Search results: Found 7

Listing 1 - 7 of 7
Sort by
Evolution of Gene Regulatory Networks in Plant Development

Authors: --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889454075 Year: Pages: 252 DOI: 10.3389/978-2-88945-407-5 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Botany
Added to DOAB on : 2018-11-16 17:17:57
License:

Loading...
Export citation

Choose an application

Abstract

During their life cycle plants undergo a wide variety of morphological and developmental changes. Impinging these developmental processes there is a layer of gene, protein and metabolic networks that are responsible for the initiation of the correct developmental transitions at the right time of the year to ensure plant life success. New omic technologies are allowing the acquisition of massive amount of data to develop holistic and integrative analysis to understand complex processes. Among them, Microarray, Next-generation Sequencing (NGS) and Proteomics are providing enormous amount of data from different plant species and developmental stages, thus allowing the analysis of gene networks globally. Besides, the comparison of molecular networks from different species is providing information on their evolutionary history, shedding light on the origin of many key genes/proteins. Moreover, developmental processes are not only genetically programed but are also affected by internal and external signals. Metabolism, light, hormone action, temperature, biotic and abiotic stresses, etc. have a deep effect on developmental programs. The interface and interplay between these internal and external circuits with developmental programs can be unraveled through the integration of systematic experimentation with the computational analysis of the generated omics data (Molecular Systems Biology).This Research Topic intends to deepen in the different plant developmental pathways and how the corresponding gene networks evolved from a Molecular Systems Biology perspective. Global approaches for photoperiod, circadian clock and hormone regulated processes; pattern formation, phase-transitions, organ development, etc. will provide new insights on how plant complexity was built during evolution. Understanding the interface and interplay between different regulatory networks will also provide fundamental information on plant biology and focus on those traits that may be important for next-generation agriculture.

Interplay between NO Signalling, ROS, and the Antioxidant System in Plants

Authors: --- --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889450695 Year: Pages: 206 DOI: 10.3389/978-2-88945-069-5 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Botany --- Science (General)
Added to DOAB on : 2017-07-06 13:27:36
License:

Loading...
Export citation

Choose an application

Abstract

Over the last decades, nitric oxide (NO) has emerged as an essential player in redox signalling. Reactive oxygen species (ROS) also act as signals throughout all stages of plant life. Because they are potentially harmful for cellular integrity, ROS and NO levels must be tightly controlled, especially by the classical antioxidant system and additional redox-active metabolites and proteins. Recent work provided evidence that NO and ROS influence each other’s biosynthesis and removal. Moreover, novel signalling molecules resulting from the chemical reaction between NO, ROS and plant metabolites have been highlighted, including N2O3, ONOO-, NO2, S-nitrosoglutathione and 8-NO2 cGMP. They are involved in diverse plant physiological processes, the best characterized being stomata regulation and stress defense. Taken together, these new data demonstrate the complex interactions between NO, ROS signalling and the antioxidant system. This Frontiers in Plant Science Research Topic aims to provide an updated and complete overview of this important and rapidly expanding area through original article and detailed reviews.

Illustrated Pollen Terminology

Authors: --- --- --- --- et al.
ISBN: 9783319713656 Year: Pages: 483 DOI: 10.1007/978-3-319-71365-6 Language: English
Publisher: Springer Nature
Subject: Medicine (General) --- Botany --- Geology --- Environmental Sciences
Added to DOAB on : 2020-02-04 11:21:03
License:

Loading...
Export citation

Choose an application

Abstract

This open access book offers a fully illustrated compendium of glossary terms and basic principles in the field of palynology, making it an indispensable tool for all palynologists. It is a revised and extended edition of “Pollen Terminology. An illustrated handbook,” published in 2009. This second edition, titled “Illustrated Pollen Terminology” shares additional insights into new and stunning aspects of palynology. In this context, the general chapters have been critically revised, expanded and restructured. The chapter “Misinterpretations in Palynology” has been extended with new research data and additional ambiguous terms, e.g., polyads vs. massulae; the chapter “Methods in Palynology” has been extensively enhanced with illustrated protocols showing the majority of the methods and techniques used when studying recent and fossil pollen with LM, SEM and TEM. Moreover, additional information about the description and publication of pollen data is provided in the chapter “How to Describe and Illustrate Pollen Grains.” Various other parts of the general chapters have now been updated and/or extended with more comprehensive textual passages and new illustrations. The chapter “Illustrated Pollen Terms” now features new and more appropriate examples of each term, including additional LM micrographs. Where necessary, the entries for selected pollen terms have been refined by rewording or adding definitions, illustrations, and new micrographs. Lastly, new terms are included, such as “suprasculpture” and the prefix “nano-“ for ornamentation features. The chapter “Illustrated Pollen Terms” is the main part of this book and comprises more than 300 widely used terms illustrated with over 1,000 high-quality images. It provides a detailed survey of the manifold ornamentation and structures of pollen, and offers essential insights into their stunning beauty.

