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Teses / dissertações sobre o tema "Rhizoctonia solani"

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Publicado: 4 de junho de 2021
Última modificação: 25 de julho de 2025

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1

au, jiangwu@central murdoch edu, and Jiang Wu. "Transformation of Rhizoctonia solani." Murdoch University, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20050728.141653.

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The aim of this study was to develop a genetic transformation system for the plant pathogenic fungus Rhizoctonia solani (teliomorph, Thanatephprus cucumeris Frank [Donk]). The availability of a transformation system would allow us to study gene exchange, epidemiology, and to use techniques such as gene disruption or gene silencing to investigate the role of fungal enzymes in pathogenesis. The approach adopted was to use Agrobacterium tumefaciens to transform the fungus as reports in the literature suggested that this was the most efficient and easiest method to use. As a preliminary test, F
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2

Wu, Jiang. "Transformation of Rhizoctonia solani." Thesis, Wu, Jiang (2003) Transformation of Rhizoctonia solani. PhD thesis, Murdoch University, 2003. https://researchrepository.murdoch.edu.au/id/eprint/417/.

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The aim of this study was to develop a genetic transformation system for the plant pathogenic fungus Rhizoctonia solani (teliomorph, Thanatephprus cucumeris Frank [Donk]). The availability of a transformation system would allow us to study gene exchange, epidemiology, and to use techniques such as gene disruption or gene silencing to investigate the role of fungal enzymes in pathogenesis. The approach adopted was to use Agrobacterium tumefaciens to transform the fungus as reports in the literature suggested that this was the most efficient and easiest method to use. As a preliminary test,
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Wu, Jiang. "Transformation of Rhizoctonia solani." Wu, Jiang (2003) Transformation of Rhizoctonia solani. PhD thesis, Murdoch University, 2003. http://researchrepository.murdoch.edu.au/417/.

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The aim of this study was to develop a genetic transformation system for the plant pathogenic fungus Rhizoctonia solani (teliomorph, Thanatephprus cucumeris Frank [Donk]). The availability of a transformation system would allow us to study gene exchange, epidemiology, and to use techniques such as gene disruption or gene silencing to investigate the role of fungal enzymes in pathogenesis. The approach adopted was to use Agrobacterium tumefaciens to transform the fungus as reports in the literature suggested that this was the most efficient and easiest method to use. As a preliminary test,
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4

Matthew, Jamie Scott. "Molecular diversity between anastomosis groups of Rhizoctonia solani : a thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in the Department of Animal Sciences at the University of Adelaide." Title page, table of contents and abstract only, 1992. http://web4.library.adelaide.edu.au/theses/09PH/09phm437.pdf.

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Journal article co-authored by the author inserted at end (Plant pathology (1991) 40, 67-77) Includes bibliographical references (leaves 124-167) Describes the isolation of antibody and DNA probes which vary in their reaction to different anastomosis groups of Rhizoctonia solani. Evidence is presented to show that isolates from anastomosis group 8 are biochemically distinct from isolates in other anastomosis groups found in South Australia.
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5

Simons, Sarah Anne. "Studies on the epidemiology of Rhizoctonia solani on Solanum tuberosum." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333383.

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6

Rutherford, Michael Andrew. "Biological control of Rhizoctonia solani on potatoes." Thesis, Queen's University Belfast, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336000.

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7

McCabe, Patricia Margaret. "Characterisation of extrachromosomal elements from Rhizoctonia solani." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/15314.

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The plant pathogenic basidiomycete, <I>Rhizoctonia solani</I>, contains extrachromosomal double-stranded RNA and DNA elements, but the role of these elements in the biology and pathology of the fungus is uncertain. Aspects of these elements in <I>R.solani</I> and the role of anastomosis (hyphal fusions) in their transmission are examined here. Anastomoses between hyphae, leading to successful cell fusions and death of fused cells (vegetative incompatibility) were observed by video microscopy and by fluorescence microscopy when hyphae were loaded with fluorochromes. However, attempts to monitor
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8

Noor, Afsana. "Understanding and Managing Rhizoctonia Solani in Sugarbeet." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/26917.

