Download Biotechnology of Ectomycorrhizae: Molecular Approaches by D. J. Read (auth.), Vilberto Stocchi, Paola Bonfante, Marco PDF

By D. J. Read (auth.), Vilberto Stocchi, Paola Bonfante, Marco Nuti (eds.)

Forty years after the invention of the helix nature of DNA and greater than twenty after the 1st functions of recombinant DNA expertise to the pharmaceutical undefined, the Pandora's vase of biotechnology turns out faraway from being empty. New items for agriculture and the meals are consistently being put on the marketplace, and strong tracking recommendations were constructed to trace non-modified and genetically converted vaccines, viruses, microbes and crops published into the surroundings. Molecular ways for taxonomic reasons, which would even be worthwhile for qc and coverage, were effectively constructed and used for taxonomic reasons within the final decade for either prokaryotic and eukaryotic cells, together with yeasts and filamentous fungi. Mycorrhizae are one instance of a standard biotechnology that could enormously enjoy the most up-to-date molecular methods. those common symbioses among soil fungi and plant roots playa important position in many of the common and agricultural ecosystems in such key procedures as nutrient biking, soil structural conservation and plant health and wellbeing. For those purposes, mycorrhizae were effectively used to enhance the standard of woodland and agricultural seedlings, to provide top quality micropropagated vegetation and to extend the creation of fit to be eaten mushrooms of excessive monetary price, similar to tarts. in spite of the fact that, even if managed inoculation of oak and hazel seedlings with ectomycorrhizal brownies has been conducted for many years in France and Italy, and remains to be increasing commercially, a number of technological gaps stay to be filled.

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Microbiol. 58: 291295. Smith, A. , 1973, Agaricales and related secotioid Gasteromycetes, In Ainsworth, G. , Sparrow, F. K. ,and Sussman, A. S. ), The Fungi-an Advanced Treatise, Vol. IVB, Academic Press, New York. pp. 421-450. , 1993, Higher taxa of Basidiomycetes: an 18S rRNA gene perspective, Mycologia 85: 923-936. Trappe, J. , Fungus associates of ectotrophic mycorrhizae, Bot. Rev. 28: 538-606. Trappe, J. , 1967, Principles of classifying ectotrophic mycorrhizae for identification of fungal symbionts, 14th Congr.

1988). PCR enables increasing the number of copies of the genomic region of interest without need to culture the target organism. , 1992). , 1991). Amplification and sequencing of highly conserved regions ofthe genome have been used to confirm hypotheses of evolutionary biology and higher level phylogenetic framework. Wainwright et al. (1993), working at the kingdom level, suggested that fungi and animals share "a unique evolutionary history". Swann and Taylor (1993) studied higher taxa of Basiodiomycetes and proposed three major monophyletic lineages: Ustilaginales, simple septate and hymenomycete lineages.

The analysis of the 18S gene sequences obtained from 13 species representing the genera Glomus, Acalauspora, Entrophospora, Gigaspora and Scutellospora has shown that the Glomales forms a coherent monophyletic group of fungi (10). Recent evidence presented by K. O'Donnell indicates that the Glomales are, within the Zygomycetes, the closest group to the derived classes Ascomycotina and Basidiomycotina. ). This date has been confirmed by another group also using a molecular clock analysis, but with a different dataset comprising only fungal 18S sequences and a different set of calibration events (3).

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