Relevant bibliographies by topics / Periderm

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Periderm'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Periderm.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Periderm"

1

Inácio, Vera, Carolina Lobato, José Graça, and Leonor Morais-Cecílio. "Cork cells in cork oak periderms undergo programmed cell death and proanthocyanidin deposition." Tree Physiology 41, no. 9 (February 22, 2021): 1701–13. http://dx.doi.org/10.1093/treephys/tpab031.

Full text
Abstract:
Abstract Vascular plants with secondary growth develop a periderm mostly composed of dead suberized cork cells to face environmental hostile conditions. Cork oak has a highly active and long-living phellogen forming a remarkably thick periderm that is periodically debarked for industrial purposes. This wounding originates the quick formation of a new traumatic periderm, making cork oak an exceptional model to study the first periderm differentiation during normal development in young sprigs and traumatic (wound) periderm formation after debarking. Here, we studied the poorly known first periderm differentiation steps that involve cell wall suberization, polyphenolic accumulation and programmed cell death (PCD) by combining transmission electron microscopy, histochemical and molecular methods in periderms from young sprigs. These processes were further compared with traumatic periderms formed after wounding using molecular and histochemical techniques, such as the polyphenolic accumulation. In the first periderms from young sprigs, four distinct differentiation stages were defined according to the presence of PCD morphological features. First young and traumatic periderms showed an upregulation of genes related to suberin biosynthesis, proanthocyanidins biosynthesis and transport, autophagy, and PCD. Traumatic periderms revealed an overall upregulation of these genes, likely resulting from ontogeny differences and distinct phellogen origin associated with a faster metabolism, highlighting the impact of wounding on phellogen activity after debarking. First periderms from young sprigs showed gradual accumulation of proanthocyanidins in the vacuoles throughout PCD stages until total filled lumens, whereas in traumatic periderms, these compounds were found cell wall linked in already empty cells. This work enabled a comprehensive overview of the cork cells differentiation processes contributing to deepening the knowledge of the fundamental ontogenic program of this protective tissue, which is also a unique forest product, constituting the basis of a sustainable and profitable industry.
APA, Harvard, Vancouver, ISO, and other styles
2

O'Gara, E., K. Howard, I. J. Colquhoun, B. Dell, J. McComb, and G. St E. J. Hardy. "The development and characteristics of periderm and rhytidome in Eucalyptus marginata." Australian Journal of Botany 57, no. 3 (2009): 221. http://dx.doi.org/10.1071/bt08225.

Full text
Abstract:
To understand the pathway used by Phytophthora cinnamomi Rands to penetrate the bark of jarrah, the present study describes unwounded periderm and rhytidome development. Periderm formation is described from its initiation in 4-week-old seedlings to the formation of rhytidome in saplings. Periderm in young seedlings consists of a single type of phellem, namely thin-walled suberised cells. In older seedlings where multiple layers of periderm have formed, layers of thick-walled lignified phellem cells in compacted bands alternate with thin-walled suberised cells. Rhytidome formation in older lignotuberous seedlings and in sapling jarrah occurs through the isolation of secondary phloem by periderm. The rhytidome consists of expanded and partially disintegrated secondary phloem tissue sandwiched between layers of phellem cells. Localised periderm formation beneath stomata results in the formation of lenticels, which are ephemeral features. Superficial periderms occur at sites of leaf and shoot abscission, and of lateral shoot emergence. Concealed axillary shoots lack cuticle on emergence. As the trees age, the internal production of lignified and suberised periderm and rhytidome results in an impenetrable barrier to invasion by P. cinnamomi. However, external sites including lenticels and leaf and shoot abscission and emergence areas, all provide points of ingress in unwounded stems.
APA, Harvard, Vancouver, ISO, and other styles
3

Kitamura, Kunio, Mariko Sezaki, and Masako Yanazawa. "Analysis of Embryonic Chick Periderm by Monoclonal Antibody Specific against Periderm1. (periderm/ectoderm/monoclonal antibody/cytokeratin/chick embryo)." Development, Growth and Differentiation 32, no. 2 (April 1990): 157–63. http://dx.doi.org/10.1111/j.1440-169x.1990.00157.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bates, Rick M., and Alexander X. Niemiera. "A Comparison of Morphological Features Affecting Water Loss in Norway Maple and Washington Hawthorn Stems." Journal of Environmental Horticulture 14, no. 2 (June 1, 1996): 71–76. http://dx.doi.org/10.24266/0738-2898-14.2.71.

