Abstract
The effects of experimental warming on the growth and physiology of grass Elymus nutans and forb Potentilla anserina were studied by using open-top chambers (OTCs) in an alpine meadow of the eastern Tibetan Plateau. The warming treatment increased mean air and soil surface temperatures by 1.53°C and 0.50°C, respectively, but it reduced soil relative water content in the surface layer. Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina. Experimental warming resulted in an increased efficiency of photosystem II (PSII) in E. nutans, while decreasing it in P. anserina; significantly stimulated non-photochemical quenching, antioxidative enzymes and non-enzymes in both species; and significantly reduced malondialdehyde content in E. nutans, while promoting it in P. anserina. The results of this study indicated that the two species showed different growth responses to experimental warming and their different physiological performances further indicated that experimental warming alleviated the negative effect of low temperature on the growth and development of E. nutans, but limited the competitive ability of P. anserina in the study region.
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Claims 12
Claim · model-written summary
Experimental warming increased mean air and soil surface temperatures by 1.53 °C in the alpine meadow.
- Taxon
- Elymus nutans and forb Potentilla anserina
Argentina anserinaCampeiostachys nutanse0 - Treatment
- warming treatmente1
- Outcome
- mean air and soil surface temperaturese1
- Direction
- increasede1
- Value
- 1.53°Ce1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“The warming treatment increased mean air and soil surface temperatures by 1.53°C and 0.50°C, respectively, but it reduced soil relative water content in the surface layer”
Claim · model-written summary
Experimental warming reduced soil relative water content in the surface layer of the meadow.
- Taxon
- Elymus nutans and forb Potentilla anserinaArgentina anserinaCampeiostachys nutanse0
- Treatment
- warming treatmente1
- Outcome
- soil relative water content in the surface layere1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“The warming treatment increased mean air and soil surface temperatures by 1.53°C and 0.50°C, respectively, but it reduced soil relative water content in the surface layer”
Claim · model-written summary
Experimental warming enhanced the growth and gas exchange of Elymus nutans.
- Taxon
- E. nutansCampeiostachys nutanse1
- Treatment
- Experimental warminge1
- Outcome
- growth and gas exchangee1
- Direction
- enhancede1
Not reportedComparator
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
Claim · model-written summary
Experimental warming reduced the growth and gas exchange of Potentilla anserina.
- Taxon
- P. anserinaArgentina anserinae1
- Treatment
- Experimental warminge1
- Outcome
- growth and gas exchangee1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
Claim · model-written summary
Experimental warming increased the efficiency of photosystem II in Elymus nutans.
- Taxon
- E. nutansCampeiostachys nutanse1
- Treatment
- Experimental warminge1
- Outcome
- efficiency of photosystem II (PSII)e1
- Direction
- increasede1
Not reportedComparator
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming resulted in an increased efficiency of photosystem II (PSII) in E. nutans, while decreasing it in P. anserina”
Claim · model-written summary
Experimental warming decreased the efficiency of photosystem II in Potentilla anserina.
- Taxon
- P. anserinaArgentina anserinae1
- Treatment
- Experimental warminge1
- Outcome
- efficiency of photosystem II (PSII)e1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming resulted in an increased efficiency of photosystem II (PSII) in E. nutans, while decreasing it in P. anserina”
Claim · model-written summary
Experimental warming significantly stimulated non-photochemical quenching, antioxidative enzymes and non-enzymes in Elymus nutans.
- Taxon
- Elymus nutansCampeiostachys nutanse0
- Treatment
- Experimental warminge1
- Outcome
- non-photochemical quenching, antioxidative enzymes and non-enzymese2
- Direction
- stimulatede2
Not reportedComparator
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
e2“significantly stimulated non-photochemical quenching, antioxidative enzymes and non-enzymes in both species”
Claim · model-written summary
Experimental warming significantly stimulated non-photochemical quenching, antioxidative enzymes and non-enzymes in Potentilla anserina.
- Taxon
- Potentilla anserinaArgentina anserinae0
- Treatment
- Experimental warminge1
- Outcome
- non-photochemical quenching, antioxidative enzymes and non-enzymese2
- Direction
- stimulatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
e2“significantly stimulated non-photochemical quenching, antioxidative enzymes and non-enzymes in both species”
Claim · model-written summary
Experimental warming significantly reduced malondialdehyde content in Elymus nutans.
- Taxon
- E. nutansCampeiostachys nutanse2
- Treatment
- Experimental warminge1
- Outcome
- malondialdehyde contente2
- Direction
- reducede2
Not reportedComparator
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
e2“significantly reduced malondialdehyde content in E. nutans, while promoting it in P. anserina”
Claim · model-written summary
Experimental warming significantly promoted malondialdehyde content in Potentilla anserina.
- Taxon
- P. anserinaArgentina anserinae2
- Treatment
- Experimental warminge1
- Outcome
- malondialdehyde contente2
- Direction
- promotinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
e2“significantly reduced malondialdehyde content in E. nutans, while promoting it in P. anserina”
Claim · model-written summary
Experimental warming alleviated the negative effect of low temperature on growth and development of Elymus nutans (author interpretation).
- Taxon
- E. nutansCampeiostachys nutanse2
- Treatment
- experimental warminge2
- Outcome
- growth and developmente2
- Direction
- alleviatede2
- Qualifier
- negative effect of low temperaturee2
Not reportedComparator
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
e2“experimental warming alleviated the negative effect of low temperature on the growth and development of E. nutans”
Claim · model-written summary
Experimental warming limited the competitive ability of Potentilla anserina in the study region (author interpretation).
- Taxon
- P. anserinaArgentina anserinae2
- Treatment
- Experimental warminge1
- Outcome
- competitive abilitye2
- Direction
- limitede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grass Elymus nutans and forb Potentilla anserina”
e1“Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina”
e2“limited the competitive ability of P. anserina in the study region”
The same questions in other papers
heat · physiology: photosynthesis · Argentina anserina (silverweed cinquefoil)Positive and negative results
1 in the opposite direction
- positive
heat · physiology: photosynthesis · Campeiostachys nutansResults 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.