scholarly journals Protein Compositions of Mesophyll and Paraveinal Mesophyll of Soybean Leaves at Various Developmental Stages

1991 ◽  
Vol 97 (4) ◽  
pp. 1306-1316 ◽  
Author(s):  
Stephen F. Klauer ◽  
Vincent R. Franceschi ◽  
Maurice S. B. Ku
Keyword(s):  
Developmental Stages ◽  
Paraveinal Mesophyll ◽  
Soybean Leaves

The functional status of paraveinal mesophyll vacuoles changes in response to altered metabolic conditions in soybean leaves

2005 ◽  
Vol 32 (4) ◽  
pp. 335 ◽  
Author(s):  
Kimberly A. Murphy ◽  
Rachel A. Kuhle ◽  
Andreas M. Fischer ◽  
Aldwin M. Anterola ◽  
Howard D. Grimes
Keyword(s):  
Functional Status ◽  
Storage Proteins ◽  
Vegetative Storage Proteins ◽  
Paraveinal Mesophyll ◽  
Lytic Function ◽  
Metabolic Conditions ◽  
Glycine Max L ◽  
Soybean Leaves ◽  
And Storage ◽  
Lytic Compartment

Antibodies raised against tonoplast intrinsic proteins (TIPs) were used to probe the functional status of the soybean [Glycine max (L.) Merr.] paraveinal mesophyll (PVM) vacuole during changes in nitrogen metabolism within the leaf. Young plants grown under standard conditions had PVM vacuoles characterised by the presence of γ-TIP, which is indicative of a lytic function. When plants were then subjected to shoot tip removal for a period of 15 d, forcing a sink-limited physiological condition, the γ-TIP marker diminished while the δ-TIP marker became present in the PVM vacuole, indicating the conversion of the PVM vacuole to a storage function. When the shoot tips were allowed to regrow, the γ-TIP marker again became dominant demonstrating the reversion of these PVM vacuoles back to a lytic compartment. The changes in TIP markers correlated with the accumulation of vegetative storage proteins and vegetative lipoxygenases, proteins implicated in nitrogen storage and assimilate partitioning. This research suggests that the PVM vacuole is able to undergo dynamic conversion between lytic and storage functions and further implicates this cell layer in assimilate storage and mobilisation in soybeans.

Observations on the Development of the Paraveinal Mesophyll of Soybean Leaves

1973 ◽  
Vol 134 (3) ◽  
pp. 232-235 ◽  
Author(s):  
Geoffrey D. Weston ◽  
David D. Cass
Keyword(s):  
Paraveinal Mesophyll ◽  
Soybean Leaves

Allantoinase activity and ureide content of mesophyll and paraveinal mesophyll of soybean leaves

Plant Science ◽  
1987 ◽  
Vol 50 (3) ◽  
pp. 179-187 ◽  
Author(s):  
Stephen A. Costigan ◽  
Vincent R. Franceschi ◽  
Maurice S.B. Ku
Keyword(s):  
Paraveinal Mesophyll ◽  
Soybean Leaves

The paraveinal mesophyll of soybean leaves in relation to assimilate transfer and compartmentation

Planta ◽  
1983 ◽  
Vol 157 (5) ◽  
pp. 411-421 ◽  
Author(s):  
Vincent R. Franceschi ◽  
Robert T. Giaquinta
Keyword(s):  
Paraveinal Mesophyll ◽  
Soybean Leaves

The paraveinal mesophyll of soybean leaves in relation to assimilate transfer and compartmentation

Planta ◽  
1983 ◽  
Vol 157 (5) ◽  
pp. 422-431 ◽  
Author(s):  
Vincent R. Franceschi ◽  
Robert T. Giaquinta
Keyword(s):  
Paraveinal Mesophyll ◽  
Soybean Leaves

scholarly journals Paraveinal Mesophyll of Soybean Leaves in Relation to Assimilate Transfer and Compartmentation

1983 ◽  
Vol 72 (2) ◽  
pp. 586-589 ◽  
Author(s):  
Vincent R. Franceschi ◽  
Vernon A. Wittenbach ◽  
Robert T. Giaquinta
Keyword(s):  
Paraveinal Mesophyll ◽  
Soybean Leaves

The occurrence of an extended bundle sheath system (paraveinal mesophyll) in the legumes

