Last edited by Kajidal
Thursday, May 7, 2020 | History

1 edition of Potato spindle-tuber found in the catalog.

Potato spindle-tuber

by Donald Folsom

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Published by Maine Agricultural Experiment Station in Orono .
Written in English

    Subjects:
  • Potatoes,
  • Diseases and pests

  • Edition Notes

    Includes bibliographical references.

    Other titlesPotato spindle tuber.
    Statement[Donald Folsom]
    SeriesBulletin / Maine Agricultural Experiment Station -- 312
    The Physical Object
    Paginationp. 22-44, [4] leaves of plates :
    Number of Pages44
    ID Numbers
    Open LibraryOL25619113M
    OCLC/WorldCa20143447

      Introduction. Potato spindle tuber viroid (PSTVd) is an A2 pest for EPPO. Details of its biology, distribution and economic importance can be found in EPPO/CABI () and the Plant Quarantine data Retrieval system on the EPPO website.. In potato, PSTVd is spread primarily through the use of infected planting material, produced vegetatively or as botanical seed (Fernow et al., ; . Acad ASBV base pairs Biochem cadang-cadang CCCV cDNA cells central conserved region chrysanthemum chrysanthemum stunt circular viroid citrus citrus exocortis viroid cloned cucumber denaturation detected Diener dimeric disease Domdey double-stranded enzyme extracts Francki gel electrophoresis Gross hairpin Haseloff healthy Henco hop stunt viroid.

    Jari P.T. Valkonen, in Potato Biology and Biotechnology, Potato spindle tuber viroid. The viroid PSTVd was the first potato pathogen for which the whole genomic sequence was cloned and determined (Gross et al., ; Dickson et al., ).The genome of PSTVd consists of a rod-shaped, circular ssRNA molecule of – nucleotides that contains characteristic secondary. This work presents information on viroids and viroid diseases. It provides a single source of information on the properties of viroids, the economic impact of viroid diseases and methods for their detection and control. It also examines the diseases associated with different plant s: 1.

    Plant pathology, 5 Ed by George N Agrios is a very interesting book, I ever seen detailed on the plant pathology. 11 November () REHAN. The potato spindle tuber disease was first observed early in the 20th century in the northeastern United States and shown, in , to be incited by a viroid, potato spindle tuber viroid (PSTVd).


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Potato spindle-tuber by Donald Folsom Download PDF EPUB FB2

Also, it was during efforts to purify a putative virus from potato spindle tuber-affected plants that the aberrant properties of the causative agent were recognized, the first viroid isolated, and the viroid concept developed.

Thus, the potato spindle tuber disease truly represents the prototype of all viroid by: Introduction; Origin, History, and Importance of the Potato; Development and Anatomy of the Potato Plant; Tuber Periderm and Disease Resistance; Tuber Respiration and Oxygen-Temperature Relationships; Potato Disease Management Strategies; Part I.

Disease in the Presence of Infectious Pathogens; Diseases Caused by Bacteria; Bacterial Ring Rot; Blackleg, Aerial Stem Rot, and Tuber Soft Rot 4/4(1). Potato spindle tuber viroid (PSTVd) is the type strain of the largest viroid family Pospiviroidae.

PSTVd is a circular, single-stranded RNA PSTVd is a circular, single-stranded RNA molecule with a sequence length of about nt and a rod-like native structure that causes infectious diseases in Cited by: 6.

About this book. Compendium of Potato Diseases, Second Edition includes up-to-date information on diseases and disorders affecting potatoes its first publication 20 years ago, key pathogens and management practices have greatly expanded, and the international importance of many pathogens has changed.

Spindle tuber of potato disease is a pathogen whose main host is potatoes but which may also affect tomatoes and solanaceous ornamentals. No obvious symptoms are observed in potatoes with mild strains of the disease, but severe strains are another story.

Potato Diseases presents the practical experience and scientific research in production and the diseases of the seed potato. The book features chapters on bacterial and fungal diseases, diseases caused by viruses, viroids, and mycoplasmas and by nematodes and insects, noninfectious diseases, and seed potato Edition: 1.

Potato spindle tuber viroid is the type species of the genus Pospiviroid as well as the family Pospiviroidae. Spindle tuber, the first disease known to be caused by potato spindle tuber viroid (PSTVd), was reported nearly a century ago; since then natural infections involving 15 additional hosts that include tomato, pepper, various ornamentals crops, and two woody species have been by: 2.

The Potato spindle tuber viroid was the first viroid to be identified. PSTVd is a small, single stranded circular RNA molecule closely related to the chrysanthemum stunt viroid. Present within the viroidal RNA is the Pospiviroid RY motif stem loop. The natural hosts are potatoes and tomatoes.

