scholarly journals The Role of Homogentisate Phytyltransferase and Other Tocopherol Pathway Enzymes in the Regulation of Tocopherol Synthesis during Abiotic Stress

2003 ◽  
Vol 133 (2) ◽  
pp. 930-940 ◽  
Author(s):  
Eva Collakova ◽  
Dean DellaPenna
Keyword(s):  
Abiotic Stress ◽  
Homogentisate Phytyltransferase

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.

scholarly journals Metabolomics, a Powerful Tool for Understanding Plant Abiotic Stress

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 824
Author(s):  
Fredy P. Carrera ◽  
Carlos Noceda ◽  
María G. Maridueña-Zavala ◽  
Juan M. Cevallos-Cevallos
Keyword(s):  
Abiotic Stress ◽  
Abiotic Stresses ◽  
High Salinity ◽  
Living Organism ◽  
Resistance Strategies ◽  
Response To Stress ◽  
Biochemical State ◽  
Plant Abiotic Stress

Metabolomics is a technology that generates large amounts of data and contributes to obtaining wide and integral explanations of the biochemical state of a living organism. Plants are continuously affected by abiotic stresses such as water scarcity, high temperatures and high salinity, and metabolomics has the potential for elucidating the response-to-stress mechanisms and develop resistance strategies in affected cultivars. This review describes the characteristics of each of the stages of metabolomic studies in plants and the role of metabolomics in the characterization of the response of various plant species to abiotic stresses.

Role of agrochemical-based nanomaterials in plants: biotic and abiotic stress with germination improvement of seeds

2022 ◽  
Author(s):  
Mohadeseh Hassanisaadi ◽  
Mahmood Barani ◽  
Abbas Rahdar ◽  
Moslem Heidary ◽  
Anna Thysiadou ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Biotic And Abiotic Stress

Role of Nitric Oxide in Plant Abiotic Stress Tolerance

2020 ◽  
pp. 131-154
Author(s):  
Gábor Feigl ◽  
Árpád Molnár ◽  
Dóra Oláh ◽  
Zsuzsanna Kolbert
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Stress Tolerance ◽  
Abiotic Stress Tolerance ◽  
Plant Abiotic Stress

Role of Calcium in Conferring Abiotic Stress Tolerance

2019 ◽  
pp. 205-218
Author(s):  
Muhammad Naeem ◽  
Misbah Amir ◽  
Hamid Manzoor ◽  
Sumaira Rasul ◽  
Habib-ur-Rehman Athar
Keyword(s):  
Abiotic Stress ◽  
Stress Tolerance ◽  
Abiotic Stress Tolerance
Sign in / Sign up

Export Citation Format

Share Document