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A new rust fungus, Phragmidium punjabense sp. nov., is described on Rosa brunonii from the Punjab province in Pakistan. The species can be readily distinguished from other Phragmidium spp. on Rosa but is very similar to a number of species on Rubus that belong to the "Phragmotelium group" within Phragmidium. In addition to the new species Phragmidi...
Citations
... Puccinia is the largest genus in Pucciniales, comprised of more than 4,000 species that are characterized by developing pedicellate and two-celled teliospores [2]. The genus Phragmidium contains over 66 species of which seventeen Phragmidium species have been reported from Pakistan [3]. Abbottabad, a district of Khyber Pakhtunkhwa (KP), lies in the north of Pakistan and represents one of the growing regions in the context of rust fungi hitherto, over 66 species have been described in addition to new hosts and new local distribution records Murree, situated in the northwest of Pakistan, a diverse loristic region as well as one of the attractive sites of rust fungi is being explored for investigation of rust fungi, Swat and Murree regions were explored for the observation of rust fungi and as a result we found ive rust species on ive host plants, among them Rubus fruticosus host of Phragmidium bulbosum presented here as new host record from Pakistan [4]. ...
In 2018, a survey of rust fungi and their associated hosts was attempted in the thandiani regions of Pakistan. In this paper, we provided descriptions and illustrations of six rust species viz. Melampsora euphorbiae, Phragmidium barclayi, Puccinia ambegua, Pucciniia calcitraipae, Pucciniia mentha and Puccinia ustalis. The Melampsora euphorbiae, Puccinia ambegua, and Puccinia ustalis were collected as a new host record from Abbottabad. Most of the rust fungi were collected from herbaceous wild plants. This study suggests further exploration of the area of rust disease in order to assess the diversity of these fungi. This research work is an addition to available data related to the Urediniales of Pakistan having special reference to Abbottabad District, Khyber Pakhtunkhwa, Pakistan.
... Puccinia is the largest genus in Pucciniales, comprised of more than 4,000 species that are characterized by developing pedicellate and two-celled teliospores [2]. The genus Phragmidium contains over 66 species of which seventeen Phragmidium species have been reported from Pakistan [3]. Abbottabad, a district of Khyber Pakhtunkhwa (KP), lies in the north of Pakistan and represents one of the growing regions in the context of rust fungi hitherto, over 66 species have been described in addition to new hosts and new local distribution records Murree, situated in the northwest of Pakistan, a diverse loristic region as well as one of the attractive sites of rust fungi is being explored for investigation of rust fungi, Swat and Murree regions were explored for the observation of rust fungi and as a result we found ive rust species on ive host plants, among them Rubus fruticosus host of Phragmidium bulbosum presented here as new host record from Pakistan [4]. ...
... The biggest genus in the family Pucciniales, Puccinia has over 4,000 species that are distinguished by generating pedicillate and two-celled teliospores [2]. There are more than 66 species in the genus Phragmidium, and 17 of those have been found in Pakistan [3]. The rust fungi, which affect many angiosperm and gymnosperm trees as well as cereal and legume crops, are among the most pervasive plant infections [4]. ...
During 2018, survey of rust fungi and their associated host plants was attempted in thandiani regions of Pakistan. In this paper descriptions and illustrations of six rust species viz. Melampsora euphorbiae, Phragmidium barclayi, Puccinia ambegua, P. calcitraipae, P. mentha and P. ustalis have been provided on the hosts such as Euphrbia helioscopia, Rubus lasiocarpus, Gallium aprine, Cirsium vulgare, Origanum vulgare and Ranunculus muricatus. The Melampsora euphorbiae, Puccinia ambegua and Puccinia ustalis collected as a new host record from Abbottabad. This research work is an addition to available data related to the Urediniales of Pakistan with special reference to the Thandhiani area, Abbottabad District, Khyber Pakhtunkhwa.
... Based on morphological features or host associations, 1200 species belonging to 71 genera of 15 families were previously reported in China. Over 70 Phragmidium species have been described (Cummins 1931;Arthur 1934;Zhuang et al. 1998Zhuang et al. , 2003Zhuang et al. , 2005Zhuang et al. , 2012Wahyuno et al. 2001;Cummins and Hiratsuka 2003;Yang et al. 2015;Ali et al. 2017;Aime et al. 2018;Liu et al. 2018Liu et al. , 2019Liu et al. , 2020Ono and Wahyuno 2019;Aime and McTaggart 2021;Zhao et al. 2021). ...
