Abstract
This work clarifies some of the substances involved with the biostimulant effect shown by 28 cyanobacteria isolated from different aquatic environments. The production of salicylic acid, cytokinins, siderophores and phosphate solubilization were analyzed in vitro, as well as the phytostimulant/phytotoxic effect on watercress seeds at two different extract concentrations (0.5 and 0.2 mg mL−1). The most prominent plant growth promoting cyanobacteria were verified in vivo at two different doses (0.5 and 0.1 mg mL−1). 21.4 % and 7.1 % of the tested strains produced siderophores or phosphate solubilization, respectively. The production of salicylic acid was stood out for the strains Calothrix SAB-B797, Nostoc SAB-B1300 and Nostoc SAB-M612, while Nostoc SAB-M251 and Trichormus SAB-M304 were noticeable regard to cytokinin production. The highest values of germination occurred when the extracts were applied in low dose (0.5 mg mL−1). Nostoc SAB-M612 provoked the stimulation of aerial and radicular growth in cucumber seedlings.
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Claims 6
Claim · model-written summary
21.4 % of the tested cyanobacterial strains produced siderophores.
- Taxon
- watercress
Nasturtium officinalee0 - Interactor
- cyanobacteriaCyanobacteriotae2symbiont
- Outcome
- siderophorese1
- Value
- 21.4 %e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of salicylic acid, cytokinins, siderophores and phosphate solubilization were analyzed in vitro, as well as the phytostimulant/phytotoxic effect on watercress seeds at two different extract concentrations (0.5 and 0.2 mg mL−1)”
e1“21.4 % and 7.1 % of the tested strains produced siderophores or phosphate solubilization, respectively”
e2“This work clarifies some of the substances involved with the biostimulant effect shown by 28 cyanobacteria isolated from different aquatic environments”
Claim · model-written summary
7.1 % of the tested cyanobacterial strains solubilized phosphate.
- Taxon
- watercressNasturtium officinalee0
- Interactor
- cyanobacteriaCyanobacteriotae2symbiont
- Outcome
- phosphate solubilizatione1
- Value
- 7.1 %e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of salicylic acid, cytokinins, siderophores and phosphate solubilization were analyzed in vitro, as well as the phytostimulant/phytotoxic effect on watercress seeds at two different extract concentrations (0.5 and 0.2 mg mL−1)”
e1“21.4 % and 7.1 % of the tested strains produced siderophores or phosphate solubilization, respectively”
e2“This work clarifies some of the substances involved with the biostimulant effect shown by 28 cyanobacteria isolated from different aquatic environments”
Claim · model-written summary
Calothrix SAB-B797 and two Nostoc strains stood out for salicylic acid production.
- Taxon
- watercressNasturtium officinalee0
- Material
- Calothrix SAB-B797, Nostoc SAB-B1300 and Nostoc SAB-M612e3
- Outcome
- production of salicylic acide3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of salicylic acid, cytokinins, siderophores and phosphate solubilization were analyzed in vitro, as well as the phytostimulant/phytotoxic effect on watercress seeds at two different extract concentrations (0.5 and 0.2 mg mL−1)”
e3“The production of salicylic acid was stood out for the strains Calothrix SAB-B797, Nostoc SAB-B1300 and Nostoc SAB-M612”
Claim · model-written summary
Nostoc SAB-M251 and Trichormus SAB-M304 were noticeable for cytokinin production.
- Taxon
- watercressNasturtium officinalee0
- Material
- Nostoc SAB-M251 and Trichormus SAB-M304e4
- Outcome
- cytokinin productione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of salicylic acid, cytokinins, siderophores and phosphate solubilization were analyzed in vitro, as well as the phytostimulant/phytotoxic effect on watercress seeds at two different extract concentrations (0.5 and 0.2 mg mL−1)”
e4“Nostoc SAB-M251 and Trichormus SAB-M304 were noticeable regard to cytokinin production”
Claim · model-written summary
Germination was highest when watercress seeds received the extracts at the low dose of 0.5 mg mL−1.
- Taxon
- watercressNasturtium officinalee0
- Treatment
- extracts were applied in low dose (0.5 mg mL−1)e5
- Outcome
- germinatione5
- Direction
- higheste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production of salicylic acid, cytokinins, siderophores and phosphate solubilization were analyzed in vitro, as well as the phytostimulant/phytotoxic effect on watercress seeds at two different extract concentrations (0.5 and 0.2 mg mL−1)”
e5“The highest values of germination occurred when the extracts were applied in low dose (0.5 mg mL−1)”
Claim · model-written summary
Nostoc SAB-M612 stimulated aerial and radicular growth of cucumber seedlings.
- Taxon
- cucumber
Cucumis sativuse6 - Treatment
- Nostoc SAB-M612e6
- Interactor
- Nostoc SAB-M612e6symbiont
- Outcome
- aerial and radicular growthe6
- Direction
- stimulatione6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Nostoc SAB-M612 provoked the stimulation of aerial and radicular growth in cucumber seedlings”
The same questions in other papers
botanical · growth · Nasturtium officinale (watercress)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 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.