A putative amino acid transporter is specifically expressed in Haustoria of the rust fungus Uromyces fabae

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1997
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Hahn, Matthias
Neef, Ulrike
Göttfert, Michael
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Molecular Plant - Microbe Interaction. 1997, 10(4), pp. 438-445. ISSN 0894-0282. Available under: doi: 10.1094/MPMI.1997.10.4.438
Zusammenfassung

A cDNA library constructed from haustoria of the rust fungus Uromyces fabae was screened for clones that are differentially expressed in haustoria. One family of cDNAs (in planta induced gene 2 [PIG2]) was isolated and found to encode a protein with high homologies to fungal amino acid transporters. A cDNA clone containing the complete coding region of PIG2 and the corresponding genomic clone were isolated and sequenced, revealing the presence of 17 introns in the PIG2 gene. Expression of PIG2 mRNA appeared to be restricted to haustoria. With antibodies raised against synthetic peptides, the PIG2-encoded protein was found in membrane fractions of isolated haustoria but not of germinated rust spores. With immunofluorescence microscopy, the putative amino acid transporter was localized to plasma membranes of the haustorial bodies, but not detected in the haustorial neck, haustorial mother cells, or intercellular fungal hyphae growing within infected leaf tissue. These data present for the first time molecular evidence that the rust haustorium plays a special role in the uptake of nutrients from an infected host cell.

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570 Biowissenschaften, Biologie
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permease, plant pathogen
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ISO 690HAHN, Matthias, Ulrike NEEF, Christine STRUCK, Michael GĂ–TTFERT, Kurt MENDGEN, 1997. A putative amino acid transporter is specifically expressed in Haustoria of the rust fungus Uromyces fabae. In: Molecular Plant - Microbe Interaction. 1997, 10(4), pp. 438-445. ISSN 0894-0282. Available under: doi: 10.1094/MPMI.1997.10.4.438
BibTex
@article{Hahn1997putat-7696,
  year={1997},
  doi={10.1094/MPMI.1997.10.4.438},
  title={A putative amino acid transporter is specifically expressed in Haustoria of the rust fungus Uromyces fabae},
  number={4},
  volume={10},
  issn={0894-0282},
  journal={Molecular Plant - Microbe Interaction},
  pages={438--445},
  author={Hahn, Matthias and Neef, Ulrike and Struck, Christine and Göttfert, Michael and Mendgen, Kurt}
}
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