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Coiled hair-like extrusions of teliospores of Masseeëlla capparis on Flueggea virosa subsp. melanthesoides (dried specimens) . a on the upper leaf surface (DNAP 4605). b-d on the lower leaf surface (seen under stereo microscope). Bar=0.5 mm. b DNAP 4627. c-d DNAP 4489
Source publication
The rust fungus Masseeëlla capparis is reported for the first time in Australia on Flueggea virosa (Phyllanthaceae). This is the first species of Masseeëlla found in Australia. The rust is described and illustrated from Australian specimens. A discussion on species of Masseeëlla is provided. A reconstructed phylogeny with the Large Subunit region o...
Citations
... Teleomorphic species include Coleosporium phyllanthinum Syd. (Sydow 1937), Masseeella capparis (Hobson bis ex Cooke) Dietel (Liberato et al. 2014), Masseeella narasimhanii Thirum. (Thirumalachar 1943), Phakopsora fenestrala (Arthur) Arthur (Arthur 1917), P. phyllanthi Dietel (Dietel 1910 (Buriticá 1999). ...
Two new species of Pucciniales fungi on plants of the Fabid clade are described from samples deposited in the herbarium of Museu Paraense Emilio Goeldi, collected in the state of Amapá, in the Brazilian Amazon. They are Aecidium margaritariae found on Margaritaria nobilis (Phyllanthaceae), and Uromyces amapaensis on Jatropha gossypiifolia (Euphorbiaceae). The microstructures of the specimens were analyzed using optical and scanning electron microscopy. Aecidium margaritariae is characterized by the presence of globose, subglobose to slightly ellipsoid aeciospores with warty walls and smooth areas usually in the basal portion. Uromyces amapaensis is distinguished by the presence of uredinia with paraphyses which are thickened and rounded at the tip, and pedicellate and smooth teliospores. Descriptions, illustrations, and taxonomic comments are presented for each species.
... Cronartium ribicola DQ354560 Aime (2006) Dasyspora echinata JF263462 Beenken et al. (2012) Dasyspora gregaria JF263474 Beenken et al. (2012) Dasyspora guianensis JF263479 Beenken et al. (2012) Dasyspora winteri JF263492 Beenken et al. (2012) Endoraecium phyllodiorum KJ862324 McTaggart et al. (2015a) Endoraecium tierneyi KJ862335 McTaggart et al. (2015a) Hamaspora acutissima KT199398 McTaggart et al. (2015c) Hemileia vastatrix DQ354566 Aime (2006) Kernkampella breyniae KJ862346 McTaggart et al. (2015a) Maravalia cryptostegiae KT199401 McTaggart et al. (2015c) Masseeëlla capparis JX136798 Liberato et al. (2014) Phakopsora annonae-sylvaticae KF528998 Beenken (2014) Phakopsora cherimoliae KF528012 Beenken (2014) Phakopsora myrtacearum KP729473 Maier et al. (2015) Phakopsora pistila KF528028 Beenken (2014) Phakopsora rolliniae KF528036 Beenken (2014) Phragmidium mexicanum DQ354553 Aime (2006) Prospodium lippiae DQ354555 Aime (2006) Prospodium tuberculatum KJ396195 Pegg et al. (2014b) Puccinia graminis KM249852 McTaggart et al. (2014b) Puccinia lagenophorae KF690700 McTaggart et al. (2014a) Puccinia psidii KT590038 This study Puccinia psidii KM282154 Machado et al. (2015b) Puccinia psidii KF318453 Pegg et al. (2014b) Puccinia psidii KF318443 Pegg et al. (2014b) Puccinia psidii KF318447 Pegg et al. (2014b) Puccinia stylidii KJ622215 McTaggart et al. (2014a) Puccinia ursiniae KF690705 McTaggart et al. (2014a) Ravenelia neocaldoniensis KJ862348 McTaggart et al. (2015a) Sphaerophragmium sp. KJ862350 McTaggart et al. (2015a) Sphenorchidium polyalthiae JF263493 Beenken et al. (2012) Thekopsora minima KC763340 McTaggart et al. (2013) Uredinopsis pteridis KM249869 McTaggart et al. (2014b) Uromycladium acaciae KR612235 McTaggart et al. (2015b) Uromycladium simplex KJ632990 Doungsa-ard et al. (2015) A.R. McTaggart et al. ...
Over the past decade, Puccinia psidii, which causes rust on species of Myrtaceae, has spread rapidly to new areas and is now widespread. Quarantine has done little to prevent its movement through the Americas, the Pacific, Africa, and in this report, South-East Asia. Puccinia psidii is reported for the first time from Indonesia on two genera of Myrtaceae, namely Eucalyptus and Melaleuca. Its identity was confirmed using morphology, a molecular barcode comparison to an epitype specimen, and with a molecular phylogenetic approach. Comparison of seven microsatellite markers indicates that the rust genotype in Indonesia and Australia is identical. The potential impacts of P. psidii in South-East Asia to the natural environment and plantation forestry are discussed in light of this first report from the region.
