Abstract Cenostigma pyramidale is a native legume of the Brazilian semiarid region which performs symbiotic association with arbuscular mycorrhizal fungi (AMF), being an excellent model for studying genes associated with tolerance against abiotic and biotic stresses. In RT-qPCR approach, the use of reference genes is mandatory to avoid incorrect interpretation of the relative expression. This study evaluated th...
Abstract The Global Strategy for Plant Conservation (GSPC) was established by the Conference of Parties in 2002 to decrease the loss of plant diversity, reduce poverty and contribute to sustainable development. To achieve this overarching goal, the GSPC has established a series of targets, one of which is to ensure that plant diversity is well understood, so that it can be effectively conserved and used in a su...
RESUMO Programas de revegetação de áreas degradadas por mineração visam recompor os processos essenciais do solo e ajudar na recuperação das comunidades fúngicas associadas. O objetivo deste estudo foi determinar a composição da comunidade de fungos filamentosos em áreas costeiras naturais e revegetadas de Mata Atlântica e fornecer informações sobre a regeneração da micobiota do solo em ambientes em recuperação...
Foi determinada a ocorrência de espécies de fungos micorrízicos arbusculares (FMA) em áreas nativa (AN) e impactada (AI) pela mineração de gesso em Araripina, PE, Brasil, utilizando como culturas-armadilha: sorgo e amendoim. Os esporos de FMA foram caracterizados morfologicamente para identificação ao nível de espécie. DNA foi extraído de esporos para caracterização molecular a partir de sequencias da região IT...
ABSTRACT Caatinga is an exclusively Brazilian biome with areas in accentuated process of desertification. Arbuscular mycorrhizal fungi (AMF) act in plant succession by favoring the establishment of plant species typical of successional stages and by accelerating recovery leading to a climax stage. The objective of the present work was to evaluate the occurrence and diversity of AMF in successional stages of caa...
We analyzed specimens identified as Amanita muscaria, some recently collected and others already deposited in herbaria, in Brazil. We concluded that two subspecies of A. muscaria occur in Brazil: A. muscaria var. muscaria; and A.muscaria var. flavivolvata. The first taxon was found in association with Castanea sativa, and the second (one specimen only) was found in association with Pinus and Eucalyptus spp. Mor...
The main goal of this study was to determine the diversity and activity of arbuscular mycorrhizal fungi (AMF) in an area degraded by limestone mining within the semi-arid region of Brazil known as the caatinga (shrublands). Near a limestone quarry, we selected two areas of caatinga (preserved and degraded) for study. The number of glomerospores did not differ significantly between the two areas. There was a tre...
Nineteen taxa of Mucorales, belonging to Absidi, Apophysomyces, Cunninghamella, Fennellomyces, Lichtheimi, Mucor, Mycotypha, Rhizopus and Syncephalastrum were isolated from 36 composite soil samples in three semiarid areas in the State of Pernambuco (Triunfo, Cabrobó and Belém de São Francisco), Northeast Brazil, which are characterized by Caatinga vegetation. Triunfo is preserved, whereas Cabroró and Belém de ...
O objetivo deste trabalho foi o de determinar a infectividade, a riqueza de FMA e a condição micorrízica da vegetação em área de Caatinga não antropizada. Coleta de solo e raízes foi realizada em Triunfo/PE. Raízes foram examinadas para determinação da colonização micorrízica. O número mais provável (NMP) de propágulos infectivos de FMA foi estimado por diluições sucessivas do solo e a utilização de milho (Zea ...