Portulacaria afra 214 claims

species · family Didiereaceae · green plant · NCBI Taxonomy ↗

Common name: spekboom — Also written in claims: spekboom · P. afra seedlings

8 spellings

Portulacaria afraDinkum · CC0 · Wikimedia Commons ↗

214 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

The spekboom genome is tetraploid.

Taxon: Portulacaria afraPortulacaria afrae1
Outcome: genome to be tetraploide2
Qualifier: Flow cytometry and k-mer analysise2

Verbatim

e1
“Portulacaria afra (P. afra), or Spekboom as it is locally known”
✓ located verbatim in the source · abstract, characters 0–63

e2
“Flow cytometry and k-mer analysis revealed the genome to be tetraploid and supports a haploid assembly size of ~ 0.68 Gb”
✓ located verbatim in the source · abstract, characters 759–879

Title

Long-read de novo assembly of the spekboom (Portulacaria afra) genome

Wilku B. Meyer; Helmien Barkhuizen-Roode; Larysha Rothmann; et al. Scientific Data 2025. doi:10.1038/s41597-025-06019-z

Other claims from this paper (2)

Method / resource The haploid assembly size of the spekboom genome is about 0.68 Gb.
Method / resource The assembly has 99.3% complete BUSCO genes.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The haploid assembly size of the spekboom genome is about 0.68 Gb.

Taxon: Portulacaria afraPortulacaria afrae1
Outcome: haploid assembly sizee2
Value: ~ 0.68 Gbe2

Verbatim

e1
“Portulacaria afra (P. afra), or Spekboom as it is locally known”
✓ located verbatim in the source · abstract, characters 0–63

e2
“Flow cytometry and k-mer analysis revealed the genome to be tetraploid and supports a haploid assembly size of ~ 0.68 Gb”
✓ located verbatim in the source · abstract, characters 759–879

Title

Long-read de novo assembly of the spekboom (Portulacaria afra) genome

Wilku B. Meyer; Helmien Barkhuizen-Roode; Larysha Rothmann; et al. Scientific Data 2025. doi:10.1038/s41597-025-06019-z

Other claims from this paper (2)

Observation The spekboom genome is tetraploid.
Method / resource The assembly has 99.3% complete BUSCO genes.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The assembly has 99.3% complete BUSCO genes.

Taxon: Portulacaria afraPortulacaria afrae1
Outcome: complete BUSCO genese3
Value: 99.3%e3

Verbatim

e1
“Portulacaria afra (P. afra), or Spekboom as it is locally known”
✓ located verbatim in the source · abstract, characters 0–63

e3
“BUSCO analysis revealed 99.3% complete BUSCO genes”
✓ located verbatim in the source · abstract, characters 881–931

Title

Long-read de novo assembly of the spekboom (Portulacaria afra) genome

Wilku B. Meyer; Helmien Barkhuizen-Roode; Larysha Rothmann; et al. Scientific Data 2025. doi:10.1038/s41597-025-06019-z

Other claims from this paper (2)

Observation The spekboom genome is tetraploid.
Method / resource The haploid assembly size of the spekboom genome is about 0.68 Gb.

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Root biomass was significantly lower in cuttings grown in soil from Site C than in cuttings grown in soils from Sites A and B.

Taxon: Portulacaria afraPortulacaria afrat0
Treatment: soil from Site Ce1
Outcome: Root biomasse1
Direction: lowere1
Comparator: Sites A and Be1

Verbatim

t0
“Restoring South African subtropical succulent thicket using Portulacaria afra”
✓ located verbatim in the source · title, characters 0–77

e1
“Root biomass was significantly lower in cuttings grown in soil from Site C (calcareous; historically open canopy) compared to Sites A and B (slightly saline and non-saline, respectively; historically closed-canopy thicket)”
✓ located verbatim in the source · abstract, characters 1712–1934

Title

Restoring South African subtropical succulent thicket using Portulacaria afra: rooting variation across three soil types

Alastair J. Potts; Duncan Liddell; Catherine E. Clarke; et al. PeerJ 2025. doi:10.7717/peerj.19303

Other claims from this paper (6)

Observation Soil from Site C had a higher pH than soils from Sites A and B.
Observation Soil from Site C had increased Ca 2+ concentration.
Observation Soil from Site C had Ca saturation of 83% against 62% and 53% at Sites A and B.
Observation Soil from Site C had lower P concentration.
Mechanism High pH and low P availability likely suppressed root initiation and development of Portulacaria afra.
Recommendation The possible historic vegetation structure should be accounted for when setting restoration targets.

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

High pH and low P availability likely suppressed root initiation and development of Portulacaria afra.

