Pteridaceae 4,828 claims

family · order Polypodiales · 281 taxa · NCBI Taxonomy ↗

Showing the 50 largest of 281 entries — type to find more.

Pteris vittataChinese brake · also Chinese brake fern · also P.vittata812 claims · 172 papers Adiantum capillus-venerismaidenhair fern · also Adiantum capillus‐veneris · also Adiantum capillus‐veneris L551 claims · 135 papers Ceratopteris richardii382 claims · 70 papers Adiantum209 claims · 62 papers Ceratopteris thalictroidesalso C.thalictroides199 claims · 40 papers Pteris multifidaalso P.multifida Poir149 claims · 39 papers Acrostichum aureumcoast leather fern135 claims · 30 papers Pteris creticaalso P. cretica var. nervosa · also P.cretica var.nervosa128 claims · 26 papers Ceratopteris126 claims · 39 papers Pteris106 claims · 40 papers Adiantum reniformealso A. reniforme var. sinense · also A. reniforme var. reniforme101 claims · 15 papers Cheilantheslip ferns88 claims · 17 papers Adiantum flabellulatumalso A.flabellulatum79 claims · 11 papers Pteris ensiformissword brake · also P.ensiformis f.var.victoriae65 claims · 19 papers Pteridaceae58 claims · 44 papers Pityrogramma calomelanos57 claims · 20 papers Adiantum pedatum55 claims · 20 papers Adiantum raddianumdelta maidenhair fern · also Adiantum cuneatum · also A. cuneatum51 claims · 14 papers Adiantum caudatumalso A.caudatum L49 claims · 17 papers Vittaria graminifolia48 claims · 8 papers Actiniopteris radiata46 claims · 7 papers Notholaenacloak ferns45 claims · 11 papers Hemionitis arifolia41 claims · 10 papers Pteris faurieialso P. fauriei group40 claims · 5 papers Ceratopteris pteridoides33 claims · 6 papers Hemionitis tenuifoliaalso Cheilanthes tenuifolia · also C. tenuifolia32 claims · 7 papers Adiantum latifolium31 claims · 12 papers Adiantum malesianum27 claims · 7 papers Notholaena standleyi27 claims · 4 papers Pteris longifolia25 claims · 3 papers Pteris ryukyuensis25 claims · 5 papers Anogramma leptophylla24 claims · 9 papers Pellaeacliff brakes23 claims · 7 papers Adiantum nelumboides22 claims · 3 papers Acrostichum20 claims · 9 papers Adiantum aleuticumalso Adiantum pedatum var. aleuticum18 claims · 5 papers Adiantum venustum18 claims · 4 papers Cheilanthes argenteasilver cloak fern · also Aleuritopteris argentea var.argentea · also Aleuritopteris argentea18 claims · 9 papers Aleuritopteris chusanaalso Cheilosoria chusana16 claims · 1 paper Cheilanthes albomarginata16 claims · 2 papers Pellaea rotundifoliabutton fern15 claims · 2 papers Pteris deflexa15 claims · 2 papers Pteris platyzomopsisalso Platyzoma microphyllum15 claims · 3 papers Aleuritopteris grevilleoidesalso Sinopteris grevilleoides14 claims · 2 papers Coniogramme intermedia14 claims · 3 papers Adiantum incisum13 claims · 7 papers Adiantum peruvianumalso A. peruvianum Kl13 claims · 4 papers Adiantum trapeziforme13 claims · 3 papers Hemionitis atropurpureaalso P. atropurpurea · also Pellaea atropurpurea13 claims · 6 papers Onychium siliculosum13 claims · 2 papers

4,828 claims

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.

Taxon: Pteris vittataPteris vittatat0
Treatment: 3.0 mM NO 3 ⁻ or NH 4 +e1
Outcome: plant biomasse2
Direction: lowerinferrede2
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“3.0 mM NO 3 ⁻ or NH 4 + by growing P. vittata”
✓ located verbatim in the source · abstract, characters 362–407

e2
“Though 0.2X HNS control produced greater plant biomass”
✓ located verbatim in the source · abstract, characters 643–697

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.

Taxon: Pteris vittataPteris vittatat0
Treatment: NO 3 ⁻ and NH 4 + treatmentse0
Outcome: frond Ase0
Direction: increasede0
Value: 89–113e0
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“Though 0.2X HNS control produced greater plant biomass, NO 3 ⁻ and NH 4 + treatments increased frond As and P contents by 89–113 and 39–76%”
✓ located verbatim in the source · abstract, characters 643–782

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.

Taxon: Pteris vittataPteris vittatat0
Treatment: NO 3 ⁻ and NH 4 + treatmentse0
Outcome: P contentse0
Direction: increasede0
Value: 39–76%e0
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“Though 0.2X HNS control produced greater plant biomass, NO 3 ⁻ and NH 4 + treatments increased frond As and P contents by 89–113 and 39–76%”
✓ located verbatim in the source · abstract, characters 643–782

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NO3- enhanced N assimilation via nitrate reductase by 61-157%.

Taxon: Pteris vittataPteris vittatat0
Treatment: NO 3 ⁻e1
Gene: nitrate reductasee1
Outcome: nitrate reductasee1
Direction: enhancede1
Value: 61–157%e1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“NO 3 ⁻ enhanced N assimilation via nitrate reductase, glutamine synthetase, and free amino acids by 61–157%, 24–65%, and 1.6–5.7 fold, the corresponding increases for NH 4 + treatment were 28–125%, 23%, and 2.8-fold”
✓ located verbatim in the source · abstract, characters 790–1005

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NO3- enhanced glutamine synthetase by 24-65%.

