Nadja Santos Vitoria

Endocalyx melanoxanthus var. melanoxanthus (Ascomycota): new to Brazil and three new hosts.

Endocalyx melanoxanthus var. melanoxanthus was recovered during a survey of microfungi on palms in Atlantic Rainforest areas of Northeast Brazil. Three new hosts were identified for the fungus, newly reported for Brazil.

Arecomyces New to Brazil, Including A. attaleae sp. nov.

Abstract Arecomyces is a genus only known from palms and in this paper is reported for the first time from Brazil. Arecomyces attaleae is a new species from Attalea funifera, a palm in Bahia State, Brazil. It is described and illustrated and compared with congeneric species. This new taxon is distinguished mainly by its large ascospores. Arecomyces bruneiensis was found on Elaeis guineensis in Pernambuco State, Brazil and is reported for the first time in South America. A synopsis of all known Arecomyces species is also provided.

A simplified DNA extraction method for PCR analysis of Camarotella spp.

A extracao e amplificacao de DNA sao etapas fundamentais para a aplicacao de metodos moleculares e para tal, a origem do material e relevante. As especies do genero Camarotella que causam as lixas do coqueiro e outras palmeiras sao biotroficas e o crescimento em meio artificial e controverso, embora Oliveira et. al, (2004) tenham registrado seu cultivo in vitro, utilizando meio liquido completo. No entanto, nao ficou provado que o micelio formado correspondia ao micelio de Camarotella. Em consequencia das dificuldades com o cultivo dos agentes etiologicos das lixas, foi otimizado um protocolo para extracao de DNA genomico a partir do himenio ascogeno in natura e um protocolo de PCR para sua amplificacao. Nossos resultados sao importantes para o estudo da familia Phyllachoraceae, pois possibilitara a analise molecular que, nessa familia, e limitada pela dificuldade de obtencao de DNA.

Neolinocarpon attaleae sp. nov. on Attalea funifera (Arecaceae) from Brazil

Neolinocarpon attaleae is described from the palm Attalea funifera collected in Brazil. This species is illustrated and compared with similar species. A key to all species of Neolinocarpon is provided.