Abstract
Bermudagrass (Cynodon dactylon) is a widely used warm-season turfgrass worldwide. However, bermudagrass often faces the challenges from drought stress in practical application. Selection and breeding of drought-tolerant cultivars of bermudagrass is crucial for thriving in arid environments. In this study, we employed two different drought-tolerant bermudagrass cultivars ‘Yangjiang’ and ‘Guanzhong’ to assess the morphology, physiology and transcriptome under various drought stress conditions. The outcomes unveiled that drought-tolerant ‘Guanzhong’ exhibited superiority in morphology, light utilization efficiency, relative water content, antioxidant and osmotic regulation capabilities compared to drought-susceptible ‘Yangjiang’. In addition, transcriptome sequencing showed that photosynthesis, amino acid metabolism, peroxisome and plant hormone signal transduction pathways were the key metabolic pathways of bermudagrass in response to drought stress. Compared to the drought-sensitive cultivar ‘Yangjiang’, the drought-tolerant ‘Guanzhong’ exhibited lower expression of AUX/IAA genes (negative regulators of auxin signaling), which reduces their inhibitory effect on auxin response factors (ARF), thereby enhancing auxin signaling efficiency to coordinate adaptive growth. Additionally, compared with ‘Yangjiang’, the down-regulated protein phosphatases (PP2C) in ‘Guanzhong’ weaken their suppression of SnRK2, resulting in heightened ABA signaling sensitivity. In comparison to ‘Yangjiang’, ‘Guanzhong’ displayed a higher IAA concentration and a lower ABA concentration under stress conditions, thus ensuring a more efficient utilization of water by minimizing stomatal aperture and reducing water evaporation. The results suggested that regulation of morphology, physiological metabolism and genes expression could contribute to drought tolerance in bermudagrass.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 11
Claim · model-written summary
Drought-tolerant Guanzhong showed superiority in morphology, light utilization efficiency and relative water content over drought-susceptible Yangjiang under drought stress.
- Taxon
- bermudagrass
Cynodon dactylont0 - Material
- Guanzhonge1
- Treatment
- drought stress conditionse2
- Outcome
- morphology, light utilization efficiency, relative water contente1
- Direction
- superioritye1
- Comparator
- drought-susceptible ‘Yangjiang’e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two bermudagrass cultivars differing in response to drought stress”
e1“drought-tolerant ‘Guanzhong’ exhibited superiority in morphology, light utilization efficiency, relative water content, antioxidant and osmotic regulation capabilities compared to drought-susceptible ‘Yangjiang’”
e2“under various drought stress conditions”
Claim · model-written summary
Drought-tolerant Guanzhong showed superiority in antioxidant and osmotic regulation capabilities over drought-susceptible Yangjiang under drought stress.
- Taxon
- bermudagrassCynodon dactylont0
- Material
- Guanzhonge1
- Treatment
- drought stress conditionse2
- Outcome
- antioxidant and osmotic regulation capabilitiese1
- Direction
- superioritye1
- Comparator
- drought-susceptible ‘Yangjiang’e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two bermudagrass cultivars differing in response to drought stress”
e1“drought-tolerant ‘Guanzhong’ exhibited superiority in morphology, light utilization efficiency, relative water content, antioxidant and osmotic regulation capabilities compared to drought-susceptible ‘Yangjiang’”
e2“under various drought stress conditions”
Claim · model-written summary
Transcriptome analysis identified photosynthesis, amino acid metabolism and peroxisome pathways as key metabolic pathways of bermudagrass under drought stress.
- Taxon
- bermudagrassCynodon dactylont0
- Treatment
- drought stresse3
- Outcome
- photosynthesis, amino acid metabolism, peroxisomee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e3“transcriptome sequencing showed that photosynthesis, amino acid metabolism, peroxisome and plant hormone signal transduction pathways were the key metabolic pathways of bermudagrass in response to drought stress”
Claim · model-written summary
Transcriptome analysis identified plant hormone signal transduction pathways as a key metabolic pathway of bermudagrass under drought stress.
