Phytophthora nicotianae

Coelho L, Mitchell DJ, Chellemi DO (2000) Thermal inactivation of Phytophthora nicotianae. Phytopathology 90 1089-1097... 

Cordier C., Gianianzzi S., Gianinazzi-Perason V. Colonization patterns of root tissues by Phytophthora nicotianae var. parasitica related to reduced disease in mycorrhizal tomato. Plant Soil 1996 185 223-232. Cordier C., Pozo M.J. Barea J.M., Gianinazzi S. Gianinazzi-Pearson V. Cell defense responses associated with localized and systemic resistance to Phytophthora parasitica induced in tomato by an arbuscular mycorrhizal fungus. Mol Plant-Microbe Interactions 1998 11 1017-1028. 

Peana and Moretti [68] reported that S. desoleana essential oil had in vitro a lethal effect on some phytopathogenic fungi (Botrytis cinerea, Fusarium solani, Phytophthora nicotianae var. parasitica, Rhizoctonia solani, Scle-rotinia sclerotiorum and Sclerotium rolfsii). The chromatographic fractions of the oil were less active compared with the essential oil in toto. The most marked inhibitory action was observed in the alcohol-containing fractions, and was not so evident as that obtained from the essential oil of S. sclarea. The activity of the essential oil in toto, also in this case, if ap-... 

Several studies investigated also the influence of AM fungal symbiosis on plant shoot metabolic activities. Some authors suggested that accumulation of secondary compounds in the shoots of mycorrhizal plants may represent the main factor conferring resistance to fungal pathogens [119—122]. For example, higher contents of phenolic compounds in mycorrhizal plants were correlated with a reduced severity of diseases caused by Phytophthora nicotianae and Botrytis fabae in tomato and Viciafaba, respectively [123, 124], and with a decrease of Ralstonia solanacearum population in tomato [125]. 

Cordier C, Gianinazzi S, Gianinazzi-Pearson V (1996) Colonisation patterns of root tissues by Phytophthora nicotianae var parasitica related to reduced disease in mycorrhizal tomato. Plant Soil 185 223-232... 

Staub, T.H., and Young, T.R. 1980. Fungitoxicity of metalaxyl against Phytophthora parasitica var. nicotianae. Phytopathology 70, 797-801. 

Tugaye The incompatible interaction between Phytophthora parasitica var. Nicotianae race 0 and tobacco is suppressed in transgenic plants express- 1863a. 

We have studied the wilt-inducing effect of macromolecular products of three species of Phytophthora chosen on the basis of their pathogenicity to the indicator plant Eucalyptus sieberi (50). These were the extremely pathogenic P. cinnamomiy the less pathogenic P. cryptogea and the non-pathogenic P. nicotianae. 

Tobacco is an important economic crop and a model plant for research. Many reports reveal that CTS can induce tobacco s resistance to tobacco mosaic virus (TMV), tobacco necrosis virus (TNV), and Phytophthora parasitica nicotianae. For example. Falcon studied the effect of different sizes and deacetylation degrees of chitosan derivatives on tobacco protection against P. parasitica (Falcon et al. 2008). The result of their experiment showed that different chitosans have distinct effects on this disease control though less acetylated chitosan are better for inhibition of P. parasitica... 

Falcon, A.B., Cabrer, J.C., Costales, D. et al. 2008. The effect of size and acetylation degree of chitosan derivatives on tobacco plant protection against Phytophthora parasitica nicotianae. World J. Microbiol. Biotech. 24(1) 103-112. 

Some alkaloids, such as quinine and other Cinchona alkaloids, have been used for centuries as drugs for killing protozoa while having little effect on the mammals ingesting such alkaloids. There have been attempts to extrapolate the poisonous effects of alkaloids to other microorganisms (protists), but it has been difficult to do. It was found that alkaloid-rich plants are affected by parasitic fungi and by pathogenic bacteria as much as alkaloid-free species. Phytophthora will attack, with the same deadly effects, alkaloid-rich Nicotiana species as readily as the less alkaloid-rich... 

This work presents evidence that changes In phospholipid metabolism occur in tobacco cells following treatment with elicitors of Phytophthora parasitica nicotianae, a fungal pathogen of tobacco. Over 24 hours, a net decrease of phospholipids was observed. At early stages, this effect was counterbalanced by an apparent increased synthesis of these compounds which... 

M. Rickauer, J. Fournier and M.T. Esquerre-Tugaye, Induction of proteinase inhibitors in tobacco cell suspension culture by elicitors of Phytophthora parasitica var. nicotianae. Plant Physiol., 90 (1989) 1065-1070. 

Villalba-Mateos, F Rickauer, M Esquerre -Tugaye, MT. Cloning and characterization of a cDNA encoding an elicitor of Phytophthora parasitica var. nicotianae that shows cellulose-binding and lectin-like activities. Mol Plant Microbe Interact, 1997, 10, 1045-53. 

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