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Rhizoctonia crown and root rot of sugarbeet (Beta vulgaris L.) caused by Rhizoctonia solani K?hn is one of the most important production problems in Minnesota and North Dakota. Greenhouse studies were conducted to determine the efficacy of azoxystrobin to control R. solani at seed, cotyledonary, 2-leaf and 4-leaf stages of sugarbeet; compatibility, safety, and efficacy of mixing azoxystrobin with starter fertilizers to control R. solani; and the effect of placement of azoxystrobin in control of R. solani. Results demonstrated that azoxystrobin provided effective control applied in-furrow or ba
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9

Wiseman, Bronwyn Meg. "Characterisation of rhizoctonia barepatch decline." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phw8137.pdf.

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Bibliography: leaves 184-209. This thesis describes the occurence of natural, biologically based suppression of Rhizoctonia barepatch in a direct drilled system at Avon, South Australia. The supressive characteristics are transferable, removed by biocidal treatments, and active against increasing doses of R. solani AG-8, Gaeumannomyces graminis var. tritici and Fusarium graminearum. Disease severity and the viable population of Rhizoctonia are reduced in suppressive soil but the causal agent is still present. The microbial populations in suppressive and non-suppressive soil appear to differ bo
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10

Bora, Pranjal. "Production of laccase by the phytopathogenic fungus Rhizoctonia solani." Thesis, Bora, Pranjal (2003) Production of laccase by the phytopathogenic fungus Rhizoctonia solani. PhD thesis, Murdoch University, 2003. https://researchrepository.murdoch.edu.au/id/eprint/423/.

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This thesis is an investigation into the production of laccases by the phytopathogenic soil fungus Rhizoctonia solani. The fungus causes maceration of plant tissue by the production of a variety of plant cell wall degrading enzymes. Whilst most attention has focused on the role of pectinases in maceration, the laccases which degrade lignin are likely to be important in this process. The production of laccase by the AG-11 isolate VR20 in V8 medium reached a maximum after 6 days incubation. Laccase activity was unaffected by variation in temperatures over the range 4-15 degrees C, but as the
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Bora, Pranjal. "Production of laccase by the phytopathogenic fungus Rhizoctonia solani." Murdoch University, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20040706.135422.

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This thesis is an investigation into the production of laccases by the phytopathogenic soil fungus Rhizoctonia solani. The fungus causes maceration of plant tissue by the production of a variety of plant cell wall degrading enzymes. Whilst most attention has focused on the role of pectinases in maceration, the laccases which degrade lignin are likely to be important in this process. The production of laccase by the AG-11 isolate VR20 in V8 medium reached a maximum after 6 days incubation. Laccase activity was unaffected by variation in temperatures over the range 4-15°C, but as the temperatur
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12

Balali-Dehkordi, Gholam Reza. "Genetic variation of Rhizoctonia solani AG-3 in South Australia." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phb171.pdf.

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Three pages of addenda pasted inside back cover. Bibliography: leaves 166-189. Rhizoctonia solani is a complex species comprising morphologically basidiomycetous imperfect fungi. This study aimed to determine genetic diversity within R. solani AG-3 causing rhizoctonia disease of potato in South Australia. For this purpose, pectic zymogram, PCR, DNA fingerprinting and RFLP techniques were used in conjunction with traditional plant pathology procedures.
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13

Brown, Matthew. "Elucidating crop losses and control of Rhizoctonia solani and Rhizoctonia cerealis in winter wheat." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33622/.

