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|a 10.1093/jxb/erad125
|2 doi
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|a pubmed24n1183.xml
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|a (DE-627)NLM355151502
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|a (NLM)37010326
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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 Guo, Nan
|e verfasserin
|4 aut
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| 245 |
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|a Knock out of amino acid transporter gene OsLHT1 accelerates leaf senescence and enhances resistance to rice blast fungus
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|c 2023
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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
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|2 rdacarrier
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|a Date Completed 07.08.2023
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|a Date Revised 07.08.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2023. 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 Plant amino acid transporters regulate not only long-distance transport and reallocation of nitrogen (N) from source to sink organs, but also the amount of amino acids in leaves hijacked by invading pathogens. However, the function of amino acid transporters in plant defense responses to pathogen infection remains unknown. In this study, we found that the rice amino acid transporter gene OsLHT1 was expressed in leaves and up-regulated by maturation, N starvation, and inoculation of the blast fungus Magnaporthe oryzae. Knock out of OsLHT1 resulted in development stage- and N supply-dependent premature senescence of leaves at the vegetative growth stage. In comparison with the wild type, Oslht1 mutant lines showed sustained rusty red spots on fully mature leaf blades irrespective of N supply levels. Notably, no relationship between the severity of leaf rusty red spots and concentration of total N or amino acids was found in Oslht1 mutants at different developmental stages. Disruption of OsLHT1 altered transport and metabolism of amino acids and biosynthesis of flavones and flavonoids, enhanced expression of jasmonic acid- and salicylic acid-related defense genes, production of jasmonic acid and salicylic acid, and accumulation of reactive oxygen species. OsLHT1 inactivation dramatically prevented the leaf invasion by M. oryzae, a hemi-biotrophic ascomycete fungus. Overall, these results establish a link connecting the activity of an amino acid transporter with leaf metabolism and defense against rice blast fungus
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Magnaporthe oryzae
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| 650 |
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|a Amino acid transporter (AAT)
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| 650 |
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|a OsLHT1
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| 650 |
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|a leaf senescence
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| 650 |
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|a metabolomic profiling
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| 650 |
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|a nitrogen supply
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| 650 |
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|a rice blast fungus
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| 650 |
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|a jasmonic acid
|2 NLM
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| 650 |
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|a 6RI5N05OWW
|2 NLM
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| 650 |
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|a Amino Acid Transport Systems
|2 NLM
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| 650 |
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|a Amino Acids
|2 NLM
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| 650 |
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7 |
|a Salicylates
|2 NLM
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| 700 |
1 |
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|a Qu, Hongye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhi, Yue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yuyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cheng, Shujing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chu, Jinfang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Zhengguang
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Guohua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 74(2023), 14 vom: 03. Aug., Seite 4143-4157
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:74
|g year:2023
|g number:14
|g day:03
|g month:08
|g pages:4143-4157
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erad125
|3 Volltext
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