Localization of cadmium in granules within differentiating and mature root cells

1987 ◽  
Vol 65 (4) ◽  
pp. 643-646 ◽  
Author(s):  
W. E. Rauser ◽  
C. A. Ackerley
Keyword(s):  
Zea Mays ◽  
Cell Walls ◽  
Zea Mays L ◽  
Epidermal Cells ◽  
Root Cells ◽  
Dense Granules ◽  
Parenchyma Cells ◽  
Undifferentiated Cells ◽  
Mature Root

Cadmium was found in electron-dense granules inside root parenchyma cells of Agrostis gigantea Roth and of Zea mays L. (maize) exposed to 3 mmol m−3 CdSO4. Cadmium-bearing granules were found in the cytoplasm and vacuoles of differentiating and mature cells and in nuclei of undifferentiated cells. Cadmium-bearing granules were absent from cell walls and epidermal cells. In addition to Cd, the electron-dense granules contained variable proportions of Ca, Fe, Ni, P, Pb, and Zn.

Electron-probe microanalysis of silicon in the adventitious roots and terminal internode of the culm of Zea mays

1982 ◽  
Vol 60 (10) ◽  
pp. 2024-2031 ◽  
Author(s):  
Daphne M. Bennett ◽  
A. G. Sangster
Keyword(s):  
Zea Mays ◽  
Electron Probe Microanalysis ◽  
Cell Walls ◽  
Electron Probe ◽  
Adventitious Roots ◽  
Zea Mays L ◽  
Outer Region ◽  
Background Level ◽  
Ground Tissue ◽  
Epidermal Cell Wall

The adventitious roots and terminal internode of the culm of mature, field-grown specimens of five cultivars of Zea mays L. were investigated with relation to silicon, using electron-probe microanalysis. No silicon was detected above the background level within the endodermis or any other tissues within the adventitious roots. In contrast, however, in the terminal internode silicon was present in the outermost layers of cells, the highest levels being detected in the outer epidermal wall. It was also present in the internal epidermal cell wall, as well as in the walls of underlying tissues of the outer region of the culm, in the sclerenchyma, and at a low level in the parenchyma forming the ground tissue. Thus, the culms displayed a decreasing gradient of silicon content, probably in the form of amorphous silica gel, in cell walls, proceeding from the outermost layer, the epidermis, to the centrally located ground parenchyma, a result generally consistent for all five cultivars. The results are discussed in relation to the anatomy of these tissues and their silicification.

scholarly journals Effects of NaCl and CaCl2 on Water Transport across Root Cells of Maize (Zea mays L.) Seedlings

1992 ◽  
Vol 99 (3) ◽  
pp. 886-894 ◽  
Author(s):  
Hassan Azaizeh ◽  
Benito Gunse ◽  
Ernst Steudle
Keyword(s):  
Zea Mays ◽  
Water Transport ◽  
Zea Mays L ◽  
Root Cells

Differential response of antioxidative systems of maize (Zea mays L.) roots cell walls to osmotic and heavy metal stress

Plant Biology ◽  
2013 ◽  
Vol 16 (1) ◽  
pp. 88-96 ◽  
Author(s):  
M. Vuletić ◽  
V. Hadži-Tašković Šukalović ◽  
K. Marković ◽  
N. Kravić ◽  
Ž. Vučinić ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Zea Mays ◽  
Cell Walls ◽  
Zea Mays L ◽  
Heavy Metal Stress ◽  
Differential Response ◽  
Metal Stress ◽  
Antioxidative Systems

COMPARISON OF MORPHOLOGY OF LEAVES FROM NORMAL, CYTOPLASMIC MALE–STERILE AND RESTORED VERSIONS OF ZEA MAYS

1975 ◽  
Vol 17 (2) ◽  
pp. 167-171
Author(s):  
Patricia Sarvella ◽  
C. O. Grogan ◽  
D. L. Myhre
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Epidermal Cells ◽  
Leaf Thickness ◽  
Normal Male ◽  
Male Sterile ◽  
Morphological Variations ◽  
Cytoplasmic Male Sterile

Leaf thickness, number of trichomes, number and size of stomatal and epidermal cells were compared in normal, male-sterile, and restored versions of Zea mays L. Differences in leaf thickness were obtained between lines, but not between versions (except for one line). Differences in trichomes between versions were found in two of the five lines. Results from the length and width of stomatal and epidermal cells in the hybrid F44 × F6 were like those of the trichomes. Therefore, the large morphological variations between the internodes of normal, male-sterile, and restored versions of corn which were previously observed do not extend to the leaves.

Inheritance of nuclear DNA content in leaf epidermal cells of Zea mays L.

1997 ◽  
Vol 94 (6-7) ◽  
pp. 782-787 ◽  
Author(s):  
A Cavallini ◽  
L. Natali ◽  
G. Cionini ◽  
C. Balconi ◽  
F. D’Amato
Keyword(s):  
Zea Mays ◽  
Dna Content ◽  
Nuclear Dna ◽  
Zea Mays L ◽  
Nuclear Dna Content ◽  
Epidermal Cells
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