Paper · 2026 · Scientific Reports

Delonix regia pollen extract enhances growth and bioactive compound production in Coriandrum sativum by upregulating key biosynthetic genes

Eman M. Bassiouni; Dalia Y. El-Berawey; Salwa M. Abdel Rahman; et al.

6
claims
12
verbatim quotes
0
citations
3
research areas
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Open access · cc-by

Abstract

The application of biostimulants represents a sustainable strategy to enhance crop productivity and resilience. This study investigated the efficacy of Delonix regia pollen aqueous extract as a biostimulant on coriander (Coriandrum sativum). Seeds were primed with different concentrations of the extract (0%, 0.5%, 1%, and 1.5%) for 24-48 h. The 1% extract applied for 48 h was the most effective treatment, significantly increasing shoot fresh and dry weight, shoot length, and the content of total protein, phenolics, flavonoids, and terpenes. This treatment also led to a significant upregulation of the key biosynthetic genes Chalcone synthase (CHS) and geranylgeranyl pyrophosphate synthase (GGPS) by 1.4-fold and 2.1-fold, respectively. Principal component analysis confirmed a positive correlation among shoot fresh weight, total protein, terpene content, and GGPS expression. These findings demonstrate that D. regia pollen extract is a potent biostimulant that enhances coriander growth and the production of valuable bioactive compounds through the modulation of key metabolic pathways.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent pollen extract for 48 h significantly increased coriander shoot fresh and dry weight and shoot length.

Taxon
Coriandrum sativumCoriandrum sativumt0
Organ / stage
shoote0
Treatment
1% extract applied for 48 he0
Outcome
shoot fresh and dry weight, shoot lengthe0
Direction
increasinge0

Not reportedComparator

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

Coriandrum sativum
Coriandrum sativum · TaxonThamizhpparithi Maari · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The 1% extract applied for 48 h was the most effective treatment, significantly increasing shoot fresh and dry weight, shoot length, and the content of total protein, phenolics, flavonoids, and terpenes.”

✓ located verbatim in the source · abstract, characters 343–546 · show in text ↑
t0

“Coriandrum sativum”

✓ located verbatim in the source · title, characters 82–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent extract for 48 h significantly increased total protein, phenolics and flavonoids in coriander.

Taxon
Coriandrum sativumCoriandrum sativumt0
Treatment
1% extract applied for 48 he0
Outcome
content of total protein, phenolics, flavonoidse0
Direction
increasinge0

Not reportedComparator

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

Coriandrum sativum
Coriandrum sativum · TaxonThamizhpparithi Maari · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The 1% extract applied for 48 h was the most effective treatment, significantly increasing shoot fresh and dry weight, shoot length, and the content of total protein, phenolics, flavonoids, and terpenes.”

✓ located verbatim in the source · abstract, characters 343–546 · show in text ↑
t0

“Coriandrum sativum”

✓ located verbatim in the source · title, characters 82–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent extract for 48 h significantly increased terpene content in coriander.

Taxon
Coriandrum sativumCoriandrum sativumt0
Treatment
1% extract applied for 48 he0
Outcome
terpenese0
Direction
increasinge0

Not reportedComparator

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

Coriandrum sativum
Coriandrum sativum · TaxonThamizhpparithi Maari · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The 1% extract applied for 48 h was the most effective treatment, significantly increasing shoot fresh and dry weight, shoot length, and the content of total protein, phenolics, flavonoids, and terpenes.”

✓ located verbatim in the source · abstract, characters 343–546 · show in text ↑
t0

“Coriandrum sativum”

✓ located verbatim in the source · title, characters 82–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The treatment significantly upregulated CHS by 1.4-fold.

Taxon
Coriandrum sativumCoriandrum sativumt0
Treatment
This treatmente0
Gene
Chalcone synthase (CHS)e0
Outcome
upregulatione0
Direction
upregulatione0
Value
1.4-folde0

Not reportedComparator

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

Coriandrum sativum
Coriandrum sativum · TaxonThamizhpparithi Maari · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment also led to a significant upregulation of the key biosynthetic genes Chalcone synthase (CHS) and geranylgeranyl pyrophosphate synthase (GGPS) by 1.4-fold and 2.1-fold, respectively.”

✓ located verbatim in the source · abstract, characters 547–743 · show in text ↑
t0

“Coriandrum sativum”

✓ located verbatim in the source · title, characters 82–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The treatment significantly upregulated GGPS by 2.1-fold.

Taxon
Coriandrum sativumCoriandrum sativumt0
Treatment
This treatmente0
Gene
geranylgeranyl pyrophosphate synthase (GGPS)e0
Outcome
upregulatione0
Direction
upregulatione0
Value
2.1-folde0

Not reportedComparator

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

Coriandrum sativum
Coriandrum sativum · TaxonThamizhpparithi Maari · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment also led to a significant upregulation of the key biosynthetic genes Chalcone synthase (CHS) and geranylgeranyl pyrophosphate synthase (GGPS) by 1.4-fold and 2.1-fold, respectively.”

✓ located verbatim in the source · abstract, characters 547–743 · show in text ↑
t0

“Coriandrum sativum”

✓ located verbatim in the source · title, characters 82–100 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Shoot fresh weight, total protein, terpene content and GGPS expression were positively correlated.

Taxon
Coriandrum sativumCoriandrum sativumt0
Gene
GGPSe0
Outcome
shoot fresh weight, total protein, terpene contente0
Direction
positive correlatione0

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

Coriandrum sativum
Coriandrum sativum · TaxonThamizhpparithi Maari · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Principal component analysis confirmed a positive correlation among shoot fresh weight, total protein, terpene content, and GGPS expression.”

✓ located verbatim in the source · abstract, characters 744–884 · show in text ↑
t0

“Coriandrum sativum”

✓ located verbatim in the source · title, characters 82–100 · show in text ↑

botanical · growth · Coriandrum sativum (coriander)Positive and negative results

9 papers: 6 positive, 3 negative or no effect

5 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

5 papers more in this group

See all 9 papers →

botanical · quality: protein · Coriandrum sativum (coriander)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

botanical · molecular: metabolites · Coriandrum sativum (coriander)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.