Paper · 2023 · Egyptian Journal of Botany

The Influence of Spirulina platensis on Physiological Characterization and Mitigation of DNA Damage in Salt-stressed Phaseolus vulgaris L. Plants

Mohamed A. Taha; Helal R. Moussa; Eldessoky S. Dessoky

12
claims
36
verbatim quotes
6
citations
2
research areas
✓
Open access

Abstract

Salinity severely reduced crop productivity. In this work, the effectiveness of Spirulina platensis (100 mg/l) as a foliar growth stimulator was tested for its ability to reduce the harmful effect of salinity on Phaseolus vulgaris L. plants. The experiment was divided into four groups as follows: G1 (control), G2 (200 mM NaCl), G3 (100 mg/l of Spirulina platensis), and G4 (200 mM NaCl + 100 mg/l of Spirulina platensis). The results declared that shoot weight, plant height, leaves number, during the vegetative growth stage, pods number/plant, seed number/pod, pods weight during fruiting stage, as well as content of carotenoids, chlorophyll a+b, 100-seed weights, photosynthetic activity (assimilation of 14CO2), and total protein content reduced considerablyin salt-stressed Phaseolus vulgaris. When compared to salt-stressed plants, the above metrics were enhanced by G4. In comparison to the control, the presence of salinity increased the activities of catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPX), peroxidase activity (POD), malondialdehyde (MDA), free proline, transpiration rate, and total phenol. Additionally, compared to plants under salt stress, G4 application (200 mM NaCl + 100 mg/l of Spirulina platensis) decreased the aforementioned metrics. Treatments of Phaseolus vulgaris with 200 mM NaCl + 100 mg/l of Spirulina platensis considerably increased the macronutrient content and decreased the Na+ and Cl− levels as compared to G2. Obtained results proved that foliar applications of S. platensis at 100 mg/l have a high potential for improving growth, photosynthetic capacity, yield production, decreased ROS-induced oxidative damage, and reducing DNA damage in salt-stressed Phaseolus vulgaris.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 12

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity reduced shoot weight, height and leaf number.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaClt1
Outcome
shoot weight, plant height, leaves numbere0
Direction
reducede1
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“shoot weight, plant height, leaves number, during the vegetative growth stage”

✓ located verbatim in the source · abstract, characters 450–527 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“G1 (control), G2 (200 mM NaCl)”

✓ located verbatim in the source · abstract, characters 298–328 · show in text ↑
e1

“total protein content reduced considerablyin salt-stressed Phaseolus vulgaris”

✓ located verbatim in the source · abstract, characters 723–800 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity reduced pod number, seed number and pod weight.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaClt1
Outcome
pods number/plant, seed number/pod, pods weighte0
Direction
reducede1
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“pods number/plant, seed number/pod, pods weight during fruiting stage”

✓ located verbatim in the source · abstract, characters 529–598 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“G1 (control), G2 (200 mM NaCl)”

✓ located verbatim in the source · abstract, characters 298–328 · show in text ↑
e1

“total protein content reduced considerablyin salt-stressed Phaseolus vulgaris”

✓ located verbatim in the source · abstract, characters 723–800 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity reduced carotenoids, chlorophyll and photosynthetic activity.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaClt1
Outcome
carotenoids, chlorophyll a+be0
Direction
reducede0
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“content of carotenoids, chlorophyll a+b, 100-seed weights, photosynthetic activity (assimilation of 14CO2), and total protein content reduced considerablyin salt-stressed Phaseolus vulgaris”

✓ located verbatim in the source · abstract, characters 611–800 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“G1 (control), G2 (200 mM NaCl)”

✓ located verbatim in the source · abstract, characters 298–328 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity reduced 100-seed weight, photosynthetic activity and protein content.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaClt1
Outcome
100-seed weights, photosynthetic activity (assimilation of 14CO2), and total protein contente0
Direction
reducede0
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100-seed weights, photosynthetic activity (assimilation of 14CO2), and total protein content reduced considerablyin salt-stressed Phaseolus vulgaris”

✓ located verbatim in the source · abstract, characters 652–800 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“G1 (control), G2 (200 mM NaCl)”

✓ located verbatim in the source · abstract, characters 298–328 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined salt and Spirulina treatment enhanced the preceding growth, yield and physiological metrics against salt stress.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaCl + 100 mg/l of Spirulina platensist1
Interactor
Spirulina platensisLimnospira platensist1other
Outcome
above metricse0
Direction
enhancede0
Comparator
salt-stressed plantse0

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Limnospira platensis
Limnospira platensis · Interactor · 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

“When compared to salt-stressed plants, the above metrics were enhanced by G4.”

