Mauricio Salazar Yepes

New rust fungi records (Uredinales) from Brasil, collected at the Itatiaia National Park.

From recent collections of Uredinales undertaken at Itatiaia National Park and in environmental protection areas around this park, new records for Brazil were identified: Dicheirinia binata (Berkeley & Curtis) Arthur, Maravalia manettiae Jorstad, Prospodium bignoniacearum ( Spegazzini) Cummins, Puccinia ancizari Mayor, Puccinia investita Schweinitz, Puccinia lasiacidis Kern, Puccinia mandevillae Jackson & Holway and Uredo chusqueae Pardo-Cardona. These species had been reported in several countries adjacent to Brazil. Moreover, after careful literature analysis, synonymization of Puccinia interjecta Jackson to Puccinia ancizari Mayor is proposed. These collections are increasing the Brazilian specimens and those of the of the Instituto de Pesquisas Jardim Botânico do Rio de Janeiro Herbarium (RB).

Complete mitochondrial genome sequence of the common bean anthracnose pathogen Colletotrichum lindemuthianum

Abstract Colletotrichum lindemuthianum is the causal agent of anthracnose in common bean (Phaseolus vulgaris), one of the most limiting factors for this crop in South and Central America. In this work, the mitochondrial sequence of a Colombian isolate of C. lindemuthianum obtained from a common bean plant (var. Cargamanto) with anthracnose symptoms is presented. The mtDNA codes for 13 proteins of the respiratory chain, 1 ribosomal protein, 2 homing endonucleases, 2 ribosomal RNAs and 28 tRNAs. This is the first report of a complete mtDNA genome sequence from C. lindemuthianum

The CD1/CD2 marker for specific detection of Colletotrichum lindemuthianum is an iron transporter pseudogene

Colletotrichum lindemuthianum, the causal agent of anthracnose in common bean (Phaseolus vulgaris), is one of the most yield-limiting factors worldwide. Anthracnose affects the quality of pods by inducing black, sunken cankers and can also affect petioles, leaf veins and stems where it induces the typical anthracnose sunken lesions. A few years ago, a duplex PCR method that combines amplification of an ITS rDNA segment (CY1/CY2) together with an uncharacterized RAPD-derived amplicon (CD1/CD2) was developed for specific detection of C. lindemuthianum. This study shows that the CD1/CD2 marker corresponds to a portion of an iron permease (Ftr1) pseudogene in the vicinity of the gene encoding for a polyhydroxyproline-rich protein in Colletotrichum. Discrimination with Colletotrichum orbiculare is due to a 15 nt deletion in the CY1 annealing region. The potential of using this genomic region for phylogenetic analysis of the C. orbiculare species complex and detection of their related species is discussed.

Caetea, a new genus of Pucciniales on Piptadenia (Fabaceae) from Brazil

A new genus of rust fungi (Basidiomycota, Pucciniales), with species type Caetea itatiaiaensis, was collected on Piptadenia (Fabaceae) at the Parque Nacional do Itatiaia in the Serra da Mantiqueira, states of Rio de Janeiro and Minas Gerais, Brazil. This genus is delimited as (i) three-celled teliospores borne on a single pedicel each with a corresponding apical cell and (ii) apical cells giving rise to distally capitate cysts that overhang the teliospore cells.

Blastospora in the Americas: a new combination and anamorphic genus and species

This paper presents the new teleomorphic combination Blastospora colombiana as well as a description of a new anamorph genus Pelastoma with two species, all on Apocynaceae from Central and South America.

Two new Uredinales in the Phakopsoraceae on Fabaceae from Brazil

Two new species of rust fungi (Basidiomycota, Uredinales) on Fabaceae from Minas Gerais, Brazil, are proposed. Cerotelium galactiae (on Galactia martii) is the first record of Cerotelium on Fabaceae from South America. Phakopsora sennae (on Senna bicapsularis) is the second Neotropical species of Phakopsora on genus Senna.