Abstract
ABSTRACT Copper oxide nanoparticles (CuO NPs) show strong nano‐toxic effects on organisms. Hydrogen sulphide (H 2 S) plays a pivotal role in plant response to abiotic stress. In this study, we examine the crucial role of the cell wall as regulated by H 2 S in response to CuO NPs stress. The digestion method was employed to determine Cu content using atomic absorption spectrometry. The TraKine pro‐tubulin staining kit was used to investigate the microtubule cytoskeleton using confocal laser‐scanning microscopy. Cell wall component analysis utilized the ICS‐3000 HPLC system. Application of H 2 S reduced growth inhibition caused by CuO NPs. Furthermore, most of the CuO NPs accumulates in roots, indicating a low transfer rate, and H 2 S significantly decreased CuO NPs content in roots, leaves and stems. Subcellular distribution analysis implied most Cu accumulated in root cell walls, and that H 2 S reduced the content of Cu in root cell walls. Cortical microtubules in the plasma membrane, guide cell wall biosynthesis. H 2 S obviously alleviated microtubule cytoskeleton disorders caused by CuO NPs. In addition, the content of cellulose, hemicellulose, pectin and other monosaccharides in root cell walls was reduced by CuO NPs treatment. H 2 S enhanced the monosaccharide and polysaccharide contents compared with that after CuO NPs treatment. In conclusion, H 2 S regulates cell wall development in response to CuO NPs stress by stabilizing microtubules. H 2 S affected Cu distribution and alleviated growth inhibition of tomato seedlings. The research results provide a theoretical basis for further study of nano‐toxicity regulation in plants.
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Claims 8
Claim · model-written summary
H2S reduced growth inhibition caused by CuO nanoparticles.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- H 2 Se0
- Outcome
- growth inhibitione0
- Direction
- reducede0
- Comparator
- CuO NPse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of H 2 S reduced growth inhibition caused by CuO NPs”
t0“tomato”
Claim · model-written summary
Most CuO nanoparticles accumulated in roots.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- rootse0
- Outcome
- CuO NPs accumulates in rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most of the CuO NPs accumulates in roots, indicating a low transfer rate”
t0“tomato”
Claim · model-written summary
H2S decreased CuO nanoparticle content in roots, leaves and stems.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- H 2 Se0
- Outcome
- CuO NPs content in roots, leaves and stemse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H 2 S significantly decreased CuO NPs content in roots, leaves and stems”
t0“tomato”
Claim · model-written summary
Most Cu accumulated in root cell walls.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- root cell wallse0
- Outcome
- Cu accumulated in root cell wallse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most Cu accumulated in root cell walls”
t0“tomato”
Claim · model-written summary
H2S reduced Cu content in root cell walls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- H 2 Se0
- Outcome
- content of Cu in root cell wallse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H 2 S reduced the content of Cu in root cell walls”
t0“tomato”
Claim · model-written summary
H2S alleviated CuO nanoparticle induced microtubule cytoskeleton disorders.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- H 2 Se0
- Outcome
- microtubule cytoskeleton disorderse0
- Direction
- alleviatede0
- Comparator
- CuO NPse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H 2 S obviously alleviated microtubule cytoskeleton disorders caused by CuO NPs”
t0“tomato”
Claim · model-written summary
CuO nanoparticle treatment reduced cellulose, hemicellulose, pectin and other monosaccharides in root cell walls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- CuO NPs treatmente0
- Outcome
- content of cellulose, hemicellulose, pectin and other monosaccharides in root cell wallse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of cellulose, hemicellulose, pectin and other monosaccharides in root cell walls was reduced by CuO NPs treatment”
t0“tomato”
Claim · model-written summary
H2S enhanced root cell wall monosaccharide and polysaccharide contents compared with CuO nanoparticle treatment.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- H 2 Se0
- Outcome
- monosaccharide and polysaccharide contentse0
- Direction
- enhancede0
- Comparator
- CuO NPs treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H 2 S enhanced the monosaccharide and polysaccharide contents compared with that after CuO NPs treatment”
t0“tomato”
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See all 29 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.