"One rotten apple spoils the whole barrel": The plant hormone ethylene, the small molecule and its complexity

Authors: --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889196234 Year: Pages: 132 DOI: 10.3389/978-2-88919-623-4 Language: English
Publisher: Frontiers Media SA
Subject: Botany --- Science (General)
Added to DOAB on : 2016-08-16 10:34:25
License:

Loading...
Export citation

Choose an application

Abstract

The gaseous molecule ethylene (C2H4), which is small in size and simple in structure, is a plant hormone most often associated with fruit ripening yet has a diversity of effects throughout the plant life cycle. While its agricultural effects were known even in ancient Egypt, the complexity of its mode of action and the broad spectrum of its effects and potential uses in plant physiology remain important scientific challenges today. In the last few decades, the biochemical pathway of ethylene production has been uncovered, ethylene perception and signaling have been molecularly dissected, ethylene-responsive transcription factors have been identified and numerous effects of ethylene have been described, ranging from water stress, development, senescence, reproduction plant-pathogen interactions, and of course, ripening. Thus ethylene is involved in plant development, in biotic and abiotic stress, and in reproduction. There is no stage in plant life that is not affected by ethylene, modulated by a complex and fascinating molecular machinery.

Sowing Legume Seeds, Reaping Cash

Authors: --- --- --- --- et al.
ISBN: 9789811508455 Year: Pages: 106 DOI: 10.1007/978-981-15-0845-5 Language: English
Publisher: Springer Nature
Subject: Agriculture (General) --- Botany
Added to DOAB on : 2020-06-17 00:00:58
License:

Loading...
Export citation

Choose an application

Abstract

This open access book shares impact stories – testimonies from various value chain actors who have been part of the Tropical Legumes (TL) projects, over the past twelve years. The Tropical Legumes projects led by ICRISAT in three parts (TLI, TLII and TLIII), constitute a major international initiative supported by the Bill & Melinda Gates Foundation (BMGF) and jointly implemented by the International Center for Tropical Agriculture (CIAT), International Institute of Tropical Agriculture (IITA) and National Agricultural Research Systems (NARS) partners from Sub-Saharan Africa and India. The project developed improved cultivars of common bean, cowpea, chickpea and groundnut (but also soya bean and pigeon pea cultivars in its initial phases) and delivers their seed to smallholders in BMGF-focus areas. It also strengthens the NARS and CGIAR's breeding programs and seed platforms to enhance their ability to deliver high and sustained outputs to smallholder farmers. The book compiles the experiences of a diversity of actors within the grain legume value chains, with a focus on groundnut and common beans in Tanzania and Uganda, groundnut and cowpea in Nigeria, and groundnut in Ghana. All stakeholders involved share their thoughts on being part of a decade-long development project family. National agricultural research institutes, knowledge brokering organizations, NGOs, public and private seed companies, agro-dealers, individual seed entrepreneurs, farm-implement makers, farmer cooperatives, farmer groups, individual men and women farmers, middlemen, processors, traders and consumers were all involved in this project, and as such this book provides valuable insights for development workers, technical staff, and project managers.

Plant Development and Organogenesis: From Basic Principles to Applied Research

Author:
ISBN: 9783039281268 9783039281275 Year: Pages: 246 DOI: 10.3390/books978-3-03928-127-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Plant Sciences --- Biology --- Science (General)
Added to DOAB on : 2020-01-30 16:39:46
License:

Loading...
Export citation

Choose an application

Abstract

The way plants grow and develop organs significantly impacts the overall performance and yield of crop plants. The basic knowledge now available in plant development has the potential to help breeders in generating plants with defined architectural features to improve productivity. Plant translational research effort has steadily increased over the last decade due to the huge increase in the availability of crop genomic resources and Arabidopsis-based sequence annotation systems. However, a consistent gap between fundamental and applied science has yet to be filled. One critical point often brought up is the unreadiness of developmental biologists on one side to foresee agricultural applications for their discoveries, and of the breeders to exploit gene function studies to apply to candidate gene approaches when advantageous on the other. In this book, both developmental biologists and breeders make a special effort to reconcile research on the basic principles of plant development and organogenesis with its applications to crop production and genetic improvement. Fundamental and applied science contributions intertwine and chase each other, giving the reader different but complementary perspectives from only apparently distant corners of the same world.

