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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2017.12.002
|2 doi
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|a pubmed24n0930.xml
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|a (DE-627)NLM279123981
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|a (NLM)29247937
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|a (PII)S0981-9428(17)30395-9
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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 da Silva, André Costa
|e verfasserin
|4 aut
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|a Eucalypt plants are physiologically and metabolically affected by infection with Ceratocystis fimbriata
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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 09.07.2018
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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 © 2017 Elsevier Masson SAS. All rights reserved.
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|a Ceratocystis wilt, caused by Ceratocystis fimbriata, is currently one of the most important disease in eucalypt plantations. Plants infected by C. fimbriata have lower volumetric growth, lower pulp yields and reduced timber values. The physiological bases of infection induced by this pathogen in eucalypt plant are not known. Therefore, this study aims to assess the physiological and metabolic changes in eucalypt clones that are resistant and susceptible to C. fimbriata. Once, we evaluated in detail their leaf gas exchange, chlorophyll a fluorescence, water potential, metabolite profiling and growth-related parameters. When inoculated, the susceptible clone displayed reduced water potential, CO2 assimilation rate, stomatal conductance, transpiration rate, photochemical quenching coefficient, electron transport rate, and root biomass. Inoculated resistant and susceptible clones both presented higher respiration rates than healthy plants. Many compounds of primary and secondary metabolism were significantly altered after fungal infection in both clones. These results suggest that, C. fimbriata interferes in the primary and secondary metabolism of plants that may be linked to the induction of defense mechanisms and that, due to water restrictions caused by the fungus in susceptible plants, there is a partial closure of the stomata to prevent water loss and a consequent reduction in photosynthesis and the transpiration rate, which in turn, leads to a decrease in the plant's growth-related. These results combined, allowed for a better understanding of the physiological and metabolic changes following the infectious process of C. fimbriata, which limit eucalypt plant growth
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|a Journal Article
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|a Ceratocystis wilt
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|a Ceratocystis' symptoms
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|a Chlorophyll a fluorescence
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|a Gas exchange
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| 650 |
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|a Primary metabolism
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| 650 |
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|a Vascular pathogens
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| 650 |
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4 |
|a Water potential
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| 700 |
1 |
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|a de Oliveira Silva, Franklin Magnum
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Milagre, Jocimar Caiafa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Omena-Garcia, Rebeca Patricia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Abreu, Mário Castro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mafia, Reginaldo Gonçalves
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nunes-Nesi, Adriano
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Alfenas, Acelino Couto
|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 123(2018) vom: 15. Feb., Seite 170-179
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:123
|g year:2018
|g day:15
|g month:02
|g pages:170-179
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|u http://dx.doi.org/10.1016/j.plaphy.2017.12.002
|3 Volltext
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