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20231225093913.0 |
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cr uuu---uuuuu |
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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-09-18-1687-RE
|2 doi
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|a pubmed24n0994.xml
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|a (NLM)31215852
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Qi, Fengkun
|e verfasserin
|4 aut
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| 245 |
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|a Analysis of Cytology and Expression of Resistance Genes in Maize Infected with Sporisorium reilianum
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| 264 |
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|c 2019
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 09.08.2019
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|a Date Revised 09.08.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Head smut, caused by the fungus Sporisorium reilianum, is a devastating global disease of maize (Zea mays). In the present study, maize seedlings were artificially inoculated with compatible mating-type strains of S. reilianum by needle inoculation of mesocotyls (NIM) or by soaking inoculation of radicles (SIR). After NIM or SIR, Huangzao4 mesocotyls exhibited severe damage with brownish discoloration and necrosis, whereas Mo17 mesocotyls exhibited few lesions. Fluorescence and electron microscopy showed that S. reilianum infected maize within 0.5 day after SIR and mainly colonized the phloem. With longer incubation, the density of S. reilianum hyphae increased in the vascular bundles, concentrated mainly in the phloem. In Mo17, infected cells exhibited apoptosis-like features, and hyphae became sequestered within dead cells. In contrast, in Huangzao4, pathogen invasion resulted in autophagy that failed to prevent hyphal spreading. The growth of S. reilianum hyphae diminished at 6 days after inoculation when expression of the R genes ZmWAK and ZmNL peaked. Thus, 6 days after SIR inoculation might be an important time for inhibiting the progress of S. reilianum infection in maize. The results of this study will provide a basis for further analysis of the mechanisms of maize resistance to S. reilianum
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|a Journal Article
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|a expression of disease-resistance genes
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|a head smut
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| 650 |
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4 |
|a maize
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| 700 |
1 |
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|a Zhang, Lin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Xiaojie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Di, Hong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Jiayue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Minhao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Ling
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zeng, Xing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xianjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhenhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Yu
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 103(2019), 8 vom: 01. Aug., Seite 2100-2107
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|7 nnns
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|g volume:103
|g year:2019
|g number:8
|g day:01
|g month:08
|g pages:2100-2107
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