Synopsis of fungi listed as regulated plant pests by the usdaaphis. Puccinia horiana is the causal agent of chrysanthemum white rust or japanese rust. Ae development of symptoms and pustules of the rust pathogen puccinia horiana on the surface of an infected chrysanthemum leaf. This exotic pathogen has made occasional appearances in the u. This microcyclic autoecious rust has a quarantine status and can cause major damage in the commercial production of chrysanthemum x morifolium. Pcrbased assays for the detection of puccinia horiana on. Puccinia mccleanii on gladiolus known only from type rhacodiella vitis on grape known only from type septoria melanosa on grape reported in north america. Phylogenetic relationships of puccinia horiana and other. By 42 dai necrosis is apparent in the vicinity of the pustules. White rust had not been found in the united states until midseptember of 1977.
Aecidium valerianellae puccinia horiana puccinia mccleanii pucciniastrum actinidiae pucciniastrum areolatum. Puccinia horiana henn description telia on lower leaf surface, circular, 0. An extremely low level of allelic diversity was observed in a geographically diverse set of eight isolates. Puccinia horiana, causal agent of the disease commonly known as chrysanthemum white rust cwr, is a quarantinesignificant fungal pathogen of chrysanthemum in the united states and indigenous to asia. Puccinia horiana on chysanthemum outbreaks in us greenhouses eradicated. Isolates of the most important puccinia species that have been reported on chrysanthemum. Jan 01, 2018 the obligate biotrophic pathogen puccinia horiana is the causal agent of chrysanthemum white rust. Characterization and detection of puccinia horiana on. Sporulation capacity and longevity of puccinia horiana.
On the incubation period of puccinia horiana springerlink. Mature, necrotic lesions on the upper leaf surface of chrysanthemum due to puccinia horiana. Puccinia horiana is a microcyclic, autoecious rust, meaning that the fungus has two known spore stages. The focus of this study was on puccinia horiana, due to its quarantine status and its impact in commercial chrysanthemum production. Chrysanthemum plants, growing in vitro, were infected with spores of puccinia horiana without cross contamination by fixing the. It was previously reported to be controlled by lecanicillium lecanii, cladosporium sphaerospermum, c. Introduction puccinia horiana eppocabi, 1997 is the causal organism of chrysanthemum white rust, an economically important disease of florists chrysanthemum dendranthema. Characterization and detection of puccinia horiana on chrysanthemum for resistance breeding and sustainable control. Infection mainly starts at the upper surface of the leaf and causes pale green to yellow spots up to 4 mm in diameter and then forms raised buff or pinkish pustules on the lower surface of the leaf. Recent studies in this laboratory have focused on chrysanthemum. The effectiveness of funqicides in the control of white.
Pcrbased assays for the detection of puccinia horiana on chrysanthemums. Molecular detection of puccinia horiana in chrysanthemum x. Plants were treated 4 times at a 10 day interval and infested plants were placed. These materials may be used as long as the original author is given credit. The establishment of a cooperation program between the colombian institute of agriculture, ica, and the colombian association of flower exporters, asocolflores, has helped in the design and application of coordinated strategies for both, prevention and eradication of the chrysanthemum white rust puccinia horiana henn. A major threat in commercial chrysanthemum production is chrysanthemum white rust, caused by the quarantine fungus puccinia. All structured data from the file and property namespaces is available under the creative commons cc0 license. Rust fungi basidiomycota, pucciniomycotina are obligate parasites that infect many species of vascular plants 1, 2. Pdf first report of chrysanthemum white rust puccinia. Media in category puccinia horiana the following 3 files are in this category, out of 3 total. All structured data from the file and property namespaces is available under the.
Pdf identification and characterization of pathotypes in. Puccinia horiana, the causal agent of chrysanthemum white rust, is a pathogen of quarantine status in many countries where chrysanthemum. A composition containing a compound represented by formula i, and at least one type of compound selected from a group consisting of pyriofenone, metrafenone, cyflufenamid, quinoxyfen, and. Chrysanthemum white rust puccinia horiana hennings 1901. Uit veldwaarnemingen werd afgeleid dat het inoculum van deze schimmel over een. Chrysanthemum is currently one of the most important ornamental crops in different parts of the world, where it is either grown as cut flowers or as potted plants. In this article we will discuss about puccinia graminis. Closed download pest rating proposal authorresponsible party.
