Abstract
In this study, we hypothesized that colonization of olive trees (Olea europaea L.) with the arbuscular mycorrhizal fungus Rhizophagus irregularis could modify the profiles of rhizosphere microbial communities with subsequent effects on nutrient uptake that directly affects olive tree physiology and performance. In this context, a greenhouse experiment was carried out in order to study the effects of mycorrhizal colonization by R. irregularis on photosynthesis, pigment content, carbohydrate profile, and nutrient uptake in olive tree. After six months of growth, photosynthetic rate in mycorrhizal (M) plants was significantly higher than that of nonmycorrhizal plants. A sugar content analysis showed enhanced concentrations of mannitol, fructose, sucrose, raffinose, and trehalose in M roots. We also observed a significant increase in P, K, Ca, Mg, Zn, Fe, and Mn contents in leaves of the M plants. These results are important, since nutrient deficiency often occurs in Mediterranean semiarid ecosystems, where olive trees occupy a major place.
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Claims 6
Claim · model-written summary
Mycorrhizal olive plants had significantly higher photosynthetic rate after six months than nonmycorrhizal plants.
- Taxon
- Olea europaea L.
Olea europaeat0 - Treatment
- mycorrhizal colonization by R. irregularise1
- Interactor
- R. irregularis
Rhizophagus irregularise1symbiont - Outcome
- photosynthetic ratee0
- Direction
- highere0
- Comparator
- nonmycorrhizal plantse0
- Setting
- greenhousee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After six months of growth, photosynthetic rate in mycorrhizal (M) plants was significantly higher than that of nonmycorrhizal plants.”
e1“a greenhouse experiment was carried out in order to study the effects of mycorrhizal colonization by R. irregularis”
t0“Olea europaea L.”
Claim · model-written summary
Mycorrhizal olive roots had enhanced mannitol, fructose and sucrose concentrations.
- Taxon
- Olea europaea L.Olea europaeat0
- Organ / stage
- rootse0
- Treatment
- mycorrhizal colonization by R. irregularise1
- Interactor
- R. irregularisRhizophagus irregularise1symbiont
- Outcome
- concentrations of mannitol, fructose, sucrosee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A sugar content analysis showed enhanced concentrations of mannitol, fructose, sucrose, raffinose, and trehalose in M roots.”
e1“mycorrhizal colonization by R. irregularis”
t0“Olea europaea L.”
Claim · model-written summary
Mycorrhizal olive roots had enhanced raffinose and trehalose concentrations.
- Taxon
- Olea europaea L.Olea europaeat0
- Organ / stage
- rootse0
- Treatment
- mycorrhizal colonization by R. irregularise1
- Interactor
- R. irregularisRhizophagus irregularise1symbiont
- Outcome
- raffinose, and trehalosee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A sugar content analysis showed enhanced concentrations of mannitol, fructose, sucrose, raffinose, and trehalose in M roots.”
e1“mycorrhizal colonization by R. irregularis”
t0“Olea europaea L.”
Claim · model-written summary
Mycorrhizal olive leaves had significantly increased P, K and Ca contents.
- Taxon
- Olea europaea L.Olea europaeat0
- Organ / stage
- leavese0
- Treatment
- mycorrhizal colonization by R. irregularise1
- Interactor
- R. irregularisRhizophagus irregularise1symbiont
- Outcome
- P, K, Cae0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We also observed a significant increase in P, K, Ca, Mg, Zn, Fe, and Mn contents in leaves of the M plants.”
e1“mycorrhizal colonization by R. irregularis”
t0“Olea europaea L.”
Claim · model-written summary
Mycorrhizal olive leaves had significantly increased Mg, Zn and Fe contents.
- Taxon
- Olea europaea L.Olea europaeat0
- Organ / stage
- leavese0
- Treatment
- mycorrhizal colonization by R. irregularise1
- Interactor
- R. irregularisRhizophagus irregularise1symbiont
- Outcome
- Mg, Zn, Fee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We also observed a significant increase in P, K, Ca, Mg, Zn, Fe, and Mn contents in leaves of the M plants.”
e1“mycorrhizal colonization by R. irregularis”
t0“Olea europaea L.”
Claim · model-written summary
Mycorrhizal olive leaves had significantly increased Mn contents.
- Taxon
- Olea europaea L.Olea europaeat0
- Organ / stage
- leavese0
- Treatment
- mycorrhizal colonization by R. irregularise1
- Interactor
- R. irregularisRhizophagus irregularise1symbiont
- Outcome
- Mn contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We also observed a significant increase in P, K, Ca, Mg, Zn, Fe, and Mn contents in leaves of the M plants.”
e1“mycorrhizal colonization by R. irregularis”
t0“Olea europaea L.”
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mycorrhiza · physiology: photosynthesis · Olea europaea (common olive)Results agree
3 papers in the same direction as this paper
- positive
- 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.