In this study, four new species of Phragmidium were proposed based on morphological and molecular characters. In morphology, Phragmidium rosae-roxburghii sp. nov. was distinguished to related taxa by its unique square to diamond-shaped urediniospores; Ph. rubi-coreani sp. nov. differed from Ph. barclayi and Ph. cibanum because of teliospores with fewer cells and shorter pedicels; urediniospores of Ph. potentillae-freynianae sp. nov. were bigger than Ph. duchesneae-indicae ; and Ph. rosae-laevigatae sp. nov. produced bigger urediniospores than Ph. jiangxiense . The phylogenetic analyses based on the combination of two loci (ITS and LSU) also supported our morphological conclusion. In the meantime, three previously known species were also described herein.
... Phragmidium species typically have type 10 or 11 spermogonia, Calidion-type or Uredo-type uredinia, phragmosporous teliospores with two-three germ pores per cell of teliospore and Caeoma-type aecia (Cummins & Hiratsuka 2003). More than 70 taxa belonging to this genus are reported cosmopolitan (Cummins 1931, Arthur 1934, Hiratsuka 1935, Wahyuno et al. 2001, Cummins & Hiratsuka 2003, Zhuang et al. 2012, Yang et al. 2015, Ali et al. 2017, Liu et al. 2018, Liu et al. 2020. Eighteen species of Phragmidium are reported from Pakistan. ...
... (≡ Puccinia mucronata Pers.), which was found on Rosa. Almost 70 species of Phragmidium have been reported in the genus (Cummins 1931, Hiratsuka 1935, Wahyuno et al. 2001, Cummins and Hiratsuka 2003, Zhuang et al. 2012, Yang et al. 2015, Ali et al. 2017, Liu et al. 2018. Most of them are parasitic on plants of Potentilla, Rosa and Rubus (Dietel 1905). ...
... Reference sequences used in the paper were downloaded from GenBank and the GenBank accession numbers are listed in Table 1. Kuehneola uredinis was used as outgroup given its proposed relationship to Phragmidiaceae (Aime 2006, Ali et al. 2017. A maximum parsimony (MP) analysis was run using PAUP v.4.0b10 (Swofford 2003). ...
Phragmidium altaicum, a new causal fungus of a rose rust disease, is described and illustrated. The species, collected in Xinjiang Province, northwestern China, is well distinguished by its morphology and rDNA LSU and ITS sequences from the other Phragmidium species on Rosa. The new rust species is characterized primarily by 4–7-celled teliospores, bearing robust verrucae on the surface, aeciospore-surface structure of ‘Echinulate type 4,’ and urediniospore surface completely covered with echinulae with inapparent mushroom-shaped base. The sequence analysis showed that this species is closely allied to P. tuberculatum, but they differ in their morphological characteristics.
... Phragmidium species are parasitic on plants of the family Rosaceae, particularly those in the genera Potentilla, Rosa, and Rubus (Dietel 1905). More than 65 Phragmidium species have been established (Cummins 1931;Arthur 1934;Hiratsuka 1935;Wahyuno et al. 2001;Cummins and Hiratsuka 2003;Yang et al. 2015;Ali et al. 2017). Species identification in Phragmidium has traditionally been based on morphological characteristics of teliospores, urediniospores, and aeciospores (Zhuang 1989;Wahyuno et al. 2001;Zhuang et al. 2012). ...
... Reference sequences used in the paper were downloaded from GenBank and the GenBank accession numbers are listed in Table 1. Kuehneola uredinis was used as outgroup given its proposed relationship to Phragmidiaceae (Aime 2006; Ali et al. 2017). A maximum parsimony (MP) analysis was run using PAUP v.4.0b10 (Swofford 2003). ...
... Habitat/Distribution: Known from Rubus austrotibetanus and R. niveus in China; R. lasiocarpus in Pakistan and Simala Ali et al. 2017 Phragmidium butleri Syd, Ann. Mycol 5: 501 (1907). ...