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Rhizoctonia solani is a species complex comprising 13 anastomosis groups (AG) that cause disease in a broad range of crops. Various AGs of R. solani are pathogenic to winter wheat causing damping-off and root rots. Rhizoctonia cerealis, the fungal agent of sharp eyespot, is known to commonly occur on the stems of wheat as part of stem base disease complex (SBD) consisting also of eyespot and brown foot rot (BFR). Eyespot is caused by Oculimacula acuformis or O. yallundae and BFR is principally caused by Microdochium nivale or M. majus. The population dynamics of SBD pathogens are continually c
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Bueno, César Júnior [UNESP]. "Efeito da solarização do solo sobre a população de Pseudomonas spp. fluorescente antagonista a Rhizoctonia solani Kuhn GA 4 HGI." Universidade Estadual Paulista (UNESP), 2001. http://hdl.handle.net/11449/97214.

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Made available in DSpace on 2014-06-11T19:28:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-01Bitstream added on 2014-06-13T19:58:13Z : No. of bitstreams: 1 bueno_cj_me_botfca.pdf: 1013904 bytes, checksum: 043d789384b345a558786fd5831a2833 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O trabalho foi realizado nas instalações do Departamento de Produção Vegetal/Defesa Fitossanitária da Faculdade de Ciências Agronômicas-UNESP (22º51’S e 48º26’W)- Botucatu/SP e consistiu da instalação de dois experimentos idênticos em épocas distintas com duas etapas cada.
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Bueno, César Júnior. "Efeito da solarização do solo sobre a população de Pseudomonas spp. fluorescente antagonista a Rhizoctonia solani Kuhn GA 4 HGI /." Botucatu : [s.n.], 2001. http://hdl.handle.net/11449/97214.

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Orientador: Nilton Luiz de Souza<br>Resumo: O trabalho foi realizado nas instalações do Departamento de Produção Vegetal/Defesa Fitossanitária da Faculdade de Ciências Agronômicas-UNESP (22º51'S e 48º26'W)- Botucatu/SP e consistiu da instalação de dois experimentos idênticos em épocas distintas com duas etapas cada. A primeira destas objetivou verificar o efeito da solarização sobre a comunidade nativa de Pseudomonas spp. fluorescentes no campo e em túnel plástico. Nesta fase, monitorou-se a população das bactérias aos 0, 7, 14, 21, 28 e 35 dias durante a solarização. Na segunda etapa, verific
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Mayer, Silvia. "Untersuchungen zu Rhizoctonia solani - dem Erreger der dry-core-Krankheit der Kartoffel." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11195184.

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Wareing, Peter William. "Studies on Rhizoctonia solani causing bottom rot of lettuce." Thesis, University of Hull, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327855.

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18

Robinson, Helen Lynne. "Characterization of double-stranded RNA (dsRNA) from Rhizoctonia solani." Thesis, University of Edinburgh, 1999. http://webex.lib.ed.ac.uk/abstracts/robins01.pdf.

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19

Zamani, Mohammad Reza. "The pectic enzymes of Rhizoctonia solani AG-8 strains." Thesis, Zamani, Mohammad Reza (1995) The pectic enzymes of Rhizoctonia solani AG-8 strains. PhD thesis, Murdoch University, 1995. https://researchrepository.murdoch.edu.au/id/eprint/51917/.

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Isolates of Rhizoctonia solcmi anastomosis group 8 (AG-8) cause bare patch disease in cereal and legume crops. Infection of root tissue by the fungus leads to maceration of the roots and inhibits development of the aerial parts of the plant. There is evidence to suggest that pectic enzymes may be an important factor in the pathogenicity of R. solani. The aim of this study is to investigate the role of pectolytic enzymes produced by R. solani (AG-8) isolates in pathogenicity. Pectic enzyme production by highly virulent (HV) and weakly virulent (WV) isolates from wheat bare patches was analy
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20

Budge, Giles Elliott. "Detection and characterisation of Rhizoctonia solani affecting UK Brassica crops." Thesis, University of Reading, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486318.

