Paper · 2023 · Biomass Conversion and Biorefinery

Water extracts of Spirulina platensis and Chlorella vulgaris enhance tomato (Solanum lycopersicum L.) tolerance against saline water irrigation

Maryam M. Mostafa; Doaa M. Hammad; Marwa M. Reda; et al.

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verbatim quotes
15
citations
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Open access · cc-by

Abstract

Abstract The research aimed to examine the enhancement effect of Spirulina platensis (blue-green microalga or Cyanobacterium ) and Chlorella vulgaris (green microalga) water extracts as biological stimulant in improving growth parameters, chlorophyll content, yield, and fruit quality of tomato plants under salinity stress. Tomato seeds ( Solanum lycopersicum L. of cv. Agyad) were soaked in three microalgae water extracts at a 10% concentration ( Chlorella vulgaris , Spirulina platensis , and Chlorella:Spirulina at a ratio of 1:1). Chemical and biochemical analyses for the used materials and products were achieved. After germination, tomato transplants were irrigated with saline water at three levels of saline water (2, 4, and 7 dS/m) using sea salt. Successive grown tomato transplant at 7.0 dS/cm were infused in clayey soil. The grown plants were preyed by algal extract and irrigated by the same solution. Vegetative growth, yield, shelf life, and chlorophylls (a and b) were determined. It was found that the highest vegetative growth, yield, and chlorophyll content were measured in tomato transplants with the Spirulina : Chlorella mixture, followed by Spirulina platensis and Chlorella vulgaris water extracts; all of these measurements increased significantly in response to microalgae treatments. Experimental tomato fruits of Chlorella and mixture treatments can stay for 45 days at room temperature. Both algal extracts and their mixture enhanced the bioaccumulation of micronutrients (Fe, Zn, Mn, and Cu), compared with the control, while Chlorella extract surpassed Spirulina and mixture extracts. Concerning the used dried algae and their water extract, Spirulina platensis surpasses Chlorella vulgaris for protein and ash content.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Vegetative growth, yield and chlorophyll content of tomato were highest with the Spirulina:Chlorella mixture, followed by Spirulina platensis and Chlorella vulgaris extracts.

Treatment
Spirulina : Chlorella mixturee0
Outcome
vegetative growth, yield, and chlorophyll contente0
Direction
higheste0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest vegetative growth, yield, and chlorophyll content were measured in tomato transplants with the Spirulina : Chlorella mixture, followed by Spirulina platensis and Chlorella vulgaris water extracts”

✓ located verbatim in the source · abstract, characters 1019–1226 · show in text ↑
t0

“tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · title, characters 69–101 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

All measurements of growth, yield and chlorophyll increased significantly in response to microalgae treatments.

Treatment
microalgae treatmentse0
Outcome
all of these measurementse0
Direction
increasede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“all of these measurements increased significantly in response to microalgae treatments”

✓ located verbatim in the source · abstract, characters 1228–1314 · show in text ↑
t0

“tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · title, characters 69–101 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Tomato fruits of the Chlorella and mixture treatments could be kept for 45 days at room temperature.

Outcome
can stay for 45 dayse0
Value
45 dayse0
Setting
room temperaturee0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Experimental tomato fruits of Chlorella and mixture treatments can stay for 45 days at room temperature”

✓ located verbatim in the source · abstract, characters 1316–1419 · show in text ↑
t0

“tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · title, characters 69–101 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Algal extracts and their mixture enhanced bioaccumulation of micronutrients (Fe, Zn, Mn, Cu) in tomato compared with the control.

Treatment
Both algal extracts and their mixturee0
Outcome
bioaccumulation of micronutrients (Fe, Zn, Mn, and Cu)e0
Direction
enhancede0
Comparator
controle0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Both algal extracts and their mixture enhanced the bioaccumulation of micronutrients (Fe, Zn, Mn, and Cu), compared with the control”

✓ located verbatim in the source · abstract, characters 1421–1553 · show in text ↑
t0

“tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · title, characters 69–101 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chlorella extract surpassed Spirulina and mixture extracts in micronutrient bioaccumulation.

Treatment
Chlorella extracte0
Outcome
bioaccumulation of micronutrientse1
Direction
surpassede0
Comparator
Spirulina and mixture extractse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“while Chlorella extract surpassed Spirulina and mixture extracts”

✓ located verbatim in the source · abstract, characters 1555–1619 · show in text ↑
e1

“bioaccumulation of micronutrients”

✓ located verbatim in the source · abstract, characters 1472–1505 · show in text ↑
t0

“tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · title, characters 69–101 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Dried Spirulina platensis and its water extract surpassed Chlorella vulgaris in protein and ash content.

Taxon
Spirulina platensisLimnospira platensise0
Outcome
protein and ash contente0
Comparator
Chlorella vulgarise0

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

Limnospira platensis
Limnospira platensis · Taxon · picture from its Wikimedia Commons categoryThis photo has been taken by Matthieu Sontag (User:Mirgolth) and released under the licenses stated below. You are free to use it for any purpose as long as you · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spirulina platensis surpasses Chlorella vulgaris for protein and ash content”

✓ located verbatim in the source · abstract, characters 1678–1754 · show in text ↑

Chlorella · physiology: pigments · Solanum lycopersicum (tomato)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 →

Chlorella · nutrient: content · Solanum lycopersicum (tomato)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 · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results

18 papers: 15 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. negative

14 papers more in this group

See all 18 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.