Taxon: Portulacaria afraPortulacaria afrat0
Outcome: root initiation and developmente6
Qualifier: high pH and low P availabilitye6

Verbatim

t0
“Restoring South African subtropical succulent thicket using Portulacaria afra”
✓ located verbatim in the source · title, characters 0–77

e6
“These factors, particularly high pH and low P availability, likely suppressed root initiation and development”
✓ located verbatim in the source · abstract, characters 2300–2409

Title

Restoring South African subtropical succulent thicket using Portulacaria afra: rooting variation across three soil types

Alastair J. Potts; Duncan Liddell; Catherine E. Clarke; et al. PeerJ 2025. doi:10.7717/peerj.19303

Other claims from this paper (6)

Intervention effect Root biomass was significantly lower in cuttings grown in soil from Site C than in cuttings grown in soils from Sites A and B.
Observation Soil from Site C had a higher pH than soils from Sites A and B.
Observation Soil from Site C had increased Ca 2+ concentration.
Observation Soil from Site C had Ca saturation of 83% against 62% and 53% at Sites A and B.
Observation Soil from Site C had lower P concentration.
Recommendation The possible historic vegetation structure should be accounted for when setting restoration targets.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Twenty-nine compounds were identified in Portulacaria oil.

Taxon: Portulacaria afraPortulacaria afrat0
Outcome: compounds were successfully identifiede0
Value: twenty-nine compoundse0

Verbatim

e0
“twenty-nine compounds were successfully identified in the extracted essential oil”
✓ located verbatim in the source · abstract, characters 453–534

t0
“Portulacaria afra”
✓ located verbatim in the source · title, characters 81–98

Title

Essential oil composition, antibacterial activity and postharvest application of Portulacaria afra for enhancing shelf life and quality of citrus fruits

Moazzam, Anees; Muhammad, Rizwan Tariq; Muhammad, Saleem Haider; et al. Zenodo (CERN European Organization for Nuclear Research) 2025. doi:10.5281/zenodo.17605574

Other claims from this paper (14)

Observation Palmitic acid comprised 36.95% of Portulacaria oil.
Observation Linoleic acid comprised 8.83% of Portulacaria oil.
Observation 5-methyl-2-furancarboxaldehyde comprised 8.82% of Portulacaria oil.
Observation Portulacaria oil significantly inhibited Escherichia coli.
Observation Portulacaria oil significantly inhibited Staphylococcus aureus.
Intervention effect Portulacaria oil coatings delayed citrus senescence relative to untreated fruit.
Intervention effect Portulacaria oil coatings maintained citrus organoleptic properties relative to untreated fruit.
Intervention effect Portulacaria oil coatings reduced citrus microbial spoilage relative to untreated fruit.
Observation Portulacaria coating maintained citrus firmness.
Observation Portulacaria coating lessened citrus weight loss.
Observation Portulacaria coating increased citrus vitamin C retention.
Observation Portulacaria coating increased citrus POD activity.
Observation Portulacaria coating increased citrus CAT activity.
Observation Portulacaria coating controlled oxidative stress in citrus fruit.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Palmitic acid comprised 36.95% of Portulacaria oil.

Taxon: Portulacaria afraPortulacaria afrat0
Outcome: palmitic acide0
Value: 36.95%e0

Verbatim

e0
“The main constituents were palmitic acid (36.95%)”
✓ located verbatim in the source · abstract, characters 536–585

t0
“Portulacaria afra”
✓ located verbatim in the source · title, characters 81–98

Title

Essential oil composition, antibacterial activity and postharvest application of Portulacaria afra for enhancing shelf life and quality of citrus fruits

Moazzam, Anees; Muhammad, Rizwan Tariq; Muhammad, Saleem Haider; et al. Zenodo (CERN European Organization for Nuclear Research) 2025. doi:10.5281/zenodo.17605574

Other claims from this paper (14)

Observation Twenty-nine compounds were identified in Portulacaria oil.
Observation Linoleic acid comprised 8.83% of Portulacaria oil.
Observation 5-methyl-2-furancarboxaldehyde comprised 8.82% of Portulacaria oil.
Observation Portulacaria oil significantly inhibited Escherichia coli.
Observation Portulacaria oil significantly inhibited Staphylococcus aureus.
Intervention effect Portulacaria oil coatings delayed citrus senescence relative to untreated fruit.
Intervention effect Portulacaria oil coatings maintained citrus organoleptic properties relative to untreated fruit.
Intervention effect Portulacaria oil coatings reduced citrus microbial spoilage relative to untreated fruit.
Observation Portulacaria coating maintained citrus firmness.
Observation Portulacaria coating lessened citrus weight loss.
Observation Portulacaria coating increased citrus vitamin C retention.
Observation Portulacaria coating increased citrus POD activity.
Observation Portulacaria coating increased citrus CAT activity.
Observation Portulacaria coating controlled oxidative stress in citrus fruit.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Linoleic acid comprised 8.83% of Portulacaria oil.

