Role of Polyamines in Plant Abiotic Stress Responses

2014 ◽  
pp. 399-418 ◽  
Keyword(s):  
Abiotic Stress ◽  
Stress Responses ◽  
Plant Abiotic Stress

scholarly journals Long non-coding RNAs: emerging players regulating plant abiotic stress response and adaptation

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Uday Chand Jha ◽  
Harsh Nayyar ◽  
Rintu Jha ◽  
Muhammad Khurshid ◽  
Meiliang Zhou ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Abiotic Stresses ◽  
Metal Toxicity ◽  
Molecular Mechanisms ◽  
Abiotic Stress Response ◽  
Non Coding Rnas ◽  
Plant Abiotic Stress

Abstract Background The immobile nature of plants means that they can be frequently confronted by various biotic and abiotic stresses during their lifecycle. Among the various abiotic stresses, water stress, temperature extremities, salinity, and heavy metal toxicity are the major abiotic stresses challenging overall plant growth. Plants have evolved complex molecular mechanisms to adapt under the given abiotic stresses. Long non-coding RNAs (lncRNAs)—a diverse class of RNAs that contain > 200 nucleotides(nt)—play an essential role in plant adaptation to various abiotic stresses. Results LncRNAs play a significant role as ‘biological regulators’ for various developmental processes and biotic and abiotic stress responses in animals and plants at the transcription, post-transcription, and epigenetic level, targeting various stress-responsive mRNAs, regulatory gene(s) encoding transcription factors, and numerous microRNAs (miRNAs) that regulate the expression of different genes. However, the mechanistic role of lncRNAs at the molecular level, and possible target gene(s) contributing to plant abiotic stress response and adaptation, remain largely unknown. Here, we review various types of lncRNAs found in different plant species, with a focus on understanding the complex molecular mechanisms that contribute to abiotic stress tolerance in plants. We start by discussing the biogenesis, type and function, phylogenetic relationships, and sequence conservation of lncRNAs. Next, we review the role of lncRNAs controlling various abiotic stresses, including drought, heat, cold, heavy metal toxicity, and nutrient deficiency, with relevant examples from various plant species. Lastly, we briefly discuss the various lncRNA databases and the role of bioinformatics for predicting the structural and functional annotation of novel lncRNAs. Conclusions Understanding the intricate molecular mechanisms of stress-responsive lncRNAs is in its infancy. The availability of a comprehensive atlas of lncRNAs across whole genomes in crop plants, coupled with a comprehensive understanding of the complex molecular mechanisms that regulate various abiotic stress responses, will enable us to use lncRNAs as potential biomarkers for tailoring abiotic stress-tolerant plants in the future.

The role of ABA and MAPK signaling pathways in plant abiotic stress responses

2014 ◽  
Vol 32 (1) ◽  
pp. 40-52 ◽  
Author(s):  
Agyemang Danquah ◽  
Axel de Zelicourt ◽  
Jean Colcombet ◽  
Heribert Hirt
Keyword(s):  
Abiotic Stress ◽  
Signaling Pathways ◽  
Stress Responses ◽  
Mapk Signaling ◽  
Mapk Signaling Pathways ◽  
Plant Abiotic Stress

scholarly journals To Fight or to Grow: The Balancing Role of Ethylene in Plant Abiotic Stress Responses

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 33
Author(s):  
Hao Chen ◽  
David A. Bullock ◽  
Jose M. Alonso ◽  
Anna N. Stepanova
Keyword(s):  
Abiotic Stress ◽  
Plant Growth ◽  
Stress Responses ◽  
Molecular Mechanisms ◽  
Nutrient Deficiency ◽  
Negative Effects ◽  
Adverse Conditions ◽  
Adverse Environmental Conditions ◽  
Plant Abiotic Stress

Plants often live in adverse environmental conditions and are exposed to various stresses, such as heat, cold, heavy metals, salt, radiation, poor lighting, nutrient deficiency, drought, or flooding. To adapt to unfavorable environments, plants have evolved specialized molecular mechanisms that serve to balance the trade-off between abiotic stress responses and growth. These mechanisms enable plants to continue to develop and reproduce even under adverse conditions. Ethylene, as a key growth regulator, is leveraged by plants to mitigate the negative effects of some of these stresses on plant development and growth. By cooperating with other hormones, such as jasmonic acid (JA), abscisic acid (ABA), brassinosteroids (BR), auxin, gibberellic acid (GA), salicylic acid (SA), and cytokinin (CK), ethylene triggers defense and survival mechanisms thereby coordinating plant growth and development in response to abiotic stresses. This review describes the crosstalk between ethylene and other plant hormones in tipping the balance between plant growth and abiotic stress responses.

scholarly journals Jasmonic Acid in Plant Abiotic Stress Tolerance and Interaction with Abscisic Acid

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1886
Author(s):  
Hui Jin Kim ◽  
Subhin Seomun ◽  
Youngdae Yoon ◽  
Geupil Jang
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Jasmonic Acid ◽  
Stress Responses ◽  
Abiotic Stresses ◽  
Crucial Role ◽  
Abiotic Stress Tolerance ◽  
Plant Responses ◽  
Plant Abiotic Stress

The phytohormone jasmonic acid (JA), a cyclopentane fatty acid, mediates plant responses to abiotic stresses. Abiotic stresses rapidly and dynamically affect JA metabolism and JA responses by upregulating the expression of genes involved in JA biosynthesis and signaling, indicating that JA has a crucial role in plant abiotic stress responses. The crucial role of JA has been demonstrated in many previous studies showing that JA response regulates various plant defense systems, such as removal of reactive oxygen species and accumulation of osmoprotectants. Furthermore, increasing evidence shows that plant tolerance to abiotic stresses is linked to the JA response, suggesting that abiotic stress tolerance can be improved by modulating JA responses. In this review, we briefly describe the JA biosynthetic and signaling pathways and summarize recent studies showing an essential role of JA in plant responses and tolerance to a variety of abiotic stresses, such as drought, cold, salt, and heavy metal stress. Additionally, we discuss JA crosstalk with another key stress hormone, abscisic acid, in plant abiotic stress responses.

scholarly journals Involvement of Histone Modifications in Plant Abiotic Stress Responses

2013 ◽  
Vol 55 (10) ◽  
pp. 892-901 ◽  
Author(s):  
Lianyu Yuan ◽  
Xuncheng Liu ◽  
Ming Luo ◽  
Songguang Yang ◽  
Keqiang Wu
Keyword(s):  
Abiotic Stress ◽  
Histone Modifications ◽  
Stress Responses ◽  
Plant 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 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
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