Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease.

Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. Howeve...
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Autor*in:	Rajesh N Patkar [verfasserIn] Yang Kui Xue [verfasserIn] Guanghou Shui [verfasserIn] Markus R Wenk [verfasserIn] Naweed I Naqvi [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2012

Übergeordnetes Werk:	In: PLoS Pathogens - Public Library of Science (PLoS), 2005, 8(2012), 8, p e1002888
Übergeordnetes Werk:	volume:8 ; year:2012 ; number:8, p e1002888

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.1371/journal.ppat.1002888

Katalog-ID:	DOAJ001703587

Internformat


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520			\|a Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease.
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allfields	10.1371/journal.ppat.1002888 doi (DE-627)DOAJ001703587 (DE-599)DOAJe69d6af9fe0740c0a01b82d86740826a DE-627 ger DE-627 rakwb eng RC581-607 QH301-705.5 Rajesh N Patkar verfasserin aut Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease. 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease. Immunologic diseases. Allergy Biology (General) Yang Kui Xue verfasserin aut Guanghou Shui verfasserin aut Markus R Wenk verfasserin aut Naweed I Naqvi verfasserin aut In PLoS Pathogens Public Library of Science (PLoS), 2005 8(2012), 8, p e1002888 (DE-627)501074422 (DE-600)2205412-1 15537374 nnns volume:8 year:2012 number:8, p e1002888 https://doi.org/10.1371/journal.ppat.1002888 kostenfrei https://doaj.org/article/e69d6af9fe0740c0a01b82d86740826a kostenfrei http://europepmc.org/articles/PMC3426555?pdf=render kostenfrei https://doaj.org/toc/1553-7366 Journal toc kostenfrei https://doaj.org/toc/1553-7374 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2012 8, p e1002888
spelling	10.1371/journal.ppat.1002888 doi (DE-627)DOAJ001703587 (DE-599)DOAJe69d6af9fe0740c0a01b82d86740826a DE-627 ger DE-627 rakwb eng RC581-607 QH301-705.5 Rajesh N Patkar verfasserin aut Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease. 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease. Immunologic diseases. Allergy Biology (General) Yang Kui Xue verfasserin aut Guanghou Shui verfasserin aut Markus R Wenk verfasserin aut Naweed I Naqvi verfasserin aut In PLoS Pathogens Public Library of Science (PLoS), 2005 8(2012), 8, p e1002888 (DE-627)501074422 (DE-600)2205412-1 15537374 nnns volume:8 year:2012 number:8, p e1002888 https://doi.org/10.1371/journal.ppat.1002888 kostenfrei https://doaj.org/article/e69d6af9fe0740c0a01b82d86740826a kostenfrei http://europepmc.org/articles/PMC3426555?pdf=render kostenfrei https://doaj.org/toc/1553-7366 Journal toc kostenfrei https://doaj.org/toc/1553-7374 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2012 8, p e1002888
allfields_unstemmed	10.1371/journal.ppat.1002888 doi (DE-627)DOAJ001703587 (DE-599)DOAJe69d6af9fe0740c0a01b82d86740826a DE-627 ger DE-627 rakwb eng RC581-607 QH301-705.5 Rajesh N Patkar verfasserin aut Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease. 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease. Immunologic diseases. Allergy Biology (General) Yang Kui Xue verfasserin aut Guanghou Shui verfasserin aut Markus R Wenk verfasserin aut Naweed I Naqvi verfasserin aut In PLoS Pathogens Public Library of Science (PLoS), 2005 8(2012), 8, p e1002888 (DE-627)501074422 (DE-600)2205412-1 15537374 nnns volume:8 year:2012 number:8, p e1002888 https://doi.org/10.1371/journal.ppat.1002888 kostenfrei https://doaj.org/article/e69d6af9fe0740c0a01b82d86740826a kostenfrei http://europepmc.org/articles/PMC3426555?pdf=render kostenfrei https://doaj.org/toc/1553-7366 Journal toc kostenfrei https://doaj.org/toc/1553-7374 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2012 8, p e1002888
allfieldsGer	10.1371/journal.ppat.1002888 doi (DE-627)DOAJ001703587 (DE-599)DOAJe69d6af9fe0740c0a01b82d86740826a DE-627 ger DE-627 rakwb eng RC581-607 QH301-705.5 Rajesh N Patkar verfasserin aut Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease. 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease. Immunologic diseases. Allergy Biology (General) Yang Kui Xue verfasserin aut Guanghou Shui verfasserin aut Markus R Wenk verfasserin aut Naweed I Naqvi verfasserin aut In PLoS Pathogens Public Library of Science (PLoS), 2005 8(2012), 8, p e1002888 (DE-627)501074422 (DE-600)2205412-1 15537374 nnns volume:8 year:2012 number:8, p e1002888 https://doi.org/10.1371/journal.ppat.1002888 kostenfrei https://doaj.org/article/e69d6af9fe0740c0a01b82d86740826a kostenfrei http://europepmc.org/articles/PMC3426555?pdf=render kostenfrei https://doaj.org/toc/1553-7366 Journal toc kostenfrei https://doaj.org/toc/1553-7374 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2012 8, p e1002888
