Systemic acquired resistance to Phytophthora infestans in tomato and the role of pathogenesis related proteins

1993 ◽  
Vol 43 (3) ◽  
pp. 161-171 ◽  
Author(s):  
J. Enkerli ◽  
U. Gisi ◽  
E. Mösinger
Keyword(s):  
Phytophthora Infestans ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Pathogenesis Related Proteins ◽  
Pathogenesis Related ◽  
Related Proteins

The role of NF2 gene mutations and pathogenesis-related proteins in sporadic vestibular schwannomas in young individuals

2014 ◽  
Vol 392 (1-2) ◽  
pp. 145-152 ◽  
Author(s):  
Hongsai Chen ◽  
Xiaoman Zhang ◽  
Zhihua Zhang ◽  
Tao Yang ◽  
Zhaoyan Wang ◽  
...  
Keyword(s):  
Gene Mutations ◽  
Vestibular Schwannomas ◽  
Pathogenesis Related Proteins ◽  
Nf2 Gene ◽  
Pathogenesis Related ◽  
Related Proteins

scholarly journals Induce the plant resistance to pathogen infection

2014 ◽  
Vol 20 (1-2) ◽  
Author(s):  
A. Ezzat ◽  
Z. Szabó ◽  
J. Nyéki
Keyword(s):  
Gene Expression ◽  
Salicylic Acid ◽  
Systemic Acquired Resistance ◽  
Induced Defense ◽  
Acquired Resistance ◽  
Vital Role ◽  
Signal Molecule ◽  
Pathogenesis Related ◽  
Related Proteins ◽  
Direct Toxicity

Systemic acquired resistance (SAR) is a mechanism of induced defense that confers long-lasting protection against a broad spectrum of microorganisms. Salicylic acid (SA) is the signal molecule which is required for induce SAR and is associated with accumulation of pathogenesis-related proteins, which are thought to contribute to resistance. SA paly vital role in some related resistance gene expression in plant cell which have direct or indirect effect on pathogen growth as SA has direct toxicity for pathogen and in the same time has stimulation effect for some enzyme related to reduce the oxidative burst.

Freezing tolerance in Norway spruce, the potential role of pathogenesis-related proteins

2014 ◽  
Vol 37 (1) ◽  
Author(s):  
Lars Sandved Dalen ◽  
Øystein Johnsen ◽  
Anders Lönneborg ◽  
Mahmoud W. Yaish
Keyword(s):  
Norway Spruce ◽  
Freezing Tolerance ◽  
Potential Role ◽  
Pathogenesis Related Proteins ◽  
Pathogenesis Related ◽  
Related Proteins

Mechanizmy obronne roślin drzewiastych uruchamiane w odpowiedzi na atak patogenów

2018 ◽  
Vol XI ◽  
pp. 21-30
Author(s):  
Emilia Wilmowicz ◽  
Agata Kućko ◽  
Jan Kopcewicz
Keyword(s):  
Induced Resistance ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Natural Resistance ◽  
Tree Protection ◽  
Pathogenesis Related ◽  
Different Types ◽  
Protection Strategies ◽  
Related Proteins ◽  
Comprehensive Study

This paper presents a comprehensive study on the mechanisms of tree responses to pathogens. We describe natural resistance concerning the presence of different types of barriers protecting plants from invasion and also give them strength after a pathogen attack. We put emphasis on induced resistance functioning both locally and systemically and involvement of phytohormones signaling networks. Systemic acquired resistance (SAR) involved the action of salicylic acid and H202 and accumulation of pathogenesis-related proteins. In turn, jasmonates and ethylene are signaling molecules in the induced resistance (SIR). All these substances play a crucial role in the forest management and can be applied in the tree protection strategies based on the natural and synthetic active compounds.

scholarly journals Involvement of Salicylate and Jasmonate Signaling Pathways in Arabidopsis Interaction with Fusarium graminearum

2010 ◽  
Vol 23 (7) ◽  
pp. 861-870 ◽  
Author(s):  
Ragiba Makandar ◽  
Vamsi Nalam ◽  
Ratnesh Chaturvedi ◽  
Richard Jeannotte ◽  
Alexis A. Sparks ◽  
...  
Keyword(s):  
Fusarium Graminearum ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Head Blight ◽  
Pathogenesis Related ◽  
Ja Signaling ◽  
Arabidopsis Defense ◽  
Sa Signaling ◽  
Dependent Mechanism

Fusarium graminearum is the principal causative agent of Fusarium head blight (FHB), a devastating disease of wheat and barley. This fungus can also colonize Arabidopsis thaliana. Disease resistance was enhanced in transgenic wheat and Arabidopsis plants that constitutively overexpress the NONEXPRESSOR OF PATHOGENESIS-RELATED GENES 1 (NPR1) gene, which regulates salicylic acid (SA) signaling and modulates the activation of jasmonic acid (JA)-dependent defenses. Here, we provide several lines of evidence that reveal an important role for SA and JA signaling in Arabidopsis defense against F. graminearum. SA level was elevated in fungus-inoculated leaves, and SA application and biologically activated systemic acquired resistance enhanced resistance. Furthermore, the disruption of SA accumulation and signaling in the sid2 mutant and NahG transgenic plant, and the npr1 and wrky18 mutants, respectively, resulted in heightened susceptibility to this fungus in leaves and inflorescence. JA signaling was activated in parallel with SA signaling in the fungus-challenged plants. However, the hyperresistance of the JA pathway mutants opr3, coi1, and jar1 indicates that this pathway contributes to susceptibility. Genetic and biochemical experiments indicate that the JA pathway promotes disease by attenuating the activation of SA signaling in fungus-inoculated plants. However, the hypersusceptibility of the jar1 npr1 double mutant compared with the npr1 mutant suggests that JAR1 also contributes to defense, signifying a dichotomous role of JA and a JAR1-dependent mechanism in this interaction.

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