- Taxon
- bermudagrassCynodon dactylont0
- Treatment
- drought stresse3
- Outcome
- plant hormone signal transduction pathwayse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e3“transcriptome sequencing showed that photosynthesis, amino acid metabolism, peroxisome and plant hormone signal transduction pathways were the key metabolic pathways of bermudagrass in response to drought stress”
Claim · model-written summary
Guanzhong has lower expression of AUX/IAA genes than drought-sensitive Yangjiang.
- Taxon
- bermudagrassCynodon dactylont0
- Material
- Guanzhonge4
- Gene
- AUX/IAA genese4
- Outcome
- expression of AUX/IAA genese4
- Direction
- lowere4
- Comparator
- drought-sensitive cultivar ‘Yangjiang’e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e4“Compared to the drought-sensitive cultivar ‘Yangjiang’, the drought-tolerant ‘Guanzhong’ exhibited lower expression of AUX/IAA genes (negative regulators of auxin signaling), which reduces their inhibitory effect on auxin response factors (ARF), thereby enhancing auxin signaling efficiency to coordinate adaptive growth”
Claim · model-written summary
Lower AUX/IAA expression is proposed to enhance auxin signaling efficiency in Guanzhong.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- AUX/IAA genese4
- Outcome
- auxin signaling efficiencye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e4“Compared to the drought-sensitive cultivar ‘Yangjiang’, the drought-tolerant ‘Guanzhong’ exhibited lower expression of AUX/IAA genes (negative regulators of auxin signaling), which reduces their inhibitory effect on auxin response factors (ARF), thereby enhancing auxin signaling efficiency to coordinate adaptive growth”
Claim · model-written summary
Down-regulated PP2C in Guanzhong is proposed to weaken SnRK2 suppression and heighten ABA signaling sensitivity.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- protein phosphatases (PP2C)e5
- Outcome
- ABA signaling sensitivitye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e5“Additionally, compared with ‘Yangjiang’, the down-regulated protein phosphatases (PP2C) in ‘Guanzhong’ weaken their suppression of SnRK2, resulting in heightened ABA signaling sensitivity”
Claim · model-written summary
Guanzhong displayed a higher IAA concentration than Yangjiang under stress conditions.
- Taxon
- bermudagrassCynodon dactylont0
- Material
- Guanzhonge6
- Treatment
- stress conditionse6
- Compound
- IAAe6
- Outcome
- IAA concentratione6
- Direction
- highere6
- Comparator
- Yangjiange6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e6“In comparison to ‘Yangjiang’, ‘Guanzhong’ displayed a higher IAA concentration and a lower ABA concentration under stress conditions”
Claim · model-written summary
Guanzhong displayed a lower ABA concentration than Yangjiang under stress conditions.
- Taxon
- bermudagrassCynodon dactylont0
- Material
- Guanzhonge6
- Treatment
- stress conditionse6
- Compound
- ABAe6
- Outcome
- ABA concentratione6
- Direction
- lowere6
- Comparator
- Yangjiange6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e6“In comparison to ‘Yangjiang’, ‘Guanzhong’ displayed a higher IAA concentration and a lower ABA concentration under stress conditions”
Claim · model-written summary
Guanzhong is proposed to use water more efficiently by minimizing stomatal aperture and reducing water evaporation.
- Taxon
- bermudagrassCynodon dactylont0
- Outcome
- utilization of watere7
- Qualifier
- minimizing stomatal aperture and reducing water evaporatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Morphophysiological responses and gene regulation of two bermudagrass cultivars differing in response to drought stress”
e7“thus ensuring a more efficient utilization of water by minimizing stomatal aperture and reducing water evaporation”
Claim · model-written summary
Regulation of morphology, physiological metabolism and gene expression could contribute to drought tolerance in bermudagrass.
- Taxon
- bermudagrassCynodon dactylone0
- Outcome
- drought tolerancee0
- Qualifier
- regulation of morphology, physiological metabolism and genes expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results suggested that regulation of morphology, physiological metabolism and genes expression could contribute to drought tolerance in bermudagrass”
The same questions in other papers
drought · molecular: metabolites · Cynodon dactylon (Bermuda grass)Positive and negative results
3 in the opposite direction
- no effect
- negative
- negative
drought · physiology: water · Cynodon dactylon (Bermuda grass)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 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.