Members of this genus are pathogens on all major cereal crop species except rice, and some cause large economic losses. Files are available under licenses specified on their description page. Teliospore germination, basidiospore formation and the infection. The mallow rust puccinia malvacearum, for example, infects all native british species in the mallow malvaceae.
Leaves, stems and calyces outer parts of the flower can all be attacked. Teliospores magnified 2000 times and stained with eosin y whelan photography. Puccinia graminis appears in last week of november in south india and in march in north india. Hollyhock rust is caused by the fungus, puccinia malvacearum which can be introduced into a garden by.
When disease is severe large portions of the foliage are killed. Puccinia malvacearum farm fungal pathogens in olympia. Puccinia coronata is a plant pathogen and causal agent of oat and barley crown rust. Polyphyly and two emerging lineages in the rust genera. Changes in the spindle pole body spb and meiotic nuclei from interphase i through interphase ii in the hollyhock rustpuccinia malvacearum are analyzed ultrastructurally by threedimensional reconstructions from serial sections. Raised, bright yellow or orange pustules are visible on the upper leaf surface. Author links open overlay panel wolfgang maier a brenda d. Ultrastructural observations on the rust fungus puccinia. A thoroughly documented account of the ultrastructure of the meiotic spindle pole body spb cycle in a rust basidiomycota, uredinales is presented for the first time.
Polyphyly and two emerging lineages in the rust genera puccinia and uromyces. A pycnium was described and figured in one australian collection of puccinia malvacearum by waterhouse. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks. The threedimensional structure of the spb and spindle during meiosis in the hollyhock rust funguspuccinia malvacearum is analyzed from serial sections of preselected stages. Stub this article has been rated as stubclass on the projects quality scale. Coevolution with higher taxonomic host groups within the. A morphological and quantitative comparison has been made of the development of intracellular structures of the heteroecious rust, puccinia poarum, in tissues of its pycnialaecial host, tussilago farfara and of its uredinialtelial host, poapratensis. Ultrastructure of meiosis in the hollyhock rust fungus. Comments puccinia malvacearum is an autoecious and microcyclic rust, although there is one report of it producing spermogonia waterhouse 1953. During the summer, light chestnutbrown teliospores form in blisterlike pustules on the lower leaf surface, petiole and stem. According to the dictionary of the fungi 10th edition, 2008, the widespread genus contains about 4000 species. Pages in category puccinia the following 46 pages are in this category, out of 46 total.
Infection biology and aggressiveness of puccinia striiformis on resistant and susceptible wheat. Rust fungi infecting hollyhock and other plants in malveae are frequently intercepted at ports of entry to the usa, particularly puccinia malvacearum and p. Coevolution with higher taxonomic host groups within the pucciniauromyces rust lineage obscured by host jumps. Mid this article has been rated as midimportance on the. Intracellular structures of puccinia poarum on its.
Hollyhock rust is a fungal disease of the aerial parts of the plant, caused by puccinia malvacearum. Pdf pucciniamodiolae, a rust fungus pathogen of carolina. Fungicides for gardeners adobe acrobat pdf document outlining fungicides available to gardeners. These two species can be difficult to distinguish and can be further confused with other, less common species of microcyclic rust fungi infecting hollyhock. An autoecious pathogen, it can complete its life cycle using a single host. Wheat rusts caused by a fungus puccinia species are the main biotic constraints in our efforts to. Puccinia malvaceraum this rust disease can result in serious injury to hollyhocks althaea spp. Distribution maps of plant diseases, april edition 2. To describe and analyze the histopathological and histochemical aspects of cymbopogon citratus and its relation with the different stages of. This leaf pathogen was present over all observation period in all. The rust also occurs on mallow malva rotundifolia, a common weed, which can serve as a disease reservoir for the fungus and. Pdf on apr 1, 2002, armando lopez and others published. Interphase i nuclei undergo a coordinated migration and rotation during which the spbs approach the convex face of the lateral. The methanol leaf extracts of acacia nilotica, sida cordifolia, tinospora cordifolia, withania somnifer and ziziphus mauritiana showed significant antibacterial activity against bacillus subtilis, escherichia coli, pseudomonas fluorescens, staphylococcus aureus and xanthomonas axonopodis, puccinia malvacearum antifungal activity against aspergillus flavus 8.
The threedimensional structure of the spindle pole body spb and meiotic spindle during early metaphase i through telophase i inpuccinia malvacearum is analyzed ultrastructurally from serial sections. Some rusts are able to infect a wide range of hosts. The relatively unspecialized intracellular hyphae of pycnialaecial pustules differ from haustoria of uredinialtelial stages in. Here, we report a novel fungal strain able to hyperparasitize pst. Infected region of puccinia graminis is mainly stem, then leaf sheath, leaf blade and ear. This page was last edited on 27 february 2015, at 23. Because of the abbreviated life cycle, all microcyclic forms are autoecious. Puccinia malvacearum, also known as hollyhock or mallow rust, is a species within the genus puccinia known for attacking members of the family malvaceae. Puccinia malvacearum in monosporidial culture sciencedirect. Small brown spots develop on the underside of foliage. Puccinia malvacearum, also known as hollyhock or mallow rust, is a species within the genus. Life cycle and life strategy features of puccinia glechomatis. The disease will invariably develop on untreated hollyhocks, although it is worse during wet summer weather.
Puccinia malvacearum name synonyms leptopuccinia malvacearum bertero ex mont. During early metaphase i the spindle rotates from the perpendicular to a position oblique to the longitudinal axis and parallel to the sagittal plane of the cell. It is a relatively new disease of barley in north america. Learn about the comparison among puccinia graminis, puccinia recondita and puccinia striiformis. Puccinia malvacearum is known to also infect several species of the mallow family malvaceae, which includes the common or roundleaf mallow malva rotundifolia, a common weed. A cytological study of puccinia malvacearum from the sporidium to the teliospore.
Read ultrastructural observations on the rust fungus puccinia malvacearum in malva sylvestris ssp. It is by whitney cranshaw at colorado state university. Frontiers identification of a novel alternaria alternata. In this work he brings together and interprets a wealth of material, much of it the result of his own experiments, dealing with the sexual process in the rust fungi. Plants affected by the rust include abutilon, alcea hollyhock, hibiscus, lavatera, malva, malvastrum and sphaeralcea. Puccinia graminis, puccinia recondita and puccinia. Posts about puccinia malvacearum written by laidback gardener. The pathogen occurs worldwide, infecting both wild and cultivated oats. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Phakopsora pachyrhizi developing uredinia, and puccinia malvacearum developing telia. Eriksson has given an exhaustive account of his researches, extending over many years, of the distribution, nature, and lifehistory of the wellknown hollyhock rust. Puccinia arachidis puccinia emaculata puccinia hemerocallidis puccinia malvacearum puccinia veronicaelongifoliae uromyces apendiculatus. This article is within the scope of wikiproject fungi, a collaborative effort to improve the coverage of fungi on wikipedia.
Students of cryptogamic botany, plant pathologists, and biologists in general will welcome the posthumous publication of this last volume of professor a. Text is available under the creative commons attributionsharealike license. I77 puccinia malvacearum in monosporidial culture by dorothy ashworth royal houoway college with plates viii and ix and 7 textfigures during recent years the attention of botanists has again been drawn to the rusts by the suggestive results of craigies experiments with puccinia helianthi and p. Puccinia malvacearum article about puccinia malvacearum. Observations on cotton rust puccinia stakmanii under severe disease conditions. Ashworthpuccinia malvacearum in monosporidial culture.
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