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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17386
|2 doi
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|a pubmed24n1079.xml
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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 |
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|a Costa, Juliana L
|e verfasserin
|4 aut
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|a Moniliophthora perniciosa, the causal agent of witches' broom disease of cacao, interferes with cytokinin metabolism during infection of Micro-Tom tomato and promotes symptom development
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|c 2021
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| 336 |
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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 10.06.2021
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 The Authors New Phytologist © 2021 New Phytologist Foundation.
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|a Moniliophthora perniciosa causes witches' broom disease of cacao and inflicts symptoms suggestive of hormonal imbalance. We investigated whether infection of the tomato (Solanum lycopersicum) model system Micro-Tom (MT) by the Solanaceae (S)-biotype of Moniliophthora perniciosa, which causes stem swelling and hypertrophic growth of axillary shoots, results from changes in host cytokinin metabolism. Inoculation of an MT-transgenic line that overexpresses the Arabidopsis CYTOKININ OXIDASE-2 gene (35S::AtCKX2) resulted in a reduction in disease incidence and stem diameter. RNA-sequencing analysis of infected MT and 35S::AtCKX2 revealed the activation of cytokinin-responsive marker genes when symptoms were conspicuous. The expression of an Moniliophthora perniciosa tRNA-ISOPENTENYL-TRANSFERASE suggests the production of isopentenyladenine (iP), detected in mycelia grown in vitro. Inoculated MT stems showed higher levels of dihydrozeatin and trans-zeatin but not iP. The application of benzyladenine induced symptoms similar to infection, whereas applying the cytokinin receptor inhibitors LGR-991 and PI55 decreased symptoms. Moniliophthora perniciosa produces iP that might contribute to cytokinin synthesis by the host, which results in vascular and cortex enlargement, axillary shoot outgrowth, reduction in root biomass and an increase in fruit locule number. This strategy may be associated with the manipulation of sink establishment to favour infection by the 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 M82
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|a Micro-Tom
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|a cytokinin inhibitor
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|a cytokinin oxidase
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|a fruit locule number
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|a hormonal imbalance
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|a tRNA-isopentenyl transferase
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|a witches' broom disease
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| 650 |
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|a Cytokinins
|2 NLM
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| 700 |
1 |
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|a Paschoal, Daniele
|e verfasserin
|4 aut
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| 700 |
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|a da Silva, Eder M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Silva, Jamille S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a do Carmo, Rafael M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Carrera, Esther
|e verfasserin
|4 aut
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| 700 |
1 |
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|a López-Díaz, Isabel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rossi, Mônica L
|e verfasserin
|4 aut
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| 700 |
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|a Freschi, Luciano
|e verfasserin
|4 aut
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| 700 |
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|a Mieczkowski, Piotr
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peres, Lazaro E P
|e verfasserin
|4 aut
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| 700 |
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|a Teixeira, Paulo J P L
|e verfasserin
|4 aut
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| 700 |
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|a Figueira, Antonio
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 231(2021), 1 vom: 01. Juli, Seite 365-381
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:231
|g year:2021
|g number:1
|g day:01
|g month:07
|g pages:365-381
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|u http://dx.doi.org/10.1111/nph.17386
|3 Volltext
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|d 231
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|h 365-381
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