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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.05.014
|2 doi
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|a pubmed24n1035.xml
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|a (DE-627)NLM310658721
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|a (NLM)32485616
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|a (PII)S0981-9428(20)30238-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Chen, Shengxian
|e verfasserin
|4 aut
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|a Roots play a key role in drought-tolerance of poplars as suggested by reciprocal grafting between male and female clones
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 11.09.2020
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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 © 2020 Elsevier Masson SAS. All rights reserved.
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|a Drought stress influences the growth of plants and thus grafting has been widely used to improve tolerance to abiotic stresses. Poplars possess sex-specific responses to drought stress, but how male or female rootstock affect the grafted plant is little known. To explore the mechanisms underlying changes in drought tolerance caused by grafting, we investigated the changes in growth, leaf traits, gas exchange and antioxidant enzyme activities of reciprocally grafted seedlings between Populus euramericana cv. "Nanlin895" (NL-895) (female) and Populus deltiodes cv."3412" (NL-3412) (male) under water deficit stress with 30% field capacity for 30 d. Results showed that drought stress affected adversely growth, morphological, and physiological characteristics in all seedlings studied. Grafted seedlings with male roots can effectively alleviated the inhibition of growth induced by drought stress, as shown by higher WUE, activities of SOD, POD and CAT, and lower levels of lipid peroxidation. Male seedlings with female roots were found to be less tolerance to drought than non-grafted male clones and female scions with male roots, but more tolerance than non-grafted female clones. This results suggested that drought tolerance of grafted seedlings is primarily caused by the rootstock, although the scion also affects the grafted plant. Thus, paying attention on the root genotype can provide an important means of improving the drought tolerance of poplars
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|a Journal Article
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|a Drought stress
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|a Gas exchange
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|a Growth characteristics
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|a Poplars
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|a Protective enzymes
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|a Reciprocal grafting
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|a Yi, Lita
|e verfasserin
|4 aut
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|a Korpelainen, Helena
|e verfasserin
|4 aut
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|a Yu, Fei
|e verfasserin
|4 aut
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|a Liu, Meihua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 153(2020) vom: 05. Aug., Seite 81-91
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:153
|g year:2020
|g day:05
|g month:08
|g pages:81-91
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|u http://dx.doi.org/10.1016/j.plaphy.2020.05.014
|3 Volltext
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