2 edition of Cell division and embryogenic competence in alfalfa (Medicago falcata L.) found in the catalog.
Cell division and embryogenic competence in alfalfa (Medicago falcata L.)
Thesis (Ph.D) - De Montfort University, Leicester 2000.
|Contributions||De Montfort University.|
Vol. 15(36), pp. , 7 September, DOI: /AJB Article Number: 9DB ISSN Copyright © Author(s) retain the copy. Pasternak TP (). The role of auxin, pH, and stress in the activation of embryogenic cell division in leaf protoplast-derived cells of alfalfa. Plant Physiol. Cited by: 5.
The role of auxin, pH, and stress in the activation of embryogenic cell division in leaf protoplast-derived cells of Alfalfa. Plant Physiol. ; [ Links ] Pearce G, Marchand PA, Griswold J, Lewis NG, Ryan C. Accumulation of feruloyltyramine and p-coumaroyltyramine in Cited by: 2. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuu’s.
Full text of "Plasmodesmata: structure, function, role in cell communication" See other formats. plastids and the area fraction occupied by RER and golgi cisternae, differ in the generative cells of potentially embryogenic and non-embryogenic pollen . Cause of Symmetrical Division Symmetrical division, rarely found in normal gametophytic development, is essential for the sporophytic embryogenesis in some taxa [28, 43, 44].
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Culturing leaf protoplast-derived cells of the embryogenic alfalfa (Medicago sativa subsp. varia A2) genotype in the presence of low (1 μm) or high (10 μm) 2, 4-dichlorophenoxyacetic acid (2,4-D) concentrations results in different cell types. Cells exposed to high 2,4-D concentration remain small with dense cytoplasm and can develop into proembryogenic cell clusters, whereas protoplasts.
Here we try to summarise the present knowledge on the early induction phase of embryogenic competence of somatic plant cells including some of our recent results using alfalfa.
After re-initiation of cell division and a period of cell. S.R., () Genetic c ontrol of somatic embryogenesis in alfalfa. Genome, markers of embryogenic competence. The. Ötvös K, Pasternak TP, Miskolczi P, Domoki M, Dorjgotov D, Szûcs A, Bottka S, Dudits D, Fehér A () Nitric oxide is required for, and promotes auxin-mediated activation of, cell division and embryogenic cell formation but does not influence cell cycle progression in alfalfa cell cultures.
A homolog of the cell cycle control protein p34 cdc2 participates in the division cycle of Chlamydomonas,and a similar protein is detectable in higher plants and remote taxa, Plant Cell Cited by: Cyclin-dependent serine/threonine kinases (CDKs) have pivotal roles in regulating the eukaryotic cell cycle.
Plants possess a unique class of CDKs (B-type CDKs) with preferential protein accumulation at G2/M-phases; however, their exact functions are still enigmatic. Here we describe the functional characterization of a bp promoter region of the alfalfa (Medicago sativa) CDKB2;1.
SERK (somatic embryogenesis receptor kinase) was originally identified as a gene that marks the embryonic competence in carrot cell culture (Schmidt et al., ).
Both reverse transcription (RT)-PCR and SERK promoter::luciferase analysis indicate that SERK is highly expressed in embryogenic cell cultures and transiently during somatic. Pasternak TP, Prinsen E, Ayaydin F, Miskolczi P, Potters G, Asard H, Van Onckelen HA, Dudits D, Fehér A () The role of auxin, pH, and stress in the activation of embryogenic cell division in leaf protoplast-derived cells of alfalfa.
Plant Physiol – CrossRef PubMed Google Scholar. Embryogenic cells in Dactylis glomerata L. (Poaceae) explants identified by cell tracking and by SERK expression. Plant Cell Rep. Sopory, S.K. and Munshi, M. The embryogenic cells have also been reported to express a gene that encodes a cell surface-located receptor-like protein, but the target or the function of the protein is unknown.
