Abstract
Endophyte infection in tall fescue has been associated with greater P uptake. This study was designed to determine the influence of endophyte genotype on the ability of tall fescue to mobilize inorganic phosphorus (Pi) from four Pi sources (KH 2 PO 4 [K–Ps], FePO 4 [Fe–Ps], AlPO 4 [Al–Ps] and Ca 3 (PO 4 ) 2 [Ca–Ps]). Tall fescue infected with three different endophytes (CTE+, AR542E+, and AR584E+) and endophyte free (E–) were grown in growth media amended with four P sources at three P levels (control, low 0.31 mg/L, and high 31 mg/L) for 3 wk after which root system architecture, P uptake, and dry biomass were determined. The P source and P concentration had the most influence on plant growth and P uptake. Endophyte and the interaction between P source and endophyte strongly influenced shoot and total dry mass in P‐limiting conditions. Greater P uptake was found in plants grown with Ca–Ps compared to the other Pi sources and control treatments, regardless of P level and endophyte status. Endophyte‐infection, irrespective of type, resulted in more plant biomass (dry matter, DM) than non‐infected tall fescue in low K–P treatment. Longer roots, greater surface area and root/shoot ratio in high Fe–Ps level than those in other P treatments, but lower P uptake were observed, regardless of endophyte status. Morphological changes in the roots system of tall fescue due to endophyte infection were influenced by P source.
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Claims 7
Claim · model-written summary
P source and concentration most influenced tall fescue growth and P uptake.
- Taxon
- tall fescue
Lolium arundinaceumt0 - Treatment
- P source and P concentratione0
- Outcome
- plant growth and P uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P source and P concentration had the most influence on plant growth and P uptake.”
t0“Phosphate Source Interacts with Endophyte Strain to Influence Biomass and Root System Architecture in Tall Fescue”
Claim · model-written summary
Endophyte and P source interaction strongly influenced shoot and total dry mass under P limitation.
- Taxon
- tall fescueLolium arundinaceumt0
- Interactor
- Endophytee0symbiont
- Outcome
- shoot and total dry masse0
- Qualifier
- P‐limiting conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Endophyte and the interaction between P source and endophyte strongly influenced shoot and total dry mass in P‐limiting conditions.”
t0“Phosphate Source Interacts with Endophyte Strain to Influence Biomass and Root System Architecture in Tall Fescue”
Claim · model-written summary
Ca–Ps produced greater P uptake than other Pi sources and controls.
- Taxon
- tall fescueLolium arundinaceumt0
- Treatment
- Ca–Pse0
- Outcome
- P uptakee0
- Direction
- Greatere0
- Qualifier
- regardless of P level and endophyte statuse0
- Comparator
- other Pi sources and control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater P uptake was found in plants grown with Ca–Ps compared to the other Pi sources and control treatments, regardless of P level and endophyte status.”
t0“Phosphate Source Interacts with Endophyte Strain to Influence Biomass and Root System Architecture in Tall Fescue”
Claim · model-written summary
Endophyte infection increased tall fescue biomass in low K–P.
- Taxon
- tall fescueLolium arundinaceume0
- Treatment
- Endophyte‐infectione0
- Interactor
- Endophytee0symbiont
- Outcome
- plant biomasse0
- Direction
- moree0
- Qualifier
- low K–P treatmente0
- Comparator
- non‐infected tall fescuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Endophyte‐infection, irrespective of type, resulted in more plant biomass (dry matter, DM) than non‐infected tall fescue in low K–P treatment.”
Claim · model-written summary
High Fe–Ps increased root length, surface area and root/shoot ratio versus other P treatments.
- Taxon
- tall fescueLolium arundinaceumt0
- Treatment
- high Fe–Ps levele0
- Outcome
- Longer roots, greater surface area and root/shoot ratioe0
- Direction
- greatere0
- Comparator
- other P treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Longer roots, greater surface area and root/shoot ratio in high Fe–Ps level than those in other P treatments, but lower P uptake were observed, regardless of endophyte status.”
t0“Phosphate Source Interacts with Endophyte Strain to Influence Biomass and Root System Architecture in Tall Fescue”
Claim · model-written summary
High Fe–Ps lowered P uptake relative to other P treatments.
- Taxon
- tall fescueLolium arundinaceumt0
- Treatment
- high Fe–Ps levele0
- Outcome
- P uptakee0
- Direction
- lowere0
- Comparator
- other P treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Longer roots, greater surface area and root/shoot ratio in high Fe–Ps level than those in other P treatments, but lower P uptake were observed, regardless of endophyte status.”
t0“Phosphate Source Interacts with Endophyte Strain to Influence Biomass and Root System Architecture in Tall Fescue”
Claim · model-written summary
P source influenced root morphological changes associated with endophyte infection.
- Taxon
- tall fescueLolium arundinaceume0
- Treatment
- P sourcee0
- Interactor
- endophytee0symbiont
- Outcome
- Morphological changes in the roots systeme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological changes in the roots system of tall fescue due to endophyte infection were influenced by P source.”
The same questions in other papers
inoculation · growth · Lolium arundinaceum (tall fescue)Positive and negative results
14 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
14 papers more in this group
See all 18 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.