Full text
Abstract:
Abstract Crataegus phaenopyrum (Washington hawthorn) stems are known to be more sensitive to water stress during cold storage than Acer platanoides (Norway maple). Histological examination revealed that maple stems had a highly suberized periderm, and uniform cuticle with few disruptions. Periderm suberization of hawthorn stems was variable and extensive peridermal cracking was evident. Cuticle wax decreased with increasing distance from the stem apex for both species. No differences in lenticellar characteristics were found between species. Results indicated that hawthorn stems had anatomical features that allowed for more water loss than maple stems, which may provide a possible explanation for differences in maple and hawthorn stem water loss rates.
APA, Harvard, Vancouver, ISO, and other styles
5

Evans, Lance S., and Phillip Dombrovskiy. "Anatomical Characteristics of Sunlight-induced Bark (Periderm) Coverages on Columnar Cacti of Central Mexico." Journal of Plant Studies 9, no. 2 (May 26, 2020): 20. http://dx.doi.org/10.5539/jps.v9n2p20.

Full text
Abstract:
More than twenty-three species of tall, long-lived columnar cacti from a large variety of locations within the Americas show sunlight-induced periderm development on their stems. Periderm coverages lead to cactus morbidity and mortality. Our objective was to determine if periderm coverage patterns and anatomical characteristics of periderm formation differ among five cactus species located at a single site. Periderm coverages, patterns of periderm coverages and histological changes during the periderm formation process were determined for five native species of tall, long-lived columnar cacti in the Tehuacán Valley of Puebla, Mexico during May to June 2019. Periderm coverages and patterns of periderm on cactus surface varied among the species. On surfaces, some species had periderm form at crests initially, while one species had initial periderm form where troughs join. All species had the same internal tissues but the characteristics of these tissues varied among species. In response to periderm formation, one species retained its cuticle while one species retained its hypodermis intact and another produced cork cells inside the hypodermis. Overall, the histological changes that result from periderm formation were specific for each species and no pair of species showed the same responses to periderm formation. In conjunction with data from species from South America, eight distinct scenarios of histological manifestations were documented. Although, each of the five cactus species were in the same location and received the same amount of sunlight exposures, each species showed unique periderm coverages on surfaces, unique anatomical characteristics and unique anatomical responses. Thus, location was not the primary determinant of responses.
APA, Harvard, Vancouver, ISO, and other styles
6

Antonio Alonso, Alexandre, and Silvia Rodrigues Machado. "Stem Protective Tissue in Erythroxylum Tortuosum (Erythroxylaceae), A Fire Tolerant Species from Cerrado." IAWA Journal 29, no. 1 (2008): 69–77. http://dx.doi.org/10.1163/22941932-90000171.

Full text
Abstract:
The origin and structure are described of the secondary protective tissue in the stem of Erythorxylum tortuosum Mart., a fire tolerant shrubby species common in Brazilian cerrado. The highly tortuous stems are covered with thick bark which is more developed at the base of the stem. After fire in the cerrado, rhytidome fragments of the burned stem flake off, revealing newly formed cork. The first periderm appears near of the terminal buds and is iniated by periclinal divisions in subepidermal cells giving rise to radial rows of cells. The first phellogen is discernible only after the differentiation of the several radial rows of cork cells. Other phellogens have their origin in successively deeper layers of the cortex. The sucessive periderms are discontinuous around the circumference. The collapsed cells with phenolic substances and the accumulated dead cells cause the formation of discontinuous blackish lines, which delimit the sucessive periderms in the rhytidome. The rhytidome contains large quantities of sclereids developed from cell wall thickening of cortex cells. The occurrence of periderm in the young parts of the stem and of rhytidome in the older parts represents pyrophytic characteristics and may explain, in part, the fire tolerance of this species.
APA, Harvard, Vancouver, ISO, and other styles
7

Khandelwal, Sharda, and H. K. Goswami. "Periderm in Ophioglossaceae." Acta Societatis Botanicorum Poloniae 46, no. 4 (2015): 541–646. http://dx.doi.org/10.5586/asbp.1977.053.

