An effect of ethylene on the endoplasmic reticulum of expanding cells of etiolated shoots of Pisum sativum L.

Planta ◽  
1975 ◽  
Vol 124 (2) ◽  
pp. 199-205 ◽  
Author(s):  
J. A. Sargent ◽  
Daphne J. Osborne
Keyword(s):  
Endoplasmic Reticulum ◽  
Pisum Sativum ◽  
Pisum Sativum L

Fine structure of the phloem of Pisum sativum. I. The sieve element ontogeny

1965 ◽  
Vol 13 (2) ◽  
pp. 171 ◽  
Author(s):  
MC Wark ◽  
TC Chambers
Keyword(s):  
Endoplasmic Reticulum ◽  
Pisum Sativum ◽  
Nuclear Material ◽  
Sieve Element ◽  
Secondary Phloem ◽  
Sieve Elements ◽  
Pisum Sativum L ◽  
Ontogenetic Study ◽  
Sieve Plates ◽  
Peripheral Cytoplasm

An ontogenetic study of secondary phloem sieve elements of Pisum sativum L., fixed on the intact plant for electron microscopy, indicates that the connecting strands across the sieve plates are continuities of the endoplasmic reticulum. Each connecting strand is surrounded by a callose cylinder. The peripheral cytoplasm of the nucleate "young" sieve elements contains longitudinally oriented tubules of endoplasmic reticulum. As the sieve elements develop, nuclear material is extruded into the cytoplasm by way of a fibrotubular body which is structurally distinct from the slime body. When the cells are fully expanded the slime bodies disperse. This process is followed by breakdown of a number of organelles including the nucleus and tonoplast. This apparently leaves the endoplasmic reticulum free in the cell lumen.

scholarly journals Organization of the endoplasmic reticulum in cells of effective and ineffective pea nodules (Pisum sativum L.)

2019 ◽  
Vol 17 (4) ◽  
pp. 5-14
Author(s):  
Anna V. Tsyganova ◽  
Viktor E. Tsyganov
Keyword(s):  
Endoplasmic Reticulum ◽  
Pisum Sativum ◽  
Structural Changes ◽  
Nodule Development ◽  
Wild Type ◽  
Meristematic Cells ◽  
Pisum Sativum L ◽  
Transmission Electron ◽  
Infected Cells ◽  
Membrane Bound

Background. The endoplasmic reticulum (ER) is the largest membrane-bound organelle, which plays an important role in the functioning of a plant cell and participates in its differentiation. Materials and methods. Using the methods of transmission electron microscopy, the morphological features and dynamics of structural changes in the ER in symbiotic nodules of pea (Pisum sativum L.) wild-type and mutants blocked at different stages of nodule development were studied. Results. ER developed from a network of individual tubules in meristematic cells, to a developed network of cisterns around the nucleus and plasmalemma, and a network of granular and smooth tubules accompanying infection structures in colonized and infected cells and symbiosomes in infected cells. Conclusions. A correlation was found between the level of development of the ER network and the degree of bacteroid differentiation.

The structure of the stem endodermis in etiolated pea seedlings

1987 ◽  
Vol 65 (7) ◽  
pp. 1514-1519 ◽  
Author(s):  
Fred D. Sack
Keyword(s):  
Endoplasmic Reticulum ◽  
Pisum Sativum ◽  
Cell Elongation ◽  
Proximal Region ◽  
Casparian Strip ◽  
Pisum Sativum L ◽  
Pea Seedlings

Differentiation of the endodermis was examined in third internodes of etiolated Pisum sativum L. cv. Alaska seedlings. The endodermis in young internodes contains large, sedimented amyloplasts; in older internodes, a casparian strip differentiates and the endodermis becomes depleted of starch except for the proximal region of the stem, which retains sedimented amyloplasts and remains graviresponsive. Sedimentation occurs in the hook but does not occur consistently until cells reach the base of the hook, where the axis becomes vertical, rapid cell elongation starts, and amyloplast diameter increases substantially. Contact between endoplasmic reticulum and amyloplasts was observed. Endoplasmic reticulum is not distributed polarly with respect to gravity. No symplastic or apoplastic blockages exist in the endodermis at the level of the stem where lateral gradients may be established during tropic curvature.

Mitigation Effects of 24-Epibrassinolide and Thiourea in Field Pea (Pisum sativum L.) under Drought Stress

2018 ◽  
Vol 34 (2) ◽  
pp. 229-235 ◽  
Author(s):  
Prachi Garg ◽  
◽  
A. Hemantaranjan ◽  
Jyostnarani Pradhan ◽  
◽  
...  
Keyword(s):  
Drought Stress ◽  
Pisum Sativum ◽  
Field Pea ◽  
Pisum Sativum L

МЕТОД ЭКСПРЕСС-ОЦЕНКИ АЛЮМОТОЛЕРАНТНОСТИ У ГОРОХА ПОСЕВНОГО (Pisum sativum L.)

2015 ◽  
Vol 50 (3) ◽  
pp. 353-360
Author(s):  
М.А. ВИШНЯКОВА ◽  
◽  
Е.В. СЕМЕНОВА ◽  
И.А. КОСАРЕВА ◽  
Н.Д. КРАВЧУК ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Pisum Sativum L
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