Abstract
Seed priming with engineered nanoparticles can promote seed germination. Herein, we investigated how priming seeds with antioxidant poly(acrylic acid)-coated cerium oxide nanoparticles (PNC, 0.05 mM) impacts seed germination in cotton ( Gossypium hirsutum L.). Seed priming with PNC significantly increased cotton hypocotyl elongation by 13%-37%, promoting seed germination in pot experiment. Meanwhile, the emergence rate increased by 15%-16% with 0.05 mM PNC-seed priming in the field. Transcriptome analysis identified PNC-induced differentially expressed genes (DEGs) related to the phytohormone, auxin (IAA), and brassinosteroid (BR) biosynthesis (e.g. GhTAA1, GhYUCCA, GhALDH, GhGH3, GhCYPs ) and signal transduction (e.g. GhSAUR , GhBZR1 ). Consistently, PNC priming increased the accumulation of IAA (10%-25%) and BR (86%-100%) in cotton hypocotyls. In addition, PNC enhanced the expression of the xyloglucan endotransglucosylase/hydrolase (XTHs) genes, regulated by SAUR and BZR1 through IAA and BR signaling pathway and critical for cell elongation. Also, the cell lengths of the epidermis, endodermis, xylem, and pith in cotton hypocotyl increased by 21%, 17%, 31%, and 21%, respectively upon seed priming with 0.05 mM PNC. The results provide insights into the molecular mechanisms of nanoparticles-seed priming enhancement of plant seed gemination. • Seed priming with poly(acrylic acid)-coated cerium oxide nanoparticles (PNC) significantly promotes hypocotyl elongation and seedling emergence rate in cotton. • PNC induces the elongation of cotton hypocotyl via modulating the gene expression related to homeostasis and signaling pathways of auxins and brassinosteroid and enhancing their accumulation. • PNC promotes cell elongation of cotton hypocotyl by regulating xyloglucan endotransglucosylase/hydrolase (XTH) gene expression.
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Claims 12
Claim · model-written summary
Seed priming with PNC significantly increased cotton hypocotyl elongation by 13%-37% in a pot experiment.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Seed priming with PNCe1
- Outcome
- hypocotyl elongatione1
- Direction
- increasede1
- Value
- 13%-37%e1
- Setting
- pot experimente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e1“Seed priming with PNC significantly increased cotton hypocotyl elongation by 13%-37%, promoting seed germination in pot experiment”
Claim · model-written summary
PNC seed priming increased seedling emergence rate by 15%-16% in the field.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 0.05 mM PNC-seed priminge2
- Outcome
- emergence ratee2
- Direction
- increasede2
- Value
- 15%-16%e2
- Setting
- in the fielde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e2“the emergence rate increased by 15%-16% with 0.05 mM PNC-seed priming in the field”
Claim · model-written summary
Transcriptome analysis identified PNC-induced differentially expressed genes related to auxin and brassinosteroid biosynthesis, including GhTAA1, GhYUCCA, GhALDH, GhGH3 and GhCYPs.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- PNCe3
- Gene
- GhTAA1, GhYUCCA, GhALDH, GhGH3, GhCYPse3
- Outcome
- differentially expressed genese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e3“Transcriptome analysis identified PNC-induced differentially expressed genes (DEGs) related to the phytohormone, auxin (IAA), and brassinosteroid (BR) biosynthesis (e.g. GhTAA1, GhYUCCA, GhALDH, GhGH3, GhCYPs )”
Claim · model-written summary
Transcriptome analysis identified PNC-induced differentially expressed genes in signal transduction, including GhSAUR and GhBZR1.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- PNCe3
- Gene
- GhSAUR , GhBZR1e4
- Outcome
- differentially expressed genese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e3“Transcriptome analysis identified PNC-induced differentially expressed genes (DEGs) related to the phytohormone, auxin (IAA), and brassinosteroid (BR) biosynthesis (e.g. GhTAA1, GhYUCCA, GhALDH, GhGH3, GhCYPs )”
e4“signal transduction (e.g. GhSAUR , GhBZR1 )”
Claim · model-written summary
PNC priming increased IAA accumulation in cotton hypocotyls by 10%-25%.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- hypocotylse5
- Treatment
- PNC priminge5
- Outcome
- accumulation of IAAe5
- Direction
- increasede5
- Value
- 10%-25%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e5“PNC priming increased the accumulation of IAA (10%-25%) and BR (86%-100%) in cotton hypocotyls”
Claim · model-written summary
PNC priming increased BR accumulation in cotton hypocotyls by 86%-100%.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- hypocotylse5
- Treatment
- PNC priminge5
- Compound
- BRe5
- Outcome
- accumulatione5
- Direction
- increasede5
- Value
- 86%-100%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e5“PNC priming increased the accumulation of IAA (10%-25%) and BR (86%-100%) in cotton hypocotyls”
Claim · model-written summary
PNC enhanced the expression of XTH genes in cotton.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- PNCe6
- Gene
- xyloglucan endotransglucosylase/hydrolase (XTHs) genese6
- Outcome
- expressione6
- Direction
- enhancede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e6“PNC enhanced the expression of the xyloglucan endotransglucosylase/hydrolase (XTHs) genes”
Claim · model-written summary
Cell elongation of cotton hypocotyl is critical and regulated by SAUR and BZR1 through IAA and BR signalling.
- Taxon
- cottonGossypium hirsutumt0
- Gene
- SAUR and BZR1e7
- Outcome
- cell elongatione7
- Qualifier
- through IAA and BR signaling pathwaye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e7“regulated by SAUR and BZR1 through IAA and BR signaling pathway and critical for cell elongation”
Claim · model-written summary
Seed priming with 0.05 mM PNC increased epidermal cell length in cotton hypocotyl by 21%.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- epidermise0
- Treatment
- seed priming with 0.05 mM PNCe0
- Outcome
- cell lengthse0
- Direction
- increasede0
- Value
- 21%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e0“the cell lengths of the epidermis, endodermis, xylem, and pith in cotton hypocotyl increased by 21%, 17%, 31%, and 21%, respectively upon seed priming with 0.05 mM PNC”
Claim · model-written summary
Seed priming with 0.05 mM PNC increased endodermal cell length in cotton hypocotyl by 17%.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- endodermise0
- Treatment
- seed priming with 0.05 mM PNCe0
- Outcome
- cell lengthse0
- Direction
- increasede0
- Value
- 17%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e0“the cell lengths of the epidermis, endodermis, xylem, and pith in cotton hypocotyl increased by 21%, 17%, 31%, and 21%, respectively upon seed priming with 0.05 mM PNC”
Claim · model-written summary
Seed priming with 0.05 mM PNC increased xylem cell length in cotton hypocotyl by 31%.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- xyleme0
- Treatment
- seed priming with 0.05 mM PNCe0
- Outcome
- cell lengthse0
- Direction
- increasede0
- Value
- 31%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e0“the cell lengths of the epidermis, endodermis, xylem, and pith in cotton hypocotyl increased by 21%, 17%, 31%, and 21%, respectively upon seed priming with 0.05 mM PNC”
Claim · model-written summary
Seed priming with 0.05 mM PNC increased pith cell length in cotton hypocotyl by 21%.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- pithe0
- Treatment
- seed priming with 0.05 mM PNCe0
- Outcome
- cell lengthse0
- Direction
- increasede0
- Value
- 21%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“promotes cotton (Gossypium hirsutum L.)”
e0“the cell lengths of the epidermis, endodermis, xylem, and pith in cotton hypocotyl increased by 21%, 17%, 31%, and 21%, respectively upon seed priming with 0.05 mM PNC”
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