Abstract
Abstract A major challenge for agriculture is to provide sufficient plant nutrients such as phosphorus (P) to meet the global food demand. The sufficiency of P is a concern because of it’s essential role in plant growth, the finite availability of P-rock for fertilizer production and the poor plant availability of soil P. This study investigated whether biofertilizers and bioenhancers, such as arbuscular mycorrhizal fungi (AMF) and their associated bacteria could enhance growth and P uptake in maize. Plants were grown with or without mycorrhizas in compartmented pots with radioactive P tracers and were inoculated with each of 10 selected bacteria isolated from AMF spores. Root colonization by AMF produced large plant growth responses, while seven bacterial strains further facilitated root growth and P uptake by promoting the development of AMF extraradical mycelium. Among the tested strains, Streptomyces sp. W94 produced the largest increases in uptake and translocation of 33 P, while Streptomyces sp. W77 highly enhanced hyphal length specific uptake of 33 P. The positive relationship between AMF-mediated P absorption and shoot P content was significantly influenced by the bacteria inoculants and such results emphasize the potential importance of managing both AMF and their microbiota for improving P acquisition by crops.
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Claims 7
Claim · model-written summary
Root colonization by AMF produced large plant growth responses in maize.
- Treatment
- Root colonization by AMFe2
- Interactor
- AMFe2symbiont
- Outcome
- plant growth responsese2
- Direction
- increaseinferrede2
- Comparator
- without mycorrhizase1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e1“Plants were grown with or without mycorrhizas in compartmented pots”
e2“Root colonization by AMF produced large plant growth responses”
Claim · model-written summary
Seven bacterial strains facilitated root growth and P uptake in maize.
- Treatment
- bacterial strainse3
- Interactor
- bacterial strainse3symbiont
- Outcome
- root growth and P uptakee3
- Direction
- facilitatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e3“seven bacterial strains further facilitated root growth and P uptake by promoting the development of AMF extraradical mycelium”
Claim · model-written summary
Seven bacterial strains promoted the development of AMF extraradical mycelium in maize.
- Treatment
- bacterial strainse3
- Interactor
- AMFe3symbiont
- Second interactor
- bacterial strainse3symbiont
- Outcome
- development of AMF extraradical myceliume3
- Direction
- promotinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e3“seven bacterial strains further facilitated root growth and P uptake by promoting the development of AMF extraradical mycelium”
Claim · model-written summary
Streptomyces sp. W94 produced the largest increases in uptake and translocation of 33 P among the tested strains.
- Treatment
- Streptomyces sp. W94e4
- Interactor
- Streptomyces sp. W94
Streptomyces sp. W94e4symbiont - Outcome
- uptake and translocation of 33 Pe4
- Direction
- largest increasese4
- Comparator
- tested strainse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e4“Among the tested strains, Streptomyces sp. W94 produced the largest increases in uptake and translocation of 33 P”
Claim · model-written summary
Streptomyces sp. W77 highly enhanced hyphal length specific uptake of 33 P.
- Treatment
- Streptomyces sp. W77e5
- Interactor
- Streptomyces sp. W77Streptomyces sp. W77e5symbiont
- Outcome
- hyphal length specific uptake of 33 Pe5
- Direction
- enhancede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e5“Streptomyces sp. W77 highly enhanced hyphal length specific uptake of 33 P”
Claim · model-written summary
The positive relationship between AMF-mediated P absorption and shoot P content was significantly influenced by the bacterial inoculants.
- Treatment
- bacteria inoculantse6
- Interactor
- AMFe6symbiont
- Outcome
- relationship between AMF-mediated P absorption and shoot P contente6
- Direction
- positivee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e6“The positive relationship between AMF-mediated P absorption and shoot P content was significantly influenced by the bacteria inoculants”
Claim · model-written summary
Managing both AMF and their microbiota is recommended for improving P acquisition by crops.
- Outcome
- managing both AMF and their microbiotae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Facilitation of phosphorus uptake in maize plants”
e7“such results emphasize the potential importance of managing both AMF and their microbiota for improving P acquisition by crops”
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