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Isolierung und Charakterisierung des ERP1-Gens aus Arabidopsis thaliana im Rahmen von Untersuchungen zur Nichtwirtsresistenz gegenüber Phytophthora infestans (2012)

Kopischke, Michaela [Verfasser] ; Scheel, Dierk [Akademischer Betreuer] 1950-2022 ; Deising, Holger [Akademischer Betreuer] ; [et al.]

Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt

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UID:

(DE-101)1031421203

Format: Online-Ressource

Note: Halle (Saale), Martin-Luther-Universität Halle-Wittenberg, Diss., 2012

Language: German

Keywords: Hochschulschrift

URN: urn:nbn:de:gbv:3:4-9205

URL: https://nbn-resolving.org/urn:nbn:de:gbv:3:4-9205

URL: https://d-nb.info/1031421203/34

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Isolierung und Charakterisierung des ERP1-Gens aus Arabidopsis thaliana im Rahmen von Untersuchungen zur Nichtwirtsresistenz gegenüber Phytophthora infestans (2012)

Kopischke, Michaela ; Scheel, Dierk [Betreuer] ; Deising, Holger [Betreuer] ; [et al.]

Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt

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UID:

(DE-603)318718049

Format: Online-Ressource

Note: Halle (Saale), Martin-Luther-Universität Halle-Wittenberg, Diss., 2012

Language: German

URN: urn:nbn:de:gbv:3:4-9205

URL: kostenfrei

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Isolierung und Charakterisierung des ERP1-Gens aus Arabidopsis thaliana im Rahmen von Untersuchungen zur Nichtwirtsresistenz gegenüber Phytophthora infestans (2012)

Kopischke, Michaela ; Scheel, Dierk [Gutachter] 1950-2022 ; Deising, Holger [Gutachter] Prof. Dr. ; [et al.]

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UID:

(DE-627)736091319

Format: V, 153 S. , graph. Darst.

Content: Nichtwirtsresistenz; Arabidopsis thaliana; Phytophthora infestans; Sterolester; Kallose; Mesophyll

Content: non-host resistance; Arabidopsis thaliana; Phytophthora infestans; sterol ester; callose; mesophyll

Content: Die Nichtwirtsresistenz von Arabidopsis thaliana gegen Phytophthora infestans basiert auf mehreren Ebenen der Abwehr. Die Myrosinase PEN2 und der ABC-Transporter PEN3 tragen effektiv zur Prä-invasiven Abwehr bei. Um weitere Gene zu identifizieren, die in diese Nichtwirts-Interaktion involviert sind, wurde ein genetischer screen mit re-mutagenisierten pen2-Pflanzen durchgeführt. Es wurden 14 unabhängige Mutanten isoliert, die entsprechend ihrer Phänotypen als enhanced response to Phytophthora (erp) bezeichnet wurden. Die Abwehrreaktion der erp1-Mutante gegenüber P. infestans und anderen filamentösen Pathogenen ging mit vermehrtem Zelltod und massiven PMR4-unabhängigen Kallose-Ablagerungen im Mesophyll einher. ERP1 kodiert die Phospholipid:Sterol-Acyltransferase PSAT1. erp1-Mutanten weisen stark reduzierte Sterolester-Mengen und eine veränderte Sterolhomöostase im Blatt auf. Dies legt eine Bedeutung von Sterolkonjugaten für die Abwehrreaktion gegen invasive filamentöse Pathogene nahe.

Content: The non-host resistance of Arabidopsis thaliana against Phytophthora infestans is based on a multi-layered defense response. The myrosinase PEN2 and the ABC-transporter PEN3 were shown to be required for an efficient pre-invasive resistance against P. infestans. To identify further genes involved in this non-host interaction, a genetic screen with re-mutagenized pen2 plants was performed. 14 independent mutants were isolated exhibiting an enhanced response to Phytophthora (erp) phenotype. The enhanced defense reaction of the erp1 mutant upon challenge with P. infestans and other filamentous pathogens was accompanied by an enhanced mesophyll cell death and excessive callose deposits in mesophyll cells, independent of PMR4. ERP1 encodes the phospholipid:sterol acyltransferase PSAT1. erp1 mutants showed highly reduced sterol ester levels and an altered sterol homeostasis in leaves. This suggests a role for sterol conjugates in defense responses against invasive filamentous pathogens.