✓ located verbatim in the source · abstract, characters 802–879 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“G4 (200 mM NaCl + 100 mg/l of Spirulina platensis)”

✓ located verbatim in the source · abstract, characters 372–422 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Salinity increased CAT, SOD and GPX activities.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
salinitye0
Outcome
activities of catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPX)e0
Direction
increasede0
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“salinity increased the activities of catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPX)”

✓ located verbatim in the source · abstract, characters 926–1035 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“In comparison to the control”

✓ located verbatim in the source · abstract, characters 880–908 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Salinity increased POD, MDA and free proline.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
salinityt1
Outcome
peroxidase activity (POD), malondialdehyde (MDA), free prolinee0
Direction
increasedt1
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“peroxidase activity (POD), malondialdehyde (MDA), free proline”

✓ located verbatim in the source · abstract, characters 1037–1099 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“In comparison to the control, the presence of salinity increased”

✓ located verbatim in the source · abstract, characters 880–944 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Salinity increased transpiration rate and total phenol.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
salinityt1
Outcome
transpiration rate, and total phenole0
Direction
increasedt1
Comparator
controlt1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“transpiration rate, and total phenol”

✓ located verbatim in the source · abstract, characters 1101–1137 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“In comparison to the control, the presence of salinity increased”

✓ located verbatim in the source · abstract, characters 880–944 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined Spirulina and salt treatment decreased the preceding stress metrics relative to salt stress.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaCl + 100 mg/l of Spirulina platensise0
Interactor
Spirulina platensisLimnospira platensise0other
Outcome
aforementioned metricse0
Direction
decreasede0
Comparator
plants under salt stresst1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Limnospira platensis
Limnospira platensis · Interactor · 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

“G4 application (200 mM NaCl + 100 mg/l of Spirulina platensis) decreased the aforementioned metrics”

✓ located verbatim in the source · abstract, characters 1191–1290 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“compared to plants under salt stress”

✓ located verbatim in the source · abstract, characters 1153–1189 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined treatment increased macronutrient content versus salt alone.

Taxon
Phaseolus vulgarisPhaseolus vulgarise0
Treatment
200 mM NaCl + 100 mg/l of Spirulina platensise0
Interactor
Spirulina platensisLimnospira platensise0other
Outcome
macronutrient contente0
Direction
increasede0
Comparator
G2t1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Limnospira platensis
Limnospira platensis · Interactor · 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

“Treatments of Phaseolus vulgaris with 200 mM NaCl + 100 mg/l of Spirulina platensis considerably increased the macronutrient content”

✓ located verbatim in the source · abstract, characters 1292–1424 · show in text ↑
t1

“as compared to G2”

✓ located verbatim in the source · abstract, characters 1462–1479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined treatment decreased Na+ and Cl− levels versus salt alone.

Taxon
Phaseolus vulgaris L.Phaseolus vulgarist0
Treatment
200 mM NaCl + 100 mg/l of Spirulina platensist1
Interactor
Spirulina platensisLimnospira platensist1other
Outcome
Na+ and Cl− levelse0
Direction
decreasede0
Comparator
G2e0

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Limnospira platensis
Limnospira platensis · Interactor · 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

“decreased the Na+ and Cl− levels as compared to G2”

✓ located verbatim in the source · abstract, characters 1429–1479 · show in text ↑
t0

“Phaseolus vulgaris L. Plants”

✓ located verbatim in the source · title, characters 117–145 · show in text ↑
t1

“Treatments of Phaseolus vulgaris with 200 mM NaCl + 100 mg/l of Spirulina platensis”

✓ located verbatim in the source · abstract, characters 1292–1375 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Authors conclude Spirulina foliar application reduces ROS oxidative damage and DNA damage under salt stress.

Taxon
Phaseolus vulgarisPhaseolus vulgarise0
Treatment
S. platensis at 100 mg/lt1
Interactor
S. platensisLimnospira platensist1other
Outcome
ROS-induced oxidative damage, and reducing DNA damagee0
Direction
reducinge0
Comparator
salt-stressed Phaseolus vulgarise0

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Limnospira platensis
Limnospira platensis · Interactor · 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

“decreased ROS-induced oxidative damage, and reducing DNA damage in salt-stressed Phaseolus vulgaris”

✓ located verbatim in the source · abstract, characters 1645–1744 · show in text ↑
t1

“S. platensis at 100 mg/l”

✓ located verbatim in the source · abstract, characters 1533–1557 · show in text ↑

sodium chloride · physiology: pigments · Phaseolus vulgaris (common bean)Results differ

10 papers: 1 positive, 9 negative or no effect

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

  1. positive
  2. no effect
  3. negative

6 papers more in this group

See all 10 papers →

sodium chloride · growth · Phaseolus vulgaris (common bean)Results differ

43 papers: 5 positive, 38 negative or no effect

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

  1. positive
  2. positive
  3. positive

39 papers more in this group

See all 43 papers →

sodium chloride · physiology: photosynthesis · Phaseolus vulgaris (common bean)Positive and negative results

10 papers: 1 positive, 9 negative or no effect

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

  1. positive
  2. negative
  3. negative

6 papers more in this group

See all 10 papers →

sodium chloride · yield · Phaseolus vulgaris (common bean)Results agree

12 papers: 0 positive, 12 negative or no effect

11 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

8 papers more in this group

See all 12 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.