... There are several additional genera that have been reported from Australia: Atelocauda (Walker 2001), Bibulocystis (Walker et al. 2006), Cerotelium (Simmonds 1966), Coleosporium (Anon. 2014), Cystopsora (Sydow 1937b), Dasturella (Johnson 1985), Diabole (Burrows et al. 2012), Goplana (Langdon & Herbert 1944), Kernkampella (Walker et al. 2006), Maravalia (Tomley & Evans 2004), Masseeëlla (Liberato et al. 2014), Miyagia (Cooke & Dube 1989), Nyssopsora (Sydow 1938), Olivea (Daly et al. 2006), Phakopsora (Weinert et al. 2003), Prospodium (Thomas et al. 2006), Pucciniastrum (Shivas 1989), Ravenelia (Walker 1983), Sphaerophragmium (Alcorn & Walker 1996), Thekopsora (McTaggart et al. 2013), and Uredopeltis (Walker & Shivas 2004). The keys to the smut and rust fungi of Australia are the first online, taxonomically focused diagnostic tools created for the identification of Australian plant pathogenic fungi. ...
Interactive identification keys for Australian smut fungi (Ustilaginomycotina and Pucciniomycotina, Microbotryales) and rust fungi (Pucciniomycotina, Pucciniales) are available online at http://collections.daff.qld.gov.au. The keys were built using
Lucid software, and facilitate the identification of all known Australian smut fungi (317 species in 37 genera) and 100 rust fungi (from approximately 360 species in 37 genera). The smut and rust keys are illustrated with over 1,600 and 570 images respectively. The keys are designed to assist
a wide range of end-users including mycologists, plant health diagnosticians, biosecurity scientists, plant pathologists, and university students. The keys are dynamic and will be regularly updated to include taxonomic changes and incorporate new detections, taxa, distributions and images.
Researchers working with Australian smut and rust fungi are encouraged to participate in the ongoing development and improvement of these keys.
Two Cerrado rust fungi, Phakopsora rossmaniae and Aplopsora hennenii, described in 1993 and 1995 and originally assigned to families Phakopsoraceae and Ochropsoraceae, respectively, were subjected to molecular phylogenetic analyses using fragments of the nuc 28S and 18S rDNA and mitochondrial cytochrome c oxidase subunit 3 (CO3) gene. Although both taxa were morphologically well placed in their original genera, they were shown to belong in a strongly supported new lineage within the Raveneliineae distant from the Phakopsoraceae and Ochropsoraceae. Therefore, we properly treated this lineage as the new genus Cerradopsora now harboring C. rossmaniae (type species) and C. hennenii. However, this novel phakopsoroid genus remains in uncertain familial position without support to be included in any of the families that share space within the Raveneliineae.
Gymnosporangium species ( Pucciniaceae , Pucciniales , Basidiomycota ) are the causal agents of cedar-apple rust diseases, which can lead to significant economic losses to apple cultivars. Currently, the genus contains 17 described species that alternate between spermogonial/aecial stages on Malus species and telial stages on Juniperus or Chamaecyparis species, although these have yet to receive a modern systematic treatment. Furthermore, prior studies have shown that Gymnosporangium does not belong to the Pucciniaceae sensu stricto (s.str.), nor is it allied to any currently defined rust family. In this study we examine the phylogenetic placement of the genus Gymnosporangium . We also delineate interspecific boundaries of the Gymnosporangium species on Malus based on phylogenies inferred from concatenated data of rDNA SSU, ITS and LSU and the holomorphic morphology of the entire life cycle. Based on these results, we propose a new family, Gymnosporangiaceae , to accommodate the genus Gymnosporangium , and recognize 22 Gymnosporangium species parasitic on Malus species, of which G. lachrymiforme , G. shennongjiaense , G. spinulosum , G. tiankengense and G. kanas are new. Typification of G. asiaticum , G. fenzelianum , G. juniperi-virginianae , G. libocedri , G. nelsonii , G. nidus-avis and G. yamadae are proposed to stabilize the use of names. Morphological and molecular data from type materials of 14 Gymnosporangium species are provided. Finally, morphological characteristics, host alternation and geographical distribution data are provided for each Gymnosporangium species on Malus .
Prior phylogenetic studies of rust fungi have shown the Phakopsoraceae as polyphyletic. However, most of the ca. 13 genera currently placed in Phakopsoraceae s.l. have not been the subject of phylogenetic analyses. In this study we examine the placement of several species of Crossopsora (Phakopsoraceae) from newly generated nuc 28S rDNA (28S) sequence data. While the type species, C. ziziphi, cannot be excluded from the Phakopsoraceae s.s., several other species, including C. byrsonimae, are not congeneric with the type. Herein we describe the new genus Crossopsorella, based on C. byrsonimae as the type, to accommodate specimens of this species found in four different Byrsonima species.
The aim of this study was to determine the evolutionary time line for rust fungi and date key speciation events using a molecular clock. Evidence is provided that supports a contemporary view for a recent origin of rust fungi, with a common ancestor on a flowering plant.
Divergence times for > 20 genera of rust fungi were studied with Bayesian evolutionary analyses. A relaxed molecular clock was applied to ribosomal and mitochondrial genes, calibrated against estimated divergence times for the hosts of rust fungi, such as Acacia (Fabaceae), angiosperms and the cupressophytes.
Results showed that rust fungi shared a most recent common ancestor with a mean age between 113 and 115 million yr. This dates rust fungi to the Cretaceous period, which is much younger than previous estimations. Host jumps, whether taxonomically large or between host genera in the same family, most probably shaped the diversity of rust genera. Likewise, species diversified by host shifts (through coevolution) or via subsequent host jumps. This is in contrast to strict coevolution with their hosts.
Puccinia psidii was recovered in Sphaerophragmiaceae, a family distinct from Raveneliaceae, which were regarded as confamilial in previous studies.