Note: Tag der Verteidigung: 15.10.2012 , Halle, Univ., Naturwissenschaftliche Fakultät I, Diss., 2012

Additional Edition: Erscheint auch als Online-Ausgabe Kopischke, Michaela Isolierung und Charakterisierung des ERP1-Gens aus Arabidopsis thaliana im Rahmen von Untersuchungen zur Nichtwirtsresistenz gegenüber Phytophthora infestans 2012

Language: German

Keywords: Hochschulschrift

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Isolierung und Charakterisierung des ERP1-Gens aus Arabidopsis thaliana im Rahmen von Untersuchungen zur Nichtwirtsresistenz gegenüber Phytophthora infestans (2012)

Kopischke, Michaela ; Scheel, Dierk [Gutachter] 1950-2022 ; Deising, Holger [Gutachter] Prof. Dr. ; [et al.]

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UID:

(DE-627)736091394

Format: Online-Ressource (161 Bl. = 10,16 mb)

Content: Nichtwirtsresistenz; Arabidopsis thaliana; Phytophthora infestans; Sterolester; Kallose; Mesophyll

Content: non-host resistance; Arabidopsis thaliana; Phytophthora infestans; sterol ester; callose; mesophyll

Note: Tag der Verteidigung: 15.10.2012 , Halle, Univ., Naturwissenschaftliche Fakultät I, Diss., 2012

Additional Edition: Erscheint auch als Druck-Ausgabe Kopischke, Michaela Isolierung und Charakterisierung des ERP1-Gens aus Arabidopsis thaliana im Rahmen von Untersuchungen zur Nichtwirtsresistenz gegenüber Phytophthora infestans 2012

Language: German

Keywords: Hochschulschrift

DOI: 10.25673/709

URN: urn:nbn:de:gbv:3:4-9205

URL: Volltext

URL: Volltext (kostenfrei)

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Barley RIC157, a potential RACB scaffold protein, is involved in susceptibility to powdery mildew (2022)

Engelhardt, Stefan [Verfasser] ; Trutzenberg, Adriana [Verfasser] ; Kopischke, Michaela [Verfasser] ; [et al.]

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UID:

(DE-101)128254019X

Format: Online-Ressource , online resource.

ISSN: 1573-5028 , 1573-5028

In: day:23

In: month:12

In: year:2022

In: pages:1-16

In: Plant molecular biology, Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981-, (23.12.2022), 1-16, 1573-5028

Language: English

DOI: 10.1007/s11103-022-01329-x

URN: urn:nbn:de:101:1-2023030509210100001241

URL: https://doi.org/10.1007/s11103-022-01329-x

URL: https://nbn-resolving.org/urn:nbn:de:101:1-2023030509210100001241

URL: https://d-nb.info/128254019X/34

URL: https://doi.org/10.1007/s11103-022-01329-x

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Immobilized subpopulations of leaf epidermal mitochondria mediate PENETRATION2-dependent pathogen entry control in arabidopsis (2016)

Fuchs, Rene [VerfasserIn] ; Kopischke, Michaela [VerfasserIn] ; Klapprodt, Christine [VerfasserIn] ; [et al.]

