A gene encoding a protein elicitor of Phytophthora infestans is down-regulated during infection of potato

Molecular Plant-microbe Interactions : MPMI
Sophien KamounFrancine Govers

Abstract

Most species of the genus Phytophthora produce 10-kDa extracellular protein elicitors, collectively termed elicitins. Elicitins induce hypersensitive response in a restricted number of plants, particularly in the genus Nicotiana within the Solanaceae family. A cDNA encoding INF1, the major secreted elicitin of Phytophthora infestans, a pathogen of solanaceous plants, was isolated and characterized. The expression of the corresponding inf1 gene during the disease cycle of P. infestans was analyzed. inf1 was shown to be expressed in mycelium grown in various culture media, whereas it was not expressed in sporangiospores, zoospores, cysts, and germinating cysts. In planta, during infection of potato, particularly during the biotrophic stage, expression of inf1 was down-regulated compared to in vitro. The highest levels of expression of inf1 were observed in in vitro grown mycelium and in late stages of infection when profuse sporulation and leaf necrosis occur. The potential role of INF1 as an elicitor in interactions between P. infestans and Solanum species was investigated. Nineteen lines, representing nine solanaceous species with various levels of resistance to P. infestans, were tested for response to an Escherichia coli expr...Continue Reading

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Citations

Feb 11, 2005·Molecular Genetics and Genomics : MGG·Rays H Y JiangFrancine Govers
Nov 23, 2006·Molecular Genetics and Genomics : MGG·Q H ChenX B Zheng
Jul 10, 2009·Journal of Chemical Ecology·Lina F YousefRichard P Dick
Mar 31, 2004·Trends in Microbiology·Edgar HuitemaSophien Kamoun
Nov 11, 1999·Journal of Immunological Methods·K C GoughG C Whitelam
Sep 12, 2002·Fungal Genetics and Biology : FG & B·K J MayA Drenth
May 14, 1999·Trends in Plant Science·S KamounV G Vleeshouwers
Jun 22, 2001·Current Opinion in Plant Biology·S Kamoun
Nov 1, 2002·Molecular Plant Pathology·Katinka BeyerMargaret A Collinge
Sep 1, 2001·Molecular Plant Pathology·P R Birch, S C Whisson
Jan 28, 2009·Proceedings of the National Academy of Sciences of the United States of America·Jing SongSophien Kamoun
May 12, 2010·Proceedings of the National Academy of Sciences of the United States of America·Jorunn I B BosPaul R J Birch
Mar 9, 2012·Molecular Plant-microbe Interactions : MPMI·Suomeng DongYuanchao Wang
Jun 17, 2006·Molecular Plant-microbe Interactions : MPMI·Suzan H E J GabriëlsMatthieu H A J Joosten
Aug 15, 2006·Molecular Plant-microbe Interactions : MPMI·Thirumala-Devi KannegantiSophien Kamoun
Dec 13, 2006·Molecular Plant-microbe Interactions : MPMI·Sang-Jik LeeJocelyn K C Rose
Jul 3, 2007·Molecular Plant-microbe Interactions : MPMI·Trudy A Torto-AlaliboBrett M Tyler
Nov 14, 1997·Molecular Plant-microbe Interactions : MPMI·S KamounF Govers
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Feb 13, 2003·Molecular Plant-microbe Interactions : MPMI·Sophien KamounEdgar Huitema
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Feb 2, 2006·Annual Review of Phytopathology·Sophien Kamoun
Dec 9, 2010·BMC Microbiology·Ping KongChuanxue Hong
Nov 17, 2009·Theoretical Biology & Medical Modelling·Andrés PinzónSilvia Restrepo
Jun 3, 2014·BMC Plant Biology·Bao-Zhen FengXiu-Guo Zhang
Jul 13, 2007·Proceedings of the National Academy of Sciences of the United States of America·Antje HeeseJohn P Rathjen

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