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Showing 1 to 12 of 12 for “"Disease and pest resistance"”.
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Inheritance and expression of Cry3Aa and PVY-O coat protein transgenes in diploid and tetraploid potato
… benefits of plant genetic engineering for disease and pest resistance have been widely acknowledged in many studies, and although genetically modified crops are still encountering public wariness, these benefits warrant continued exploration. Because of its intrinsic economic benefits, the …
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The Relationship Between Resistance to the Fungal Toxin Cercosporin and Grey Leaf Spot Disease Resistance in Corn (ZEA MAYS L.)
… fungus "Cerospora zeae-maydis" which causes the disease Grey Leaf Spot. The fungus produces a toxin, cercosporin, whose role in the pathogenicity of the disease is not known. The first step in determining the importance of the toxin to the fungus is to screen corn inbreds to see if any disease …
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Development and testing of a greenhouse assay for screening potato germplasm for susceptibility to Spongospora subterranea f. sp. subterranea (powdery scab)
Potato resistance to powdery scab, caused by the protist Spongospora subterranea f. sp. subterranea (S.s.s.), has become extremely important in recent years due to the increased damage caused by this disease. Variable field conditions and the environmental sensitivity of the S.s.s. infection …
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Virus induced gene silencing of <em>Fusarium verticillioides</em> pathogenicity genes in maize
1 PDF file (x, 99 pages)
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Host-pathogen interactions in a segregating population of BC2F2 hybrid Castanea dentata and other chesnut hybirds after exposure to hypovirus-containing and hypvirus-free strains of Cryphonectria parasitica
… interspecific hybrid chestnut trees (BC2F2) and the progeny of the Chattanooga Chestnut Tree Project (CCTP) breeding program were exposed to three isogenic strains of Cryphonectria parasitica. Strain Ep155 (virus-free) was used to screen the 4- 7 year old chestnut trees for resistance to …
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Temporal composition of tannin and carbohydrate content in Eucalyptus leaves in South Africa
… plays an important role as a plantation tree and hence forms a major economic component in the forest sector. An insect pest of these Eucalyptus species, Gonipterus scutellatus, causes periodic defoliation in the plantations. Plants have extraordinary array of chemicals (secondary …
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The effect of pathogens on plant genome stability
Resistance (R) genes, a key factor in determining the resistance of plants, have been shown often to be highly allelic entities existing in duplicated regions of the genome. This characteristic suggests that R-gene acquisition may have arisen through frequent genetic rearrangements as a result of …
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Effector-triggered immunity against Pseudomonas syringae pv. actinidiae in nonhost plants : thesis submitted to the Massey University for the degree of Doctor of Philosophy
… 𝘴𝘺𝘳𝘪𝘯𝘨𝘢𝘦 pv. 𝘢𝘤𝘵𝘪𝘯𝘪𝘥𝘪𝘢𝘦 (Psa) is a virulent and highly damaging pathogen causing bacterial canker in all currently commercially important cultivars of kiwifruit (𝘈𝘤𝘵𝘪𝘯𝘪𝘥𝘪𝘢 spp.). Arabidopsis and 𝘕𝘪𝘤𝘰𝘵𝘪𝘢𝘯𝘢 spp. plants, however, are nonhosts to 𝘗𝘴𝘢. In our course of investigating the various …
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Profiling of gene expression in bread wheat (Triticum aestivum L.) line PI 137739 in response to Russian wheat aphid (Diuraphis noxia Mordvilco) feeding
… level. PI 137739 is known to contain the RWA resistance gene, Dn1. The study was conducted by utilising and combining a vast array of molecular biological techniques. Chapter 1 introduces the reader to a summary of the resistance responses observed within infested plants. A detailed …