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Rhizoctonia so/ani is the causative agent of wirestem on Brassica crops. R. so/ani is a species complex comprising genetically. distinct groups known as anastomosis groups (AGs). Knowledge of which AGs are responsible for disease is necessary to formulate appropriate management strategies. Important knowledge about the specific AGs responsible for disease in UK Brassica crops and where in the production chain the fungus became associated with plants was lacking. A survey of UK .f3rassica o/eracea crops was completed to. establish which anastomosis groups of Rhizoctonia so/ani were associated w
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21

Creaser, M. L. "Spatio-temporal dynamics of saprophytic populations of Rhizoctonia solani Kühn." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598143.

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<I>Rhizoctonia solani </I>is a vigorous soilborne, fungal plant pathogen that is responsible for substantial losses to many agriculturally important crops. The pathogen's destructive nature and wide host range has promoted considerable research into its taxonomy, pathology, and ecology, in an effort to develop effective methods of disease control. The population dynamics of <I>R. solani </I>have received considerable attention in regard to plant infection and disease development. However, few studies have focused on the saprophytic population dynamics of this organism that has been described a
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22

Robertson, Shelly Ray. "ULTRASTRUCTURE OF ANASTOMOSIS IN RHIZOCTONIA SOLANI (AUTORADIOGRAPHY, TRANSLOCATION, HYPHAL-FUSION)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/291254.

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23

Kabir, Nasreen Zahan. "Selection of effective antagonists against Rhizoctonia solani (AG-3), the causal agent of Rhizoctonia disease of potato." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29726.pdf.

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Kabir, Nasreen Zahan. "Selection of effective antagonists against Rhizoctonia solani (AG-3), the causal agent of Rhizoctonia disease of potato." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27351.

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Rhizoctonia solani (AG-3), the causal agent of Rhizoctonia disease of potato, overwinters as sclerotia on potato tubers. To develop a biocontrol strategy based on the prevention of the sclerotial germination, an isolation of microorganisms colonizing sclerotia of infected potato tubers (cultivars Norland, Atlantic and Souris), was conducted. In vitro screening was used to select effective antagonistic fungi against Rhizoctonia solani. Fifty fungal isolates were selected in order to cover all identified genera and potato variety and examined for their ability to inhibit germination of sclerotia
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Kyritsis, Polyvios. "Epidemiology and pathogenesis of mycelial soil borne Rhizoctonia solani AG 3 on potatoes (Solanum tuberosum)." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288350.

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This thesis describes aspect of the epidemiology and pathogenicity of the soil-borne phase of <i>Rhizoctonia solani </i>AG-3 (Kuhn) fungus on potatoes and its competitive saprophytic colonisation ability in the soil. Under controlled environmental conditions, stem canker incidence and severity increased with increasing levels of soil-borne inoculum but plateaued after ¼ inoculum level (i.e 1 Petri dish of <i>R. solani  </i>AG-3 per kg soil).  Up to the 1/20 inoculum stem canker occurred at a low level.  A significant increase occurred at 1/10 and 1/8 inoculum levels.  A similar pattern was obs
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Ridout, C. J. "Biological control of Rhizoctonia solani on lettuce with species of Trichoderma." Thesis, University of Hull, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376233.

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Woodhall, James Warwick. "Characterisation of Rhizoctonia solani anastomosis groups and their pathogenicity to potato." Thesis, Open University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417459.

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Fenille, Roseli Chela [UNESP]. "Caracterização citomorfológica, cultural, molecular e patogênica de Rhizoctonia solani Kühn associado a soja no Brasil." Universidade Estadual Paulista (UNESP), 2001. http://hdl.handle.net/11449/105440.