allfieldsSound	10.1371/journal.ppat.1002888 doi (DE-627)DOAJ001703587 (DE-599)DOAJe69d6af9fe0740c0a01b82d86740826a DE-627 ger DE-627 rakwb eng RC581-607 QH301-705.5 Rajesh N Patkar verfasserin aut Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease. 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease. Immunologic diseases. Allergy Biology (General) Yang Kui Xue verfasserin aut Guanghou Shui verfasserin aut Markus R Wenk verfasserin aut Naweed I Naqvi verfasserin aut In PLoS Pathogens Public Library of Science (PLoS), 2005 8(2012), 8, p e1002888 (DE-627)501074422 (DE-600)2205412-1 15537374 nnns volume:8 year:2012 number:8, p e1002888 https://doi.org/10.1371/journal.ppat.1002888 kostenfrei https://doaj.org/article/e69d6af9fe0740c0a01b82d86740826a kostenfrei http://europepmc.org/articles/PMC3426555?pdf=render kostenfrei https://doaj.org/toc/1553-7366 Journal toc kostenfrei https://doaj.org/toc/1553-7374 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2012 8, p e1002888
language	English
source	In PLoS Pathogens 8(2012), 8, p e1002888 volume:8 year:2012 number:8, p e1002888
sourceStr	In PLoS Pathogens 8(2012), 8, p e1002888 volume:8 year:2012 number:8, p e1002888
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Immunologic diseases. Allergy Biology (General)
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container_title	PLoS Pathogens
authorswithroles_txt_mv	Rajesh N Patkar @@aut@@ Yang Kui Xue @@aut@@ Guanghou Shui @@aut@@ Markus R Wenk @@aut@@ Naweed I Naqvi @@aut@@
publishDateDaySort_date	2012-01-01T00:00:00Z
hierarchy_top_id	501074422
id	DOAJ001703587
language_de	englisch
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callnumber-first	R - Medicine
author	Rajesh N Patkar
spellingShingle	Rajesh N Patkar misc RC581-607 misc QH301-705.5 misc Immunologic diseases. Allergy misc Biology (General) Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease.
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topic_title	RC581-607 QH301-705.5 Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease
topic	misc RC581-607 misc QH301-705.5 misc Immunologic diseases. Allergy misc Biology (General)
topic_unstemmed	misc RC581-607 misc QH301-705.5 misc Immunologic diseases. Allergy misc Biology (General)
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title	Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease.
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title_full	Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease
author_sort	Rajesh N Patkar
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title_sort	abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by magnaporthe oryzae is necessary for host invasion during blast disease
callnumber	RC581-607
title_auth	Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease.
abstract	Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease.
abstractGer	Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease.
abstract_unstemmed	Magnaporthe oryzae, which causes the devastating rice-blast disease, invades its host plants via a specialized infection structure called the appressorium. Previously, we showed that the ATP-Binding Cassette 3 transporter is necessary for appressorial function (host penetration) in M. oryzae. However, thus far, the molecular basis underlying impaired appressorial function in the abc3Δ remains elusive. We hypothesized that the abc3Δ appressoria accumulate excessive amounts of specific efflux substrate(s) of the Abc3 transporter in M. oryzae. We devised an innovative yeast-based strategy and identified Abc3 Transporter efflux Substrate (ATS) to be a digoxin-like endogenous steroidal glycoside that accumulates to inhibitory levels in M. oryzae abc3Δ appressoria. Exogenous ATS altered cell wall biogenesis and viability in wild-type Schizosaccharomyces pombe, but not in S. pombe expressing M. oryzae Abc3. We show that ATS associates with the Translation Elongation factor Tef2 in M. oryzae, and propose that ATS regulates ion homeostasis during pathogenesis. Excessive ATS accumulation, either intracellularly due to impaired efflux in the abc3Δ or when added exogenously to the wild type, renders M. oryzae nonpathogenic. Furthermore, we demonstrate that the host penetration defects in the abc3Δ are due to aberrant F-actin dynamics as a result of altered Tef2 function and/or ion homeostasis defects caused by excess accumulation of ATS therein. Rather surprisingly, excessive exogenous ATS or digoxin elicited the hypersensitive response in rice, even in the absence of the blast fungus. Lastly, reduced disease symptoms in the inoculated host plants in the presence of excessive digoxin suggest a potential use for such related steroidal glycosides in controlling rice-blast disease.
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title_short	Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease.
url	https://doi.org/10.1371/journal.ppat.1002888 https://doaj.org/article/e69d6af9fe0740c0a01b82d86740826a http://europepmc.org/articles/PMC3426555?pdf=render https://doaj.org/toc/1553-7366 https://doaj.org/toc/1553-7374
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Abc3-mediated efflux of an endogenous digoxin-like steroidal glycoside by Magnaporthe oryzae is necessary for host invasion during blast disease.

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