Arbuscular mycorrhizal fungi in mimosa tenuiflora (Willd.) Poir from Brazilian semi-arid

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Abstract

Many plant species from Brazilian semi-arid present arbuscular mycorrhizal fungi (AMF)in their rhizosphere. These microorganisms play a key role in the establishment, growth,survival of plants and protection against drought, pathogenic fungi and nematodes. Thisstudy presents a quantitative analysis of the AMF species associated with Mimosa tenuiflora,an important native plant of the Caatinga flora. AMF diversity, spore abundance and rootcolonization were estimated in seven sampling locations in the Ceará and Paraíba States,during September of 2012. There were significant differences in soil properties, spore abun-dance, percentage of root colonization, and AMF diversity among sites. Altogether, 18 AMFspecies were identified, and spores of the genera Acaulospora, Claroideoglomus, Dentiscutata,Entrophospora, Funneliformis, Gigaspora, Glomus, Racocetra, Rhizoglomus and Scutellospora wereobserved. AMF species diversity and their spore abundance found in M. tenuiflora rhizosphereshown that this native plant species is an important host plant to AMF communities fromBrazilian semi-arid region. We concluded that: (a) during the dry period and in semi-aridconditions, there is a high spore production in M. tenuiflora root zone; and (b) soil properties,as soil pH and available phosphorous, affect AMF species diversity, thus constituting keyfactors for the similarity/dissimilarity of AMF communities in the M. tenuiflora root zoneamong sites.

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de Souza, T. A. F., Rodriguez-Echeverría, S., de Andrade, L. A., & Freitas, H. (2016). Arbuscular mycorrhizal fungi in mimosa tenuiflora (Willd.) Poir from Brazilian semi-arid. Brazilian Journal of Microbiology, 47(2), 359–366. https://doi.org/10.1016/j.bjm.2016.01.023

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