copper atom · Physiology: oxidative · Helianthus annuus (common sunflower)

Results differ5 papers: 1 positive, 4 negative or no effect · 1 pair of papers confirmed to differ

8 claims from these papers.

Papers whose results differ, checked claim by claim 1

1 pair of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.

How these papers cite each other

None of these papers cites another one here.

Positive resultNegative result or no effect2000200220042006200820102012
  • Positive result
  • Negative result or no effect
  • Citation, pointing to the cited paper
  • Citation across the two sides
  • Larger circle: more citations overall

Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.

Papers reporting a positive result 1

  1. Effects of brassinosteroid on the induction of physiological changes in Helianthus annuus L. under copper stress · 2013

Papers reporting a negative result or no effect 4

  1. Oxidative Stress Induced by Copper in Sunflower Plants · 1999

  2. Salicylic Acid-induced Adaptive Response to Copper Stress in Sunflower (Helianthus annuus L.) · 2006

  3. Involvement of Antioxidant Defense Capacity of Rice and Sunflower in Their Response to Cu and Mn Toxicity under Different Light Intensities · 2007

  4. Localized increases of polyphenol concentration and antioxidant capacity in relation to the differential accumulations of copper and cadmium in roots and in shoots of sunflower · 2010

A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.

copper atom on Helianthus annuus (common sunflower) against other targets

copper atom · physiology: oxidative on other organisms