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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2018.10.008
|2 doi
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|a pubmed24n0965.xml
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|a (DE-627)NLM28970927X
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|a (NLM)30336401
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|a (PII)S0176-1617(18)30370-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Lingyu
|e verfasserin
|4 aut
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| 245 |
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|a Combined impact of heat stress and phosphate deficiency on growth and photochemical activity of sheepgrass (Leymus chinensis)
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 17.01.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2018 Institute of Botany, Chinese Academy of Sciences, China. Published by Elsevier GmbH.. All rights reserved.
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|a Global climate warming has a crucial impact on many terrestrial ecosystems, including temperate steppe. In addition, phosphate deficiency is known to be the common deficiency in soils worldwide due to the low availability of the phosphate nutrient in the form of inorganic phosphate anions (Pi). Consequently, in the future, land plants are likely to simultaneously encounter heat stress and phosphate deficiency more frequently. Sheepgrass 〔Leymus chinensis (Trin.) Tzvel〕is a dominant perennial forage plant highly significant to grass productivity of Eurasian temperate grasslands. Though effects of environmental stress including drought and Pi starvation have been studied, the combined eff ;ects of phosphate deficiency and heat stress on plant physiology remain largely unclear. Here, we investigated the combined eff ;ects of heat stress and phosphate deficiency on above-ground tissue growth and photochemical properties of L. chinensis using in vivo chlorophyll fluorescence spectroscopy. We observed remarkable phenotypic alterations of reduced shoot growth and considerable leaf chlorosis in L. chinensis seedlings under the combined stress condition. Also, we compared changes in photochemical activity between the control and the corresponding stressed seedlings. Based on chlorophyll fluorescence analysis, impairment of PSI was more severe than that of PSII in the seedlings treated with the combined stress. Compared to the control, PSI and PSII activity decreased up to 35.5% and 30%, respectively, under the combined-stress condition. Moreover, our data show that the decreased photosynthetic activity is not the sum of the single-stressed conditions. These results combined with the distinction of other photochemical parameters indicate that a complex interaction between Pi-deficiency and heat stress may exist in the forage plant
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|a Journal Article
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|a Climate change
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|a Heat stress
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|a L. chinensis
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|a PSI
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|a PSII
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|a Pi deficiency
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|a Phosphates
|2 NLM
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| 650 |
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|a Photosystem II Protein Complex
|2 NLM
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| 650 |
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|a Chlorophyll
|2 NLM
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| 650 |
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|a 1406-65-1
|2 NLM
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| 700 |
1 |
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|a Yang, Haomeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ren, Weibo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Xinhong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Fang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 231(2018) vom: 15. Dez., Seite 271-276
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:231
|g year:2018
|g day:15
|g month:12
|g pages:271-276
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|u http://dx.doi.org/10.1016/j.jplph.2018.10.008
|3 Volltext
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|d 231
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|h 271-276
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