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Regulated expression of a calmodulin isoform alters growth and development in potato

Regulated expression of a calmodulin isoform alters growth and development in potato

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Amino acids.,
  • Vegetation growth.,
  • Potatoes.

  • Edition Notes

    StatementB.W. Poovaiah ... [et al.].
    Series[NASA contractor report] -- NASA-CR-204748., NASA contractor report -- NASA CR-204748.
    ContributionsPoovaiah, B. W., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15509268M

    HDAC7 possesses little intrinsic deacetylase activity and therefore requires association with the class I HDAC, HDAC3 in order to suppress gene expression. It has been demonstrated through crystal structures of the human HDAC7 that the catalytic domain of HDAC7 has an additional class IIa HDAC-specific zinc binding motif adjacent to the active Aliases: HDAC7, HD7A, HDAC7A, HD7, . Breast cancer (BC) is the most common form of carcinoma and a primary cause of morbidity and mortality globally. Oxidative stress represents as an important factor in carcinogenesis and may play a role in initiation and progression of tumors. Oxidative stress–induced NO• damage to DNA includes a multitude of lesions, many of which are mutagenic and have multiple roles in cancer and by: 1. Regulation of Gene Expression in Response to Abiotic Stress in Plants. Growth and development of most vascular plant species are restricted by flooding, this type of stress alters the partition of carbohydrates for the production of xylem cells and the cell wall thickening (Kozlowski, ).Cited by: 5. Introduction. Potato (Solanum tuberosum L.) is the third most important food crop than a billion people consume potato, and its production reached million metric tons in (Kadota et al., ; McIntyre, ).However, potato production and quality are severely constrained by numerous diseases, such as bacterial wilt, caused by Ralstonia solanacearum (Champoiseau et al Cited by: 1.


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Regulated expression of a calmodulin isoform alters growth and development in potato Download PDF EPUB FB2

Ing the expression of PCM 1 alters growth and development in potato plants. Key words: Solanum tuberosum L., calmodulin, tuberization and transgenic plants. Introduction Calmodulin, a Ca2+-binding regulatory protein is known to play a pivotal role in Ca 2 + signaling in eukaryotes. Calmo-dulin is considered to be multifunctional because of its ability.

The expression of different calmodulin isoforms (PCM1, 5, 6, and 8) was studied in transgenic plants. Among the four potato calmodulin isoforms, only the expression of PCM1 mRNA was altered in transgenic plants, while the expression of other isoforms was not significantly by: Get this from a library.

Regulated expression of a calmodulin isoform alters growth and development in potato. [B W Poovaiah; United States. National Aeronautics and Space Administration.;]. The expression of different calmodulin isoforms (PCM1, 5, 6, and 8) was studied in transgenic plants.

Among the four potato calmodulin isoforms, only the expression of PCM 1 mRNA was altered in transgenic plants, while the expression of other isoforms was not signifi- cantly altered. Among the four potato calmodulin isoforms, only the expression of PCM 1 MRNA was altered in transgenic plants, while the expression of other isoforms was not significantly altered.

Western analysis revealed increased PCM 1 protein in transgenic plants, indicating that the expression of both MRNA and protein are altered in transgenic plants. In an earlier report we found that upregulated expression of one CaM isoform (PCM1) resulted in increased growth and apical dominance in pot similar to the results of brassinosteroid Cited by: The induced expression of at least some of these calmodulin-related genes is mediated by a rise in cytosolic Ca 2+ in response to the external stimulus [17].

The dynamic modulation of calmodulin gene expression in plants is also reflected in gene-specific, developmentally regulated, organ- Cited by:   Poovaiah BW, Takezawa D, An G et al () Regulated expression of a calmodulin isoform alters growth and development in potato.

J Plant Physiol – PubMed CrossRef Google Scholar Popescu SC, Popescu GV, Bachan S et al () Differential binding of calmodulin-related proteins to their targets revealed through high-density Arabidopsis Cited by: 5. Poovaiah BW, Takezawa D, An G, Han TJ () Regulated expression of a calmodulin isoform alters growth and development in potato.

Plant PhysiologyPuonti-Kaerlas J () Cassava Biotechnology. Biotechnology and Genetic Engineering Revi Rateaver B () Anatomy and regeneration in the stem and root of Manihot. Calmodulin gene expression and calcium/calmodulin dependent protein kinase II in plants.

In Proc. Cold Spring Harbor Symp. Plant Signal transduction, Cold Spring Harbor Laboratory, Cold Cited by: 6. Regulated expression of a calmodulin isoform alters growth and development in potato.

Plant Physiol. ; View in ArticleCited by:   Ca2+/calmodulin has an essential role in sensing and transducing environmental stimuli4,5.

