This Article Full Text Full Text (PDF) Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Schalamuk, S. Articles by Cabello, M. Search for Related Content PubMed Articles by Schalamuk, S. Articles by Cabello, M. Agricola Articles by Schalamuk, S. Articles by Cabello, M.

Fungal spore diversity of arbuscular mycorrhizal fungi associated with spring wheat: effects of tillage

     Instituto de Botánica Spegazzini, Avenida 53 Nu. 477, 1900 La Plata, Argentina

We investigated the influence of tilling, N fertilization and crop stage on arbuscular mycorrhizae (AM) fungal species diversity in a wheat monoculture in the Pampa region of Argentina. Glomalean spores were isolated by wet sieving and decanting from conventionally tilled and nontilled soils cropped with wheat with or without N fertilization, at three phenological stages of the crop (tilling, flowering and grain filling) and fallow. Morphological characterization yielded at least 24 AM fungi taxa in the field samples, belonging to six genera of AMF: Acaulospora Archaeospora, Entrophospora, Gigaspora, Glomus and Scutellospora. Tilling and fertilization treatments did not result in decreased spore biodiversity. Wheat phenology influenced AM communities, with highest spore biodiversity during grain filling.

Key words: AMF, biodiversity, conventional tillage, Glomeromycota, no-tillage, wheat phenological stages