Reference: Lu Q, et al. (2008) Magnaporthe oryzae MTP1 gene encodes a type III transmembrane protein involved in conidiation and conidial germination. J Zhejiang Univ Sci B 9(7):511-9

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Abstract


In this study the MTP1 gene, encoding a type III integral transmembrane protein, was isolated from the rice blast fungus Magnaporthe oryzae. The Mtp1 protein is 520 amino acids long and is comparable to the Ytp1 protein of Saccharomyces cerevisiae with 46% sequence similarity. Prediction programs and MTP1-GFP (green fluorescent protein) fusion expression results indicate that Mtp1 is a protein located at several membranes in the cytoplasm. The functions of the MTP1 gene in the growth and development of the fungus were studied using an MTP1 gene knockout mutant. The MTP1 gene was primarily expressed at the hyphal and conidial stages and is necessary for conidiation and conidial germination, but is not required for pathogenicity. The Deltamtp1 mutant grew more efficiently than the wild type strain on non-fermentable carbon sources, implying that the MTP1 gene has a unique role in respiratory growth and carbon source use.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Lu Q, Lu JP, Li XD, Liu XH, Min H, Lin FC
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