1988 ◽  
Vol 66 (1) ◽  
pp. 94-100 ◽  
Author(s):  
K. G. Kevekordes ◽  
M. E. McCully ◽  
M. J. Canny
Keyword(s):  
Bundle Sheath ◽  
Mesophyll Cells ◽  
Similar Shape ◽  
Paraveinal Mesophyll ◽  
Bundle Sheath Cells ◽  
Soybean Leaves ◽  
Shape And Size ◽  
Leaf Clearing ◽  
Sheath Cells

The tissue previously described as paraveinal mesophyll in soybean leaves is shown to have the characters of bundle sheath rather than mesophyll cells and is renamed "extended bundle sheath" (EBS) tissue. Its presence was surveyed by leaf clearing in 66 species of legumes of all three subfamilies. A complete extended bundle sheath system similar to that previously described in soybean was identified in 21 of the species. This system is a paradermally oriented tissue, one cell deep, between the spongy and palisade mesophylls, consisting of extended bundle sheath cells, which join each other across the interveinal space either directly or via bridging cells of somewhat similar shape and size. A newly recognized, attenuated extended bundle sheath system, in which bundle sheath cells extend but do not form a continuum except in very narrow interveinal spaces, is described; it was found in 32 species. Extended bundle sheath tissue was absent from 13 of the species. The presence or form of extended bundle sheath tissue does not follow traditional taxonomic divisions. Extended bundle sheath systems were also found in 3 of 5 nonlegume species.

Isolation of mesophyll and paraveinal mesophyll protoplasts from soybean leaves

1984 ◽  
Vol 36 (3) ◽  
pp. 181-186 ◽  
Author(s):  
Vincent R. Franceschi ◽  
Maurice S.B. Ku ◽  
Vernon A. Wittenbach
Keyword(s):  
Mesophyll Protoplasts ◽  
Paraveinal Mesophyll ◽  
Soybean Leaves

Correlated Studies of Cellular Interactions Using TEM, Freeze Etching, and SEM

1974 ◽  
Vol 32 ◽  
pp. 320-321
Author(s):  
J. P. Revel
Keyword(s):  
Developmental Stages ◽  
Three Dimensional ◽  
Cell Movement ◽  
Cellular Interactions ◽  
Serial Sections ◽  
Cell Sheets ◽  
Freeze Etching ◽  
Early Developmental

Movement of individual cells or of cell sheets and complex patterns of folding play a prominent role in the early developmental stages of the embryo. Our understanding of these processes is based on three- dimensional reconstructions laboriously prepared from serial sections, and from autoradiographic and other studies. Many concepts have also evolved from extrapolation of investigations of cell movement carried out in vitro. The scanning electron microscope now allows us to examine some of these events in situ. It is possible to prepare dissections of embryos and even of tissues of adult animals which reveal existing relationships between various structures more readily than used to be possible vithout an SEM.

Electron investigations of rhabdovirus-like particles in mexican bean beetles and crickets

1978 ◽  
Vol 36 (2) ◽  
pp. 378-379
Author(s):  
J. R. Adams ◽  
G. J Tompkins ◽  
A. M. Heimpel ◽  
E. Dougherty
Keyword(s):  
Biological Control ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Developmental Stages ◽  
Management Program ◽  
Acheta Domesticus ◽  
Epilachna Varivestis ◽  
House Cricket ◽  
Similar Morphology ◽  
Bean Beetle

As part of a continual search for potential pathogens of insects for use in biological control or on an integrated pest management program, two bacilliform virus-like particles (VLP) of similar morphology have been found in the Mexican bean beetle Epilachna varivestis Mulsant and the house cricket, Acheta domesticus (L. ).Tissues of diseased larvae and adults of E. varivestis and all developmental stages of A. domesticus were fixed according to procedures previously described. While the bean beetles displayed no external symptoms, the diseased crickets displayed a twitching and shaking of the metathoracic legs and a lowered rate of activity.Examinations of larvae and adult Mexican bean beetles collected in the field in 1976 and 1977 in Maryland and field collected specimens brought into the lab in the fall and reared through several generations revealed that specimens from each collection contained vesicles in the cytoplasm of the midgut filled with hundreds of these VLP's which were enveloped and measured approximately 16-25 nm x 55-110 nm, the shorter VLP's generally having the greater width (Fig. 1).

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