U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Journal Protoplasma Remove constraint Journal: Protoplasma Publication Year 2008 Remove constraint Publication Year: 2008 Subject plasmodesmata Remove constraint Subject: plasmodesmata Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
Start Over

Search

4  Search Results

1 - 4 of 4
Number of results to display per page

Search Results

1. Cytoarchitecture of Utricularia nutritive tissue

Author:
Płachno, Bartosz J.; Świątek, Piotr
Source:
Protoplasma 2008 v.234 no.1-4 pp. 25-32
ISSN:
0033-183X
Subject:
Utricularia; amyloplasts; carnivorous plants; cell walls; direct contact; electron microscopy; embryo sac; endoplasmic reticulum; females; flowers; gametophytes; histochemistry; light microscopy; lipids; meristems; microtubules; nutrition; phylogeny; plasmodesmata; researchers; starch granules; vacuoles
Abstract:
... Beginning with light microscopy studies in the late 19th century, the placental “nutritive tissue” in carnivorous plants of Utricularia spp. has been well described by several authors. Based on observations of direct contact between the embryo sac and the “nutritive tissue” and the lack of vascularization of the ovule, it has been suggested that this nutritive tissue plays a key role in the nutrit ...
DOI:
10.1007/s00709-008-0020-9
PubMed:
18802663

2. A comparative ultrastructural study of pit membranes with plasmodesmata associated thickenings in four angiosperm species

Author:
Rabaey, David; Lens, Frederic; Huysmans, Suzy; Smets, Erik; Jansen, Steven
Source:
Protoplasma 2008 v.233 no.3-4 pp. 255-262
ISSN:
0033-183X
Subject:
Ligustrum vulgare; Malus; Pittosporum tenuifolium; Vaccinium myrtillus; autolysis; developmental stages; plasmodesmata; transmission electron microscopy; xylem vessels
Abstract:
... Recent micromorphological observations of angiosperm pit membranes have extended the number and range of taxa with pseudo-tori in tracheary elements. This study investigates at ultrastructural level (TEM) the development of pseudo-tori in the unrelated Malus yunnanensis, Ligustrum vulgare, Pittosporum tenuifolium, and Vaccinium myrtillus in order to determine whether these plasmodesmata associated ...
DOI:
10.1007/s00709-008-0019-2
PubMed:
18769866

3. Plasmodesmata transport of GFP alone or fused to potato virus X TGBp1 is diffusion driven

Author:
Schönknecht, G.; Brown, J. E.; Verchot-Lubicz, J.
Source:
Protoplasma 2008 v.232 no.3-4 pp. 143-152
ISSN:
0033-183X
Subject:
Potato virus X; activation energy; equations; fluorescence; genes; leaf area; leaves; plasmodesmata; probability; protein transport; quantitative analysis; surface area; temperature
Abstract:
... Plasmodesmata (Pd) provide a pathway for exchanging various macromolecules between neighboring plant cells. Researchers routinely characterize the mobility of the green-fluorescent protein (GFP) and GFP fusions through Pd by calculating the proportion of sites in bombarded leaves which show fluorescence in multiple cell clusters (% movement). Here, the Arrhenius equation was used to describe the t ...
DOI:
10.1007/s00709-008-0293-z

4. Diffusion of anionic and neutral GFP derivatives through plasmodesmata in epidermal cells of Nicotiana benthamiana

Author:
Dashevskaya, Svetlana; Kopito, Ronen Benjamine; Friedman, Ran; Elbaum, Michael; Epel, Bernard L.
Source:
Protoplasma 2008 v.234 no.1-4 pp. 13-23
ISSN:
0033-183X
Subject:
Nicotiana benthamiana; RNA; electrochemistry; green fluorescent protein; metabolites; models; plasmodesmata
Abstract:
... Plasmodesmata (Pd) are trans-wall membrane channels that permit cell-to-cell transport of metabolites and other small molecules, proteins, RNAs, and signaling molecules. The transport of cytoplasmic soluble macromolecules is a function of the electrochemical gradient between adjacent cells, the number of Pd per interface between adjacent cells, Stokes radius (RS), area of the cytoplasmic annulus, ...
DOI:
10.1007/s00709-008-0014-7