scholarly journals Evidence for a Role of Gibberellins in Salicylic Acid-Modulated Early Plant Responses to Abiotic Stress in Arabidopsis Seeds

2009 ◽  
Vol 150 (3) ◽  
pp. 1335-1344 ◽  
Author(s):  
Ana Alonso-Ramírez ◽  
Dolores Rodríguez ◽  
David Reyes ◽  
Jesús Angel Jiménez ◽  
Gregorio Nicolás ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Abiotic Stress ◽  
Plant Responses

scholarly journals Salicylic Acid Accumulation Controlled by LSD1 Is Essential in Triggering Cell Death in Response to Abiotic Stress

Cells ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 962
Author(s):  
Maciej Jerzy Bernacki ◽  
Anna Rusaczonek ◽  
Weronika Czarnocka ◽  
Stanisław Karpiński
Keyword(s):  
Cell Death ◽  
Salicylic Acid ◽  
Abiotic Stress ◽  
Wild Type ◽  
Pr Genes ◽  
Genes Expression ◽  
Salicylic Acid Accumulation ◽  
Cell Death Phenotype ◽  
Insight Into

Salicylic acid (SA) is well known hormonal molecule involved in cell death regulation. In response to a broad range of environmental factors (e.g., high light, UV, pathogens attack), plants accumulate SA, which participates in cell death induction and spread in some foliar cells. LESION SIMULATING DISEASE 1 (LSD1) is one of the best-known cell death regulators in Arabidopsis thaliana. The lsd1 mutant, lacking functional LSD1 protein, accumulates SA and is conditionally susceptible to many biotic and abiotic stresses. In order to get more insight into the role of LSD1-dependent regulation of SA accumulation during cell death, we crossed the lsd1 with the sid2 mutant, caring mutation in ISOCHORISMATE SYNTHASE 1(ICS1) gene and having deregulated SA synthesis, and with plants expressing the bacterial nahG gene and thus decomposing SA to catechol. In response to UV A+B irradiation, the lsd1 mutant exhibited clear cell death phenotype, which was reversed in lsd1/sid2 and lsd1/NahG plants. The expression of PR-genes and the H2O2 content in UV-treated lsd1 were significantly higher when compared with the wild type. In contrast, lsd1/sid2 and lsd1/NahG plants demonstrated comparability with the wild-type level of PR-genes expression and H2O2. Our results demonstrate that SA accumulation is crucial for triggering cell death in lsd1, while the reduction of excessive SA accumulation may lead to a greater tolerance toward abiotic stress.

On the Role of Salicylic Acid in Plant Responses to Environmental Stresses

2017 ◽  
pp. 17-34 ◽  
Author(s):  
José A. Hernández ◽  
Pedro Diaz-Vivancos ◽  
Gregorio Barba-Espín ◽  
María José Clemente-Moreno
Keyword(s):  
Salicylic Acid ◽  
Environmental Stresses ◽  
Plant Responses

scholarly journals Plant Survival in a Changing Environment: The Role of Nitric Oxide in Plant Responses to Abiotic Stress

2015 ◽  
Vol 6 ◽  
Author(s):  
Marcela Simontacchi ◽  
Andrea Galatro ◽  
Facundo Ramos-Artuso ◽  
Guillermo E. Santa-María
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Plant Responses ◽  
Changing Environment ◽  
Plant Survival

Minireview: Role of Salicylic Acid in Plant Abiotic Stress

2008 ◽  
Vol 63 (5-6) ◽  
pp. 313-320 ◽  
Author(s):  
Shu Yuan ◽  
Hong-Hui Lin
Keyword(s):  
Salicylic Acid ◽  
Abiotic Stress ◽  
Pathogenesis Related ◽  
Intracellular Signal ◽  
High Level ◽  
The Relationship ◽  
Very High ◽  
Plant Abiotic Stress ◽  
Plant Susceptibility

Salicylic acid (SA) plays many roles in plant physiology. Besides pathogenesis-related resistance, SA is involved in the response to abiotic stress. However, the effects of SA on plant resistance to abiotic stress were found contradictionary, and the actual role of SA in abiotic stress remains unresolved. Generally, deficiency of SA or a very high level of SA increase the plant susceptibility to abiotic stress. The optimal levels for the highest stress tolerance range from 0.1 mm to 0.5 mm for most plants. But the role of SA at a certain level in moderate and severe abiotic stress may be different. This can be attributed to redox regulations in plant cells. In this paper, we discuss the relationship between reactive oxygen species (ROS) and SA, and propose a subsequent intracellular signal transduction network of SA and ROS under abiotic stress. Anti-stress substances besides antioxidant enzymes induced by SA are also summarized.

Role of salicylic acid–induced abiotic stress tolerance and underlying mechanisms in plants

2022 ◽  
pp. 73-98
Author(s):  
Kanval Shaukat ◽  
Noreen Zahra ◽  
Mohammad Bilal Hafeez ◽  
Rubina Naseer ◽  
Aaliya Batool ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Abiotic Stress ◽  
Stress Tolerance ◽  
Abiotic Stress Tolerance ◽  
Underlying Mechanisms

scholarly journals The role of gibberellin signalling in plant responses to abiotic stress

2013 ◽  
Vol 217 (1) ◽  
pp. 67-75 ◽  
Author(s):  
E. H. Colebrook ◽  
S. G. Thomas ◽  
A. L. Phillips ◽  
P. Hedden
Keyword(s):  
Abiotic Stress ◽  
Plant Responses

Role of Salicylic Acid in Survival Strategy of Plants under Changing Environment

2016 ◽  
Vol 2 (1 and 2) ◽  
pp. 79-86
Author(s):  
Pramod K. Singh
Keyword(s):  
Salicylic Acid ◽  
Present Report ◽  
Defense Responses ◽  
Survival Strategies ◽  
Plant Responses ◽  
Changing Environment ◽  
Mediating Role ◽  
Adverse Environmental Conditions ◽  
Oxidative System

In recent years salicylic acid (SA) has been the focus of intensive research due to its function as an endogenous signal mediating role in defense responses after pathogen attack. SA antagonizes gene induction by the stress signaling molecule jasmonic acid (JA). It has also been found that SA plays a role during the plant responses to abiotic stresses. The discovery of its targets and understanding of its mechanism of the action in physiological and molecular processes could help in the sustainable plant productivity. Present report focused on various survival strategies of plants under changing environment and the role of SA in cross-talk signaling, osmoregulation, anti-oxidative system and induction of protein kinases under adverse environmental conditions.

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