Abstract
Drought serves as an important abiotic factor influencing plant growth and constraining agricultural progress. Ammopiptanthus mongolicus (Maxim. ex Kom.) Cheng f., a vital plant for afforestation and medicine in the deserts of northwestern China, frequently exhibits extensive root colonization by dark septate endophytes (DSE), while their precise role of DSEs in drought mitigation for A. mongolicus remains ambiguous. This study investigated the effects of DSE symbiosis ( Gaeumannomyces hyphopodioides , Paraphoma radicina , and Magnaporthiopsis agrostidis ) on the physiological and morphological changes in A. mongolicus leaves through a simulated water limitation experiment. Drought decreased shoot biomass by 20.94 %; however, all DSE strains mitigated this growth inhibition, particularly G. hyphopodioides , which enhanced biomass by 39.41 %. DSE inoculation further improved photosynthetic efficiency, leading to increases in chlorophyll content, net photosynthetic rate ( Pn ), and stomatal conductance ( Gs ). Additionally, DSE symbiosis elevated antioxidant enzyme activity and osmotic compound levels, thereby mitigating drought damage. Anatomical analysis showed that G. hyphopodioides -inoculated plants maintained superior leaf structure under drought, with ultrastructural studies confirming the stability of chloroplasts and mitochondria. Variation partitioning further confirmed that DSE symbiosis is a primary factor influencing plant growth and morphological changes. Overall, our study concludes that DSE inoculation, particularly with G. hyphopodioides , could enhance the growth of A.mongolicus under conditions of drought stress through the modulation of leaf morphology and physiology characteristics. These findings confirm that DSE symbiosis can enhance the yield and cultivation of A. mongolicus in arid regions, which is crucial for the its community restoration and resource utilization. • DSE reduced the oxidative and osmotic stress damage of A.mongolicus under drought stress. • DSE maintained the integrity and stability of tissue structure under drought stress. • DSE increased the photosynthetic capacity and biomass of A.mongolicus under drought stress. • G.hyphopodioides inoculation can be used for A.mongolicus cultivation in dryland.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 8
Claim · model-written summary
Drought decreased shoot biomass by 20.94%.
Not reportedTaxonComparator
Verbatim
e0“Drought decreased shoot biomass by 20.94 %;”
Claim · model-written summary
Dark septate endophyte strains mitigated drought growth inhibition.
- Taxon
- Ammopiptanthus mongolicus
Ammopiptanthus mongolicust0 - Treatment
- DSE strainse0
- Interactor
- DSEe0symbiont
- Outcome
- growth inhibitione0
- Direction
- mitigatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“all DSE strains mitigated this growth inhibition”
Claim · model-written summary
G. hyphopodioides enhanced biomass by 39.41% under drought.
- Taxon
- Ammopiptanthus mongolicusAmmopiptanthus mongolicust0
- Treatment
- G. hyphopodioidese0
- Interactor
- G. hyphopodioidesGaeumannomyces hyphopodioidese0symbiont
- Outcome
- biomasse0
- Direction
- enhancede0
- Value
- 39.41 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“particularly G. hyphopodioides , which enhanced biomass by 39.41 %.”
Claim · model-written summary
DSE inoculation increased chlorophyll content, photosynthetic rate and stomatal conductance.
- Taxon
- Ammopiptanthus mongolicusAmmopiptanthus mongolicust0
- Treatment
- DSE inoculatione0
- Interactor
- DSEe0symbiont
- Outcome
- chlorophyll content, net photosynthetic rate ( Pn ), and stomatal conductance ( Gs )e0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“DSE inoculation further improved photosynthetic efficiency, leading to increases in chlorophyll content, net photosynthetic rate ( Pn ), and stomatal conductance ( Gs ).”
Claim · model-written summary
DSE symbiosis elevated antioxidant enzyme activity and osmotic compound levels.
- Taxon
- Ammopiptanthus mongolicusAmmopiptanthus mongolicust0
- Treatment
- DSE symbiosise0
- Interactor
- DSEe0symbiont
- Outcome
- antioxidant enzyme activity and osmotic compound levelse0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“DSE symbiosis elevated antioxidant enzyme activity and osmotic compound levels, thereby mitigating drought damage.”
Claim · model-written summary
G. hyphopodioides inoculated plants maintained superior leaf structure under drought.
- Taxon
- Ammopiptanthus mongolicusAmmopiptanthus mongolicust0
- Treatment
- G. hyphopodioides -inoculatede0
- Interactor
- G. hyphopodioidesGaeumannomyces hyphopodioidese0symbiont
- Outcome
- leaf structuree0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“G. hyphopodioides -inoculated plants maintained superior leaf structure under drought”
Claim · model-written summary
Chloroplast and mitochondria structure remained stable in inoculated leaves.
- Taxon
- Ammopiptanthus mongolicusAmmopiptanthus mongolicust0
- Outcome
- stability of chloroplasts and mitochondriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“ultrastructural studies confirming the stability of chloroplasts and mitochondria.”
Claim · model-written summary
Variation partitioning identified DSE symbiosis as a primary factor for growth and morphology.
- Taxon
- Ammopiptanthus mongolicusAmmopiptanthus mongolicust0
- Interactor
- DSEe0symbiont
- Outcome
- plant growth and morphological changese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Ammopiptanthus mongolicus”
e0“DSE symbiosis is a primary factor influencing plant growth and morphological changes.”
The same questions in other papers
drought · growth · Ammopiptanthus mongolicusResults agree
1 paper in the same direction as this paper
- negative
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.