Abstract
BACKGROUND: The scarcity of irrigation water is severely affecting global crop production. In this context, biostimulants are increasingly used as alternatives means against abiotic stress conditions. In this study, phenolic compounds composition and bioactive properties of common bean (Phaseolus vulgaris L.) plants grown under water stress conditions and biostimulants application were investigated. RESULTS: Sixteen individual phenolic compounds were detected in both pods and seeds with a notable difference in their compositional profile. A significant effect on phenolic compounds content and composition was also observed for the biostimulants tested. Regarding the antibacterial activity, pods of the second harvest and seed extracts showed significant efficacy against Bacillus cereus, especially in water-stressed plants, where all biostimulant treatments were more effective than positive controls. Moreover, all biostimulant treatments for seed extracts of water-stressed plants were more effective against Staphylococcus aureus compared with ampicillin, whereas streptomycin showed the best results. Extracts from pods of the second harvest from normally irrigated plants showed the best results against the fungi tested, except for Penicillium verrucosum var. cyclopium. Finally, no significant cytotoxic effects were detected. CONCLUSION: In conclusion, the biostimulants tested increased total phenolic compounds content compared with control treatment, especially in pods of the first harvest and seeds of water-stressed plants. Moreover, bioactive properties showed a varied response in regard to irrigation and biostimulant treatment. Therefore, biostimulants can be considered as a useful means towards increasing phenolic compounds content, and they may also affect the antimicrobial properties of pods and seeds extracts. © 2019 Society of Chemical Industry.
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Claims 8
Claim · model-written summary
Sixteen phenolic compounds were detected in bean pods and seeds, with different profiles.
- Taxon
- common bean (Phaseolus vulgaris L.)
Phaseolus vulgarist0 - Organ / stage
- pods and seedse0
- Outcome
- individual phenolic compoundse0
- Value
- Sixteene0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sixteen individual phenolic compounds were detected in both pods and seeds with a notable difference in their compositional profile.”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Biostimulants significantly affected phenolic content and composition.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Treatment
- biostimulantse0
- Outcome
- phenolic compounds content and compositione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant effect on phenolic compounds content and composition was also observed for the biostimulants tested.”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Under water stress, biostimulant treated second-harvest pod and seed extracts were more effective against Bacillus cereus than positive controls.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Organ / stage
- pods of the second harvest and seed extractse0
- Treatment
- biostimulant treatmentse0
- Interactor
- Bacillus cereus
Bacillus cereuse0other - Outcome
- efficacy against Bacillus cereuse0
- Direction
- more effectivee0
- Comparator
- positive controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pods of the second harvest and seed extracts showed significant efficacy against Bacillus cereus, especially in water-stressed plants, where all biostimulant treatments were more effective than positive controls.”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Seed extracts from water-stressed, biostimulant-treated beans were more effective against Staphylococcus aureus than ampicillin.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Organ / stage
- seed extractse0
- Treatment
- biostimulant treatmentse0
- Interactor
- Staphylococcus aureus
Staphylococcus aureuse0other - Outcome
- effective against Staphylococcus aureuse0
- Direction
- more effectivee0
- Comparator
- ampicilline0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all biostimulant treatments for seed extracts of water-stressed plants were more effective against Staphylococcus aureus compared with ampicillin”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Streptomycin performed best against Staphylococcus aureus.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Treatment
- streptomycine0
- Outcome
- best resultse0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas streptomycin showed the best results.”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Second-harvest pod extracts from normally irrigated plants performed best against tested fungi except Penicillium verrucosum var. cyclopium.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Organ / stage
- pods of the second harveste0
- Outcome
- best results against the fungi testede0
- Direction
- beste0
- Qualifier
- except for Penicillium verrucosum var. cyclopiume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extracts from pods of the second harvest from normally irrigated plants showed the best results against the fungi tested, except for Penicillium verrucosum var. cyclopium.”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Bean extracts had no significant cytotoxic effects.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Outcome
- cytotoxic effectse0
- Direction
- no significante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant cytotoxic effects were detected”
t0“common bean (Phaseolus vulgaris L.) plants”
Claim · model-written summary
Biostimulants increased total phenolics versus control, especially in first-harvest pods and water-stressed seeds.
- Taxon
- common bean (Phaseolus vulgaris L.)Phaseolus vulgarist0
- Organ / stage
- pods of the first harvest and seedse0
- Treatment
- biostimulantse0
- Outcome
- total phenolic compounds contente0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biostimulants tested increased total phenolic compounds content compared with control treatment, especially in pods of the first harvest and seeds of water-stressed plants.”
t0“common bean (Phaseolus vulgaris L.) plants”
The same questions in other papers
other · quality: phytochemicals · Phaseolus vulgaris (common bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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.