Abstract
Treating plants with abiotic or biotic factors can lead to the establishment of a unique primed state of defense. Primed plants display enhanced defense reactions upon further challenge with environmental stressors. Here, we report that trivalent chromium (Cr(III)) pretreatment can alleviate hexavalent chromium (Cr(VI)) toxicity in 2-week-old wheat plants. The data indicate that Cr(III)- pretreated wheat displayed longer survival times and less heavy metal toxicity symptoms under Cr(VI) exposure than the control. To investigate the possible mechanism from an antioxidant defense perspective, we determined the H2O2 and lipid peroxide content (TBARS), the activities of antioxidant enzymes (SOD, CAT, APX and GR) and the antioxidant metabolite content (ascorbate and glutathione content, AsA/DHA and GSH/GSSG ratios) in pretreated wheat roots. The results showed that 0.5 lM Cr(III) pre- treatment can alleviate oxidative damage, such as H2O2 and TBARS accumulation, in root tissues compared to the control during the first 3 days of Cr(VI) exposure. Furthermore, we determined that this pretreatment can significantly increase the antioxidant enzyme activities and total ascorbate and glutathione contents compared to the control treatment. In addition, redox homeostasis declined slightly in pretreated wheat compared to the control in the presence of Cr(VI). We discuss a possible mechanism for Cr(III)-mediated protection of wheat.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Cr(III) pretreatment lengthened wheat survival under Cr(VI) exposure.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Cr(III)- pretreatede0
- Outcome
- survival timese0
- Direction
- longere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cr(III)- pretreated wheat displayed longer survival times and less heavy metal toxicity symptoms under Cr(VI) exposure than the control.”
Claim · model-written summary
Cr(III) pretreatment reduced wheat heavy metal toxicity symptoms under Cr(VI) exposure.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Cr(III)- pretreatede0
- Outcome
- heavy metal toxicity symptomse0
- Direction
- lesse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cr(III)- pretreated wheat displayed longer survival times and less heavy metal toxicity symptoms under Cr(VI) exposure than the control.”
Claim · model-written summary
Cr(III) pretreatment alleviated root H2O2 accumulation during the first 3 days of Cr(VI) exposure.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- root tissuese0
- Treatment
- 0.5 lM Cr(III) pre- treatmente0
- Outcome
- H2O2e0
- Direction
- alleviatee0
- Qualifier
- during the first 3 days of Cr(VI) exposuree0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.5 lM Cr(III) pre- treatment can alleviate oxidative damage, such as H2O2 and TBARS accumulation, in root tissues compared to the control during the first 3 days of Cr(VI) exposure.”
t0“wheat plants”
Claim · model-written summary
Cr(III) pretreatment alleviated root TBARS accumulation during the first 3 days of Cr(VI) exposure.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- root tissuese0
- Treatment
- 0.5 lM Cr(III) pre- treatmente0
- Outcome
- TBARS accumulatione0
- Direction
- alleviatee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.5 lM Cr(III) pre- treatment can alleviate oxidative damage, such as H2O2 and TBARS accumulation, in root tissues compared to the control during the first 3 days of Cr(VI) exposure.”
t0“wheat plants”
Claim · model-written summary
Cr(III) pretreatment significantly increased antioxidant enzyme activities.
- Taxon
- wheatTriticum aestivume1
- Treatment
- this pretreatmente0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- increasee0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this pretreatment can significantly increase the antioxidant enzyme activities and total ascorbate and glutathione contents compared to the control treatment.”
e1“pretreated wheat roots.”
Claim · model-written summary
Cr(III) pretreatment significantly increased total ascorbate content.
- Taxon
- wheatTriticum aestivume1
- Treatment
- this pretreatmente0
- Outcome
- total ascorbatee0
- Direction
- increasee0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this pretreatment can significantly increase the antioxidant enzyme activities and total ascorbate and glutathione contents compared to the control treatment.”
e1“pretreated wheat roots.”
Claim · model-written summary
Cr(III) pretreatment significantly increased total glutathione content.
- Taxon
- wheatTriticum aestivume1
- Treatment
- this pretreatmente0
- Outcome
- glutathione contentse0
- Direction
- increasee0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this pretreatment can significantly increase the antioxidant enzyme activities and total ascorbate and glutathione contents compared to the control treatment.”
e1“pretreated wheat roots.”
Claim · model-written summary
Redox homeostasis declined slightly in pretreated wheat under Cr(VI) compared with control.
- Taxon
- wheatTriticum aestivume0
- Treatment
- pretreatede0
- Outcome
- redox homeostasise0
- Direction
- declinede0
- Qualifier
- in the presence of Cr(VI)e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“redox homeostasis declined slightly in pretreated wheat compared to the control in the presence of Cr(VI).”
The same questions in other papers
chromium atom · crop injury · Triticum aestivum (wheat)Positive and negative results
1 in the opposite direction
- negative
chromium atom · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
2 in the opposite direction
- negative
- negative
chromium atom · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
3 papers more in this group
See all 7 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.