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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erv096
|2 doi
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|a (NLM)25788737
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Lara-Chavez, Alejandra
|e verfasserin
|4 aut
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|a Global gene expression profiling of two switchgrass cultivars following inoculation with Burkholderia phytofirmans strain PsJN
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|c 2015
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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
|b cr
|2 rdacarrier
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|a Date Completed 05.04.2016
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|a Date Revised 08.07.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Improvement and year-to-year stabilization of biomass yields are primary objectives for the development of a low-input switchgrass feedstock production system using microbial endophytes. An earlier investigation of the effect of Burkholderia phytofirmans strain PsJN on switchgrass germplasm demonstrated differential responses between genotypes. PsJN inoculation of cv. Alamo (lowland ecotype) increased the plant root system, shoot length, and biomass yields, whereas it had no beneficial effect on cv. Cave-in-Rock (upland ecotype). To understand the gene networks governing plant growth promotion responses triggered by PsJN, the gene expression profiles were analysed in these two hosts, following seedling inoculation. The Affymetrix platform switchgrass expressed sequence tag (EST) microarray chip representing 122 972 probe sets, developed by the DOE BioEnergy Science Center, was employed to assess transcript abundance at 0.5, 2, 4, and 8 DAI (days after PsJN inoculation). Approximately 20 000 switchgrass probe sets showed significant responses in either cultivar. Switchgrass identifiers were used to map 19 421 genes in MapMan software. There were apparent differences in gene expression profiling between responsive and non-responsive cultivars after PsJN inoculation. Overall, there were 14 984 and 9691 genes affected by PsJN inoculation in Alamo and Cave-in-Rock, respectively. Of these, 394 are annotated as pathogenesis-related genes. In the responsive cv. Alamo, 68 pathogenesis-related genes were affected, compared with only 10 in the non-responsive cv. Cave-in-Rock. At the very early stage at 0.5 DAI, both cultivars exhibited similar recognition and defence responses, such as genes in signalling and proteolysis, after which the defence reaction in the responsive cv. Alamo became weaker while it was sustained in non-responsive cv. Cave-in-Rock
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Beneficial bacterial endophyte
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|a Burkholderia phytofirmans strain PsJN
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|a Panicum virgatum L.
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| 650 |
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|a gene expression profiling
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|a genotypic specificity
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| 650 |
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|a growth promotion
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|a Lowman, Scott
|e verfasserin
|4 aut
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| 700 |
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|a Kim, Seonhwa
|e verfasserin
|4 aut
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| 700 |
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|a Tang, Yuhong
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Jiyi
|e verfasserin
|4 aut
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|a Udvardi, Michael
|e verfasserin
|4 aut
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|a Nowak, Jerzy
|e verfasserin
|4 aut
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|a Flinn, Barry
|e verfasserin
|4 aut
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|a Mei, Chuansheng
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 66(2015), 14 vom: 18. Juli, Seite 4337-50
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:66
|g year:2015
|g number:14
|g day:18
|g month:07
|g pages:4337-50
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|u http://dx.doi.org/10.1093/jxb/erv096
|3 Volltext
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