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  Functional conservation of wheat and rice Mlo orthologs in defense modulation to the powdery mildew fungus

Elliott, C., Zhou, F. S., Spielmeyer, W., Panstruga, R., & Schulze-Lefert, P. (2002). Functional conservation of wheat and rice Mlo orthologs in defense modulation to the powdery mildew fungus. Molecular Plant-Microbe Interactions, 15(10), 1069-1077.

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 Creators:
Elliott, C., Author
Zhou, F. S., Author
Spielmeyer, W., Author
Panstruga, R.1, Author              
Schulze-Lefert, P.1, Author              
Affiliations:
1Dept. of Plant Microbe Interactions (Paul Schulze-Lefert), MPI for Plant Breeding Research, Max Planck Society, ou_1113572              

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Free keywords: nonhost resistance; transient expression
 Abstract: Homologs of barley Mlo are found in syntenic positions in all three genomes of hexaploid bread wheat, Triticum aestivum, and in rice, Oryza sativa. Candidate wheat orthologs, designated TaMlo-A1, TaMlo-B1, and TaMlo-D1, encode three distinct but highly related proteins that are 88% identical to barley MLO and appear to originate from the three diploid ancestral genomes of wheat. TaMlo-B1 and the rice ortholog, OsMlo2, are able to complement powdery mildew-resistant barley mlo mutants at the single-cell level. Overexpression of TaMlo-B1 or barley Mlo leads to super-susceptibility to the appropriate powdery mildew formae speciales in both wild-type barley and wheat. Surprisingly, overexpression of either Mlo or TaMlo-B1 also mediates enhanced fungal development to tested inappropriate formae speciales. These results underline a regulatory role for MLO and its wheat and rice orthologs in a basal defense mechanism that can interfere with forma specialis resistance to powdery mildews.

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Language(s): eng - English
 Dates: 2002-10
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 28779
ISI: 000178436000011
 Degree: -

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Title: Molecular Plant-Microbe Interactions
  Alternative Title : Mol. Plant-Microbe Interact.
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 15 (10) Sequence Number: - Start / End Page: 1069 - 1077 Identifier: ISSN: 0894-0282