Abstract
The issue of drought resulting from global warming has prompted plants to exhibit appropriate stress tolerance strategies in response to environmental changes. Water use efficiency is of particular significance in the context of drought stress. Plants displaying higher water use efficiency accumulates greater dry matter (negative δ13C values), photosynthesizing more efficiently, and resisting drought stress more effectively. Such plants have sufficient potential for community succession. The objective of this study was to investigate the changes in bermudagrass among different indicators under different degrees of drought, and the relationship between them. Additionally, the correlation between leaf δ13C and latitude among climate change was explored. The findings indicated that the germplasm resources in high-latitude regions exhibited robust drought tolerance, attributable to the prevailing environmental conditions, including limited precipitation, water scarcity, ample sunshine, and low temperatures. Among mild (soil moisture content of 55 ± 5%), moderate (soil water content of 35 ± 5%), and severe drought (soil moisture content of 25 ± 5%), the moderate conditions showed an increased growth. Under drought conditions, the dehydrin gene exhibited high expression levels in the low latitude region (Zhongshan), while the CdL96, COP1 and CdL79 genes demonstrated high expression levels in the high latitude region (Xinyang), and the CdL44 gene exhibited high expression levels in the middle latitude region (Linxiang), indicating that the germplasm resources in the high latitude region have stronger drought adaptability. • Photosynthetic efficiency • leaf carbon isotope • Water use efficiency • Water deficit conditions • Latitudinal bermudagrass • Gene expression
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Claims 7
Claim · model-written summary
High-latitude germplasm showed robust drought tolerance.
- Taxon
- bermudagrass
Cynodon dactylont0 - Material
- germplasm resources in high-latitude regionse0
- Outcome
- robust drought tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germplasm resources in high-latitude regions exhibited robust drought tolerance”
t0“bermudagrass”
Claim · model-written summary
Moderate drought increased growth among tested drought levels.
- Taxon
- bermudagrassCynodon dactylont0
- Treatment
- moderate (soil water content of 35 ± 5%)e0
- Outcome
- growthe0
- Direction
- increasede0
- Comparator
- mild (soil moisture content of 55 ± 5%)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among mild (soil moisture content of 55 ± 5%), moderate (soil water content of 35 ± 5%), and severe drought (soil moisture content of 25 ± 5%), the moderate conditions showed an increased growth”
t0“bermudagrass”
Claim · model-written summary
The dehydrin gene had high expression in low-latitude Zhongshan under drought.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- dehydrin genee0
- Outcome
- expression levelse0
- Direction
- highe0
- Setting
- Zhongshane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought conditions, the dehydrin gene exhibited high expression levels in the low latitude region (Zhongshan)”
t0“bermudagrass”
Claim · model-written summary
CdL96 had high expression in high-latitude Xinyang under drought.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- CdL96e0
- Outcome
- expression levelse0
- Direction
- highe0
- Setting
- Xinyange0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CdL96, COP1 and CdL79 genes demonstrated high expression levels in the high latitude region (Xinyang)”
t0“bermudagrass”
Claim · model-written summary
COP1 had high expression in high-latitude Xinyang under drought.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- COP1e0
- Outcome
- expression levelse0
- Direction
- highe0
- Setting
- Xinyange0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CdL96, COP1 and CdL79 genes demonstrated high expression levels in the high latitude region (Xinyang)”
t0“bermudagrass”
Claim · model-written summary
CdL79 had high expression in high-latitude Xinyang under drought.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- CdL79e0
- Outcome
- expression levelse0
- Direction
- highe0
- Setting
- Xinyange0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CdL96, COP1 and CdL79 genes demonstrated high expression levels in the high latitude region (Xinyang)”
t0“bermudagrass”
Claim · model-written summary
CdL44 had high expression in middle-latitude Linxiang under drought.
- Taxon
- bermudagrassCynodon dactylont0
- Gene
- CdL44e0
- Outcome
- expression levelse0
- Direction
- highe0
- Setting
- Linxiange0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CdL44 gene exhibited high expression levels in the middle latitude region (Linxiang)”
t0“bermudagrass”
The same questions in other papers
soil water · growth · Cynodon dactylon (Bermuda grass)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.