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ROS Regulation during Plant Abiotic Stress Responses

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889450541 Year: Pages: 306 DOI: 10.3389/978-2-88945-054-1 Language: English
Publisher: Frontiers Media SA
Subject: Botany --- Science (General)
Added to DOAB on : 2017-07-06 13:27:36
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Abstract

Plants are continuously exposed to a wide range of environmental conditions, including cold, drought, salt, heat, which have major impact on plant growth and development. To survive, plants have evolved complex physiological and biochemical adaptations to cope with a variety of adverse environmental stresses. Among them, reactive oxygen species (ROS) are key regulators and play pivotal roles during plant stress responses, which are thought to function as early signals during plant abiotic stress responses. ROS were long regarded as unwanted and toxic by-products of physiological metabolism. However, ROS are now recognized as central players in the complex signaling network of cells. Therefore, a fine-tuning control between ROS production and scavenging pathways is essential to maintain non-toxic levels in planta under stressful conditions through enzymatic and non-enzymatic antioxidant defense systems. We focus on the roles of ROS during plant abiotic stress responses in this Research Topic. Plant responses to multiple abiotic stresses and effects of hormones and chemicals on plant stress responses have been carefully studies. Although functions of several stress responsive genes have been characterized and possible interactions between hormones and ROS are discussed, future researches are needed to functionally characterize ROS regulatory and signaling transduction pathways.Plants are continuously exposed to a wide range of environmental conditions, including cold, drought, salt, heat, which have major impact on plant growth and development. To survive, plants have evolved complex physiological and biochemical adaptations to cope with a variety of adverse environmental stresses. Among them, reactive oxygen species (ROS) are key regulators and play pivotal roles during plant stress responses, which are thought to function as early signals during plant abiotic stress responses. ROS were long regarded as unwanted and toxic by-products of physiological metabolism. However, ROS are now recognized as central players in the complex signaling network of cells. Therefore, a fine-tuning control between ROS production and scavenging pathways is essential to maintain non-toxic levels in planta under stressful conditions through enzymatic and non-enzymatic antioxidant defense systems. We focus on the roles of ROS during plant abiotic stress responses in this Research Topic. Plant responses to multiple abiotic stresses and effects of hormones and chemicals on plant stress responses have been carefully studies. Although functions of several stress responsive genes have been characterized and possible interactions between hormones and ROS are discussed, future researches are needed to functionally characterize ROS regulatory and signaling transduction pathways.

Hormonal Control of Important Agronomic Traits

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456864 Year: Pages: 416 DOI: 10.3389/978-2-88945-686-4 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Physiology
Added to DOAB on : 2019-01-23 14:53:43
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One of the goals of plant science is to improve agricultural sustainability, increasing yield, food diversity, and nutrition, while minimizing the negative impact on our environment. In response to internal and external cues, plant hormones control various aspects of plant growth and development. The wealth of our knowledge on plant hormones shall greatly advance sustainable agriculture.

Catalyzed Mizoroki–Heck Reaction or C–H activation

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ISBN: 9783039281381 9783039281398 Year: Pages: 182 DOI: 10.3390/books978-3-03928-139-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology --- Science (General)
Added to DOAB on : 2020-04-07 23:07:08
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In the last few decades, research on the elaboration by palladium-catalytic processes of C-C bonds or the activation of C–H bonds has increased considerably. Yet there is still room for much improvement in terms of selectivity, or enantioselectivity, via the development of new ligands or the study of the catalytic effect of other metals to carry out the same chemical transformations. In addition, the attention paid to environmentally friendly methods in terms of the quantities of catalysts, ligands, and solvents is currently indispensable. The Mizoroki-Heck reaction is one of these important catalytic methods which generates C-C bonds in organic synthesis and is also possible by C-H activation. This book, titled “Catalyzed Mizoroki-Heck Reaction or C-H activation” focuses on new advances in the formation of C-C bonds or new C-H activation methods. It contains original research papers and short reviews on the synthesis of biologically active compounds using these catalytic processes, the identification of new catalysts, of new conditions allowing selectivity or enantioselectivity, the activity and stability of catalyst under turnover conditions, and all improvements in catalytic processes.

Molecular Genetics, Genomics and Biotechnology of Crop Plants Breeding

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ISBN: 9783039288779 / 9783039288786 Year: Pages: 238 DOI: 10.3390/books978-3-03928-878-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Plant Sciences
Added to DOAB on : 2020-06-09 16:38:57
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This Special Issue on molecular genetics, genomics, and biotechnology in crop plant breeding seeks to encourage the use of the tools currently available. It features nine research papers that address quality traits, grain yield, and mutations by exploring cytoplasmic male sterility, the delicate control of flowering in rice, the removal of anti-nutritional factors, the use and development of new technologies for non-model species marker technology, site-directed mutagenesis and GMO regulation, genomics selection and genome-wide association studies, how to cope with abiotic stress, and an exploration of fruit trees adapted to harsh environments for breeding purposes. A further four papers review the genetics of pre-harvest spouting, readiness for climate-smart crop development, genomic selection in the breeding of cereal crops, and the large numbers of mutants in straw lignin biosynthesis and deposition.

Keywords

phloem metabolites --- electrospray ionisation --- mass spectrometry --- cultivar --- quality groups --- nitrogen --- faba bean --- zt-1 --- linkage map --- SSR --- ISSR --- Brassica napus --- GmDof4 --- GmDof11 --- oleic acid --- fatty acid composition --- differentially expressed genes --- drought --- RNA-seq --- RNA editing --- wheat --- climate change --- mapping populations --- genetic resources --- mutation breeding --- genome editing --- new plant breeding techniques --- “omics” data --- bioinformatics --- rice --- CRISPR/Cas9 --- Wx --- TGW6 --- mutations --- maintainer --- cytoplasmic male sterile --- amylose content --- anther --- protein --- cytoplasmic male sterility --- fertility restoration --- sunflower --- Rf1 gene --- GWAS --- Pentatricopeptide Repeats --- PPR genes --- association mapping --- candidate genes --- gene mapping --- lodicule --- non-open hull 1(noh1) --- rice --- crops --- quantitative genetics --- estimated breeding value --- genomic prediction --- plant breeding --- breeding scheme --- pedigree --- genetic value --- wheat --- pre-harvest sprouting --- seed dormancy --- abscisic acid --- gibberellin --- QTL/genes --- brown midrib --- cell wall --- gold hull and internode --- grass family --- lignin --- monolignol pathway --- mutational breeding --- orange lemma --- transgenic cereals --- SNP --- SSR --- next generation sequencing --- genotyping by sequencing --- Japanese plum --- SSR --- diversity --- genetic structure --- candidate genes --- genomic selection --- mutants --- ddRAD sequencing --- genotyping-by-sequencing --- CRISPR/Cas9 site directed mutagenesis --- genome-wide association scan --- genetic modification --- F1 hybrids --- QTL

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