Phytophthora infestans Infection

Hamlen, R. Biology of cymoxanil action against Phytophthora infestans infection of tomato and potato. Proc. Brighton Crop Protection Conf. - Pests Dis. (1996) 933-936. 

Next, we observed that the activity of this isoPO was higher in calluses than in intact plants. Moreover, the significant activation of this isoform (pl 8.5) was shown in potato calluses infected by Phytophthora infestans (Fig. 1). 

We observed the activation of chitin-specific PO during infection with the causative agents of a number of diseases in wheat under the influence of Btpolaris soroktntana and the elicitors (Fig. 4), Septoria nodorum (Yusupova et al, 2006) and Tilletia caries (Khairullin et al., 2000) in potato infected by Phytophthora infestans (Maksimov et al., 2011), and in Aegilops umbellulata infected by Septoria nodorum (Maksimov et al, 2006). 

Lapwood, D.H. (1977). Factors affecting the field infection of potato tubers of potato tubers of different cultivars by blight (Phytophthora infestans), Annals of Applied Biology, 85, 23 -2. 

Peng, J.H. Black, L.L. (1976) Increased Proteinase Inhibitor Activity in Response to Infection of Resistant Tomato Plants by Phytophthora infestans. Phytopathology 66, 958-963. 

Rishitin (40) is an antifiigal norsesquiterpene, qualified as phytoalexin and this was isolated from tuber tissues of white potatoes infected by an incompatible race of Phytophthora infestans. It was isolated21 by... 

Katsui et al.,76 isolated two phytoalexins sesquiterpenes lubimin (144) and oxylubimin (145) from white potato tubers (Rishri) infected by an incompatible race of Phytophthora infestans. It has already been mentioned that from white potato tubers also have been isolated sesquiterpene rishitin (40). In the year 1971 Metliskii and coworkers77 isolated lubimin (144) along with rishitin (40) from white potato tubers (S.tuberlosum Lubimets ) stressed with various pathogens. 

Metabolite Production in Potato Tubers Infected by Phytophthora Infestans, Fusarlum avenaceum and Phoma exlgua". Physiol. Plant Pathol., 9, 189-197. (b) D. T. 

The Involvement of Membrane-Degrading Enzymes During Infection of Potato Leaves by Phytophthora infestans... 

During the infection of potato leaves by Phytophthora infestans there is a rapid degradation of membrane components (chlorophyll, galactolipids, and phospholipids). We have identified an inducible phospholipase B activity which is secreted by the fungus in culture and also occurs during the infection of potato leaves. 

The latter are formed as stress metabolites after infection by fungi or bacteria such as Erwinia carotovora and Phytophthora infestans together with other compounds such as phytuberin. Compounds (3), (4), (5), and (6) in the given order are precursors in the biosynthesis of the phytoalexin rishitin. The V. are formed biosynthetically from eudesmane type sesquiterpenes. Lit. J. Am. Chem. Soc. 120, 1747 (1998) (synthesis) Tetrahedron Lett. 37, 8703 (1996). 

Fluazinam is extensively used in potatoes for the control of late blight Phytophthora infestans). It is especially effective against tuber blight as the potent activity against zoospores prevents them moving through the soil to infect the tubers... 

Tomiyama K, Stahmann M A 1964 Alteration of oxidative enzymes in potato tuber tissue by infection with Phytophthora infestans. Plant Physiol 39 483-490... 

Parasitic fungi such as Phytophthora infestans induce formation of new compounds, the so-called phytoalexins defined as low-molecular-weight antimicrobial compounds that are both synthesized by and accumulated in plants after their exposure to microorganisms (71). Potato tubers produce about 25 of these stress metabolites, such as rishitinol. Can any of these terpene metabolites be developed into practical protectants against sprouting and infection ... 

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