Full text
Abstract:
This paper describes the occurrence of periderm in three genera, <i>Botrychium</i> Swartz., <i>Helminthostachys</i> Kaulfuss, and <i>Ophioglossum</i> Linn. under field conditions. Not all plants of an area belonging to the same or different species possess it. Based on population survey it is suggested that production of functional cork cambium (phellogen), a feature unlike <i>Fillicenae</i> may be an inherited trait.
APA, Harvard, Vancouver, ISO, and other styles
8

Lev-Yadun, Simcha, and Roni Aloni. "Polar Patierns of Periderm Onfogeny, Their Relationship to Leaves and Buds, and the Control of Cork Formation." IAWA Journal 11, no. 3 (1990): 289–300. http://dx.doi.org/10.1163/22941932-90001185.

Full text
Abstract:
Patterns of periderm ontogeny were studied in vigorously growing branches and leaders of Calotropis procera (Ait.) Ait. f., Carissa grandiflora A. DC., Ficus elastica Roxb., Ficus religiosa L. and Melia azedarach L. In all of these five woody species the periderm develops in clear polar patterns, with inhibitory zones, in which periderm formation is delayed, just beneath leaf bases and around dormant buds. A high rate of periderm production is induced by high sun irradiation in Calotropis procera. The polar patterns of periderm formation with retardation regions around leaves and buds probably indicate auxin involvement in the control mechanism of periderm differentiation. The role of both auxin and ethylene in periderm formation is discussed, as weIl as a proposed mechanism for rhytidome initiation.
APA, Harvard, Vancouver, ISO, and other styles
9

Sabba, Robert P., and Edward C. Lulai. "Immunocytological Analysis of Potato Tuber Periderm and Changes in Pectin and Extensin Epitopes Associated with Periderm Maturation." Journal of the American Society for Horticultural Science 130, no. 6 (November 2005): 936–42. http://dx.doi.org/10.21273/jashs.130.6.936.

Full text
Abstract:
Potato (Solanum tuberosum L.) periderm forms a barrier at the surface of the tuber that protects it from infection and dehydration. Immature periderm is susceptible to excoriation (skinning injury), which results in costly storage loses and market quality defects. The periderm consists of three different cell types: phellem (skin), phellogen (cork cambium), and phelloderm (parenchyma-like cells). The phellogen serves as a lateral meristem for the periderm and is characterized by thin radial walls that are labile to fracture while the periderm is immature and the phellogen is actively dividing, thus rendering the tuber susceptible to excoriation. As the periderm matures the phellogen becomes inactive, its cell walls thicken and become resistant to fracture, and thus the tuber becomes resistant to excoriation. Little is known about the changes in cell wall polymers that are associated with tuber periderm maturation and the concurrent development of resistance to excoriation. Various changes in pectins (galacturonans and rhamnogalacturonans) and extensin may be involved in this maturational process. The objectives of this research were to compare immunolabeling of homogalacturonan (HG) epitopes to labeling of rhamnogalacturonan I (RG-I) and extensin epitopes to better understand the depositional patterns of these polymers in periderm cell walls and their involvement in tuber periderm maturation. Immunolabeling with the monoclonal antibodies JIM5 and JIM7 (recognizing a broad range of esterified HG) confirmed that HG epitopes are lacking in phellogen walls of immature periderm, but increased greatly upon maturation of the periderm. Labeling of a (1,4)-β-galactan epitope found in RG-I and recognized by the monoclonal antibody LM5 was abundant in phelloderm cell walls, but sparse in most phellem cell walls. LM5 labeling was very sparse in the walls of meristematically active phellogen cells of immature periderm, but increased dramatically upon periderm maturation. Deposition of a (1,5)-α-l-arabinan epitope found in RG-I and recognized by LM6 was abundant in phelloderm and phellogen cell walls, but was sparse in phellem cell walls. LM6 labeling of phellogen walls did not change upon periderm maturation, indicating that different RG-1 epitopes are regulated independently during maturation of the periderm. Labeling with the monoclonal antibody LM1 for an extensin epitope implied that extensin is lacking in phellem cell walls, but is abundant in phelloderm cell walls. Phellogen cell walls did not label with LM1 in immature periderm, but were abundantly labeled with LM1 in mature periderm. These immunolabeling studies identify pectin and extensin depositions as likely biochemical processes involved in the thickening and related strengthening of phellogen walls upon inactivation of the phellogen layer as a lateral meristem and maturation of the periderm in potato tuber. These results provide unique and new insight into the identities of some of the biological processes that may be targeted in the development of new technologies to enhance resistance to tuber skinning injury for improved harvest, handling and storage properties.
APA, Harvard, Vancouver, ISO, and other styles
10

Lev-Yadun, Simcha, and Roni Aloni. "Wound-Induced Periderm Tubes in the Bark of Melia Azedarach, Ficus Sycomorus and Platanus Acerifolia." IAWA Journal 12, no. 1 (1991): 62–66. http://dx.doi.org/10.1163/22941932-90001204.