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Made available in DSpace on 2014-06-11T19:35:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-02Bitstream added on 2014-06-13T19:44:46Z : No. of bitstreams: 1 fenille_rc_dr_botfca.pdf: 795582 bytes, checksum: 759ea8f4173e60afb2c35123120e9e29 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Rhizoctonia solani representa um patógeno de importância econômica mundial nas áreas de cultivo da soja. Pode estar associado a vários sintomas como tombamento, podridão de raízes e hipocótilos e mela ou requeima da soja. No Brasil, os níveis de danos pela mela em soja var
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Fenille, Roseli Chela. "Caracterização citomorfológica, cultural, molecular e patogênica de Rhizoctonia solani Kühn associado a soja no Brasil /." Botucatu : [s.n.], 2001. http://hdl.handle.net/11449/105440.

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Orientador: Nilton Luiz de Souza<br>Resumo: Rhizoctonia solani representa um patógeno de importância econômica mundial nas áreas de cultivo da soja. Pode estar associado a vários sintomas como tombamento, podridão de raízes e hipocótilos e mela ou requeima da soja. No Brasil, os níveis de danos pela mela em soja variam de 31 a 60%, em lavouras dos Estados do Norte e Nordeste. R. solani está dividido em 14 grupos de anastomose (AG), que diferem quanto aos aspectos culturais, virulência e fisiologia. Desta forma, objetivou-se caracterizar AG de R. solani associados à soja no Brasil. Dentre 73 is
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Tullio, Hamilton Edemundo. "POTENCIAL DE BACTÉRIAS ENDOFÍTICAS DO CACAU PARA O CONTROLE DE FUNGOS DE SOLO E PROMOÇÃO DE CRESCIMENTO RADICULAR NA CULTURA DA SOJA." Universidade Estadual de Ponta Grossa, 2017. http://tede2.uepg.br/jspui/handle/prefix/2398.

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Brewer, Marin Talbot. "Effects of Biological Control and a Ryegrass Rotation on Rhizoctonia Disease of Potato." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/BrewerMT2003.pdf.

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Ben, Cássio Alberto Vielmo. "Avaliação de cultivares de soja [Glycine max (L.) MERRILL] quanto à tolerância à Rhizoctonia solani." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/5140.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The objective of this study was to evaluate the genetic resistance of cultivars for the possible damage caused by Rhizoctonia solani in controlled humidity conditions. For this, the work was divided into parts, which began from the get the pathogen identified in the AG-4 anastomosis group, mainly responsible for causing rot the root system and soybean seedling damping-off. Then the spread was performed in laboratory, cultured in petri dishes, and after standing in a culture medium using corn flour, sand and distilled water, which w
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Ceresini, Paulo cezar. "Population biology and genetics of Rhizoctonia solani anastomosis group 3 (AG-3)." NCSU, 2000. http://www.lib.ncsu.edu/theses/available/etd-20001122-164118.

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<p> Anastomosis group 3 (AG-3) of Rhizoctonia solani is frequently associated with diseases of potato and tobacco. Although isolates from the two hosts are taxonomically related, previous studies have shown differences in their biology, fatty acid composition, pathogenicity and ribosomal DNA. However, the genetic diversity of populations of R. solani AG-3 from potato and tobacco are not known. In this study, the genetic diversity of field populations of R. solani AG-3 from potato and tobacco in North Carolina were examined using somatic compatibility and amplified fragment length polymorphisms
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Cooke, Julie A. "Nutritional requirement of wheat in relation to tolerance to Rhizoctonia solani Kühn /." Title page, contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09APSP/09apspc772.pdf.

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Back, Matthew Alan. "The interaction between potato cyst nematodes and Rhizoctonia solani diseases in potatoes." Thesis, Open University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396385.

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The soil-borne pathogen Rhizoctonia solani and the potato cyst nematode Globodera rostochiensis are detrimental to the growth and productivity of potato crops in the UK. Previous work has shown that plant parasitic nematodes and fungal pathogens can occasionally interact synergistically to form destructive disease complexes. Furthermore, there is some evidence to suggest that an interaction might exist between G. rostochiensis and R. solani on potato. In order to investigate interactions between G. rostochiensis and R. solani, a series of glasshouse and field experiments were undertaken (2000-
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Gonçalves, Larissa Aparecida. "Produção e caracterização de amilase secretada por Rhizoctonia solani AG-1 IA /." Ilha Solteira, 2019. http://hdl.handle.net/11449/181158.

