Symplasmic Transport In Vascular Plants

Author: Katarzyna Sokołowska
Publisher: Springer Science & Business Media
ISBN: 1461477654
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This book characterize the efficiency of symplasmic transport, mechanisms of molecule passage via plasmodesmata, and the external and internal factors that regulate plasmodesmatal conductivity.

Vascular Transport In Plants

Author: N. Michelle Holbrook
Publisher: Elsevier
ISBN: 9780080454238
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Interaction of Phloem and Xylem During Phloem Loading: Functional
Symplasmic Roles for Thin- and Thick-Walled Sieve Tubes in Monocotyledons
C. E. J. Botha The phloem in monocotyledons differs from that found in leaves of
dicotyledons and eudicotyledons in that two distinct sieve tube types are
recognized in intermediate and small vascular bundles. These are the early
metaphloem sieve elements, which are characterized by their association with
companion cells, and a ...

Botanical Journal Of Scotland

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Table 1 suggests that the spacing of leaf vascular bundles is generally at least as
close as in otherwise comparable C, plants. The relation between the spacing of
vascular bundles and the rate of photosynthesis in C4 plants can be analysed in
the same way as for Ci plants above. In at least ... plants. The discussion thus far
of sucrose transport from photosynthetic cells to phloem conduits involves the
implicit assumption that the flux, whether apoplasmic or symplasmic, is by

The Apoplast Of Higher Plants Compartment Of Storage Transport And Reactions

Author: Burkhard Sattelmacher
Publisher: Springer Science & Business Media
ISBN: 1402058438
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The significance of the apoplast for the mineral nutrition of higher plants Burkhard
Sattelmacher, Walter J. Horst ... The isolation procedure developed for the patch
clamp experiments was employed to separate c-DNA from vascular strands from
that of mesophyll cells and of epidermis cells. Physiological ... Nutrient transport
from the soil to the symplasm of leaves occurs through a long apoplastic
compartment: the xylem; these vascular strands extend from the roots to the

Transport In Plants

Author: M. J. P. Canny
ISBN: 9783540074533
Size: 68.37 MB
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However, there can be no doubt that the symplasm plays a vital role in short-
distance transport. This is also evident from the autoradiograms of transport
through bundle bridges where it can be seen that after passage throughout the
vascular system considerable amounts of chloride move into the parenchyma (
Fig. 2.8). c) Drosera. Another system used by Arisz is the tentacle of the
carnivorous plant Drosera capensis (see Helder, 1967b). The tentacle stalk
consists of a xylem vessel ...

Australian Journal Of Plant Physiology

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In contrast, accumulation of osmotically active assimilates to high concentrations
in sink cells could attenuate symplasmic transport by bulk flow by abolishing any
differences in P between sieve elements and sink cells. A solution to this impasse
is turgor regulation of sink cells independent of their intracellular sucrose
concentration. This circumstance can be achieved if sink and vascular tissue
apoplasms are separated by waterimpermeant encrustrations in the walls of cells

Plant Cuticles

Author: G. Kerstiens
Publisher: Garland Science
Size: 24.63 MB
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Symplasmic transport of organic C (as well as of N, P and Fe) from sterile regions
to the sporangia is common in extant organisms, where inter alia the lower
photosynthetic capacity of sporangia reduces oxygen production there with a
corresponding smaller risk of free radical damage to the germ-line (Raven et al.,
1994) ... This poses a problem for nutrient solute supply to early vascular plants
in view of the low diffusion coefficient for many solutes (especially phosphate) in
many soils.


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Cumbie, B.G. \969b. Developmental changes in the vascular cambium of
Polygonum lapathifolium. Am. J. Bot. 56: 139-146. doi: 10.2307/2440699.
Cumbie, B.G. 1984. Origin and development of the vascular cambium in
Aeschynomene virginica. Bull. Torrey Bot. Club, 111: 42-50. doi: 1 0.2307/
2996209. Dickinson, W.C. 2000. Integrative plant anatomy. Academic Press,
Harcourt Place, London, UK. Erickson, R.O. 1986. Symplastic growth and
symplasmic transport. Plant Physiol.

Transport And Transfer Processes In Plants

Author: I. F. Wardlaw
Size: 38.39 MB
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I. F. Wardlaw, J. B. Passioura. CHAPTER 9 Symplasmic Transport and Ion
Release to the Xylem A. Lauchli Fachbereich Biologie (10), Der Technischen
Hochschule, D-6100 Darmstadt, Germany PATHWAYS OF ION TRANSPORT IN
ROOTS The basic anatomy of primary roots is well understood. Epidermis and
cortex are separated from the stele containing the vascular tissues, by the
endodermis. A short distance behind the root apex, the endodermal cells are in
their primary state of ...

Russian Journal Of Plant Physiology

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Even before the endoplasmic tubule was shown to constitute the transport
channel through the plasmodesm, and two meanings of the term "symplasm"
were defined, the domain organization of symplasm was established in many
laboratories with fluorescent probes [62-65]. This evidence is apparently
supplemented by data ... illustrations of apoplasm domain organization.
Apoplasmic separation of phloem and xylem in axial organs is a common trait of
most vascular plants (see Fig.