Keywords

wheat-rye hybrids --- genes of reproductive isolation --- stem apical meristem --- molecular marker --- Rht18 --- reduced height --- wheat --- semi-dwarf --- linkage map --- CLE --- CLV --- WUS --- stem cells --- meristem --- SAM --- signaling --- locule --- Arabidopsis --- auxin --- HD-Zip transcription factors --- light environment --- photoreceptors --- wounding --- root plasticity --- hydrogen peroxide --- protoxylem --- plant development and organogenesis --- proline biosynthesis --- RolD --- rol genes --- Vasculature --- Organogenesis --- Development --- Brassicaceae --- Asteraceae --- flowering time --- photoperiod --- vernalization --- ambient temperature --- gibberellins --- age --- plant breeding --- grass --- ligule --- organogenesis --- boundaries --- shoot meristem --- morphogenesis --- molecular regulation --- cell wall --- cytoskeleton --- Arabidopsis --- root --- stem cells --- root development --- differentiation --- ground tissue --- radial patterning --- proximodistal patterning --- Plant in vitro cultures --- somatic cell selection --- hairy roots --- rol genes --- Agrobacterium rhizogenes --- genetic transformation --- recalcitrant species --- KNOX transcription factors --- plant development --- tree phase change --- transformation --- morphogenic --- embryogenesis --- meristem formation --- organogenesis --- GRETCHEN HAGEN 3 (GH3) IAA-amido synthase group II --- root apical meristem --- auxin --- cytokinin --- lateral root cap --- auxin minimum --- auxin conjugation --- plant development and organogenesis --- translational research --- crop productivity --- genetic improvement --- Arabidopsis thaliana --- regulatory networks --- phytohormones --- rol genes --- plant cell and tissue culture

Jasmonic Acid Pathway in Plants

Author:
ISBN: 9783039284887 / 9783039284894 Year: Pages: 346 DOI: 10.3390/books978-3-03928-489-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Plant Sciences
Added to DOAB on : 2020-06-09 16:38:57
License:

Loading...
Export citation

Choose an application

Abstract

The plant hormone jasmonic acid (JA) and its derivative, an amino acid conjugate of JA (jasmonoyl isoleucine, JA-Ile), are signaling compounds involved in the regulation of defense and development in plants. The number of articles studying on JA has dramatically increased since the 1990s. JA is recognized as a stress hormone that regulates the plant response to biotic stresses such as herbivore and pathogen attacks, as well as abiotic stresses such as wounding and ultraviolet radiation. Recent studies have remarkably progressed the understanding of the importance of JA in the life cycle of plants. JA is directly involved in many physiological processes, including stamen growth, senescence, and root growth. JA regulates production of various metabolites such as phytoalexins and terpenoids. Many regulatory proteins involved in JA signaling have been identified by screening for Arabidopsis mutants. However, much more remains to be learned about JA signaling in other plant species. This Special Issue, “Jasmonic Acid Pathway in Plants”, contains 5 review and 15 research articles published by field experts. These articles will help with understanding the crucial roles of JA in its response to the several environmental stresses and development in plants.

Keywords

albino --- aroma --- Camellia sinensis --- chloroplast --- jasmonic acid --- light-sensitive --- stress --- tea --- volatile --- Panax ginseng --- gene expression --- ginsenoside --- methyl jasmonate --- MYB transcription factor --- dammarenediol synthase --- jasmonic acid --- signaling pathway --- environmental response --- biological function --- MeJA --- priming --- rice --- proteomics --- ROS --- chlorophyll fluorescence imaging --- MAP kinase --- jasmonate --- rice bacterial blight --- salicylic acid --- grain development --- Prunus avium --- Tuscan varieties --- jasmonic acid --- lipoxygenase --- bioinformatics --- gene expression --- heterotrimeric G proteins --- AtRGS1 --- jasmonates --- endocytosis --- diffusion dynamics --- Chinese flowering cabbage --- leaf senescence --- JA --- transcriptional activation --- adventitious rooting --- auxin --- ectopic metaxylem --- ectopic protoxylem --- ethylene --- hypocotyl --- jasmonates --- nitric oxide --- xylogenesis --- transcriptional regulators --- plant development --- jasmonic acid signaling --- gene expression --- Jasmonate-ZIM domain --- JAZ repressors --- Jas domain --- TIFY --- degron --- phylogenetic analysis --- ancestral sequences --- circadian clock --- jasmonic acid --- crosstalk --- jasmonic acid --- fatty acid desaturase --- multiseeded --- msd --- grain number --- MutMap --- sorghum --- Ralstonia solanacearum --- type III effector --- jasmonic acid --- salicylic acid --- Nicotiana plants --- PatJAZ6 --- jasmonic acid (JA) signaling pathway --- Pogostemon cablin --- patchouli alcohol --- biosynthesis --- jasmonate --- salt response --- Zea mays --- ROS --- proline --- ABA biosynthesis --- jasmonic acid --- crosstalk --- gibberellic acid --- cytokinin --- auxin --- jasmonic acid --- opr3 --- stress defense --- quantitative proteomics --- abiotic stresses --- jasmonates --- JA-Ile --- JAZ repressors --- transcription factor --- signaling --- antioxidant enzyme activity --- elicitor --- methyl jasmonate --- secondary metabolite --- signal molecules --- n/a

Listing 1 - 7 of 7
Sort by
Narrow your search