All potatoes and tomatoes are susceptible to PSTVd and there is no form of natural resistance. Natural infections have Family: Pospiviroidae. infected with spindle tuber viroid, and tuber infected with unmottled curly dwarf. Note elongated shape and prominent eyebrows 55 Figure —Potato plant showing mild {A) and severe {B) witches' broom symptoms _ 56 Figure —-Potato plant showing typical yellow dwarf symptoms 57 Figure —Effect of ozone injury on potato leaves ^ Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion Librivox Free Audiobook Citizen Band 16 Gerente Digital por Alejandro Recio Common Core World Leaders ASMR True Crime RaW AM's posts Forced 2 Podcast Gold SoundzPages: Additional information on Prince Edward Island seed potato production is available from: PEI Potato Board PEI Dept of Agriculture & Land.

90 Hillstrom Avenue PO Box West Royalty Business Park Charlottetown PE. Charlottetown PE. C1E 2C6 C1A 7N8 Telephone: Telephone: Facsimile: File Size: KB. plants are: potato leaf roll, leaf curl of tomato and chillies, and mosaic disease of many plants. Viroids: They are naked, infectious strands of nucleic acid.

They cause diseases like potato spindle tuber, citrus exocortis, chrysanthemum stunt, cadang cadang of coconut palm, star crack of apple, etc. production of seed potatoes to 5 years in the soil.

Field Year 5 seed potatoes are not eligible for certification but can be sold as seed for table stock or processing use. This requires that Maine seed growers constantly update their source of seed in order to provide the most vigorous, disease free seed potatoes possible.

Maine Seed Potato Board. Theodor Otto Diener (born Febru ) is the Swiss-American plant pathologist who, indiscovered that the causative agent of the potato spindle tuber disease is not a virus, but a novel agent, which consists solely of a short strand of single-stranded RNA without a protein capsid, eighty times smaller than the smallest viruses.

He proposed to name it and similar agents to be. The viroid of the potato spindle tuber disease (PSTV) is a covalently closed ring of ribonucleotides. As a result of intramolecular base pairing, a serial arrangement of double-helical Cited by: III Potato Spindle Tuber Viroid: Genus Pospiviroid Viroids are the smallest known agents of infectious disease and consist of a unique nucleic acid molecule without a protein capsid.

Different strains of potato spindle tuber viroid (PSTVd) exist and symptoms range from mild to severe. ing for viruses, bacterial ring rot and potato spindle tuber viroid can be carried out provincially by the Agricultural Certification Services (ACS) Inc.

The ACS laboratory is operated by Potatoes New Brunswick and is accredited by the CFIA. Potato spindle tuber viroid (PSTVd) that provides guidance on preventing its introduction, surveillance for the pathogen and its containment and eradication if found infecting potato plants or tubers.

Specific approval and amendment First approved in Introduction Potato spindle tuber viroid (PSTVd) is an A2 pest for Size: 94KB. Grasmick ME, Slack SA () Effect of Potato spindle tuber viroid on sexual reproduction and viroid transmission in true potato seed.

Can J Bot – CrossRef Google Scholar Author: Wendy A. Monger, Colin Jeffries. All 10 plants tested positive for Potato spindle tuber viroid (PSTVd) by real-time reverse transcription (RT)-PCR (1) and by RT-PCR with PSTVd-specific primers (3) and generic pospiviroid primers (4).

For both conventional PCRs, the expected bp amplicons were sequenced directly and sequences were aligned together to create a consensus. Inherent within the latter is the use for international exchange of germplasm (Bajaj ). Although many potato diseases are not pollen transmitted, transmission of potato spindle tuber viroid (PSTV) by potato pollen (Singh ) may limit such exchanges unless assurances of Cited by: 3.Potato spindle tuber viroid is the type species of the genus Pospiviroid and the family Pospiviroidae (Owens et al., ).

Its single-stranded, circular RNA genome contains – nt and adopts a rod-like conformation with a central conserved region (CCR), formed by stretches of conserved nucleotides in the upper and lower strands, as well as a terminal conserved region.To examine the role of RNA silencing in plant defenses against viroids, a Dicer-like 2 and 4 (DCL2&4)–double knockdown transgenic tomato plant line, 72E, was created.

The expression of endogenous SlDCL2s and SlDCL4 in line 72E decreased to about a half that of the empty cassette line, EC. When challenged with potato spindle tuber viroid (PSTVd), line 72E showed significantly higher Author: Takahiro Suzuki, Sho Ikeda, Atsushi Kasai, Akito Taneda, Misato Fujibayashi, Kohei Sugawara, Maki Ok.