Full text
Abstract:
Tubes of periderm were induced experimentally by wounding stems of Melia azedarach L., Ficus sycomorus L. and Platanus acerifolia Willd. This wounding stimulated the formation of periderm tubes around those strands of phloem fibres which were exposed to the outside atmosphere. The differentiation of periderm tubes inside the bark is a defence reaction by which the wound-exposed fibres are isolated from the living cells of the bark. The regulating factors of wound-induced periderm tubes are probably ethylene and atmospheric air.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Periderm"

1

Fowler, Tiffany B. Rushing Ann E. "Early periderm development in the shoots of Ulmus alata michx." Waco, Tex. : Baylor University, 2006. http://hdl.handle.net/2104/4899.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Boher, Genís Pau. "Functional genomics of the periderm: the biosynthetic gene FHT, the transcriptional regulator StRiK and the transcriptome deciphering." Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/403400.

Full text
Abstract:
We have developed new molecular tools to characterize the FHT and StRIK genes in the tuber periderm. Regarding FHT gene, our results demonstrated that is induced very specifically in suberizing tissues what makes FHT a good marker of the suberization process. Regarding StRIK gene, it has been shown to be a good candidate for the periderm regulation since its silencing causes changes in genes expression related to the transposition of DNA, RNA processing and stress. Finally, by RNA-seq we have identified a wide range of new candidate genes for the formation of the cork oak periderm. Among these genes several are related to the formation of the cell wall, cell primary metabolism and suberin accumulation. Other relevant genes are those involved in the regulation of meristem such as auxin transporters and the ethylene metabolism and signaling. The expression patterns of some genes have been studied during the cork growing season.
Hem desenvolupat noves eines moleculars per a la caracterització dels gens FHT i StRIK en el peridermis del tubercle. Els nostres resultats mostren que FHT s’indueix de forma molt específica en teixits suberificats el que el fa un bon marcador del procés de suberificació. En relació al gen StRIK, hem vist que es un bon candidat a la regulació de la peridermis ja que el seu silenciament provoca canvis d’expressió en gens relacionats amb la transposició de l’ADN, el processament de l’RNA i l’estrès. Mitjançant RNA-seq hem identificat nous gens candidats per la formació de la peridermis en l’alzina surera, entre ells destaquen gens relacionats amb la formació de la paret cel·lular, el metabolisme primari i l’acumulació de suberina. També destaquen gens relacionats amb la regulació del meristema com ara els transportadors d’auxines i el metabolisme i senyalització per etilè. L’expressió d’alguns gens s’ha analitzat durant la formació del suro.
APA, Harvard, Vancouver, ISO, and other styles
3

Wunderling, Anna [Verfasser], and Laura [Akademischer Betreuer] Ragni. "Molecular networks of periderm development in Arabidopsis / Anna Wunderling ; Betreuer: Laura Ragni." Tübingen : Universitätsbibliothek Tübingen, 2019. http://d-nb.info/1199929689/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Neubauer, Jonathan David. "Gene Expression Associated with Wound and Native Periderm Maturation in Potato Tubers." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29771.

Full text
Abstract:
Potato (Solanum tuberosum L.) is the world's fourth largest food crop and large financial losses are incurred each year from wound and bruise related injuries. However, little is known about the coordinate induction of genes that may be associated with, or mark major wound-healing and periderm maturation events. Also, one of the key defense mechanisms for potato tubers is the robust barrier provided by the phellem (skin) of the native periderm. Many biological processes are involved in the formation of this stout tissue. However, little is known about induction of genes that may be associated with this process. The objectives of this research were to molecularly assess the processes of wound periderm development and maturation, and native periderm maturation in potato tubers. In this study, these processes were determined in coordination with expression profiles of selected genes. The cell cycle, cell wall protein, and pectin methyl esterase genes were determined from two diverse potato genotypes and two harvests NDTX4271-5R (ND) and Russet Burbank (RB) tubers; 2008 and 2009 harvests. Cell cycle genes encoding epidermal growth factor binding protein (StEBP), cyclin-dependent kinase B (StCDKB), and cyclin-dependent kinase regulatory subunit (StCKS1At) expression profiles were coordinated with related phellogen formation and the induction and cessation of phellem cell formation. Genes encoding the structural cell wall proteins extensin (StExt1) and extensin-like (StExtlk) expression profiles suggested involvement with closing layer formation and subsequent phellem cell layer formations. The coordinate induction and expression profile of StTLRP, a gene encoding a cell wall strengthening "tyrosine- and lysine-rich protein," suggested a role in the formation of the closing layer followed by phellem cell generation and lastly cell wall thickening in nonmeristematic phellogen cells. StPME and StPrePME expression increased during periderm development, implicating involvement in modifications for closing layer and phellem cell formation. Collectively, these results indicate that the genes monitored were involved in and their expression profiles markedly coordinated with periderm formation and the on-set of periderm maturation; results were more influenced by harvest than genotype. Importantly, StTLRP was the only gene examined that may be involved in phellogen cell wall strengthening or thickening after cessation of cell division.
APA, Harvard, Vancouver, ISO, and other styles
5

