Abstract
Mycorrhizal and non-mycorrhizal tomato plants ( Lycopersicon esculentum Mill. cv ‘Amalia’) were subjected to water stress by withholding irrigation water for 72 hours and then reirrigated for 120 hours. Water stress reduced root mycorrhizal colonization, although the presence of the fungus Glomus clarum stimulated tomato plant growth. During the stress period the effect on the growth was more pronounced in aerial biomass than in the root biomass. The decrease in the soil water potential generated a decrease in leaf water potential (Ψ l ) and leaf turgor potential (Ψ t ), particularly in the non-mycorrhizal plants. Although the absence of osmotic adjustment provoked the loss of turgor in stressed plants, both Ψ l and Ψ t recovered after a short reirrigation period. Mycorrhizal infection improved photosynthetic activity (P n ) and stomatal conductance (g s ) in non-stressed and stressed plants. These increases were accompanied by higher root hydraulic conductivity values, indicating enhanced water uptake in drought conditions. Neither P n nor g s fully recovered after rewatering. The beneficial effect of the mycorrhizal symbiosis on the water status of tomato plants stimulated plant growth.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Water stress reduced tomato root mycorrhizal colonization.
- Taxon
- tomato plants
Solanum lycopersicumt0 - Treatment
- Water stresse0
- Interactor
- Glomus clarumRhizophagus clarust0symbiont
- Outcome
- root mycorrhizal colonizatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced root mycorrhizal colonization”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Glomus clarum stimulated tomato plant growth.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- presence of the fungus Glomus clarume0
- Interactor
- Glomus clarumRhizophagus claruse0symbiont
- Outcome
- tomato plant growthe0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the presence of the fungus Glomus clarum stimulated tomato plant growth”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
During stress, the growth effect was more pronounced in aerial biomass than root biomass.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Organ / stage
- aerial biomasse0
- Outcome
- growthe0
- Direction
- more pronouncede0
- Comparator
- root biomasse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the stress period the effect on the growth was more pronounced in aerial biomass than in the root biomass.”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Decreasing soil water potential decreased leaf water potential, particularly in non-mycorrhizal plants.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- decrease in the soil water potentiale0
- Outcome
- leaf water potentiale0
- Direction
- decreasee0
- Qualifier
- particularly in the non-mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in the soil water potential generated a decrease in leaf water potential (Ψ l ) and leaf turgor potential (Ψ t ), particularly in the non-mycorrhizal plants.”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Decreasing soil water potential decreased leaf turgor potential, particularly in non-mycorrhizal plants.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- decrease in the soil water potentiale0
- Outcome
- leaf turgor potentiale0
- Direction
- decreasee0
- Qualifier
- particularly in the non-mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in the soil water potential generated a decrease in leaf water potential (Ψ l ) and leaf turgor potential (Ψ t ), particularly in the non-mycorrhizal plants.”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Stressed tomato plants lost turgor without osmotic adjustment.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Outcome
- loss of turgore0
- Qualifier
- absence of osmotic adjustmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the absence of osmotic adjustment provoked the loss of turgor in stressed plants”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Leaf water potential and turgor potential recovered after a short reirrigation period.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- reirrigatione0
- Outcome
- Ψ l and Ψ te0
- Direction
- recoverede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both Ψ l and Ψ t recovered after a short reirrigation period.”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Mycorrhizal infection improved photosynthetic activity and stomatal conductance under both water conditions.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- Mycorrhizal infectione0
- Interactor
- Glomus clarumRhizophagus clarust0symbiont
- Outcome
- photosynthetic activity (P n ) and stomatal conductance (g s )e0
- Direction
- improvede0
- Qualifier
- non-stressed and stressed plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mycorrhizal infection improved photosynthetic activity (P n ) and stomatal conductance (g s ) in non-stressed and stressed plants.”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
The mycorrhizal plants had higher root hydraulic conductivity.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Interactor
- Glomus clarumRhizophagus clarust0symbiont
- Outcome
- root hydraulic conductivitye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These increases were accompanied by higher root hydraulic conductivity values”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
Claim · model-written summary
Photosynthetic activity and stomatal conductance did not fully recover after rewatering.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- rewateringe0
- Outcome
- P n nor g se0
- Direction
- Neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither P n nor g s fully recovered after rewatering.”
t0“tomato plants associated with the arbuscular mycorrhizal fungus Glomus clarum”
The same questions in other papers
Rhizophagus clarus · growth · Solanum lycopersicum (tomato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
rewatering · physiology: photosynthesis · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
mycorrhiza · Rhizophagus clarus · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- 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.