Academic literature on the topic 'Viroids Reproduction'

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Journal articles on the topic "Viroids Reproduction"

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Eriso, Feleke. "Viroids and energy intake by human Genome." British Journal of Multidisciplinary and Advanced Studies 3, no. 2 (December 8, 2022): 14–46. http://dx.doi.org/10.37745/bjmas.2022.0054.

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Viroids are infectious pathogens that affect only plants. Viroids are subviral, being smaller than viruses and possess circular strands of ribonucleic acids (RNAs) with no protein coating. Hunger is a painful sensation for energy caused by depletion of dietary energy. We get this energy, either directly after we eat or from the stored food as glycogen or from that stored as fat. The key objectives of this study are: 
 ►to demonstrate the fact that the nature’s spectacular Controlled Experiment of Naked Genome is the only automatic molecular machine that synthesizes all genomic-things &amp
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Мацкевич, О. В. "MICROCLONAL REPRODUCTION OF HAZELNUTS." Bulletin of Uman National University of Horticulture 1 (August 2022): 106–15. http://dx.doi.org/10.31395/2310-0478-2022-1-106-115.

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For the rapid introduction of large quantities of high-quality hazelnut planting material, it is important to use various modifications of microclonal propagation: classic on gel media, bioreactors with periodic flooding (TiS) and photoautotrophic methods. At the first stage of classical methods there are three main problems: phenol formation; endogenous contamination; selection of trophic and hormonal determinants of in vitro ontogenesis. In cases of infection of mother plants with viruses, viroids, it is mandatory to use meristem explants with a size of not more than 0.3 mm, followed by diag
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Matsushita, Yosuke, Hironobu Yanagisawa, and Teruo Sano. "Vertical and Horizontal Transmission of Pospiviroids." Viruses 10, no. 12 (December 12, 2018): 706. http://dx.doi.org/10.3390/v10120706.

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Viroids are highly structured, single-stranded, non-protein-coding circular RNA pathogens. Some viroids are vertically transmitted through both viroid-infected ovule and pollen. For example, potato spindle tuber viroid, a species that belongs to Pospiviroidae family, is delivered to the embryo through the ovule or pollen during the development of reproductive tissues before embryogenesis. In addition, some of Pospiviroidae are also horizontally transmitted by pollen. Tomato planta macho viroid in pollen infects to the ovary from pollen tube during pollen tube elongation and eventually causes s
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Matsushita, Yosuke, and Shinya Tsuda. "Distribution of Potato spindle tuber viroid in Reproductive Organs of Petunia During Its Developmental Stages." Phytopathology® 104, no. 9 (September 2014): 964–69. http://dx.doi.org/10.1094/phyto-10-13-0294-r.

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Embryo infection is important for efficient seed transmission of viroids. To identify the major pattern of seed transmission of viroids, we used in situ hybridization to histochemically analyze the distribution of Potato spindle tuber viroid (PSTVd) in each developmental stage of petunia (flowering to mature seed stages). In floral organs, PSTVd was present in the reproductive tissues of infected female × infected male and infected female × healthy male but not of healthy female × infected male before embryogenesis. After pollination, PSTVd was detected in the developed embryo and endosperm in
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Egorov, E. A., Zh А. Shadrina, and G. А. Kochyan. "Biologisation of production and technological processes in nursery farming." Horticulture and viticulture, no. 5 (November 15, 2021): 19–25. http://dx.doi.org/10.31676/0235-2591-2021-5-19-25.

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We conducted a retrospective analysis of national scientific and technological advances by technological design to manifest the demand for organisation processes remodelling towards the methods and approaches of the sixth design, especially in biotechnology. The article defines terms such as nursery, biologisation, promising technology and resource conservation. We analyse the fruit crop seedling production and structure of nursery-specific processes. We determine the main agrocenotic components most susceptible to chemical and technogenic impacts. Studies of soil fertility and biota prioritis
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Grasmick, M. E., and S. A. Slack. "Effect of potato spindle tuber viroid on sexual reproduction and viroid transmission in true potato seed." Canadian Journal of Botany 64, no. 2 (February 1, 1986): 336–40. http://dx.doi.org/10.1139/b86-048.

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The effect of potato spindle tuber viroid infection on pollen viability, fruit-set, botanical seed set, seed weight, and seed germination in potatoes was determined. Pollen collected from the infected cultivar 'Monona' was less viable than pollen collected from healthy plants. Pollen collected from infected plants reduced seed set significantly but did not reduce fruit development or seed set in all cultivars tested. For some cultivars, infected maternal plants increased the frequency of fruit development and seed weight compared with healthy controls. True potato seed from viroid-infected 'Ka
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Negrey, Jacob D., Melissa Emery Thompson, Kevin E. Langergraber, Zarin P. Machanda, John C. Mitani, Martin N. Muller, Emily Otali, Leah A. Owens, Richard W. Wrangham, and Tony L. Goldberg. "Demography, life-history trade-offs, and the gastrointestinal virome of wild chimpanzees." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1811 (September 21, 2020): 20190613. http://dx.doi.org/10.1098/rstb.2019.0613.

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In humans, senescence increases susceptibility to viral infection. However, comparative data on viral infection in free-living non-human primates—even in our closest living relatives, chimpanzees and bonobos ( Pan troglodytes and P. paniscus )—are relatively scarce, thereby constraining an evolutionary understanding of age-related patterns of viral infection. We investigated a population of wild eastern chimpanzees ( P. t. schweinfurthii ), using metagenomics to characterize viromes (full viral communities) in the faeces of 42 sexually mature chimpanzees (22 males, 20 females) from the Kanyawa
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Ito, T., and K. Yoshida. "REPRODUCTION OF APPLE FRUIT CRINKLE DISEASE SYMPTOMS BY APPLE FRUIT CRINKLE VIROID." Acta Horticulturae, no. 472 (November 1998): 587–94. http://dx.doi.org/10.17660/actahortic.1998.472.78.