Full text pdf 499k abstracts references6 citedby2 to propagate and maintain the pathogen, puccinia horiana p. The disease was completely suppressed in the combinations with plantvax, saprol, calirus, bayleton 5 wp, baycor and vigilex. Chrysanthemum white rust puccinia horiana chrysanthemum white rust cwr is a usda quarantined plant pathogen that poses a potential trade barrier to growers of chrysanthemums in virginia if introduced. Pdf characterization and detection of puccinia horiana. Puccinia horiana pucchndocuments eppo global database.
Puccinia horiana, the causal agent of chrysanthemum white rust, is a pathogen of quarantine. Puccinia triticina wheat leaf rust, also known as brown rust puccinia punctiformis canada thistle rust 3 the rust species puccinia obtegens has shown some promise for controlling canada thistle, but it must be used in conjunction with other control measures to be effective. First report of chrysanthemum white rust puccinia horiana in india article pdf available in plant disease 999. Uredinales common names chrysanthemum white rust rouille b.
Teliosporeinducing activity for wheat leaf rust in the. Synopsis of fungi listed as regulated plant pests by the. However, it has since spread rapidly on infected imported cuttings and is now a feared and serious disease in nurseries in europe, frequently causing complete loss of glasshouse chrysanthemum crops. California pest rating proposal for chrysanthemum white rust puccinia horiana hennings 1901 pest rating. It may cause a complete loss of commercial chrysanthemum crops. Results from experiments conducted in 2008 and 2009 under production situations show significantly fewer symptoms of white rust puccinia horiana henn. In situ hybridization for the detection of rust fungi in. Highly specific primer pairs were identified for conventional, nested, and realtime pcr detection of p. In countries where it is known to occur, cwr is a serious disease in nurseries. Chrysanthemum white rust, caused by puccinia horiana henn. Files are available under licenses specified on their description page. Puccinia horiana pucchnoverview eppo global database. To our knowledge this is the first report of chrysanthemum white rust crw in india.
The disease index of puccinia horiana infection on chrysanthemums was only slightly lower when dithane m45 was applied. The disease was completely suppressed in the combinations with plantvax, saprol, calirus, bayleton 5 wp. A report on plant diseases of the state 1905 14781564782. Download as pptx, pdf, txt or read online from scribd.
Cultivation of chrysanthemum chrysanthemum x morifolium originates more than 2000 years ago in asia. Pdf evidence for systemic infection by puccinia horiana. Other important rust hosts in nurseries include acacia, blueberry. Historically, identification protocols for white rust relied upon macroscopic symptom development and microscopic examination of infected leaves for teliospores. The disease also poses a risk of increasing management costs if introduced into the commonwealth as control. Jun 06, 2019 california pest rating proposal for chrysanthemum white rust puccinia horiana hennings 1901 pest rating. Chrysanthemum is currently one of the most important ornamental crops in. Phylogenetic relationships of puccinia horiana and other rust pathogens of chrysanthemum. Aug 01, 2004 puccinia horiana puccinia horiana 20040801 00. Phylogenetic analyses using distance, maximum likelihood and bayesian methods confirmed p. Most rusts have a very restricted host range, affecting one or a few species.
Plants of four varieties were sprayed 8 times weekly. Text is available under the creative commons attributionsharealike license. Notes on nomenclature, disease, plant hosts and geographic distribution puccinia gladioli. Puccinia triticina wheat leaf rust, also known as brown rust puccinia punctiformis canada thistle rust 3 the rust species puccinia obtegens has shown some promise for controlling canada thistle, but it. Note that at 14 dai, whitish areas have developed where pustules will later develop.
It was then found on one property in pennsylvania and later in october in 14 areas. Puccinia is a genus of fungi that cause a serious plant disease commonly called rust. Jun 30, 2014 chrysanthemum white rust, caused by puccinia horiana henn. Jan 01, 2018 cultivation of chrysanthemum chrysanthemum x morifolium originates more than 2000 years ago in asia. Puccinia mccleanii on gladiolus known only from type rhacodiella vitis on. Symptoms of puccinia horiana at the start of infection. Chrysanthemum white rust puccinia horiana chrysanthemum white rust cwr is a usda quarantined plant pathogen that poses a potential trade barrier to growers. General information about puccinia horiana pucchn name language. It was then found on one property in pennsylvania and later in october in 14 areas in new jersey adjacent to the original find. Evaluating the threat posed by fungi on the aphis list of. Puccinia horiana hennings, the causal agent of chrysanthemum white rust, is a worldwide quarantine organism and one of the most important fungal pathogens of chrysanthemum. The establishment of a cooperation program between the colombian institute of agriculture, ica, and the colombian association of flower exporters, asocolflores, has helped in the design and application.
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