Free Radicals Mediate Systemic Acquired Resistance
| العنوان: | Free Radicals Mediate Systemic Acquired Resistance |
|---|---|
| المؤلفون: | Aardra Kachroo, Mohamed El-Shetehy, David Wendehenne, Caixia Wang, M.B. Shine, Pradeep Kachroo, Duroy A. Navarre, Keshun Yu |
| المساهمون: | Qingdao Agricultural University, Department plant pathology, Pennsylvania State University (Penn State), Penn State System-Penn State System, Washington State University (WSU), Agroécologie [Dijon], Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement |
| المصدر: | Cell Reports Cell Reports, Elsevier Inc, 2014, 7 (2), pp.348-355. ⟨10.1016/j.celrep.2014.03.032⟩ Cell Reports, Vol 7, Iss 2, Pp 348-355 (2014) Cell Reports 2 (7), 348-355. (2014) |
| بيانات النشر: | The Authors. Published by Elsevier Inc. |
| مصطلحات موضوعية: | 0106 biological sciences, [SDV]Life Sciences [q-bio], Arabidopsis, Pseudomonas syringae, Reductase, medicine.disease_cause, 01 natural sciences, chemistry.chemical_compound, cuticle formation, Inducer, Dicarboxylic Acids, skin and connective tissue diseases, lcsh:QH301-705.5, chemistry.chemical_classification, 0303 health sciences, Mutation, salicyclic-acid, Cell biology, defense, Glutathione Reductase, Biochemistry, Glycerophosphates, [SDE]Environmental Sciences, plant immunity, Systemic acquired resistance, s-nitrosoglutathione, Secondary infection, nitric-oxide, arabidopsis-thaliana, Biology, Nitric Oxide, General Biochemistry, Genetics and Molecular Biology, Nitric oxide, 03 medical and health sciences, medicine, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, 030304 developmental biology, Reactive oxygen species, Arabidopsis Proteins, fungi, cell-death, body regions, chemistry, lcsh:Biology (General), azelaic-acid, responses, Nitric Oxide Synthase, Reactive Oxygen Species, Function (biology), 010606 plant biology & botany |
| الوصف: | Summary: Systemic acquired resistance (SAR) is a form of resistance that protects plants against a broad spectrum of secondary infections. However, exploiting SAR for the protection of agriculturally important plants warrants a thorough investigation of the mutual interrelationships among the various signals that mediate SAR. Here, we show that nitric oxide (NO) and reactive oxygen species (ROS) serve as inducers of SAR in a concentration-dependent manner. Thus, genetic mutations that either inhibit NO/ROS production or increase NO accumulation (e.g., a mutation in S-nitrosoglutathione reductase [GSNOR]) abrogate SAR. Different ROS function additively to generate the fatty-acid-derived azelaic acid (AzA), which in turn induces production of the SAR inducer glycerol-3-phosphate (G3P). Notably, this NO/ROS→AzA→G3P-induced signaling functions in parallel with salicylic acid-derived signaling. We propose that the parallel operation of NO/ROS and SA pathways facilitates coordinated regulation in order to ensure optimal induction of SAR. : Nitric oxide (NO) and reactive oxygen species (ROS) serve as signaling molecules in diverse organisms. Here, Wang et al. show that NO and ROS also serve as inducers of systemic acquired resistance (SAR), an important form of broad-spectrum immunity in plants. Their results suggest that NO and ROS act in a concentration-dependent manner and in parallel with salicylic-acid-derived signaling to induce SAR. NO and ROS act as upstream signals in the pathway that includes azelaic acid, glycerol-3-phosphate, and the lipid-transfer-like proteins DIR1/AZI1. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2211-1247 |
| DOI: | 10.1016/j.celrep.2014.03.032 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43d1f3a7fc406fbad5cc52bb621b2600Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....43d1f3a7fc406fbad5cc52bb621b2600 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22111247 |
|---|---|
| DOI: | 10.1016/j.celrep.2014.03.032 |