Abstract
The aim of this paper was to investigate the contribution of the arbuscular mycorrhizal fungus Glomus claroideum to drought stress tolerance in wheat plants grown under controlled conditions in a growth chamber, and subjected to moderate or severe water stress and rewatering. Water stress tolerance was determined through total dry weight, leaf relative water content, leakage of solutes and leaf chlorophyll and protein concentrations in mycorrhizal and non-mycorrhizal wheat plants. Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones. Electrolyte leakage was significantly lower in water-stressed inoculated plants. Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress. When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants. In conclusion, root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat.
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Claims 9
Claim · model-written summary
Mycorrhizal wheat had greater dry weight after moderate or severe water stress.
- Taxon
- wheat plants
Triticum aestivumt0 - Treatment
- mycorrhizal plantse0
- Outcome
- Total dry weighte0
- Direction
- highere0
- Qualifier
- moderate or severe water stress treatmentse0
- Comparator
- non-mycorrhizal onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
Mycorrhizal wheat had greater leaf chlorophyll after moderate or severe water stress.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- mycorrhizal plantse0
- Outcome
- leaf chlorophyll concentrationse0
- Direction
- highere0
- Qualifier
- moderate or severe water stress treatmentse0
- Comparator
- non-mycorrhizal onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
Inoculated water-stressed wheat had less electrolyte leakage.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- inoculated plantse0
- Outcome
- Electrolyte leakagee0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Electrolyte leakage was significantly lower in water-stressed inoculated plants”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
Inoculated wheat had greater leaf relative water content only under severe stress.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- inoculated individualse0
- Outcome
- leaf relative water contente0
- Direction
- increasede0
- Qualifier
- only under severe water stresse0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
Inoculated wheat had greater protein concentration only under severe stress.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- inoculated individualse0
- Outcome
- total protein concentratione0
- Direction
- increasede0
- Qualifier
- only under severe water stresse0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
After rewatering, mycorrhizal wheat gained dry weight relative to nonmycorrhizal plants.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- mycorrhizal plantse0
- Outcome
- total dry weighte0
- Direction
- increasede0
- Qualifier
- When irrigation was re-establishede0
- Comparator
- non-mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
After rewatering, mycorrhizal wheat gained leaf chlorophyll relative to nonmycorrhizal plants.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- mycorrhizal plantse0
- Outcome
- leaf chlorophyll concentratione0
- Direction
- increasede0
- Comparator
- non-mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
After rewatering, mycorrhizal wheat recovered leaf membrane permeability relative to nonmycorrhizal plants.
- Taxon
- wheat plantsTriticum aestivumt0
- Treatment
- mycorrhizal plantse0
- Outcome
- cell membrane permeability in leavese0
- Direction
- recoverede0
- Comparator
- non-mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants”
t0“wheat plants (Triticum aestivum L.)”
Claim · model-written summary
The authors propose root colonization as a strategy to alleviate drought damage and delay senescence.
- Taxon
- wheat plantsTriticum aestivumt0
- Interactor
- G. claroideumEntrophospora claroideae0symbiont
- Outcome
- adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndromee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat”
t0“wheat plants (Triticum aestivum L.)”
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