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    Author(s): Mary E. Lucero; Jerry R. Barrow; Ruth Sedillo; Pedro Osuna-Avila; Isaac Reyes-Vera
    Date: 2008
    Source: In: Kitchen, Stanley G.; Pendleton, Rosemary L.; Monaco, Thomas A.; Vernon, Jason, comps. 2008. Proceedings-Shrublands under fire: disturbance and recovery in a changing world; 2006 June 6-8; Cedar City, UT. Proc. RMRS-P-52. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 87-90
    Publication Series: Proceedings (P)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (280 B)

    Description

    Obligate fungal endophytes form cryptic communities in vascular plants that can defy detection and isolation by microscopic examination of reproductive structures. Molecular detection by PCR amplification of fungal DNA sequences alone is insufficient, since target endophyte sequences are unknown and difficult to distinguish from sequences already characterized as plant DNA. We have successfully separated fungal and plant ribosomal DNA sequences by amplifying plant-extracted DNA with polymerase chain reaction, and separating sequences with denaturing gradient gel electrophoresis (DGGE). The resulting electrophoregrams theoretically produce specific bands unique for each organism present in a plant-endophyte community. This method has successfully identified endophyte sequences in B. eriopoda and A. canescens, and has tracked these endophytes as they are transferred to novel hosts.

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    Citation

    Lucero, Mary E.; Barrow, Jerry R.; Sedillo, Ruth; Osuna-Avila, Pedro; Reyes-Vera, Isaac 2008. Genetic characterization of uncultured fungal endophytes from Bouteloua eriopoda and Atriplex canescens. In: Kitchen, Stanley G.; Pendleton, Rosemary L.; Monaco, Thomas A.; Vernon, Jason, comps. 2008. Proceedings-Shrublands under fire: disturbance and recovery in a changing world; 2006 June 6-8; Cedar City, UT. Proc. RMRS-P-52. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 87-90

    Keywords

    wildland shrubs, disturbance, recovery, fire, invasive plants, restoration, ecology, microorganisms

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