• In some species, including Arabidopsis thaliana , large quantities of polysaccharide mucilage (pectin) and secondary cell wall are produced by seed coat epidermal cells at specific times during differentiation. (ubc.ca)
  • This result indicates function differentiation of PSAPLIPs in Arabidopsis. (umd.edu)
  • We isolated TSO1 using a map-based approach, andshow that it is a member of a family of at least three genes in Arabidopsis.Consistent with the mutant phenotype, TSO1 transcript was most abundant inflowers, where it accumulated to the highest levels in developing ovules andmicrospores. (embl.de)
  • The process in which the male gamete fuses with the female gamete that is present in ovule to form a new cell called diploid zygote is called fertilization that occurs within the embryo sac or female gametophyte. (saralstudy.com)
  • Plant embryogenesis is the process that produces a plant embryo from a fertilised ovule by asymmetric cell division and the differentiation of undifferentiated cells into tissues and organs. (absoluteastronomy.com)
  • When the fruit of the early maturing cultivar, 'Springcrest', ripened the embryo had not developed to fill the ovule but it was morphologically complete and capable of normal germination under laboratory conditions. (ifvcns.rs)
  • A concise morpho-anatomical study has been carried out on the floral biology of these three morphovariants emphasizing biometrics of various floral parts, the architecture of corolla tube and corolline corona, adnation of anther stigmatic head complex and ovule to embryo formation, using the hand as well as microtome sections, to analyze the similarities and differences among these specimens. (updatepublishing.com)
  • 1998). Overexpression of network marketing leads to enlarged SAMs in somatic embryos and an accelerated differentiation of early embryos from proembryonic public (PEMs), while down-regulation of precludes embryo differentiation (Belmonte et al. (woofahs.com)
  • This paper deals with the differentiation of the plastids during early development of the suspensor and the embryo proper. (docksci.com)
  • AtPSAPLIP2 was expressed in inflorescence too, but mainly in young anthers, petals, ovules and developing seeds. (umd.edu)
  • These mature pollen grains contain the male gametophytes, which are responsible for fertilizing the female reproductive structures (usually the ovule) of the same or another flower, leading to the formation of seeds. (biologysir.com)
  • The respective csp41b-2prin2.2 homo/heterozygote double mutants produced abnormal white colored ovules and shrunken seeds. (frontiersin.org)
  • Appendiculate and smooth walled hairs in corolla tube, germination of pollen grains in a lateral stigmatic notch, appression of anther lobes on 10-lobed incompletely fused stigma, triaperturate pollen grains, ovule developmental stages, entry of pollen tube into ovule, attachment of funicle on placenta etc are some of the enchanting valuable scientific observations under light microscopy. (updatepublishing.com)
  • 16. Doubled haploid plants can be obtained through anther and ovule culture 17. (pdfcoffee.com)
  • We report here on a molecular study of the process of sexual differentiation in the immature inflorescence of oil palm (Elaeis guineensis). (bvsalud.org)
  • hormone quantification to assess the role of cytokinins and auxins in inflorescence differentiation. (bvsalud.org)
  • The seed coat is a specialized tissue derived from ovule integuments. (ubc.ca)
  • Development of a seed coat from two ovule integuments starts right after fertilization. (unizg.hr)
  • Changes occuring during seed coat development are based on differentiation and, to a small degree, on cell elongation. (unizg.hr)
  • and the seed coat from the integuments of the ovule. (absoluteastronomy.com)
  • This area of plant developmental biology is still challenging, since differentiation control pathways and some structural gene functions still have to be elucidated. (unizg.hr)
  • Corporations such as Monsanto have backed away from the deployment of terminators for the time being while there has been an explosion in the development of novel use restriction technologies based on startling new discoveries in plant molecular genetics that led to the identification of homeotic genes that govern the pathways leading to cell differentiation. (i-sis.org.uk)
