Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Plasmodesmata"”.
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A multiscale study of plasmodesmata: from channel ultrastructure to plant architecture
Plasmodesmata are nanoscale, membrane lined pores that span the cell wall of neighbouring plant cells. The presence of these structures enables cell-cell movement of substances important for plant growth and development. This thesis describes the nature of plasmodesmata and explores their …
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COMPARATIVE ULTRASTRUCTURE OF APICAL CELLS AND DERIVATIVES IN BRYOPHYTES, WITH SPECIAL REFERENCE TO PLASMODESMATA
… on the primary cell wall constituents and plasmodesmata (PD) density in three mosses and four liverwort apical cells (AC) and immediate derivatives. The three mosses have tetrahedral apical cells and the liverworts possess tetrahedral, hemidiscoid and lenticular AC geometries. The primary …
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Towards understanding of plasmodesmal association and regulation using Plasmodesmata-Located Protein 5 as a model
Plasmodesmata (PDs) mediate intercellular communication by facilitating cell- to-cell exchange of soluble molecules in plants. Despite a growing number of proteins are identified to associate with PD and affect PD permeability, not much is known about how they are targeted to PD and regulate PD …
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Developmental and Expression Evolution in C3 and C4 Atriplex and their Hybrids
… Genes of interest including regulators of plasmodesmata and chloroplast function did not have distinct patterns of regulatory divergence. Inheritance pattern analysis showed that misexpression was common in F1 hybrids and was supported by phenotypic evidence. I next performed comparative …
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Cross-Species Translocation of mRNA from Host Plants into the Parasitic Plant Dodder
… readily into the parasite, and shared plasmodesmata have been documented between host cortical cells and dodder searching hyphae. Dodder is known to transmit viruses from one host to another, which is consistent with viral ability to traverse plasmodesmata (PD) with the aid of movement …
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The study of wheat striate mosaic virus (WSMV) in wheat callus tissue culture
… on the outside of the clump. There were numerous plasmodesmata between the young callus cells, identifiable by dense cytoplasm and few or no vacuoles. As the cells aged, vacuole size increased, the cytoplasm became sparse and plasmodesmata were not readily seen.RNA and protein synthesis were …
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On the role of sugar compartmentation and stachyose synthesis in symplastic phloem loading
… sind Mesophyllzellen und Phloem durch zahlreiche Plasmodesmata miteinander verbunden, welche einen symplastischen Übertritt der Assimilate erlauben. Diese morphologische Struktur ist korreliert mit dem Transport von Stachyose und Raffinose neben dem von Saccharose. Im Gegensatz dazu fehlen bei …
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DEFINING THE FUNCTION OF RICE FLORIGENIC PROTEINS DURING THE REPRODUCTIVE TRANSITION AND INFLORESCENCE DEVELOPMENT
… proteins Hd3a and RFT1 and localizes also near plasmodesmata, co-localizing with a protein implicated in cell-to-cell trafficking. These findings increase our understanding of FT-L1’s complex role in inflorescence development and flower fertility.
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Zur Bedeutung von Saccharose-Transportern in Pflanzen mit offener Phloemanatomie
… bezeichnet. Der zweite Weg soll durch Plasmodesmata erfolgen und wird als symplastische Phloembeladung bezeichnet. Während die Theorie der apoplastischen Phloembeladung allgemein akzeptiert ist, ist die symplastische Phloembeladung bisher kaum untersucht. Daher wurden zwei Pflanzenarten …
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Host-parasite interactions of barley yellow dwarf virus and oats: Physiological and immunological studies
… appears to be restricted to passage through plasmodesmata in sieve cells that lack an endoplasmic reticulum (ER) lining. With a series of flotation gradients and antibody competition experiments, purified BYDV was shown to associate with isolated ER of oat roots in a specific manner. The …
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Ultrastructural cytology of peanut infected with peanut stripe virus
… inclusions attached to the cell wall near plasmodesmata. The cytoplasm of infected cells were highly vesiculated. Virus particles amassed in crystalline arrays were observed in blotch infected cells. Virus particles were observed along the arms of pinwheel inclusions. Scroll inclusions …
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Soybean mosaic virus: strains, ultrastructure and movement
… to the plasmalemma and were associated with plasmodesmata and plasmalemmasomes. Endoplasmic reticulum was associated with the base of those pinwheels found in the cytoplasm. The early stage of SMV pinwheel formation appeared to be similar to that reported for other potyviruses. The …