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When Bad Guys BecomeGood Ones: The KeyRole of ReactiveOxygen Species andNitric Oxide in thePlant Responses toAbiotic Stress Fernanda dos Santos FarnesePaulo Eduardo Menezes‐SilvaGrasielle Soares Gusman2016 год

When Bad Guys Become Good Ones: The Key Role of Reactive Oxygen Species and Nitric Oxide in the Plant Responses to Abiotic Stress
review

Полный текстСтраница публикацииПубликация в OpenAlex
Аннотация: The natural environment of plants is composed of a complex set of abiotic stresses and their ability to respond to these stresses is highly flexible and finely balanced through the interaction between signaling molecules. In this review, we highlight the integrated action between reactive oxygen species (ROS) and reactive nitrogen species (RNS), particularly nitric oxide (NO), involved in the acclimation to different abiotic stresses. Under stressful conditions, the biosynthesis transport and the metabolism of ROS and NO influence plant response mechanisms. The enzymes involved in ROS and NO synthesis and scavenging can be found in different cells compartments and their temporal and spatial locations are determinant for signaling mechanisms. Both ROS and NO are involved in long distances signaling (ROS wave and GSNO transport), promoting an acquired systemic acclimation to abiotic stresses. The mechanisms of abiotic stresses response triggered by ROS and NO involve some general steps, as the enhancement of antioxidant systems, but also stress-specific mechanisms, according to the stress type (drought, hypoxia, heavy metals, etc), and demand the interaction with other signaling molecules, such as MAPK, plant hormones and calcium. The transduction of ROS and NO bioactivity involves post-translational modifications of proteins, particularly S-glutathionylation for ROS, and S-nitrosylation for NO. These changes may alter the activity, stability, and interaction with other molecules or subcellular location of proteins, changing the entire cell dynamics and contributing to the maintenance of homeostasis. However, despite the recent advances about the roles of ROS and NO in signaling cascades, many challenges remain, and future studies focusing on the signaling of these molecules in planta are still necessary.
Год издания: 2016
Авторы: Fernanda dos Santos Farnese, Paulo Eduardo Menezes‐Silva, Grasielle Soares Gusman, Juraci Alves de Oliveira
Издательство: Frontiers Media
Источник: Frontiers in Plant Science
Ключевые слова: Plant Stress Responses and Tolerance, Plant responses to water stress, Photosynthetic Processes and Mechanisms
Другие ссылки: Frontiers in Plant Science (PDF)
Frontiers in Plant Science (HTML)
DOAJ (DOAJ: Directory of Open Access Journals) (HTML)
Europe PMC (PubMed Central) (PDF)
Europe PMC (PubMed Central) (HTML)
PubMed Central (HTML)
PubMed (HTML)