Serra, i. Figueras Olga. "Functional Genetics of Suberin: The Role of CYP86A33 and StKCS6 in potato tuber periderm." Doctoral thesis, Universitat de Girona, 2008. http://hdl.handle.net/10803/7634.

Full text
Abstract:
La caracterització funcional de dos gens en la peridermis, la ω hidroxilasa d'àcids grassos CYP86A33 -candidata per la funcionalització del carboni ω-terminal dels monòmers alifàtics de la suberina- i la ketoacyl-CoA sintasa StKCS6 -candidata per elongar àcids grassos o derivats llargs de suberina i ceres- es realitza per silenciament per RNA d'interferència en patata.
La deficiència de CYP86A33 comporta una gran reducció dels monòmers principals de la suberina, l'àcid gras ω-hidroxilat i l'α,ω-diàcid C18:1, juntament amb una reducció total de la quantitat de suberina del 60%. Aquesta deficiència altera l'estructura lamel·lar típica de la suberina, així com també la funció barrera de la peridermis.
La deficiència en StKCS6 comporta que els monòmers de la suberina de 28 carbonis o més llargs es redueixin i que els de 26 carbonis o més curts s'incrementin. Aquesta deficiència suggereix que la llargada dels compostos alifàtics pot contribuir a les propietats impermeabilitzants de la peridermis.
The functional characterization of two genes in the periderm, the ω-hydroxylase CYP86A33 -candidate for the functionalization of the ω-terminal carbon of suberin aliphatic compounds- and the putative ketoacyl-CoA synthase StKCS6 -candidate for the elongation of VLCFA and derivatives of suberin and waxes of periderm- is performed by RNA interference-mediated silencing in potato
The CYP86A33 deficiency leads to a great reduction of the main suberin monomers, the C18:1 ω-hydroxyacid and α,ω-diacid, together with an overall decrease of the suberin total amount by 60%. The deficiency in these ω-oxidized fatty acids alters the typical suberin lamellar structure as well as the periderm water barrier function.
StKCS6 deficiency leads to a decrease of suberin and wax compounds with chain-length C28 and higher and an increase of those with chain-length C26 and lower. This deficiency suggests that the aliphatics chain-length can contribute to the sealing properties of periderm.
APA, Harvard, Vancouver, ISO, and other styles
6

Duncan, Kaylia Mekelda. "The structure of the zebrafish periderm gene regulatory network and its relevance to orofacial clefting." Diss., University of Iowa, 2019. https://ir.uiowa.edu/etd/6940.