Arabidopsis DWARF1 (DWF1) is responsible for an early step in brassinosteroid biosynthesis that converts Cited by:   Transgenic plants overexpressing a potato calmodulin isoform, PCM1, were found to be inhibited in their tuberization response Regulated expression of a calmodulin isoform alters growth and development in potato.

and sucrose in the regulation of potato tuber formation in vitro. of calmodulin on plant growth and development, we produced independent transgenic potato plants car- rying potato calmodulin cDNA (PCM-1) in sense or.

B W Poovaiah's research works with 7, citations and 5, reads, including: Enhanced Salt Tolerance of Rhizobia-inoculated Soybean Correlates with Decreased Phosphorylation of the.

Poovaiah, B.W. and Du, L. Size and/or growth engineering by modulation of the interaction between calmodulin, and brassinosteroid biosynthetic enzymes and orthologs thereof. (Patent pending) RESEARCH AWARDS/ACHIEVEMENTS: American Society for Horticultural Science – Publication Award for the most outstanding research paper.

The importance of calcium and calcium-binding proteins such as calmodulin in plant growth and development as well as plant response to environmental stimuli has been recognised for some time. However, it is only recently that the underlying mechanisms have begun to be unravelled.

A variety of intracellular calcium signatures have been observed in response to various stimuli. However, how Cited by: that its expression is developmentally regulated [8]. Potato calmodulin mRNA is highly expressed in the stolon tip, and its expression decreases during tuber development.

To study the genomic organization and expression of calmodulin genes, we have characterized different calmodulin clones from potato.

Furthermore, regulation of develop-Cited by:   INTRODUCTION. Calmodulin, a highly conserved and ubiquitous protein in eukaryotes, mediates Ca signals to various target proteins().A variety of regulatory enzymes and proteins such as protein kinases, ion channels, Ca pumps, nitric oxide synthetase, inositol trisphosphate kinase, cyclic nucleotide phosphodiesterase, and NAD kinase are known to be regulated by Ca and calmodulin(2.

Regulation of isoprenoid end-product synthesis required for normal growth and development in plants is not well understood. To investigate the extent to which specific genes for the enzyme 3-hydroxymethylglutaryl coenzyme A reductase (HMGR) are involved in end-product regulation, we manipulated expression of the HMG1 and HMG2 genes in tomato (Lycopersicon Cited by: Contractile Activity Regulates Isoform Expression and Polysialylation of NCAM in Cultured Myotubes: Involvement of Ca 2+ and Protein Kinase C Victor F.

Rafuse and Lynn Landmesser Department of Neurosciences, Case Western Reserve University, School of. Function. Calmodulin 1 is the archetype of the family of calcium-modulated proteins of which nearly 20 members have been are identified by their occurrence in the cytosol or on membranes facing the cytosol and by a high affinity for ulin contains amino acids and has 4 calcium-binding EF hand motifs.

Its functions include roles in growth and the cell cycle as well Aliases: CALM1, CALML2, CAMI, CPVT4. PP7 is the first protein Ser/Thr phosphatase to be found to interact with calmodulin (CaM) in plants. The T‐DNA insertion AtPP7 knockout line and AtPP7 overexpression lines were employed to study the specific function of AtPP7.

The AtPP7 knockout impaired the thermotolerance of Arabidopsis seedlings while the overexpression of AtPP7 resulted in plants with increased thermotolerance.

For instance, studies on stress gene regulation in tobacco (Nicotiana tabacum) showed that wind-induced expression of one CaM isoform is regulated by a Ca 2+-signaling pathway in the nucleus, while expression of a cold shock–induced isoform is regulated by a pathway in the cytoplasm (van Der Luit et al., ).

To investigate the in vivo functions of expansins, we generated transgenic rice plants that express sense and antisense constructs of the expansin gene OsEXP4. In adult plants with constitutive OsEXP4 expression, 12% of overexpressors were taller and 88% were shorter than the average control plants, and most overexpressors developed at least two additional by: Eukaryotes are often subjected to different kinds of stress.

In order to adjust to such circumstances, eukaryotes activate stress–response pathways and regulate gene expression. Eukaryotic gene expression consists of many different steps, including transcription, RNA processing, RNA transport, and translation.

In this review article, we focus on both transcriptional and post-transcriptional Author: Koh Nakayama, Naoyuki Kataoka. Abstract.

Tuberization in potato is controlled by hormonal and environmental signals. Ca 2+, an important intracellular messenger, and calmodulin (CaM), one of the primary Ca 2+ sensors, have been implicated in controlling diverse cellular processes in plants including tuberization.

The regulation of cellular processes by CaM involves its interaction with other proteins. Arabidopsis calmodulin isoforms CaM2/3/5 and CaM7 negatively regulate Ca 2+ conductivity during heat shock by binding to an atypical IQ motif in cyclic nucleotide-gated ion channel 6. Growth and Development.

