The Dynamics of Seedling and Cotyledon Cell Development in Arabidopsis thaliana During Reserve Mobilization

1996 ◽  
Vol 157 (3) ◽  
pp. 280-295 ◽  
Author(s):  
S. Gary Mansfield ◽  
L. Gregory Briarty
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Development ◽  
Reserve Mobilization ◽  
Cotyledon Cell

Cotyledon cell development in Arabidopsis thaliana during reserve deposition

1992 ◽  
Vol 70 (1) ◽  
pp. 151-164 ◽  
Author(s):  
S. G. Mansfield ◽  
L. G. Briarty
Keyword(s):  
Arabidopsis Thaliana ◽  
Endoplasmic Reticulum ◽  
Rough Endoplasmic Reticulum ◽  
Volume Fraction ◽  
Biological Membrane ◽  
Lipid Body ◽  
Cell Development ◽  
Volume Fractions ◽  
Short Period ◽  
Cotyledon Cell

Cotyledon cell development in Arabidopsis thaliana L. during reserve deposition has been analyzed qualitatively and quantitatively. Development has been related to the previously defined time scale for Arabidopsis, hours after flowering. Between 144 and 216 h after flowering the major cell changes in the cotyledon are an increase in the cell volume, a decrease in the volume fraction of cytoplasm and plastids, and an increase in lipid and vacuole volume fractions. The endoplasmic reticulum and dictyosome volume fractions are high during early reserve formation (144 – 168 h after flowering) but decrease significantly thereafter. Evidence as to the origin of the storage lipid is inconclusive, although a dual involvement of plastids and rough endoplasmic reticulum is a likely theory. The 3-nm lipid body membrane, which allows the bodies to retain their individuality during accumulation, is probably a half-unit biological membrane, derived from closely associated rough endoplasmic reticulum cisternae. Much of the evidence obtained in this study indicates that both the endoplasmic reticulum and dictyosomes are involved in protein synthesis and transport to the vacuole. The accumulation of reserves occurs in a well-defined and relatively short period during late embryogenesis (144–216 h after flowering). Key words: Arabidopsis, cotyledons, embryogenesis, reserve deposition, stereology.

Leaf and cell development during UV-B acclimation in Arabidopsis thaliana

2009 ◽  
Vol 153 (2) ◽  
pp. S203 ◽  
Author(s):  
Eveline Jacques ◽  
Kathleen Hectors ◽  
Yves Guisez ◽  
Jean-Pierre Verbelen ◽  
Kris Vissenberg ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Development

An analysis of seed development inPisum sativum V. Fluorescence triple staining for investigating cotyledon cell development

PROTOPLASMA ◽  
1987 ◽  
Vol 140 (2-3) ◽  
pp. 164-172 ◽  
Author(s):  
Fiona M. K. Corke ◽  
C. L. Hedley ◽  
P. J. Shaw ◽  
T. L. Wang
Keyword(s):  
Seed Development ◽  
Cell Development ◽  
Cotyledon Cell ◽  
Triple Staining

Transfer Cell Development And Immunolocalization Of A Senescence Associated Gene (Sag14) In Senescing Arabidopsis Thaliana Leaves.

1999 ◽  
Vol 5 (S2) ◽  
pp. 1252-1253
Author(s):  
W. A. Russin ◽  
L. M. Weaver ◽  
R. M. Amasino
Keyword(s):  
Gene Expression ◽  
Arabidopsis Thaliana ◽  
Leaf Senescence ◽  
Cell Structure ◽  
Membrane Surface ◽  
Cell Development ◽  
Transfer Cell ◽  
Ultrastructural Changes ◽  
Mrna Levels ◽  
Thin Sections

Leaf senescence is an orderly, active process in which nutrients in a leaf are reclaimed and mobilized to other parts of the plant. It is considered to be the final stage in leaf development. During senescence leaves undergo highly coordinated changes in cell structure, metabolism, and gene expression. For example, chloroplasts undergo obvious structural modifications during leaf senescence. Regarding gene expression, genes with steady-state mRNA levels that increase during senescence are often referred to as senescence-associated genes, or SAGs.In order to study ultrastructural changes that occur during senescence, portions of fully expanded, mid-senescent, and fully senescent Arabidopsis thaliana leaves were chemically fixed using vacuum-accelerated microwave processing. Thin sections were observed for ultrastructural changes such as development of transfer cells that are characterized by the presence of cell wall ingrowths. Transfer cell development is correlated with an increased capacity of tissues to take up materials, related partly to an increase in plasma membrane surface area.

Stable genetic transformation of Arabidopsis thaliana by Agrobacterium inoculation in planta

1994 ◽  
Vol 5 (4) ◽  
pp. 551-558 ◽  
Author(s):  
Seok So Chang ◽  
Soon Ki Park ◽  
Byung Chul Kim ◽  
Bong Joong Kang ◽  
Dal Ung Kim ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Genetic Transformation ◽  
In Planta
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