Phragmidum spp. are rust fungi that are serious pathogens of plants in the Rosaceae. We characterized 15 Phragmidium species from Tibet, including 12 previously described and 3 new species. All the taxa, including the three new species (Ph. chayuensis, Ph. cibanum, Ph. zangdongii) are described and illustrated based on morphological characteristics. These taxa have multi-celled teliospores with firm pedicels. Phragmidium chayuensis is characterized by (5)7–9-celled teliospores with short papillae. Phragmidium cibanum is characterized by smooth teliospores that are distinctly constricted at the septa. Phragmidium zangdongii is characterized by large uredinia and 11–13-celled teliospores. Five types of urediniospore-surface structures were identified based on the gross shape of ornamentations and their distribution on the urediniospore wall. Molecular sequence data from the LSU rDNA analysis showed that the new taxa formed distinct clades independent from previously recorded species represented by LSU rDNA sequence data. The phylogenetic tree indicated that Phragmidium species are highly host specific.
... Puccinia, the largest genus in Pucciniales, comprised of more than 4,000 species which are characterized by developing pedicillate and two-celled teliospores (Mahadevakumar et al. 2016). The genus Phragmidium contains over 66 species of which seventeen Phragmidium species have been reported from Pakistan (Cummins & Hiratsuka 2003, Ali et al. 2017). Swat, district of Khyber Pakhtunkhwa (KP), lies in the north of Pakistan represent one of the growing regions in the context of rust fungi and hitherto, over 66 species have been described in addition with new hosts and new local distribution records (Ali et al. 2016). ...
During 2014, survey of rust fungi and their associated hosts was attempted in Swat and Murree regions of Pakistan. In this paper we provided descriptions and illustrations of five rust species viz. Puccinia nepalensis, P. melasmioides, Phragmidium bulbosum, Ph. butleri, and Ph. barclayi. Rubus fruticosus host of Phragmidium bulbosum collected as a new host record from Pakistan. The rust fungus, Puccinia nepalensis was sequenced using LSU and ITS DNA markers and consequently the sequences were deposited to GenBank as future barcode reference.
Rosa ‐associated fungi are rich in species and diverse in function, with many potential new taxa. However, only a few publications have reported Rosa ‐associated endophytic fungi using a combination of molecular systematics and morphology. Rosa roxburghii is an economically important source of medicine and food. We reported earlier the diversity and antimicrobial activities of the fungal endophytes of this plant, but further confirmation is needed for possible new taxa. In this study, we describe 10 novel species and two new host records isolated from healthy tissues of R. roxburghii while identifying three new combinations, all belonging to the Sordariomycetes. The new species described herein include Chaetomium rosifloricola , Chaetomium rosiradicicola , Chrysofolia fructicola , Coniella cili , Hypoxylon florendophyticum , Hypoxylon rosicaulendophyticum , Ilyonectria radicigena , Neopestalotiopsis caulicola , Neopestalotiopsis fructicola , and Seimatosporium endophyticum . Monochaetia bulbophylli , Neopestalotiopsis anacardii , and Neopestalotiopsis termitarii were introduced as new combinations, while Coniella quercicola and Hypoxylon pulicicidum were described as new host records on R. roxburghii . All the taxa have been described, illustrated, and phylogenetically analyzed, in addition to the lifestyles of each genus. Altogether, the results of this study have important implications for identifying novel endophytic fungi and developing potential applications of these fungi in the future.
Kuehneola japonica
and K. warburgiana are the only species of genus Kuehneola that parasitize plants belonging to genus Rosa (Rosaceae). Systematic revision of the genus Phragmidium and related genera by molecular phylogenetic analyses using nuc rDNA internal transcribed spacer (5.8S-ITS2 = ITS2) and nuc rDNA 28S (28S) sequences indicated that K. japonica and K. warburgiana belong to a group of Phragmidium species that also occur on Rosa. Morphological and molecular phylogenetic analyses revealed that these Kuehneola species were transferred to Phragmidium and renamed as P. japonicum and P. warburgianum. Two new Phragmidium species were also discovered on Rosa from China that could be distinguished from other species in the genus based on aeciospore or urediniospore morphology and phylogenetic placement. The first species, P. jiangxiense, is characterized by a urediniospore surface structure with stout spines that are basally embedded in the wrinkled spore wall. The second species, P. leucoaecium, is characterized by an aeciospore surface structure with irregularly elongated verrucae. Taxonomic descriptions and illustrations are provided.