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Orientador: Paulo Cezar Ceresini<br>Resumo: Rhizoctonia solani AG-1 IA é um patógeno habitante do solo que causa doenças em pastagens e plantas cultivadas, em vários estados brasileiros. Para penetrar e colonizar os tecidos do hospedeiro, o microrganismo utiliza enzimas que podem ser de interesse biotecnológico e industrial. O objetivo do presente trabalho foi produzir e caracterizar a α-amilase secretada por R. solani AG-1 IA utilizando produtos e resíduos agroindustriais como substratos para fermentação. Para todos os ensaios foi adotado o processo de cultivo em estado sólio (CES) à temperat
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Alexandre, Samara Marrye Aguiar [UNESP]. "Polissacarídeos da biomassa do basidiomiceto Rhizoctonia solani: extração, purificação e atividade biológica." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/127823.

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Made available in DSpace on 2015-09-17T15:25:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-27. Added 1 bitstream(s) on 2015-09-17T15:46:29Z : No. of bitstreams: 1 000845926_20170101.pdf: 227536 bytes, checksum: 2a191bf5d74671d97251e88e7f0145ba (MD5) Bitstreams deleted on 2017-01-02T15:03:51Z: 000845926_20170101.pdf,. Added 1 bitstream(s) on 2017-01-02T15:05:08Z : No. of bitstreams: 1 000845926.pdf: 1072676 bytes, checksum: cad2ff92580278b3dac67dc96e267389 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O fungo Rhizoctonia solani, é um fitopatóg
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Drizou, Fryni. "Elucidating the interaction between Brassica napus and Rhizoctonia solani AG 2-1." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49317/.

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Brassica napus, oilseed rape (OSR), is a worldwide cultivated crop belonging to the family Brassicaceae, broadly used in crop rotations with cereals. Production is focused on oil for human consumption, biodiesel and feedstock. OSR has undergone intensive breeding for optimization of oil content, disease resistance and augmentation of yields, and today is considered one of the most profitable crops. Nonetheless, oilseed rape is the primary host for the necrotrophic soil-borne pathogen Rhizoctonia solani anastomosis group (AG) 2-1. Infection of seedlings causes damping off disease and decreases
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39

Alexandre, Samara Marrye Aguiar. "Polissacarídeos da biomassa do basidiomiceto Rhizoctonia solani : extração, purificação e atividade biológica /." São José do Rio Preto, 2015. http://hdl.handle.net/11449/127823.

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Orientador: Maria de Lourdes Corradi Custodio da Silva<br>Banca: Beatriz Eleutério Goi<br>Banca: Cesar Augusto Tischer<br>Resumo: O fungo Rhizoctonia solani, é um fitopatógeno que ataca diversas culturas, provocando o tombamento de plântulas. Há vários estudos visando o combate deste micro-organismo, no entanto, não há relatos da composição química de sua biomassa. De acordo com a literatura a biomassa fúngica pode ser uma fonte promissora de moléculas para aplicação em ensaios biológicos. A partir disso, um estudo inédito da composição química da biomassa do R. solani, principalmente em relaç
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40

Morissette, Danielle. "Characterization of the Stachybotrys elegans' genes regulated during its interaction with Rhizoctonia solani." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102815.

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Stachybotrys elegans is a mycoparasite of the soilborne plant pathogen fungus Rhizoctonia solani. The mycoparasitic activity of S. elegans is correlated with the production of cell wall-degrading enzymes such as chitinases. This study details the cloning and characterization of the cDNA, sechi44, that encodes an extracellular endochitinase. The expression regulation of sechi44 was altered when S. elegans was in interaction with its host, R. solani, and also when the mycoparasite was grown on minimal media amended with different carbon and nitrogen sources. Direct contact with R. solani signifi
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41

Porto, Maria Alice Formiga. "Associação de Fusarium solani, Macrophomina phaseolina e Rhizoctonia solani causando podridão radicular em meloeiro sob efeito de adubos verdes." Universidade Federal Rural do Semi-Árido, 2015. http://bdtd.ufersa.edu.br:80/tede/handle/tede/105.