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UID:

(DE-602)gbv_876757786

Format: Illustrationen, Diagramme

ISSN: 1532-298X

In: The plant cell, Rockville, Md. : Soc., 1989, 28(2016), 1, Seite 130-145, 1532-298X

In: volume:28

In: year:2016

In: number:1

In: pages:130-145

Language: English

DOI: 10.1105/tpc.15.00887

URL: Volltext

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A novel Arabidopsis CHITIN ELICITOR RECEPTOR KINASE 1 (CERK1) mutant with enhanced pathogen-induced cell death and altered receptor processing (2014)

Petutsching, Elena K. [VerfasserIn] ; Stolze, Marnie [VerfasserIn] ; Lipka, Ulrike [VerfasserIn] ; [et al.]

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UID:

(DE-627)1845911342

Format: 1 Online-Ressource (13 Seiten) , Diagramme, Illustrationen

ISSN: 1469-8137

Content: Summary: Plants detect pathogens by sensing microbe-associated molecular patterns (MAMPs) through pattern recognition receptors. Pattern recognition receptor complexes also have roles in cell death control, but the underlying mechanisms are poorly understood. Here, we report isolation of cerk1-4, a novel mutant allele of the Arabidopsis chitin receptor CERK1 with enhanced defense responses. We identified cerk1-4 in a forward genetic screen with barley powdery mildew and consequently characterized it by pathogen assays, mutant crosses and analysis of defense pathways. CERK1 and CERK1-4 proteins were analyzed biochemically. The cerk1-4 mutation causes an amino acid exchange in the CERK1 ectodomain. Mutant plants maintain chitin signaling capacity but exhibit hyper-inducible salicylic acid concentrations and deregulated cell death upon pathogen challenge. In contrast to chitin signaling, the cerk1-4 phenotype does not require kinase activity and is conferred by the N-terminal part of the receptor. CERK1 undergoes ectodomain shedding, a well-known process in animal cell surface proteins. Wild-type plants contain the full-length CERK1 receptor protein as well as a soluble form of the CERK1 ectodomain, whereas cerk1-4 plants lack the N-terminal shedding product. Our work suggests that CERK1 may have a chitin-independent role in cell death control and is the first report of ectodomain shedding in plants.

In: The new phytologist, Oxford [u.a.] : Wiley-Blackwell, 1902, 204(2014), 4, Seite 955-967, 1469-8137

In: volume:204

In: year:2014

In: number:4

In: pages:955-967

Language: English

DOI: 10.1111/nph.12920

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Impaired sterol ester synthesis alters the response of Arabidopsis thaliana to Phytophthora infestans (2013)

Kopischke, Michaela ; Westphal, Lore ; Schneeberger, Korbinian ; [et al.]

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UID:

(DE-602)gbv_773098496

Format: Ill., graph. Darst.

ISSN: 1365-313X

In: The plant journal, Oxford [u.a.] : Wiley-Blackwell, 1991, 73(2013), 3, Seite 456-468, 1365-313X

In: volume:73

In: year:2013

In: number:3

In: pages:456-468

Language: English

DOI: 10.1111/tpj.12046

URL: Volltext

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NET4 and RabG3 link actin to the tonoplast and facilitate cytoskeletal remodelling during stomatal immunity (2023)

Hawkins, Timothy J. [Verfasser] ; Kopischke, Michaela [Verfasser] ; Duckney, Patrick J. [Verfasser] ; [et al.]

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UID:

(DE-101)1318143942

Format: 1 Online-Ressource.

ISSN: 2041-1723

In: volume:14

In: number:1

In: day:20

In: month:9

In: year:2023

In: pages:1-19

In: date:12.2023

In: Nature Communications, [London] : Nature Publishing Group UK, [2010]-, 14, Heft 1 (20.9.2023), 1-19, 12.2023, 2041-1723

Language: English

DOI: 10.1038/s41467-023-41337-z

URN: urn:nbn:de:101:1-2024020210403395130507

URL: https://doi.org/10.1038/s41467-023-41337-z

URL: https://nbn-resolving.org/urn:nbn:de:101:1-2024020210403395130507

URL: https://d-nb.info/1318143942/34

URL: https://doi.org/10.1038/s41467-023-41337-z

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