  • Lintilhac was able to show that cell wall patterning in the immature cotton ovule coincide with the principal stress trajectories generated by growth forces radiating through the embryonic tissues, indicating that cell division itself is directly responsive to mechanical stress fields propagating through meristematic plant tissues. (wikipedia.org)
  • The expressionlevels of ROS1 genes were higher during the formation of cotton ovule. (zbook.org)
  • Mechanisms underlying cell differentiation. (ubc.ca)
  • Following compatible pollination, the dry pollen grain hydrates on the stigma papilla and ultimately germinates, producing a tube that penetrates the wall of the stigmatic cell and grows down to convey the male gametes towards the ovules for fertilization [ 1 , 2 ]. (biomedcentral.com)
  • A novel testis-specific metallothionein-like protein, tesmin, is an early marker of male germ cell differentiation. (embl.de)
  • In addition, they are indicated in the margins of compound leaves, where they presumably prevent cell differentiation (Hay and Tsiantis 2010). (woofahs.com)
  • UNIT-1 Laboratory requirements for tissue culture-culture media and their constituents-cell culture types and applications of cell culture-cell and organ differentiation-somoclonal variation tissue culture technology in India-protoplast cultureregeneration. (pdfcoffee.com)
  • 2013). It involves genesilencing, transposon suppression, genomic imprinting,X chromosome inactivation, cell differentiation, embryodevelopment and other growth and development processes (Fu et al. (zbook.org)
  • Such cells develop into proembryos with polarity following a pattern that tends to mimic the general pattern associated with the development of embryos in the ovule. (exama2z.in)
  • Here, we assessed flower bud differentiation, microsporogenesis, and male-female gametophyte development in this species. (ashs.org)
  • Most recently, Lintilhac has proposed the theoretical argument that the initiation of reproductive differentiation in plants can similarly be traced to biomechanical relationships in the early stages of sporangial growth, linking reproductive development in all the land plants to the evolution of the sporangium as a biomechanical device. (wikipedia.org)
  • In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. (absoluteastronomy.com)
  • The haploid pollen and ovule produced by a flower are thought to contain the remains of the gametophyte generation which was typical of the ancestors of the angiosperms (up to and including ferns). (tripod.com)
  • Each haploid microspore then undergoes further development, including mitotic divisions and differentiation, to ultimately form a mature pollen grain. (biologysir.com)
  • I. Prelinary Observations on the Development of the Ovule in Cotton. (wikipedia.org)
  • This, and the worldwide distribution of the family, and the disjunctions in ranges, definitely point to relict survival and ancient origin, onwards of which period the three tribes have undergone a separate, independent development on the continents, mainly leading to differentiation in Indo-Australia and in the New World, with the greatest abundance in the latter. (cybertaxonomy.org)
  • Abstract Wood is produced by accumulation of secondary xylem via proliferation and differentiation of the cambium cells in. (cn1699.cn)
  • At this stage, cells continue to divide and specialize in their functions, a process called differentiation. (bestregularseeds.com)
  • ABSTRACT Ovule initiation is a key step that strongly influences ovule number and seed yield. (cn1699.cn)
  • Ovule contains egg or female gametes which is the part of the ovary. (saralstudy.com)
  • Therefore, the study of embryogeny in Tropaeolum may be well suited to elucidate early differentiation processes. (docksci.com)
  • Qin Y, Yadegari R and Palanivelu R (2015) ACTIN-RELATED PROTEIN 6 regulates DISRUPTED MEIOTIC cDNA 1 gene expression in Arabidposis thaliana ovules. (arizona.edu)
  • The flowers were hermaphroditic and exhibited a short flower bud differentiation time. (ashs.org)
  • This early plastidal differentiation in discussed with respect to its control and functional significance. (docksci.com)
  • In this study, we found that RAV1 -overexpressing transgenic plants showed abnormally developed ovules, resulting in reduced seed size, weight, and number in a silique. (molcells.org)
  • 2002). However, Carboplatin small molecule kinase inhibitor ectopically indicated induces a conversion of ovules to carpels, recommending a function linked to carpel advancement (Pautot et al. (woofahs.com)