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Made available in DSpace on 2016-08-12T19:15:34Z (GMT). No. of bitstreams: 1 MariaAFP_DISSERT.pdf: 1443517 bytes, checksum: e637327b3212fa22033a29f0e0c82333 (MD5) Previous issue date: 2015-02-27<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The occurrence of root diseases is one of the main reasons of yield loss in melon crop, especially the pathogens that causes root and collar rot, as the fungi Fusarium solani (Mart.) Sacc., Macrophomina phaseolina (Tassi) Gold. and Rhizoctonia solani Kuhn, being observed in muskmelon either alone or associated. The use of crop residu
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42

Pereira, Jackeline Leite. "Análise da interação entre Phaseolus vulgaris, Trichoderma harzianum ALL 42 e os fungos fitopatogênicos Fusarium solani e Rhizoctonia solani." reponame:Repositório Institucional da UnB, 2012. http://repositorio.unb.br/handle/10482/16489.

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Tese (doutorado)—Universidade de Brasília, Departamento de Biologia Molecular, Programa de Pós-graduação em Biologia Celular e Molecular, 2012.<br>Submitted by Ana Cristina Barbosa da Silva (annabds@hotmail.com) on 2014-10-14T12:22:10Z No. of bitstreams: 1 2012_JackelineLeitePereira.pdf: 3652289 bytes, checksum: 11e3d00bc97f96db1c6ae48254de4373 (MD5)<br>Approved for entry into archive by Guimaraes Jacqueline(jacqueline.guimaraes@bce.unb.br) on 2014-10-15T14:19:10Z (GMT) No. of bitstreams: 1 2012_JackelineLeitePereira.pdf: 3652289 bytes, checksum: 11e3d00bc97f96db1c6ae48254de4373 (MD5)<br>Ma
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43

Arts, Monique R. "Gene expression of the mycoparasite Stachybotrys elegans during interaction with a fungal host and a hon-host." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101835.

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The mycoparasite Stachybotrys elegans represents a potential biocontrol agent of Rhizoctonia solani, the causal organism of potato stem canker. The differential expression of two mycoparasitism-induced genes was monitored in S. elegans during interactions with its host, Rhizoctonia solani, and a non-host, Sclerotinia sclerotiorum. Using real-time reverse-transcription polymerase chain reaction (QRT-PCR), comparative analyses demonstrated that hyphal and sclerotial forms triggered different patterns of gene expression in the mycoparasite, as did the presence of the host or non-host. The calmodu
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44

Guillemaut, Cécile. "Identification et étude de l'écologie de Rhizoctonia solani, responsable de la maladie de pourriture brune de la betterave sucrière." Lyon 1, 2003. http://www.theses.fr/2003LYO10203.

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Rhizoctonia solani est un champignon tellurique responsable de dégâts importants en culture betteravière. L'identification de 311 isolats avec une méthode de type PCR-RFLP, complétée par des tests de pathogénicité a montré que les souches appartenant au groupe d'anastomose 2 subdivision 2 (AG-2-2) étaient responsables des symptômes de pourriture brune en France. La comparaison du potentiel infectieux et de la réceptivité de sols prélevés dans des zones où les betteraves sont saines/malades dans un même champ a montré que R. Solani était présent en faibles densités dans les sols naturels. Sa mu
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45

Streeter, Tania C. "Role of Zn nutritional status on infection of Medicago species by Rhizoctonia solani /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09APSP/09apsps915.pdf.

