Chrysoporthe austroafricana is a fungal pathogen that causes the development of stem cankers on susceptible Eucalyptus grandis trees. Clones of E. grandis that are partially resistant and highly susceptible have been identified based on the extent of lesion formation on the stem upon inoculation with C. austroafricana. These interactions have been used as a model pathosystem to enhance our unde...

The control of TT8 expression was investigated in this study, and it was demonstrated that it constitutes a major regulatory step in the specific activation of the expression of flavonoid structural genes. First, the GUS activity generated in planta from a TT8::uidA construct revealed cell-specific activation of the TT8 promoter consistent with the known involvement of the TT8 bHLH factor in pr...

In Arabidopsis thaliana, the calcium binding protein Salt Overly Sensitive3 (SOS3) interacts with and activates the protein kinase SOS2, which in turn activates the plasma membrane Na(+)/H(+) antiporter SOS1 to bring about sodium ion homeostasis and salt tolerance. Constitutively active alleles of SOS2 can be constructed in vitro by changing Thr(168) to Asp in the activation loop of the kinase ...

Fusarium graminearum is the major causal agent of Fusarium head blight (FHB) in barley and wheat in North America. The fungus not only causes yield loss of the crops but also produces harmful trichothecene mycotoxins [Deoxynivalenol (DON) and its derivatives-3-acetyldeoxynivalenol (3ADON) and 15-acetyldeoxynivalenol (15ADON), and nivalenol (NIV)] that contaminate grains. Previous studies showed...

Nélida Beatriz Brignole LIDeCC Laboratorio de Investigación y Desarrollo en Computación Cientı́fica (DCIC-UNS). Planta Piloto de Ingenierı́a Quı́mica (UNS-CONICET) Bahı́a Blanca, Argentina, Email: [email protected] Ana G. Maguitman Knowledge Management and Information Retrieval Research Group. LIDIA Laboratorio de Investigación y Desarrollo en Inteligencia Artificial. Departamento de Ciencias e Ing...

38997.htm; Accessed on 27/07/2005. 76) Puripattanavong J., Weber S., Brecht V., Frahm A. W., Planta Med., 66, 740—745 (2000). 77) Mulholland D. A., Randrianarivelojosia M., Lavaud C., Nuzillard J. M., Schwikkard S. L., Phytochemistry, 53, 115—118 (2000). 78) Hallur G., Sivaramakrishnan A., Bhat S. V., J. Nat. Prod., 65,