Influence of simulated warming using OTC on physiological–biochemical characteristics of Elymus nutans in alpine meadow on Qinghai-Tibetan plateau

Ren, Fei; Zhou, Huakun; Zhao, Xinquan; Han, Fuzhu; Shi, Lina; Duan, Jianan; Zhao, Jianzhong

doi:10.1016/j.chnaes.2010.04.007

Cited by 23 publications

(16 citation statements)

References 17 publications

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“…The chlorophyll content can determine photosynthesis and plant growth. A few studies reported that elevated temperature did not affect or decreased [ 40 – 41 ] the plant chlorophyll concentration. Previous study found that warming significantly increased the chlorophyll contents of Picea asperata and Pinus tabulaeformis [ 11 ].…”

Section: Discussionmentioning

confidence: 99%

Warming and Nitrogen Addition Alter Photosynthetic Pigments, Sugars and Nutrients in a Temperate Meadow Ecosystem

et al. 2016

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Global warming and nitrogen (N) deposition have an important influence on terrestrial ecosystems; however, the influence of warming and N deposition on plant photosynthetic products and nutrient cycling in plants is not well understood. We examined the effects of 3 years of warming and N addition on the plant photosynthetic products, foliar chemistry and stoichiometric ratios of two dominant species, i.e., Leymus chinensis and Phragmites communis, in a temperate meadow in northeastern China. Warming significantly increased the chlorophyll content and soluble sugars in L. chinensis but had no impact on the carotenoid and fructose contents. N addition caused a significant increase in the carotenoid and fructose contents. Warming and N addition had little impact on the photosynthetic products of P. communis. Warming caused significant decreases in the N and phosphorus (P) concentrations and significantly increased the carbon (C):P and N:P ratios of L. chinensis, but not the C concentration or the C:N ratio. N addition significantly increased the N concentration, C:P and N:P ratios, but significantly reduced the C:N ratio of L. chinensis. Warming significantly increased P. communis C and P concentrations, and the C:N and C:P ratios, whereas N addition increased the C, N and P concentrations but had no impact on the stoichiometric variables. This study suggests that both warming and N addition have direct impacts on plant photosynthates and elemental stoichiometry, which may play a vital role in plant-mediated biogeochemical cycling in temperate meadow ecosystems.

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Section: Discussionmentioning

confidence: 99%

Warming and Nitrogen Addition Alter Photosynthetic Pigments, Sugars and Nutrients in a Temperate Meadow Ecosystem

et al. 2016

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“…Some scholars have found that warming could cause no obvious impact on plant chlorophyll concentrations (Ren et al, 2010). In this study, we found that warming significantly decreased the chlorophyll content of L. secalimus.…”

Section: Warming and N Deposition Alter Leaf N Content And Thus Inflmentioning

confidence: 44%

Effects of Warming and N Deposition on the Physiological Performances of Leymus secalinus in Alpine Meadow of Qinghai-Tibetan Plateau

Shen

Dong

et al. 2020

Front. Plant Sci.

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Warming and Nitrogen (N) deposition are key global changes that may affect ecophysiological process of territorial plants. In this paper, we examined the effects of warming, N deposition, and their combination effect on the physiological performances of Leymus secalinus. Four treatments were established in an alpine meadow of Qinghai-Tibetan plateau: control (CK), warming (W), N deposition (N), and warming plus N deposition (NW). Warming significantly decreased the photosynthetic rate (A net), stomatal conductance (g s), intercellular CO 2 concentration (C i), and transpiration rate (T r), while N deposition and warming plus N deposition significantly increased those parameters of L. secalinus. Warming significantly increased the VPD and L s , while N deposition and warming plus N deposition had a significant positive effect. Warming negatively reduced the leaf N content, Chla, Chlb, and total Chl content, while N deposition significantly promoted these traits. Warming, N deposition, and their combination significantly increased the activity of SOD, POD, and CAT. Besides, warming and warming plus N deposition significantly increased the MDA content, while N deposition significantly decreased the MDA content. N deposition and warming plus N deposition significantly increased the Rubisco activity, while warming showed no significant effect on Rubisco activity. N deposition and warming plus N deposition significantly increased the Fv/Fm, FPSII, qP, and decreased NPQ, while warming significantly decreased the Fv/Fm, FPSII, qP, and increased NPQ. N deposition strengthened the relations between g s , Chl, Chla, Chlb, Rubisco activity, and A net. Under warming, only g s showed a significantly positive relation with A net. Our findings suggested that warming could impair the photosynthetic potential of L. secalinus

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“…First, as a hemiparasitic plant it may decrease the host plant's fitness by reducing the available resources for growth and reproduction (Marvier, 1996;Salonen and Lammi, 2001;Jiang et al, 2003;Lehtonen et al, 2005;Yoder et al, 2009;Hautier et al, 2010;Ren et al, 2010aRen et al, ,2010bSui et al, 2014;Bao et al, 2015). Second, it can release root exudates that have allelopathic effects on the seed germination and seedling growth of neighboring Pooideae grasses (Wei, 2010;Bao and Wang, 2011;Shang and Xu, 2012).…”

Section: Introductionmentioning

confidence: 96%

“…Plant growth in the area is limited by two main factors related to the climate: low temperatures and short growing season (Ren et al, 2010a(Ren et al, ,2010bLi et al, 2013). Annual temperature and precipitation range from À1.37e5.5 C and 270e520 mm, respectively, and winter frost continues for 7 months from Oct. to May each year.…”

Section: Introductionmentioning

confidence: 99%

Does endophyte symbiosis resist allelopathic effects of an invasive plant in degraded grassland?

Bao

Saikkonen

Wang³

et al. 2015

Fungal Ecology

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Influence of simulated warming using OTC on physiological–biochemical characteristics of Elymus nutans in alpine meadow on Qinghai-Tibetan plateau

Cited by 23 publications

References 17 publications

Warming and Nitrogen Addition Alter Photosynthetic Pigments, Sugars and Nutrients in a Temperate Meadow Ecosystem

Warming and Nitrogen Addition Alter Photosynthetic Pigments, Sugars and Nutrients in a Temperate Meadow Ecosystem

Effects of Warming and N Deposition on the Physiological Performances of Leymus secalinus in Alpine Meadow of Qinghai-Tibetan Plateau

Does endophyte symbiosis resist allelopathic effects of an invasive plant in degraded grassland?

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