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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-03-23-0562-RE
|2 doi
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|a pubmed24n1246.xml
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|a (NLM)37330633
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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 Rahman Bhuiyan, Md Ziaur
|e verfasserin
|4 aut
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|a Histopathological Investigation of Varietal Responses to Cercospora beticola Infection Process on Sugar Beet Leaves
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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 01.01.2024
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|a Date Revised 01.01.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Cercospora leaf spot (CLS) is the most destructive foliar disease in sugar beet (Beta vulgaris). It is caused by Cercospora beticola Sacc., a fungal pathogen that produces toxins and enzymes which affect membrane permeability and cause cell death during infection. In spite of its importance, little is known about the initial stages of leaf infection by C. beticola. Therefore, we investigated the progression of C. beticola on leaf tissues of susceptible and resistant sugar beet varieties at 12-h intervals during the first 5 days after inoculation using confocal microscopy. Inoculated leaf samples were collected and stored in DAB (3,3'-diaminobenzidine) solution until processed. Samples were stained with Alexa Fluor-488-WGA dye to visualize fungal structures. Fungal biomass accumulation, reactive oxygen species (ROS) production, and the area under the disease progress curve were evaluated and compared. ROS production was not detected on any variety before 36 h postinoculation (hpi). C. beticola biomass accumulation, percentage leaf cell death, and disease severity were all significantly greater in the susceptible variety compared with the resistant variety (P < 0.05). Conidia penetrated directly through stomata between 48 to 60 hpi and produced appressoria on stomatal guard cells at 60 to 72 hpi in susceptible and resistant varieties, respectively. Penetration of hyphae inside the parenchymatous tissues varied in accordance with time postinoculation and varietal genotypes. Overall, this study provides a detailed account to date of events leading to CLS disease development in two contrasting varieties
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|a Journal Article
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|a confocal microscopy
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|a hemibiotrophic
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|a infection mechanism
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|a sugar beet
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| 650 |
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|a Reactive Oxygen Species
|2 NLM
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| 650 |
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|a Sugars
|2 NLM
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| 700 |
1 |
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|a Solanki, Shyam
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Del Rio Mendoza, Luis E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Borowicz, Pawel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lakshman, Dilip K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qi, Aiming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ameen, Gazala
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Khan, Mohamed F R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 107(2023), 12 vom: 01. Dez., Seite 3906-3912
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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|g volume:107
|g year:2023
|g number:12
|g day:01
|g month:12
|g pages:3906-3912
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|u http://dx.doi.org/10.1094/PDIS-03-23-0562-RE
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