SciELO - Scientific Electronic Library Online

vol.26 issue4Use of arbuscular mycorrhizal fungi (AMF) to promote the growth of sugar apple seedlings (Annona squamosa L. Annonaceae)Effects of leaf herbivory on the bromeliad Aechmea blanchetiana: a study of selective feeding by the scraper Acentroptera pulchella author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Acta Botanica Brasilica

Print version ISSN 0102-3306


MELLO, Catarina Maria Aragão de et al. Diversity of arbuscular mycorrizal fungi in an area of Caatinga, PE, Brazil. Acta Bot. Bras. [online]. 2012, vol.26, n.4, pp.938-943. ISSN 0102-3306.

The objective of this work was to determine the infectivity and richness of AMF and the mycorrhizal conditions of the vegetation in a preserved area of Caatinga. Soil and root samples were taken in two subareas in the municipality of Triunfo, PE. The roots were stained with Trypan blue, and observed with a microscope to determine if colonization of mycorrhizal fungi was present. Glomerospores were extracted from soil, counted, mounted on microscope slides and the AMF species were identified. The plants from the area showed < 10% colonization. The number of glomerospores (<1 g-1 soil) did not differ between the subareas although in one area the amount of P in the soil was three times higher than in the other. The number of AMF propagules varied from 64 to 70 cm-3 in the soil. Sixteen taxa of AMF were registered and Glomus was the most representative genus, with seven species. Pacispora boliviana is reported for the first time in Brazil. The high amount of P probably contributes to the low values of propagules, colonization, infectivity and richness of AMF in the area. AMF have been commonly found in the Brazilian semiarid region and species of Glomus are predominant in this environment.

Keywords : Glomeromycota; Occurrence; Semi-arid.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License