Full text
Abstract:
Non-syndromic orofacial clefting (nsOFC) is among the most common congenital birth defects occurring up to 1 in 800 live births, with genetic and environmental causes. Genome wide association studies (GWAS) have identified several genetic loci that confer risk for nsOFC. However, more than half the heritable risk for nsOFC remains unknown and is considered ‘missing’. Moreover, continued sequencing of nsOFC patient DNA by whole exome sequencing and whole exome sequencing identify hundreds of single nucleotide polymorphism (SNPs). The identification of causal SNPs, however, continues to be a challenge in the OFC community. This is fueled partly by a lack of understanding of: (i) molecular mechanism and, (i) the gene regulatory network (GRN) governing differentiation of the relevant tissue, the embryonic superficial epithelia, also known as the periderm. Research has demonstrated that aberrant differentiation of the periderm, particularly the oral periderm results in pathological adhesions of surfaces within the developing oral cavity resulting in OFC. Further these adhesions can extend to the limbs which is a hallmarks feature in some forms of syndromic OFC (sOFC). In zebrafish, our model system of choice, knock-out of interferon regulatory factor 6 (irf6) ablated periderm marker expression and subsequently induces early embryonic lethality. The ortholog of IRF6 is a major genetic locus of Van der Woude syndrome (VWS) the most common form of sOFC and variants of IRF6 elevate risk for nsOFC. Therefore, we hypothesize that GRN of zebrafish periderm differentiation under the control of irf6 is a tool that can be used to identify novel OFC loci. Supporting this view, we have recently demonstrated that knock-down of an irf6 dependent gene encoding transcription factor Grainy-head like 3 (Grhl3) results in aberrant zebrafish periderm differentiation and GRHL3 was recently discovered as a novel VWS genetic locus. Hence it is likely that orthologs of genes encoding additional members of the periderm GRN harbor mutations in OFC patients. To identify cis–regulatory and transcriptional components in the periderm GRN, we performed: (i) a screen for periderm enhancers through in vivo green fluorescent protein (GFP) reporter assays, and, (ii) irf6 RNA-seq, followed by irf6 ChIP-seq to identify direct targets. From our screen for cis-regulatory elements we have identified a candidate human ZNF750 enhancer that directs GFP reporter expression in the zebrafish periderm. From our screen for irf6 direct targets we have identified several transcription factors including klf17, tfap2a and grhl3, all of which have variants in the human orthologs found in OFC patients. We further resolve the structure of the periderm differentiation GRN in zebrafish by assessing loss of function profiles for klf17, tfap2a and grhl3. Additionally, among the irf6 direct targets is a gene encoding another transcription factor, Zinc finger protein 750 (Znf750). We provide evidence to show that znf750 is expressed weakly in the zebrafish periderm. Further, we sequenced DNA in 500 nsOFC patient samples and identify a novel missense Ser160Pro ZNF750 variant which phenocopies the early embryonic lethality observed in irf6 mutants. Therefore, investigation of the zebrafish periderm GRN structure has facilitated the identification of OFC-associated risk loci.
APA, Harvard, Vancouver, ISO, and other styles
7

Verdaguer, i. Serrat Roger. "Estudi de la funció del factor de transcripció StNAC103 en el fel·lema." Doctoral thesis, Universitat de Girona, 2015. http://hdl.handle.net/10803/668781.

Full text
Abstract:
The results obtained in this thesis indicate that StNAC103 promoter activity is induced in tissues undergoing suberin synthesis. Moreover StNAC103 transcript accumulation is concomitant to that of CYP86A33 and takes place after that of FHT. Nonetheless, an increase of the suberin and wax accumulation in the silenced periderms for StNAC103 suggests its role as a repressor in suberin and wax accumulation. Altogether these studies support the hypothesis that there exists a very fine regulation of the suberin and wax synthesis in the periderm, in which StNAC103 plays an important role.
Els resultats obtinguts en aquesta tesi indiquen que l’activitat del promotor d’StNAC103 s’indueix en teixits on és activa la síntesi de suberina i l’acumulació del transcrit corresponent es dóna concomitantment a la de l'ω-hidroxilasa d’acids grassos CYP86A33 i s’inicia posteriorment a la de la feruloïl transferasa d’ω-hidroxiacids i alcohols FHT. Tanmateix, l’augment en l’acumulació de suberina i ceres en els peridermes silenciats per StNAC103 suggereix un paper repressor d’aquest factor de transcripció. Tot plegat fa pensar que hi ha d’haver una regulació molt fina de la síntesi de suberina i ceres en el periderma i que StNAC103 hi té un paper destacat.
APA, Harvard, Vancouver, ISO, and other styles
8

Nascimento, Marcela Blagitz Ferraz do. "Anatomia caulinar de Zanthoxylum rhoifolium Lam. (Rutaceae) e Moquiniastrum polymorphum (Less.) G. Sancho (Asteraceae) que ocorrem em Cerrado e Mata Atlântica." Botucatu, 2017. http://hdl.handle.net/11449/148945.