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Matoušek, J., L. Orctová, J. Patzak, P. Svoboda, and LudvíkováI. "Molecular sampling of hop stunt viroid (HSVd) from grapevines in hop production areas in the Czech Republic and hop protection." Plant, Soil and Environment 49, No. 4 (December 10, 2011): 168–75. http://dx.doi.org/10.17221/4109-pse.

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Molecular sampling of HSVd in grapevines in the environs of hop gardens was performed. Specific RT PCR primers were designed to unambiguously distinguish between HLVd and HSVd infections. These primers were used for detection and analysis of HSVd cDNAs from individual samples by thermodynamic methods, TGGE and cDNA heteroduplex analysis. We found that at least 70% of grapevine samples from locations close to hop gardens inNorthern Bohemia(Žatec and Úštěk hop production areas) were infected with HSVd forming populations containing quasispecies. Particular sequence variants
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Nikolaeva, V. N., G. T. Dolanbayeva, T. S. Khosnutdinova, X. O. Bogdanova, and S. V. Zharkova. "Monitoring of viral and fungal diseases of potatoes in East Kazakhstan." IOP Conference Series: Earth and Environmental Science 1010, no. 1 (April 1, 2022): 012141. http://dx.doi.org/10.1088/1755-1315/1010/1/012141.

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Abstract The presented article discusses ways to solve a very important problem concerning both agricultural producers and the population of any country - the cultivation and production of a sufficient number of potato tubers. Modern varieties of potatoes cultivated in the fields of the Republic of Kazakhstan are capable of yielding marketable tubers of more than 100 c/ha, but they realize their biological potential under production conditions by 15-30% [12]. A long process of vegetative reproduction of a culture contributes to the progressive accumulation of viral, viroid, fungal, and bacteri
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Dissertations / Theses on the topic "Viroids Reproduction"

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Forster, Anthony Carlyle. "Self-cleavage of plant pathogenic RNAs." Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09PH/09phf7331.pdf.

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Sheldon, Candice Claire. "Hammerhead mediated self-cleavage of plant pathogenic RNAs /." Title page, contents and summary only, 1992. http://web4.library.adelaide.edu.au/theses/09PH/09phs544.pdf.

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Ståhl, Karl. "Bovine viral diarrhoea virus and other reproductive pathogens : epidemiological studies in Peruvian cattle /." Uppsala : Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200653.pdf.

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Lagarde, Franck. "Écologie de la reproduction de l'huître Crassostrea gigas en lagune méditerranéenne." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS470.

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Les lagunes méditerranéennes hébergent de nombreux usages anthropiques dont la conchyliculture depuis le début du 20ème siècle. Importée en 1970, l’huître creuse, Crassostrea gigas, s’y est adaptée parfaitement et a permis un développement ostréicole important jusqu’en 2008, année d’apparition des surmortalités de naissain liées à l’émergence d’un variant du virus OsHv1. La raréfaction du naissain et la spéculation sur ce produit ont modifié régionalement les pratiques culturales et les modes d’approvisionnement en juvéniles, avec notamment la volonté de développer une activité locale de capta
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Hassan, Taha Tariq. "Pathogens affecting the reproductive system of camels in the United Arab Emirates : with emphasis on Brucella abortus, Bovine Viral Diarrhoea Virus and Bovine Herpes Virus-1: a serological survey in the Al-Ain region /." Uppsala : Dept. of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/10512462.pdf.

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Warrilow, David 1968. "Studies on the replication complex of citrus exocortis viroid." 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phw295.pdf.

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Includes bibliographical references. The aim of this work is the further characterisation of the citrus exocortis viroid (CEV) replication complex in a tomato host system. The study employed three approaches. i. To raise polyclonal antiserum against a putative catalytic component of the CEV replication complex, the second largest subunit of tomato RNA polymerase II--ii. To develop a cell-free system for CEV RNA synthesis--iii. To use the polyclonal antiserum to the second largest subunit of RNA polymerase II, and a commercially available monoclonal antibody to the largest subunit, for antibody
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Warrilow, David 1968. "Studies on the replication complex of citrus exocortis viroid / David Warrilow." Thesis, 1996. http://hdl.handle.net/2440/18871.

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Includes bibliographical references.<br>vi, 86, [56] leaves, [10] leaves of plates : ill. ; 30 cm.<br>The aim of this work is the further characterisation of the citrus exocortis viroid (CEV) replication complex in a tomato host system. The study employed three approaches. i. To raise polyclonal antiserum against a putative catalytic component of the CEV replication complex, the second largest subunit of tomato RNA polymerase II--ii. To develop a cell-free system for CEV RNA synthesis--iii. To use the polyclonal antiserum to the second largest subunit of RNA polymerase II, and a commercially a
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Forster, Anthony Carlyle. "Self-cleavage of plant pathogenic RNAs / by Anthony Carlyle Forster." Thesis, 1987. http://hdl.handle.net/2440/18536.

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Book chapters on the topic "Viroids Reproduction"

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"Academic Press Rapid Manuscript Reproduction." In Subviral Pathogens of Plants and Animals: Viroids and Prions, ii. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-12-470230-1.50001-3.

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