Alginate Oligosaccharide (AOS) induced resistance to Pst DC3000 via salicylic acid-mediated signaling pathway in Arabidopsis thaliana

2019 ◽  
Vol 225 ◽  
pp. 115221 ◽  
Author(s):  
Chunguang Zhang ◽  
Prianka Howlader ◽  
Tongmei Liu ◽  
Xue Sun ◽  
Xiaochen Jia ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Salicylic Acid ◽  
Signaling Pathway ◽  
Induced Resistance ◽  
Alginate Oligosaccharide

scholarly journals Salicylic Acid-Induced Resistance to Cucumber mosaic virus in Squash and Arabidopsis thaliana: Contrasting Mechanisms of Induction and Antiviral Action

2005 ◽  
Vol 18 (5) ◽  
pp. 428-434 ◽  
Author(s):  
Carl N. Mayers ◽  
Kian-Chung Lee ◽  
Catherine A. Moore ◽  
Sek-Man Wong ◽  
John P. Carr
Keyword(s):  
Arabidopsis Thaliana ◽  
Salicylic Acid ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Induced Resistance ◽  
Host Species ◽  
Cell Movement ◽  
Signal Transduction Pathway ◽  
Model Systems ◽  
Antimycin A

Salicylic acid (SA)-induced resistance to Cucumber mosaic virus (CMV) in tobacco (Nicotiana tabacum) results from inhibition of systemic virus movement and is induced via a signal transduction pathway that also can be triggered by antimycin A, an inducer of the mitochondrial enzyme alternative oxidase (AOX). In Arabidopsis thaliana, inhibition of CMV systemic movement also is induced by SA and antimycin A. These results indicate that the mechanisms underlying induced resistance to CMV in tobacco and A. thaliana are very similar. In contrast to the situation in tobacco and A. thaliana, in squash (Cucurbita pepo), SA-induced resistance to CMV results from inhibited virus accumulation in directly inoculated tissue, most likely through inhibition of cell-to-cell movement. Furthermore, neither of the AOX inducers antimycin A or KCN induced resistance to CMV in squash. Additionally, AOX inhibitors that compromise SAinduced resistance to CMV in tobacco did not inhibit SAinduced resistance to the virus in squash. The results show that different host species may use significantly different approaches to resist infection by the same virus. These findings also imply that caution is required when attempting to apply findings on plant-virus interactions from model systems to a wider range of host species.

scholarly journals Sulfur-Induced Resistance against Pseudomonas syringae pv. actinidiae via Triggering Salicylic Acid Signaling Pathway in Kiwifruit

2021 ◽  
Vol 22 (23) ◽  
pp. 12710
Author(s):  
Zhuzhu Zhang ◽  
Youhua Long ◽  
Xianhui Yin ◽  
Sen Yang
Keyword(s):  
Salicylic Acid ◽  
Signaling Pathway ◽  
Induced Resistance ◽  
Pseudomonas Syringae ◽  
Plant Disease Resistance ◽  
Plant Pathogens ◽  
Systemic Acquired Resistance ◽  
Lignin Content ◽  
Acquired Resistance ◽  
Salicylic Acid Signaling

Sulfur has been previously reported to modulate plant growth and exhibit significant anti-microbial activities. However, the mechanism underlying its diverse effects on plant pathogens has not been elucidated completely. The present study conducted the two-year field experiment of sulfur application to control kiwifruit canker from 2017 to 2018. For the first time, our study uncovered activation of plant disease resistance by salicylic acid after sulfur application in kiwifruit. The results indicated that when the sulfur concentration was 1.5–2.0 kg m−3, the induced effect of kiwifruit canker reached more than 70%. Meanwhile, a salicylic acid high lever was accompanied by the decline of jasmonic acid. Further analysis revealed the high expression of the defense gene, especially AcPR-1, which is a marker of the salicylic acid signaling pathway. Additionally, AcICS1, another critical gene of salicylic acid synthesis, was also highly expressed. All contributed to the synthesis of increasing salicylic acid content in kiwifruit leaves. Moreover, the first key lignin biosynthetic AcPAL gene was marked up-regulated. Thereafter, accumulation of lignin content in the kiwifruit stem and the higher deposition of lignin were visible in histochemical analysis. Moreover, the activity of the endochitinase activity of kiwifruit leaves increased significantly. We suggest that the sulfur-induced resistance against Pseudomonas syringae pv. actinidiae via salicylic activates systemic acquired resistance to enhance plant immune response in kiwifruit.

Role of melatonin in UV‐B signaling pathway and UV‐B stress resistance in Arabidopsis thaliana

2020 ◽  
Vol 44 (1) ◽  
pp. 114-129
Author(s):  
Jing‐Wen Yao ◽  
Zheng Ma ◽  
Yan‐Qin Ma ◽  
Ying Zhu ◽  
Meng‐Qi Lei ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Signaling Pathway ◽  
Stress Resistance

scholarly journals dl-β-Aminobutyric Acid–Induced Resistance of Potato Against Phytophthora infestans Requires Salicylic Acid but Not Oxylipins

2010 ◽  
Vol 23 (5) ◽  
pp. 585-592 ◽  
Author(s):  
Lennart Eschen-Lippold ◽  
Simone Altmann ◽  
Sabine Rosahl
Keyword(s):  
Salicylic Acid ◽  
Phytophthora Infestans ◽  
Induced Resistance ◽  
Crop Plants ◽  
Aminobutyric Acid ◽  
Systemic Resistance ◽  
Lipoxygenase Pathway ◽  
Promising Alternative ◽  
Functional Analyses ◽  
Late Blight Pathogen

Inducing systemic resistance responses in crop plants is a promising alternative way of disease management. To understand the underlying signaling events leading to induced resistance, functional analyses of plants defective in defined signaling pathway steps are required. We used potato, one of the economically most-important crop plants worldwide, to examine systemic resistance against the devastating late blight pathogen Phytophthora infestans, induced by treatment with dl-β-aminobutyric acid (BABA). Transgenic plants impaired in either the 9-lipoxygenase pathway, which produces defense-related compounds, or the 13-lipoxygenase pathway, which generates jasmonic acid–derived signals, expressed wild-type levels of BABA-induced resistance. Plants incapable of accumulating salicylic acid (SA), on the other hand, failed to mount this type of induced resistance. Consistently, treatment of these plants with the SA analog 2,6-dichloroisonicotinic acid restored BABA-induced resistance. Together, these results demonstrate the indispensability of a functional SA pathway for systemic resistance in potato induced by BABA.

scholarly journals Arabidopsis thaliana cdd1 mutant uncouples the constitutive activation of salicylic acid signalling from growth defects

2011 ◽  
Vol 12 (9) ◽  
pp. 855-865 ◽  
Author(s):  
SWADHIN SWAIN ◽  
SHWETA ROY ◽  
JYOTI SHAH ◽  
SASKIA VAN WEES ◽  
CORNÉ M. PIETERSE ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Salicylic Acid ◽  
Constitutive Activation ◽  
Growth Defects
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