The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection

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dc.contributor.advisorCoyne, Vernonen_ZA
dc.contributor.authorJaffray, Ann Elizabethen_ZA
dc.date.accessioned2014-11-11T12:56:16Z
dc.date.available2014-11-11T12:56:16Z
dc.date.issued1998en_ZA
dc.descriptionBibliography: leaves 190-209.en_ZA
dc.description.abstractThe red agar-containing macroalga G. gracilis (Stackhouse) Steentoft, Irvine et, Farnham has occurred in Saldanha Bay, South Africa for many years. However, in recent years a number of collapses in this G. gracilis population were recorded, in some instances almost erradicating the entire population. One of the causes of these collapses is thought to be bacterial disease about which there is very little known. The bacterial pathogens of this macroalga were thus investigated to determine the nature of disease occurrence and how G. gracilis responds to such infections. A large number of culturable bacterial epiphytes isolated from G. gracilis from Saldanha Bay, South Africa, and Luderitz, Namibia were characterised and compared. The number of culturable bacteria isolated from the seawater surrounding the macroalgae was significantly lower than that which occurred epiphytically on the macro algal thalli. Most of the bacteria isolated were Gram-negative, motile rods, and many were classified to genus level. Scanning electron microscopy confirmed that a large epiphytic population of coccoid and rod-shaped bacteria occurs primarily on the main thalli of the rnacroalga and that significantly fewer (and often none) reside on the thallus growth tips.en_ZA
dc.identifier.apacitationJaffray, A. E. (1998). <i>The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Molecular and Cell Biology. Retrieved from http://hdl.handle.net/11427/9557en_ZA
dc.identifier.chicagocitationJaffray, Ann Elizabeth. <i>"The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Molecular and Cell Biology, 1998. http://hdl.handle.net/11427/9557en_ZA
dc.identifier.citationJaffray, A. 1998. The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Jaffray, Ann Elizabeth AB - The red agar-containing macroalga G. gracilis (Stackhouse) Steentoft, Irvine et, Farnham has occurred in Saldanha Bay, South Africa for many years. However, in recent years a number of collapses in this G. gracilis population were recorded, in some instances almost erradicating the entire population. One of the causes of these collapses is thought to be bacterial disease about which there is very little known. The bacterial pathogens of this macroalga were thus investigated to determine the nature of disease occurrence and how G. gracilis responds to such infections. A large number of culturable bacterial epiphytes isolated from G. gracilis from Saldanha Bay, South Africa, and Luderitz, Namibia were characterised and compared. The number of culturable bacteria isolated from the seawater surrounding the macroalgae was significantly lower than that which occurred epiphytically on the macro algal thalli. Most of the bacteria isolated were Gram-negative, motile rods, and many were classified to genus level. Scanning electron microscopy confirmed that a large epiphytic population of coccoid and rod-shaped bacteria occurs primarily on the main thalli of the rnacroalga and that significantly fewer (and often none) reside on the thallus growth tips. DA - 1998 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1998 T1 - The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection TI - The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection UR - http://hdl.handle.net/11427/9557 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9557
dc.identifier.vancouvercitationJaffray AE. The investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infection. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Molecular and Cell Biology, 1998 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9557en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Molecular and Cell Biologyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMicrobiologyen_ZA
dc.titleThe investigation of bacterial pathogens of the red macroalga gracilaria gracilis and its response to bacterial infectionen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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