Other studies have correlated embryogenic cells with the production of an arabinogalactan protein (for AGP, see Chapter 2), which can be localized in the cell wall. Poulsen G B, Frugis G, Albrechtsen M and Mariotti D () Synthesis of extracellular proteins in embryogenic and non-embryogenic cell cultures of alfalfa.
Plant Cell Tiss. Org. Cult., – CrossRef Google Scholar. Manchurian ash (Fraxinus mandshurica Rupr.) is a valuable hardwood species in Northeast China.
In cultures of F. mandshurica, somatic embryos were produced mainly on browned explants. Therefore, we studied the mechanism of explant browning and its relationship with somatic embryogenesis (SE).
We used explants derived from F. mandshurica immature zygotic embryo cotyledons as by: 8. Histidine protein kinases are members of two-component signaling relays.
Two-component systems have been shown to be important in both cytokinin and ethylene signal transduction in plants. Histidine protein kinases and two-component systems are covered in another chapter of The Arabidopsis Book (Schaller et al., ).Cited by: The molecular mechanisms underlying the initiation and maintenance of the embryonic pathway in plants are largely unknown.
To obtain more insight into these processes, we used subtractive hybridization to identify genes that are upregulated during the in vitro induction of embryo development from immature pollen grains of Brassica napus (microspore embryogenesis).Cited by: DcSERK1 (from Daucus carota) was the first family member to be isolated and is a marker for competence of cells to form somatic embryos (Schmidt et al., ).
The Arabidopsis ortholog of DcSERK1 (SERK1) also appears to enhance embryogenic competence in culture and is expressed in developing embryos and ovules (Hecht et al., ). However Cited by: Embryogenic callus formation is followed by the development of proembryogenic masses (PEMs) on the surface or within the callus mass, from which single cells or cell clusters develop into embryos (Halperin, ; Toonen et al., ).
Callus and PEMS are usually observed after treatment with auxins, especially 2,4‐D, and while auxin promotes Cited by: Somatic embryogenesis, the initiation of embryos from previously differentiated somatic cells, is a unique process in plants.
This volume expands our view of a subject that is important for plant biotechnology, genetics, cell biology, development, and agricultural applications.
Isolation and characterization of LEAFY COTYLEDON 1-LIKE gene related to embryogenic competence in Citrus sinensis. Plant Cell Tiss. Org. Cult. (1), 1– /s [Google Scholar] Zimmerman J.
Somatic embryogenesis: a model for early development in higher plants. Understanding the mechanisms whereby plant development is regulated is crucial for crop improvement using genetic engineering. This work, comprising two volumes, reviews recent advances in plant developmental biology and explores the possibility of their practical applications from.
The effects of auxins 2,4-D (2,4-dichlorophenoxyacetic acid), NAA (1-naphthaleneacetic acid) or picloram (4-amino-3,5,6-trichloropicolinic acid; 9 µM) and cytokinin BA (benzyloadenine; µM) applied in the early stages of somatic embryogenesis (SE) on specific stages of SE in Picea abies and P.
omorika were investigated. The highest SE initiation frequency was obtained after 2,4. Somatic embryogenesis is commonly used for clonal propagation of a wide variety of plant species.
Induction of protocorm-like-bodies (PLBs), which are capable of developing into individual plants, is a routine tissue culture-based practice for micropropagation of orchid plants.
Even though PLBs are often regarded as somatic embryos, our recent study provides molecular evidence to argue that Author: Jhun-Chen Chen, Chii-Gong Tong, Hsiang-Yin Lin, Su-Chiung Fang.MEYER Y.
& ABEL W.O. a Importance of the cell wall for cell division and in the activity of the cytoplasm in cultured tobacco protoplasts. Planta The moss Physcomitrella patens is a model system for studying Plant developmental processes.
To better understand the biochemical and physiological changes involved in developmental reprogramming, we conducted a quantitative proteomics analysis for protonemata, protoplasts made therefrom and protoplasts regenerated for 2 by: 3.