Abstract
Low phosphorus (P) availability is a major limiting factor facing current agriculture in several agricultural areas. Many P fertilizers are applied to enhance P availability; however, the major part is likely to lose due to various processes related to P cycle. Silicon (Si) treatment and P-solubilizing bacteria inoculation have been emerged as a promising way to improve plant P nutrition. This study aimed to investigate the synergistic effects of Si treatment and Pseudomonas alkylphenolica PF9 strain inoculation on plant growth, P nutrition, acid phosphatase (APase) activity, oxidative stress markers, and antioxidant metabolism in the Moroccan alfalfa population Oued Lmalah ( OL ) under low P availability. Results revealed a significant reduction in dry biomass, plant height, leaf number, and area under low P conditions. P deficiency also altered P nutrition and chlorophyll (Chl) content. However, P-deficient alfalfa plants treated with Si or inoculated with PF9 strain displayed higher plant growth, Chl content, and remarkably the effect was much higher when Si was applied together with PF9 strain. Moreover, the simultaneous application of Si and PF9 strain to the P-deficient alfalfa plants improved APase activity and as a result, P contents in both the shoots and roots. Results also showed that the application of both the Si and PF9 counteracted the low P availability stress-induced oxidative damage by lowering the accumulation of reactive oxygen species (ROS), electrolyte leakage, and lipid peroxidation. This seems to be related to the ability of both the Si and PF9 strain to modulate both the enzymatic and non-enzymatic antioxidant molecules including superoxide dismutase activity, total polyphenols, flavonoids, and proline contents. Our findings suggest that the combined application of Si and P. alkylphenolica PF9 strain could be a promising way for improving growth of alfalfa under low-P availability.
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Claims 10
Claim · model-written summary
Low P significantly reduced alfalfa dry biomass, plant height, leaf number, and area.
- Taxon
- Alfalfa (Medicago sativa L.)
Medicago sativat0 - Treatment
- low P conditionse0
- Outcome
- dry biomass, plant height, leaf number, and areae0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results revealed a significant reduction in dry biomass, plant height, leaf number, and area under low P conditions.”
t0“Alfalfa (Medicago sativa L.)”
Claim · model-written summary
P deficiency altered alfalfa P nutrition and chlorophyll content.
- Taxon
- Alfalfa (Medicago sativa L.)Medicago sativat0
- Treatment
- P deficiencye0
- Outcome
- P nutrition and chlorophyll (Chl) contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P deficiency also altered P nutrition and chlorophyll (Chl) content.”
t0“Alfalfa (Medicago sativa L.)”
Claim · model-written summary
Silicon treatment improved growth and chlorophyll content of P-deficient alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Sie0
- Outcome
- plant growth, Chl contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P-deficient alfalfa plants treated with Si or inoculated with PF9 strain displayed higher plant growth, Chl content”
Claim · model-written summary
PF9 inoculation improved growth and chlorophyll content of P-deficient alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- inoculated with PF9 straine0
- Interactor
- PF9 straine0symbiont
- Outcome
- plant growth, Chl contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P-deficient alfalfa plants treated with Si or inoculated with PF9 strain displayed higher plant growth, Chl content”
Claim · model-written summary
Combined Si and PF9 had a much higher effect on P-deficient alfalfa growth and chlorophyll than either treatment alone.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Si was applied together with PF9 straine0
- Interactor
- PF9 straine0symbiont
- Outcome
- plant growth, Chl contente0
- Direction
- highere0
- Comparator
- Si or inoculated with PF9 straine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P-deficient alfalfa plants treated with Si or inoculated with PF9 strain displayed higher plant growth, Chl content, and remarkably the effect was much higher when Si was applied together with PF9 strain.”
Claim · model-written summary
Combined Si and PF9 improved alfalfa acid phosphatase activity.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- simultaneous application of Si and PF9 straine0
- Interactor
- PF9 straine0symbiont
- Outcome
- APase activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the simultaneous application of Si and PF9 strain to the P-deficient alfalfa plants improved APase activity”
Claim · model-written summary
Combined Si and PF9 improved P contents in alfalfa shoots and roots.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- simultaneous application of Si and PF9 straine0
- Interactor
- PF9 straine0symbiont
- Outcome
- P contents in both the shoots and rootse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the simultaneous application of Si and PF9 strain to the P-deficient alfalfa plants improved APase activity and as a result, P contents in both the shoots and roots.”
Claim · model-written summary
Combined Si and PF9 lowered reactive oxygen species accumulation, electrolyte leakage, and lipid peroxidation under low P.
- Taxon
- Alfalfa (Medicago sativa L.)Medicago sativat0
- Treatment
- application of both the Si and PF9e0
- Interactor
- PF9e0symbiont
- Outcome
- accumulation of reactive oxygen species (ROS), electrolyte leakage, and lipid peroxidatione0
- Direction
- loweringe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of both the Si and PF9 counteracted the low P availability stress-induced oxidative damage by lowering the accumulation of reactive oxygen species (ROS), electrolyte leakage, and lipid peroxidation.”
t0“Alfalfa (Medicago sativa L.)”
Claim · model-written summary
The authors relate reduced oxidative damage to modulation of antioxidant molecules including SOD, polyphenols, flavonoids, and proline.
- Taxon
- Alfalfa (Medicago sativa L.)Medicago sativat0
- Treatment
- both the Si and PF9 straine0
- Interactor
- PF9 straine0symbiont
- Outcome
- superoxide dismutase activity, total polyphenols, flavonoids, and proline contentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This seems to be related to the ability of both the Si and PF9 strain to modulate both the enzymatic and non-enzymatic antioxidant molecules including superoxide dismutase activity, total polyphenols, flavonoids, and proline contents.”
t0“Alfalfa (Medicago sativa L.)”
Claim · model-written summary
The authors suggest combined Si and PF9 for improving alfalfa growth under low P.
- Taxon
- alfalfaMedicago sativae0
- Interactor
- P. alkylphenolica PF9 strainPseudomonas alkylphenolicae0symbiont
- Outcome
- combined application of Si and P. alkylphenolica PF9 strain could be a promising way for improving growth of alfalfa under low-P availabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our findings suggest that the combined application of Si and P. alkylphenolica PF9 strain could be a promising way for improving growth of alfalfa under low-P availability.”
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See all 137 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.