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46

Ritchie, Faye. "Aspects of the biology, epidemiology and control of Rhizoctonia Solani (Kühn) on potato." Thesis, University of Glasgow, 2006. http://theses.gla.ac.uk/3528/.

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Aspects of the biology, epidemiology and control of Rhizoctonia solani from potato were investigated using a range of laboratory and field-based experiments. In vitro experiments revealed nutritional factors including a range of carbon sources, and inorganic and organic nitrogen did not affect significantly mycelial growth or sclerotial germination. Carbon and nitrogen sources including cellobiose, glucose, glycerol and potassium nitrate significantly increased sclerotial biomass production in vitro. Mycelial growth, sclerotial production and germination occurred over a temperature range of 10
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47

Nanayakkara, Chandrika Malkanthi Hewawasam. "Bacterial biocontrol and soil solarization strategies for suppression of Rhizoctonia solani on rice." Thesis, University of Aberdeen, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424985.

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Use of known antagonists and antagonistic, endophytic bacteria was investigated to screen a successful antagonist for the fungal strains <i>R. solani</i> AG 2-1, <i>R. solani</i> AG 4 and <i>R. solani</i> AGSL01.   Reputed antagonists used in the study; <i>Bacillus subtilis </i>MBI 205,  <i>B. subtilis</i> MBI 600, <i>Pseudomonas fluorescens</i> B5 and <i>P. corrugate</i> R. 117 were capable of suppressing the fungus in dual cultures. Manipulation of soil factors to reduce pre-plant density of <i>R. solani</i> sclerotia involved a laboratory experiment followed by two field experiments.  In th
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48

Rethwisch, Michael D., Mark Reay, Thomas A. Turini, and Ron Swan. "Interaction of Cotton Varieties and Rhizoctonia solani: Effects on Resultant Plant Populations, 2005." College of Agriculture, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/198195.

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Eight varieties were evaluated under field conditions for resultant plant populations after field infection with Rhizoctonia solani. Highest plant populations were noted in Delta and PineLand 454BR, followed by three other Delta and PineLand (DPL) varieties. Stoneville and Phytogen cotton varieties had reduced plant stands compared to DPL varieties at approximately 30 days after planting. DPL 454BR, which had the highest plant population, also had earlier growth and establishment than other varieties which is thought to have helped plant survival. Although all seed was treated with multiple fu
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49

Genzel, Franziska. "The molecular basis of the plant-pathogen interaction of potato and Rhizoctonia solani." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19404.

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Die Kartoffel, eines der wichtigsten Nahrungsmittel weltweit, wird unter anderem von dem Erreger Rhizoctonia solani Kühn befallen. Durch dieses Pathogen hervorgerufene Qualitäts- und Ertragsverminderungen können zu erheblichen ökonomischen Verlusten führen. Da derzeitig verfügbare Bekämpfungsmaßnahmen nur eine eingeschränkte Effektivität aufzeigen, sind alternative Bekämpfungsstrategien dringend notwendig. Der Einsatz resistenter Sorten stellt eine effektive, umweltfreundliche Alternative dar, jedoch ist derzeit nur wenig über die der Resistenz der Kartoffel gegenüber R. solani zugrundeliegen
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50

Barros, Betijane Soares de. "Avaliação da atividade antinociceptiva da fração metanólica obtida a partir da biomassa do fungo endofítico da espécie Rhizoctonia solani." Universidade Federal de Alagoas, 2012. http://repositorio.ufal.br/handle/riufal/933.

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The Rhizoctonia is a genus belonging to the Fungi Kingdom, whose representatives live in the soil and act as endophytes of various plants. Among the plants possessing this fungus, deserves the red-pepper tree (Schinus terebinthifolius Raddi), which is popularly used for different purposes, including inflammation. This work describes the antinociceptive and antiinflammatory activity of methanolic fraction obtained from the biomass of the endophytic fungus from Rhizoctonia solani. The methanolic fraction, when administered by intraperitoneal route, was able to reduce the nociception induced by a
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