 1992

    Same direction

  8. positive
    Calcium increased maize germination rate, radicle and plumule length, and fresh and dry mass under cadmium exposure.

    Alleviation of cadmium toxicity on maize seedlings by calcium · 1995

    Same direction

8 papers more in this group

See all 17 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.