Full text
Abstract:
Orientador: Carmen Regina Marcati
Resumo: Avaliar a estrutura anatômica de plantas que crescem em diferentes ambientes é uma maneira de compreender como as plantas se adaptam às variações destes ambientes. Algumas destas adaptações influenciam no transporte de água e de fotoassimilados, na proteção dos tecidos internos, na força mecânica e na capacidade de armazenamento dos tecidos, que são funções associadas ao caule das plantas. Assim, neste trabalho, avaliamos a estrutura caulinar de duas espécies, Moquiniastrum polymorphum e Zanthoxylum rhoifolium que ocorrem simultaneamente em diferentes tipos vegetacionais: o cerrado sensu stricto, o cerradão, a floresta estacional semidecídua e a floresta ombrófila densa. Os três primeiros tipos vegetacionais têm um período de seca durante o ano, enquanto que na floresta ombrófila densa o regime pluviométrico é relativamente constante ao longo do ano. Os solos de cada local apresentam diferentes propriedades físicas e químicas e no cerrado sensu stricto o fogo é um fator ambiental que pode ocorrer naturalmente. Estes fatores podem influenciar a estrutura anatômica dos tecidos vegetais. Para a descrição anatômica coletamos amostras do caule (a 1,30 m do solo) contendo xilema secundário e casca, pelo método não destrutivo, de cinco indivíduos de cada tipo vegetacional, que foram processadas conforme técnicas usuais em anatomia da madeira. Para verificar as diferenças entre os tipos vegetacionais, nós comparamos as características anatômicas por meio de uma análise de variância. ... (Resumo completo, clicar acesso eletrônico abaixo)
Doutor
APA, Harvard, Vancouver, ISO, and other styles
9

Fernández, Piñán Sandra. "Identificació de gens i processos rellevants pel fel·lema i la suberina usant noves aproximacions." Doctoral thesis, Universitat de Girona, 2018. http://hdl.handle.net/10803/667085.

Full text
Abstract:
The periderm is a complex structure that protects plants’ secondary organs and wounded tissues. This function is given by the phellem, a multilayered tissue formed by cells with suberized cell walls located on the outer part of the periderm. Suberin is a basic polymer for protection thanks to its lipid nature. Exceptionally, the cork oak has a great capacity to produce layers of phellem. Recently, transcriptomics studies, as well as reverse genetic approaches, have contributed to the knowledge of the formation and regulation of the periderm and the synthesis and transport of the suberin components. However, the molecular bases that control these processes are still quite unknown. For this reason, new regulatory and transport candidate genes have been characterized. In addition, a faster and less expensive roots transformation system has been developed. Finally, a global transcriptome analysis of the outer bark of cork oak during its growth has been performed
El periderma és una estructura complexa que protegeix els òrgans secundaris i els teixits cicatricials. Aquesta funció la dóna el fel·lema,teixit pluriestratificat format per cèl·lules amb parets suberificades situat a la part externa del periderma. La suberina és un polímer bàsic per la protecció gràcies a la seva naturalesa lipídica. De forma excepcional l’alzina surera té una gran capacitat per produir capes de fel·lema. En els últims anys, estudis transcriptòmics, així com de genètica inversa, han contribuït al coneixement de la formació i regulació del periderma i la síntesi i transport de la suberina. No obstant, les bases moleculars que controlen aquests processos són encara força desconegudes. Per aquest motiu s'han caracteritzat nous gens candidats reguladors i de transport. A més, s'ha posat a punt un sistema de transformació d'arrels més ràpid i menys costós. Per últim, s'ha realitzat un anàlisi global del transcriptoma de l'excorça externa de l'alzina surera durant el seu creixement
APA, Harvard, Vancouver, ISO, and other styles
10

Cardoso, Maria Sofia Quinha. "Caracterização histológica e histoquímica das células suberosas em diferenciação das peridermes do sobreiro e da batata." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/3987.

Full text
Abstract:
Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia
This work had three main goals: (1) to study the process of the phellogen and first periderm formation in young plants of cork-oak (Quercus suber); (2) to study the process of cork-tissue formation in adult cork-oak trees under cork exploitation, including the suberification process of cork cell walls and, (3) to study the structure of suberized cell walls in the periderm of potatoes, including a wild-type and three mutatans, where genes involved in suberin synthesis were supressed. To this end were used optical microscopy techniques, including bright field, epi-fluorescence and polarized light, together with scanning electron microscopy (SEM). The main results were: · the phellogen is formed in cork-oak before a month’s life of the young plants; · in the cork forming tissue three zones can be seen – the outer one, where cells are still dividing; – a middle one, were cork cell walls are thickening, and the inner one, contiguous to the mature cells, were cells still kept abundant cytoplasm material, although their cell walls already show their definitive thickness and, · the silencing of the genes involved in the ester-linking between the aliphatic and aromatic domains of suberin have the higher effect in the disrupting of suberized cell walls in potato periderm.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Periderm"

