Uredinales sobre Blechnaceae, Thelypteridaceae, Schizaeaceae, Myrtaceae, Oxalidaceae, Rhamnaceae, Rubiaceae, Sapindaceae, Smilacaceae e Vitaceae da Reserva Florestal "Armando de Salles Oliveira", São Paulo, SP, Brasil

Júnior, Anibal Alves de Carvalho; Figueiredo, M. B.; Furtado, Edson Luiz; Hennen, Joe F.

doi:10.1590/s2236-89062007000400004

Hoehnea

2007

DOI: 10.1590/s2236-89062007000400004

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Uredinales sobre Blechnaceae, Thelypteridaceae, Schizaeaceae, Myrtaceae, Oxalidaceae, Rhamnaceae, Rubiaceae, Sapindaceae, Smilacaceae e Vitaceae da Reserva Florestal "Armando de Salles Oliveira", São Paulo, SP, Brasil

Anibal Alves de Carvalho Júnior

M. B. Figueiredo

Edson Luiz Furtado

et al.

Abstract: O objetivo do presente trabalho é apresentar as espécies de Uredinales sobre membros de Blechnaceae, Thelypteridaceae, Schizaeaceae, Myrtaceae, Oxalidaceae, Rhamnaceae, Rubiaceae, Sapindaceae, Smilacaceae e Vitaceae da Reserva Florestal da Cidade Universitária "Armando de Salles Oliveira" São Paulo, SP, Brasil. As espécies descritas e ilustradas bem como seus respectivos hospedeiros são: Desmella anemiae Syd. & P. Syd. sobre Blechnum occidentale L. (Blechnaceae) e Thelypteris dentata (Forssk.) E. St. John … Show more

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Cited by 3 publications

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Species richness, taxonomy and peculiarities of the neotropical rust fungi: are they more diverse in the Neotropics?

Berndt

2012

Biodivers Conserv

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The species richness of rust fungi (Pucciniales or Uredinales) in the neotropics is reviewed. Species numbers are presented for all neotropical countries and rust-plantratios calculated. It is discussed whether the ratio for a given region can be explained by the species richness of vascular plants alone or whether it is caused by additional factors. In the first case, ratios should apply globally and vary only slightly; in the second case, more diverging ratios are expected. Observed ratios ranged between 1:16 and 1:124 in the neotropics. The large differences are certainly influenced by unequal levels of investigation, rendering interpretation difficult. Differences seem also to be influenced by the taxonomic composition of floras regarding the percentage of host families or genera bearing different numbers of rust species. This indicates that rust species richness is not driven solely by plant species richness. Ratios calculated for Switzerland, Austria and Japan are distinctly higher than for the neotropics indicating that certain temperate regions are proportionally richer in rust fungi than the neotropics. Uredinial states and short-cycled rust species prevail in the neotropics. The preponderance of uredinial states may be due to the heterogeneous spatial composition of certain vegetation types in the wet tropics. Shortcycled rusts may be adapted to a pronounced seasonality that can be encountered in many drier neotropical biomes. Future research needs to fill our knowledge gaps on the taxonomy and ecology of neotropical rust fungi are discussed.

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Species richness, taxonomy and peculiarities of the neotropical rust fungi: are they more diverse in the Neotropics?

Berndt

2012

Biodivers Conserv

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Rapidly expanding host range for Puccinia psidii sensu lato in Australia

Carnegie

Lidbetter

2011

Australasian Plant Pathol.

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A rust affecting Myrtaceae was recently detected in New South Wales, Australia. Based on urediniospore morphology and host range, it was identified as Uredo rangelii, a taxon regarded as a member of the eucalyptus/ guava rust (Puccinia psidii sensu lato) complex, although confusion currently surrounds its taxonomy. The exotic rust was given the common name of myrtle rust to distinguish it from eucalyptus/guava rust. The more recent discovery of teliospores in NSW that match those of P. psidii sensu stricto indicates the rust in Australia is a strain (with tonsured urediniospores) of P. psidii s.l. Outside Australia, P. psidii has a wide host range within Myrtaceae, being reported from 129 species in 33 genera, and is very damaging in South and Central America-including in eucalypt plantations in Brazil-the Caribbean and in Florida and Hawaii. To ascertain the potential threat to forestry in Australia posed by the introduced rust, we tested key forestry species, as well as key known hosts of eucalyptus/ guava rust, in artificial inoculation experiments. We showed that several species of Eucalyptus are susceptible (viz. E. pilularis, E. cloeziana, E. agglomerata and E. grandis), as is Melaleuca quinquenervia. Observations during testing revealed a lengthened latent period (from inoculation until pustule formation and eruption) of four to five weeks during winter. Here we also report on observations on new hosts from surveys in NSW under the emergency response that followed the detection of the exotic rust, and surveys in NSW and Queensland following the cessation of the emergency response. In Australia, P. psidii s.l. has currently been found on 107 host species in 30 genera during surveys, including species in Angophora, Asteromyrtus, Tristaniopsis, Ugni, Uromyrtus and Xanthostemon. Species under cultivation (in nurseries and gardens) that are severely affected include Gossia inophloia, Agonis flexuosa, Syzygium jambos and S. anisatum while species that are severely damaged in native bushland include Rhodamnia rubescens, Rhodomyrtus psidioides, Choricarpia leptopetala and Melaleuca quinquenervia.

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Fungos causadores de ferrugens (Uredinales) em áreas de cerrado no estado de São Paulo, Brasil

Júnior

Hennen

et al. 2008

Rodriguésia

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RESUMO O estudo das Uredinales de tres áreas de cerrado, nas Estações Experimentais de Moji-Mirim-SP, de Moji-Guaçu-SP e de Luís Antonio-SP, foi realizado com o objetivo de ampliar o conhecimento sobre esse importante grupo de patógenos vegetais. Estas áreas contêm remanescentes de vegetação de cerrados no estado de São Paulo e representam uma amostra importante da biodiversidade deste ecossistema. Com base em 1.176 espécimes de Uredinales coletados entre 1975 e 1999, foram identificados 128 gêneros de plantas hospedeiras, distribuídas em 49 famílias botânicas. A partir deste material foram identificadas 157 espécies de patógenos distribuídas em 36 gêneros, sendo os mais freqüentes as especies de Puccinia (53), Uromyces (19), Aecidium e Phakopsora (10), Prospodium (8), Uredo (6), Crossopsora e Ravenelia (5) e Coleosporium (4). O trabalho inclui uma listagem em ordem alfabética das espécies de Uredinales seguidas da citação original e do tipo nomenclatural de cada binômio quando disponível, novas notações para os ciclos de vida baseadas na escola ontogênica, os sinônimos e os dados dos espécimes coletados, bem como um índice de hospedeiros. Espécimes foram depositados nos herbários do Instituto Biológico (IBI), do Botanical Research Institute of Texas, USA (BRIT) e do Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (RB).

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Uredinales sobre Blechnaceae, Thelypteridaceae, Schizaeaceae, Myrtaceae, Oxalidaceae, Rhamnaceae, Rubiaceae, Sapindaceae, Smilacaceae e Vitaceae da Reserva Florestal "Armando de Salles Oliveira", São Paulo, SP, Brasil

Cited by 3 publications

References 8 publications

Species richness, taxonomy and peculiarities of the neotropical rust fungi: are they more diverse in the Neotropics?

Species richness, taxonomy and peculiarities of the neotropical rust fungi: are they more diverse in the Neotropics?

Rapidly expanding host range for Puccinia psidii sensu lato in Australia

Fungos causadores de ferrugens (Uredinales) em áreas de cerrado no estado de São Paulo, Brasil

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