Taxon: Pteris vittataPteris vittatat0
Treatment: NO 3 ⁻e1
Gene: glutamine synthetasee1
Outcome: glutamine synthetasee1
Direction: enhancede1
Value: 24–65%e1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“NO 3 ⁻ enhanced N assimilation via nitrate reductase, glutamine synthetase, and free amino acids by 61–157%, 24–65%, and 1.6–5.7 fold, the corresponding increases for NH 4 + treatment were 28–125%, 23%, and 2.8-fold”
✓ located verbatim in the source · abstract, characters 790–1005

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NO3- increased free amino acids by 1.6-5.7 fold.

Taxon: Pteris vittataPteris vittatat0
Treatment: NO 3 ⁻e1
Outcome: free amino acidse1
Direction: enhancede1
Value: 1.6–5.7 folde1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“NO 3 ⁻ enhanced N assimilation via nitrate reductase, glutamine synthetase, and free amino acids by 61–157%, 24–65%, and 1.6–5.7 fold, the corresponding increases for NH 4 + treatment were 28–125%, 23%, and 2.8-fold”
✓ located verbatim in the source · abstract, characters 790–1005

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NH4+ treatment increased nitrate reductase by 28-125%.

Taxon: Pteris vittataPteris vittatat0
Treatment: NH 4 + treatmente1
Gene: nitrate reductasee1
Outcome: nitrate reductasee1
Direction: increasese1
Value: 28–125%e1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“NO 3 ⁻ enhanced N assimilation via nitrate reductase, glutamine synthetase, and free amino acids by 61–157%, 24–65%, and 1.6–5.7 fold, the corresponding increases for NH 4 + treatment were 28–125%, 23%, and 2.8-fold”
✓ located verbatim in the source · abstract, characters 790–1005

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NH4+ treatment increased glutamine synthetase by 23%.

Taxon: Pteris vittataPteris vittatat0
Treatment: NH 4 + treatmente1
Gene: glutamine synthetasee1
Outcome: glutamine synthetasee1
Direction: increasese1
Value: 23%e1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“NO 3 ⁻ enhanced N assimilation via nitrate reductase, glutamine synthetase, and free amino acids by 61–157%, 24–65%, and 1.6–5.7 fold, the corresponding increases for NH 4 + treatment were 28–125%, 23%, and 2.8-fold”
✓ located verbatim in the source · abstract, characters 790–1005

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NH4+ treatment increased free amino acids by 2.8-fold.

Taxon: Pteris vittataPteris vittatat0
Treatment: NH 4 + treatmente1
Outcome: free amino acidse1
Direction: increasese1
Value: 2.8-folde1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“NO 3 ⁻ enhanced N assimilation via nitrate reductase, glutamine synthetase, and free amino acids by 61–157%, 24–65%, and 1.6–5.7 fold, the corresponding increases for NH 4 + treatment were 28–125%, 23%, and 2.8-fold”
✓ located verbatim in the source · abstract, characters 790–1005

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Both NH4+ and NO3- promoted greater As/P uptake and translocation in P. vittata.

Taxon: Pteris vittataPteris vittatat0
Treatment: NH 4 + and NO 3 ⁻e1
Outcome: As/P uptake and translocatione1
Direction: greatere1
Comparator: 0.2X HNS controle0

Verbatim

t0
“Pteris vittata”
✓ located verbatim in the source · title, characters 56–70

e0
“0.2X HNS control”
✓ located verbatim in the source · abstract, characters 650–666

e1
“both NH 4 + and NO 3 ⁻ promoted greater As/P uptake and translocation”
✓ located verbatim in the source · abstract, characters 1016–1085

Title

Nitrate boosts arsenic accumulation in hyperaccumulator Pteris vittata by coupling nitrogen assimilation with arsenic detoxification

Qishang Zhou; Runmin Jin; Hao Zhang; et al. Journal of Hazardous Materials 2026. doi:10.1016/j.jhazmat.2026.142594

Other claims from this paper (14)

Intervention effect Plant biomass was greater in the 0.2X HNS control than in P. vittata treated with 3.0 mM NO3- or NH4+.
Intervention effect NO3- and NH4+ treatments increased frond As content by 89-113% relative to the 0.2X HNS control.
Intervention effect NO3- and NH4+ treatments increased frond P content by 39-76% relative to the 0.2X HNS control.
Intervention effect NO3- enhanced N assimilation via nitrate reductase by 61-157%.
Intervention effect NO3- enhanced glutamine synthetase by 24-65%.
Intervention effect NO3- increased free amino acids by 1.6-5.7 fold.
Intervention effect NH4+ treatment increased nitrate reductase by 28-125%.
Intervention effect NH4+ treatment increased glutamine synthetase by 23%.
Intervention effect NH4+ treatment increased free amino acids by 2.8-fold.
Intervention effect NH4+ and NO3- treatments were associated with 1.3-2.4 fold upregulation of P-transporters PvPht1;2/1;4 and the AsIII-antiporter PvACR3;1.
Intervention effect NO3- showed greater arsenate reduction and detoxification via 1.4-2.1 fold upregulation of AsV-reductase PvHAC1 and AsIII-antiporters PvACR3/3;2.
Intervention effect NO3- is more effective than NH4+ in enhancing As accumulation in P. vittata.
Mechanism The greater As accumulation with nitrate is related to improved N assimilation and As metabolism.
Recommendation The authors suggest nitrate application could improve phytoremediation of As-contaminated sites using P. vittata.