1

Hoffknecht, Andreas. Mikropetrographische, organisch-geochemische, mikrothermometrische und mineralogische Untersuchungen zur Bestimmung der organischen Reife von Graptolithen-Periderm. Göttingen: Selbstverlag der Geologischen Institute der Georg-August-Universität Göttingen, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Nowak, Claus. Peridorm: Abenteuerroman. Halle: MDV, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Nowak, Claus. Peridorm: Abenteuerroman. Halle: Mitteldeutscher Verlag, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Nowak, Claus. Peridorm: Abenteuerroman. Halle: Mitteldeutscher Verlag, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Akdogan, Hakan. Nü peride. Istanbul: Can Yayinlari, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wyffels, Filip. De archiefwetgeving van de Franse peride (1788-1814). Bruxelles: Archives et bibliothèques de Belgique, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Nowak, Claus. Peridorm. Halle; Leipzig, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Perideis: (andere Schreibweise: Peridëis). Berlin, Germany: Denkholz Buchmanufaktur, 2016.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

1916-, Peride Celâl, and İleri Selim, eds. Peride Celal'e armağan. Beyoğlu, İstanbul: Oğlak Yayıncılık ve Reklamcılık, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Periderm"

1

Crang, Richard, Sheila Lyons-Sobaski, and Robert Wise. "Periderm." In Plant Anatomy, 553–75. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77315-5_16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Romberger, John A., Zygmunt Hejnowicz, and Jane F. Hill. "Periderm." In Plant Structure: Function and Development, 437–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-01662-6_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Bates, Denis, and Nancy Kirk. "The Fine Structure of Graptolite Periderm." In Biology of Invertebrate and Lower Vertebrate Collagens, 389–96. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7636-1_34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

"Periderm." In Esau's Plant Anatomy, 427–45. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/0470047380.ch15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

"Kapitel 15 Das Periderm." In Esaus Pflanzenanatomie. Berlin, New York: Walter de Gruyter, 2009. http://dx.doi.org/10.1515/9783110211320.391.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

"15 Das Periderm – Isolierung und Fraßschutz." In Mikroskopisch-botanisches Praktikum, edited by Gerhard Wanner. Stuttgart: Georg Thieme Verlag, 2010. http://dx.doi.org/10.1055/b-0034-42372.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

"15 Das Periderm – Isolierung und Fraßschutz." In Mikroskopisch-botanisches Praktikum, edited by Gerhard Wanner. Stuttgart: Enke Verlag, 2017. http://dx.doi.org/10.1055/b-0037-147402.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

"Periderm, rhytidome, and the nature of bark." In An Introduction to Plant Structure and Development, 240–47. Cambridge University Press, 2005. http://dx.doi.org/10.1017/cbo9781139165365.014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

"Peridium." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics, 1466. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_12551.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Periderm"

1

Agunsoye, J., S. Hassan, S. Bello, M. Haris, J. Agboola, and J. Adebisi. "Synthesis of Silicon Nanoparticles from Cassava Periderm by Reduction Method." In MS&T18. MS&T18, 2018. http://dx.doi.org/10.7449/2018mst/2018/mst_2018_701_709.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Agunsoye, J., S. Hassan, S. Bello, M. Haris, J. Agboola, and J. Adebisi. "Synthesis of Silicon Nanoparticles from Cassava Periderm by Reduction Method." In MS&T18. MS&T18, 2018. http://dx.doi.org/10.7449/2018/mst_2018_701_709.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Li, Xinyuan, Huang Ye, and Jian Zhang. "Redesigning Peridigm on SIMT Accelerators for High-performance Peridynamics Simulations." In 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). IEEE, 2021. http://dx.doi.org/10.1109/ipdps49936.2021.00052.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Periderm"

1

Parks, Michael L., David John Littlewood, John Anthony Mitchell, and Stewart Andrew Silling. Peridigm users' guide. V1.0.0. Office of Scientific and Technical Information (OSTI), September 2012. http://dx.doi.org/10.2172/1055619.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Salinger, Andrew Gerhard, John Anthony Mitchell, David John Littlewood, and Michael L. Parks. Peridigm summary report : lessons learned in development with agile components. Office of Scientific and Technical Information (OSTI), September 2011. http://dx.doi.org/10.2172/1029829.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Periderm' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography