Probenazole induces systemic acquired resistance in tobacco through salicylic acid accumulation

2002 ◽  
Vol 61 (4) ◽  
pp. 197-203 ◽  
Author(s):  
Hideo Nakashita ◽  
Keiko Yoshioka ◽  
Michiko Yasuda ◽  
Takako Nitta ◽  
Yuko Arai ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Acid Accumulation ◽  
Salicylic Acid Accumulation

scholarly journals Thiadiazole carboxylic acid moiety of tiadinil, SV-03, induces systemic acquired resistance in tobacco without salicylic acid accumulation

2006 ◽  
Vol 31 (3) ◽  
pp. 329-334 ◽  
Author(s):  
Michiko Yasuda ◽  
Miyuki Kusajima ◽  
Masami Nakajima ◽  
Katsumi Akutsu ◽  
Toshiaki Kudo ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Carboxylic Acid ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Acid Moiety ◽  
Acid Accumulation ◽  
Salicylic Acid Accumulation

N-Cyanomethyl-2-chloroisonicotinamide Induces Systemic Acquired Resistance inArabidopsiswithout Salicylic Acid Accumulation

2003 ◽  
Vol 67 (2) ◽  
pp. 322-328 ◽  
Author(s):  
Michiko YASUDA ◽  
Hideo NAKASHITA ◽  
Satoru HASEGAWA ◽  
Masanori NISHIOKA ◽  
Yuko ARAI ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Acid Accumulation ◽  
Salicylic Acid Accumulation

scholarly journals The Mediator kinase module serves as a positive regulator of salicylic acid accumulation and systemic acquired resistance

2019 ◽  
Vol 98 (5) ◽  
pp. 842-852 ◽  
Author(s):  
Jianhua Huang ◽  
Yulin Sun ◽  
Alberto R. Orduna ◽  
Reinhard Jetter ◽  
Xin Li
Keyword(s):  
Salicylic Acid ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Positive Regulator ◽  
Acid Accumulation ◽  
Salicylic Acid Accumulation

scholarly journals Spatial and temporal regulation of biosynthesis of the plant immune signal salicylic acid

2015 ◽  
Vol 112 (30) ◽  
pp. 9166-9173 ◽  
Author(s):  
Xiao-yu Zheng ◽  
Mian Zhou ◽  
Heejin Yoo ◽  
Jose L. Pruneda-Paz ◽  
Natalie Weaver Spivey ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Signal Transduction Pathway ◽  
Temporal Regulation ◽  
Calmodulin Binding ◽  
Regulation Of Biosynthesis ◽  
Pathogen Entry ◽  
Transcription Activators ◽  
Transcriptional Induction

The plant hormone salicylic acid (SA) is essential for local defense and systemic acquired resistance (SAR). When plants, such as Arabidopsis, are challenged by different pathogens, an increase in SA biosynthesis generally occurs through transcriptional induction of the key synthetic enzyme isochorismate synthase 1 (ICS1). However, the regulatory mechanism for this induction is poorly understood. Using a yeast one-hybrid screen, we identified two transcription factors (TFs), NTM1-LIKE 9 (NTL9) and CCA1 HIKING EXPEDITION (CHE), as activators of ICS1 during specific immune responses. NTL9 is essential for inducing ICS1 and two other SA synthesis-related genes, PHYTOALEXIN-DEFICIENT 4 (PAD4) and ENHANCED DISEASE SUSCEPTIBILITY 1 (EDS1), in guard cells that form stomata. Stomata can quickly close upon challenge to block pathogen entry. This stomatal immunity requires ICS1 and the SA signaling pathway. In the ntl9 mutant, this response is defective and can be rescued by exogenous application of SA, indicating that NTL9-mediated SA synthesis is essential for stomatal immunity. CHE, the second identified TF, is a central circadian clock oscillator and is required not only for the daily oscillation in SA levels but also for the pathogen-induced SA synthesis in systemic tissues during SAR. CHE may also regulate ICS1 through the known transcription activators CALMODULIN BINDING PROTEIN 60g (CBP60g) and SYSTEMIC ACQUIRED RESISTANCE DEFICIENT 1 (SARD1) because induction of these TF genes is compromised in the che-2 mutant. Our study shows that SA biosynthesis is regulated by multiple TFs in a spatial and temporal manner and therefore fills a gap in the signal transduction pathway between pathogen recognition and SA production.

scholarly journals Systemic Acquired Resistance in Canola Is Linked with Pathogenesis-Related Gene Expression and Requires Salicylic Acid

2007 ◽  
Vol 97 (7) ◽  
pp. 794-802 ◽  
Author(s):  
Shobha D. Potlakayala ◽  
Darwin W. Reed ◽  
Patrick S. Covello ◽  
Pierre R. Fobert
Keyword(s):  
Salicylic Acid ◽  
Pseudomonas Syringae ◽  
Systemic Acquired Resistance ◽  
Induced Defense ◽  
Acquired Resistance ◽  
Microbial Pathogens ◽  
Broad Host Range ◽  
Avirulent Strain ◽  
Enhanced Resistance ◽  
Pathogenesis Related

Systemic acquired resistance (SAR) is an induced defense response that confers long-lasting protection against a broad range of microbial pathogens. Here we show that treatment of Brassica napus plants with the SAR-inducing chemical benzo-(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) significantly enhanced resistance against virulent strains of the bacterial pathogen Pseudomonas syringae pv. maculicola and the fungal pathogen Leptosphaeria maculans. Localized preinoculation of plants with an avirulent strain of P. syringae pv. maculicola also enhanced resistance to these pathogens but was not as effective as BTH treatment. Single applications of either SAR-inducing pretreatment were effective against P. syringae pv. maculicola, even when given more than 3 weeks prior to the secondary challenge. The pretreatments also led to the accumulation of pathogenesis-related (PR) genes, including BnPR-1 and BnPR-2, with higher levels of transcripts observed in the BTH-treatment material. B. napus plants expressing a bacterial salicylate hydroxylase transgene (NahG) that metabolizes salicylic acid to catechol were substantially compromised in SAR and accumulated reduced levels of PR gene transcripts when compared with untransformed controls. Thus, SAR in B. napus displays many of the hallmarks of classical SAR including long lasting and broad host range resistance, association with PR gene activation, and a requirement for salicylic acid.

scholarly journals Abscisic acid modulates salicylic acid biosynthesis for systemic acquired resistance in tomato

2017 ◽  
Vol 81 (9) ◽  
pp. 1850-1853 ◽  
Author(s):  
Miyuki Kusajima ◽  
Yasuko Okumura ◽  
Moeka Fujita ◽  
Hideo Nakashita
Keyword(s):  
Salicylic Acid ◽  
Abscisic Acid ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Acid Biosynthesis

scholarly journals Design, synthesis and fungicidal activity of isothiazole–thiazole derivatives

RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39593-39601 ◽  
Author(s):  
Qi-Fan Wu ◽  
Bin Zhao ◽  
Zhi-Jin Fan ◽  
Jia-Bao Zhao ◽  
Xiao-Feng Guo ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Systemic Acquired Resistance ◽  
Fungicidal Activity ◽  
Acquired Resistance ◽  
Thiazole Derivatives ◽  
Design Synthesis ◽  
Salicylic Acid Pathway ◽  
Acid Pathway

Compound 6u exhibits ultrahigh fungicidal activity by acting at its potent target PcORP1 and induces systemic acquired resistance by activating the salicylic acid pathway.

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