Abstract
Abstract Sorghum has good adaptability to drought stress conditions, but its early vegetative phase and the generative phase are susceptible to stress. Understanding the physiological response of plants under drought and mechanisms regulating drought tolerance in a plant, mediated by arbuscular mycorrhizal fungi (AMF) will be useful in developing a strategy to deal with drought. Here, a pot experiment was used to explore the growth performance, biomass production and physiological responses of two sorghum accessions (4183A and JP-1) inoculated by the AMF under drought stress, as well as the effect of AMF on soil enzyme and microbial stability. Based on growth observations, the AMF inoculation treatment had not significant effect on increasing the drought resistance of the two sorghum accessions. Drought stress decreased the rate of height increment for 4183A, and JP-1 accessions by 37% and 55%, respectively, compared to normal conditions. Shoot dry weight and root dry weight losses were up to 59% and 66%, respectively, compared to well-watered conditions. However, the interaction of AMF and plants to deal with drought can be captured through physiological response, particularly proline accumulation. AMF inoculation in JP-1 accession reduced proline accumulation (99.91 mM/leaf fresh weight) compared to non-AMF inoculated plants (149.86 mM/leaf fresh weight). It can be implied that mycorrhiza can reduce plant stress. In contrast to accession 4183A, there was an increase in the accumulation of proline in plants inoculated with mycorrhiza under drought conditions. Additionally, AMF inoculation improved acid phosphatase activity in the soil and proved crucial for maintaining the stability of the rhizosphere microorganisms under drought-stressed conditions.
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Claims 9
Claim · model-written summary
AMF inoculation did not significantly increase drought resistance of either accession.
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- drought resistancee0
- Direction
- had not significant effecte0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the AMF inoculation treatment had not significant effect on increasing the drought resistance of the two sorghum accessions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
Drought reduced height increment in 4183A by 37%.
- Material
- 4183Ae0
- Treatment
- Drought stresse0
- Outcome
- rate of height incremente0
- Direction
- decreasede0
- Value
- 37%e0
- Comparator
- normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress decreased the rate of height increment for 4183A, and JP-1 accessions by 37% and 55%, respectively, compared to normal conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
Drought reduced height increment in JP-1 by 55%.
- Material
- JP-1e0
- Treatment
- Drought stresse0
- Outcome
- rate of height incremente0
- Direction
- decreasede0
- Value
- 55%e0
- Comparator
- normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress decreased the rate of height increment for 4183A, and JP-1 accessions by 37% and 55%, respectively, compared to normal conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
Shoot dry weight loss under drought reached 59%.
- Treatment
- droughtt0
- Outcome
- Shoot dry weighte0
- Direction
- lossese0
- Value
- 59%e0
- Comparator
- well-watered conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry weight and root dry weight losses were up to 59% and 66%, respectively, compared to well-watered conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
Root dry weight loss under drought reached 66%.
- Treatment
- droughtt0
- Outcome
- root dry weighte0
- Direction
- lossese0
- Value
- 66%e0
- Comparator
- well-watered conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot dry weight and root dry weight losses were up to 59% and 66%, respectively, compared to well-watered conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
AMF inoculation reduced JP-1 proline accumulation to 99.91 mM/leaf fresh weight versus 149.86 in uninoculated plants.
- Material
- JP-1e0
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- proline accumulatione0
- Direction
- reducede0
- Value
- 99.91 mM/leaf fresh weighte0
- Qualifier
- 149.86 mM/leaf fresh weighte0
- Comparator
- non-AMF inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation in JP-1 accession reduced proline accumulation (99.91 mM/leaf fresh weight) compared to non-AMF inoculated plants (149.86 mM/leaf fresh weight)”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
Mycorrhizal inoculation increased proline accumulation in 4183A under drought.
- Material
- 4183Ae0
- Treatment
- inoculated with mycorrhizae0
- Interactor
- mycorrhizae0symbiont
- Outcome
- accumulation of prolinee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In contrast to accession 4183A, there was an increase in the accumulation of proline in plants inoculated with mycorrhiza under drought conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
AMF inoculation improved soil acid phosphatase activity under drought.
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- acid phosphatase activity in the soile0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation improved acid phosphatase activity in the soil and proved crucial for maintaining the stability of the rhizosphere microorganisms under drought-stressed conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
Claim · model-written summary
AMF inoculation maintained rhizosphere microbial stability under drought.
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- stability of the rhizosphere microorganismse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation improved acid phosphatase activity in the soil and proved crucial for maintaining the stability of the rhizosphere microorganisms under drought-stressed conditions”
t0“Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress”
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See all 5 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.