Taxon: Portulacaria afraPortulacaria afrat0
Outcome: linoleic acide0
Value: 8.83%e0

Verbatim

e0
“linoleic acid (8.83%)”
✓ located verbatim in the source · abstract, characters 587–608

t0
“Portulacaria afra”
✓ located verbatim in the source · title, characters 81–98

Title

Essential oil composition, antibacterial activity and postharvest application of Portulacaria afra for enhancing shelf life and quality of citrus fruits

Moazzam, Anees; Muhammad, Rizwan Tariq; Muhammad, Saleem Haider; et al. Zenodo (CERN European Organization for Nuclear Research) 2025. doi:10.5281/zenodo.17605574

Other claims from this paper (14)

Observation Twenty-nine compounds were identified in Portulacaria oil.
Observation Palmitic acid comprised 36.95% of Portulacaria oil.
Observation 5-methyl-2-furancarboxaldehyde comprised 8.82% of Portulacaria oil.
Observation Portulacaria oil significantly inhibited Escherichia coli.
Observation Portulacaria oil significantly inhibited Staphylococcus aureus.
Intervention effect Portulacaria oil coatings delayed citrus senescence relative to untreated fruit.
Intervention effect Portulacaria oil coatings maintained citrus organoleptic properties relative to untreated fruit.
Intervention effect Portulacaria oil coatings reduced citrus microbial spoilage relative to untreated fruit.
Observation Portulacaria coating maintained citrus firmness.
Observation Portulacaria coating lessened citrus weight loss.
Observation Portulacaria coating increased citrus vitamin C retention.
Observation Portulacaria coating increased citrus POD activity.
Observation Portulacaria coating increased citrus CAT activity.
Observation Portulacaria coating controlled oxidative stress in citrus fruit.

Observationobservedoriginal resultmeasured

Claim · model-written summary

5-methyl-2-furancarboxaldehyde comprised 8.82% of Portulacaria oil.

Taxon: Portulacaria afraPortulacaria afrat0
Outcome: 5-methyl-2-furancarboxaldehydee0
Value: 8.82%e0

Verbatim

e0
“5-methyl-2-furancarboxaldehyde (8.82%)”
✓ located verbatim in the source · abstract, characters 614–652

t0
“Portulacaria afra”
✓ located verbatim in the source · title, characters 81–98

Title

Essential oil composition, antibacterial activity and postharvest application of Portulacaria afra for enhancing shelf life and quality of citrus fruits

Moazzam, Anees; Muhammad, Rizwan Tariq; Muhammad, Saleem Haider; et al. Zenodo (CERN European Organization for Nuclear Research) 2025. doi:10.5281/zenodo.17605574

Other claims from this paper (14)

Observation Twenty-nine compounds were identified in Portulacaria oil.
Observation Palmitic acid comprised 36.95% of Portulacaria oil.
Observation Linoleic acid comprised 8.83% of Portulacaria oil.
Observation Portulacaria oil significantly inhibited Escherichia coli.
Observation Portulacaria oil significantly inhibited Staphylococcus aureus.
Intervention effect Portulacaria oil coatings delayed citrus senescence relative to untreated fruit.
Intervention effect Portulacaria oil coatings maintained citrus organoleptic properties relative to untreated fruit.
Intervention effect Portulacaria oil coatings reduced citrus microbial spoilage relative to untreated fruit.
Observation Portulacaria coating maintained citrus firmness.
Observation Portulacaria coating lessened citrus weight loss.
Observation Portulacaria coating increased citrus vitamin C retention.
Observation Portulacaria coating increased citrus POD activity.
Observation Portulacaria coating increased citrus CAT activity.
Observation Portulacaria coating controlled oxidative stress in citrus fruit.

Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Portulacaria oil significantly inhibited Escherichia coli.

Taxon: P. afraPortulacaria afrae0
Outcome: inhibitory effects of P. afra oil against Escherichia colie0

Verbatim

e0
“significant inhibitory effects of P. afra oil against Escherichia coli and Staphylococcus aureus”
✓ located verbatim in the source · abstract, characters 688–784

Title

Essential oil composition, antibacterial activity and postharvest application of Portulacaria afra for enhancing shelf life and quality of citrus fruits

Moazzam, Anees; Muhammad, Rizwan Tariq; Muhammad, Saleem Haider; et al. Zenodo (CERN European Organization for Nuclear Research) 2025. doi:10.5281/zenodo.17605574

Other claims from this paper (14)

Observation Twenty-nine compounds were identified in Portulacaria oil.
Observation Palmitic acid comprised 36.95% of Portulacaria oil.
Observation Linoleic acid comprised 8.83% of Portulacaria oil.
Observation 5-methyl-2-furancarboxaldehyde comprised 8.82% of Portulacaria oil.
Observation Portulacaria oil significantly inhibited Staphylococcus aureus.
Intervention effect Portulacaria oil coatings delayed citrus senescence relative to untreated fruit.
Intervention effect Portulacaria oil coatings maintained citrus organoleptic properties relative to untreated fruit.
Intervention effect Portulacaria oil coatings reduced citrus microbial spoilage relative to untreated fruit.
Observation Portulacaria coating maintained citrus firmness.
Observation Portulacaria coating lessened citrus weight loss.
Observation Portulacaria coating increased citrus vitamin C retention.
Observation Portulacaria coating increased citrus POD activity.
Observation Portulacaria coating increased citrus CAT activity.
Observation Portulacaria coating controlled oxidative stress in citrus fruit.