Partial defoliation up-regulated photosynthesis and down-regulated expression of sucrose export-related genes in tomato leaves. Brassinosteroids (BRs) are a group of polyhydroxylated plant steroid hormones that are crucial for many aspects of a plant’s life.

BRs were originally characterized for their function in cell elongation, but it is becoming clear that they play major roles in plant growth, development, and responses to several stresses such as extreme temperatures and by: 3. Abstract. Potato Homeobox 15 (POTH15) is a KNOX-I (Knotted1-like homeobox) family gene in potato that is orthologous to Shoot Meristemless (STM) in e numerous reports on KNOX genes from different species, studies in potato are limited.

Here, we describe photoperiodic regulation of POTH15, its overexpression phenotype, and identification of its potential targets in potato Cited by: 2. Nature and Cell.

Calcium/Calmodulin is Critical for Brassinosteroid Biosynthesis and Plant Growth appeared in print on Septem ().Read about the effect of calcium/calmodulin on plant growth at the Nature website.

Cardiac remodeling occurs after cardiac pressure/volume overload or myocardial injury during the development of heart failure and is a determinant of heart failure.

Preventing or reversing remodeling is a goal of heart failure therapy. Human cardiomyocyte Na+/K+-ATPase has multiple α isoforms (1–3). The expression of the α subunit of the Na+/K+-ATPase is often altered in hypertrophic and Cited by: Heterotrimeric guanine-nucleotide-binding proteins (G-proteins) play key roles in responses to various abiotic stress responses and tolerance in plants.

However, the detailed mechanisms behind these roles remain unclear. Mulberry (Morus alba L.) can adapt to adverse abiotic stress conditions; however, little is known regarding the associated molecular by: 5.

two isoforms, one of which (isoform 2) excludes one of the exons of the other (isoform 1), it is evident that in the uniform sampling model, there are only three categories for the two isoforms. The total length of isoform 1 is 2, The total length of isoform 2 is 2, Hence, computing ai,j by summing over the sampling rate vectors of the File Size: 1MB.

Vaka S. Reddy and A.S.N. Reddy () The calmodulin-binding domain from a plant kinesin functions as modular domain in conferring calcium/calmodulin regulation to animal plus- and minus-end kinesins. In plants, SnRK1 is directly involved in the regulation of carbohydrate metabolism (Halford et al., ; Polge and Thomas, ).Antisense expression of SnRK1 in barley (Hordeum vulgare) produces pollen with no starch and arrests at the binucleate state of development (Zhang et al., ).In Arabidopsis, starch degradation was impaired in a transient akin10, akin11 double mutant Cited by: Global warming is causing a negative impact on plant growth and adversely impacts on crop yield.

MicroRNAs (miRNAs) are critical in regulating the expression of genes involved in plant development as well as defense responses.

The effects of miRNAs on heat-stressed Arabidopsis warrants further investigation. Heat stress increased the expression of miR and its precursors but considerably.

Translation is tightly regulated during growth and development, and our results suggest that it is controlled by alternative isoform expression. In yeast, the energy homeostasis regulators TOR and PKA affect transcriptional regulation of ribosomal proteins, linking their expression to nutrient availability (Martin et al.

Abstract. Potato internodal segments (INS) treated with the auxin 2,4-dichlorophenoxyacetic acid can be induced to develop somatic embryos upon their transfer to an auxin-free medium, while the continuous presence of auxin in the medium suppresses the progression of embryogenically-induced somatic cells to Cited by: «hide 10 20 30 40 50 mattvtctrf tdeyqlyedi gkgafsvvrr cvklctghey aakiintkkl 60 70 80 90 sardhqkler earicrllkh snivrlhdsi seegfhylvf dlvtggelfe divareyyse adashciqqi leavlhchqm gvvhrdlkpe nlllaskckg aavkladfgl aievqgdqqa wfgfagtpgy lspevlrkea ygkpvdiwac gvilyillvg yppfwdedqh klyqqikaga ydfpspewdt vtpeaknlin.

Highlights A total of proteins during tuberization in vitro were identified and classified into 9 distinctive expression patterns.

Eight novel proteins were identified, containing aquaporin, calmodulin and DDTFR10 which expressed constantly throughout the tuberization in vitro. Photosynthesis-related proteins are most highly expressed at stolon.

Proteins in carbon metabolism .Calmodulin is a small Ca-binding protein that acts to transduce second messenger signals into a wide array of cellular responses. Plant calmodulins share many structural and functional features with their homologs from animals and yeast, but the expression of multiple protein isoforms appears to be a distinctive feature of higher plants.

Calmodulin acts by binding to short peptide sequences Cited by:   The present invention provides plant calcium/calmodulin-dependent protein kinase (CCaMK) nucleic acids, polypeptides, antibodies, and related methods. CCaMK genes are expressed in anthers in a developmental stage-specific manner.

Suppression of CCaMK expression, e.g., by an antisense transgene, results in male-sterility.