Paper · 2019 · Australian Journal of Crop Science

Pepper plants response to metal nanoparticles and chitosan in nutrient media

Zhao Hui; Liu Min; Chen Yu; et al.

4
claims
8
verbatim quotes
9
citations
1
research areas
✓
Open access

Abstract

Neutral nanoparticles (NPs) of iron, zinc, copper or their compositions were introduced into nutrient Murashige-Skoog (MS) medium instead of traditional metal salts with/without chitosan supplements to obtain healthy and crop productive plants. Metal NPs concentrations were: Fe NPs (0.06, 0.3, 3.0); Zn NPs (0.016, 0.08, 0.4); Cu NPs (0.004, 0.0008, 0.00016) (mg L-1). Pepper (Capsicum annuum) cultivar LJ-King was grown on modified media in aseptic conditions. After 45 days, root and stem length, root activity, green mass gain and chlorophyll content in leaves were measured. Pepper plants grown on media with metal NPs showed increased root length and activity (for Fe, Zn, Cu NPs and their composition) and chlorophyll content in leaves (for NPs Fe and Cu). However, addition of Chitosan modified the effects. Monitoring of pepper grown on MS with NPs composition (Fe: Zn: Cu as 3.0:1.0:0.004 mg L-1) with electron microscope demonstrated no NPs accumulation in roots, sprouts and leaves.

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Metal NPs increased root length and root activity of pepper plants grown on media.

Taxon
Capsicum annuumCapsicum annuume0
Material
LJ-Kinge0
Organ / stage
roote1
Treatment
metal NPse1
Outcome
root length and activitye1
Direction
increasede1
Qualifier
for Fe, Zn, Cu NPs and their compositione1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Pepper (Capsicum annuum) cultivar LJ-King”

✓ located verbatim in the source · abstract, characters 370–411 · show in text ↑
e1

“Pepper plants grown on media with metal NPs showed increased root length and activity (for Fe, Zn, Cu NPs and their composition)”

✓ located verbatim in the source · abstract, characters 580–708 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPs of Fe and Cu increased chlorophyll content in leaves of pepper plants.

Taxon
Capsicum annuumCapsicum annuume0
Material
LJ-Kinge0
Organ / stage
leavese2
Treatment
NPs Fe and Cue2
Outcome
chlorophyll content in leavese2
Direction
increasede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Pepper (Capsicum annuum) cultivar LJ-King”

✓ located verbatim in the source · abstract, characters 370–411 · show in text ↑
e2

“Pepper plants grown on media with metal NPs showed increased root length and activity (for Fe, Zn, Cu NPs and their composition) and chlorophyll content in leaves (for NPs Fe and Cu)”

✓ located verbatim in the source · abstract, characters 580–762 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Addition of chitosan modified the effects of metal NPs on pepper.

Taxon
Capsicum annuumCapsicum annuume0
Treatment
Chitosane4
Outcome
effectse4

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Pepper (Capsicum annuum) cultivar LJ-King”

✓ located verbatim in the source · abstract, characters 370–411 · show in text ↑
e4

“However, addition of Chitosan modified the effects”

✓ located verbatim in the source · abstract, characters 764–814 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

No NPs accumulation was found in roots, sprouts and leaves of pepper grown with the Fe:Zn:Cu NPs composition.

Taxon
Capsicum annuumCapsicum annuume0
Organ / stage
roots, sprouts and leavese5
Treatment
NPs compositione5
Outcome
NPs accumulatione5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Pepper (Capsicum annuum) cultivar LJ-King”

✓ located verbatim in the source · abstract, characters 370–411 · show in text ↑
e5

“Monitoring of pepper grown on MS with NPs composition (Fe: Zn: Cu as 3.0:1.0:0.004 mg L-1) with electron microscope demonstrated no NPs accumulation in roots, sprouts and leaves”

✓ located verbatim in the source · abstract, characters 816–993 · show in text ↑

copper atom · physiology: pigments · Capsicum annuum (sweet pepper)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
See all 3 papers →

iron atom · physiology: pigments · Capsicum annuum (sweet pepper)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive
See all 4 papers →

nanoparticle · growth · Capsicum annuum (sweet pepper)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

13 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

nanoparticle · physiology: pigments · Capsicum annuum (sweet pepper)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 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.