scholarly journals DGAT2 revealed by the immunogold technique in Arabidopsis thaliana lipid bodies associated with microtubules

2012 ◽  
Vol 50 (3) ◽  
pp. 427-431 ◽  
Author(s):  
Maria Kwiatkowska ◽  
Dariusz Stępiński ◽  
Katarzyna Popłońska ◽  
Agnieszka Wojtczak ◽  
Justyna T. Polit
Keyword(s):  
Arabidopsis Thaliana ◽  
Lipid Bodies ◽  
Immunogold Technique

scholarly journals Ultrastructural study of maturing pollen in Arabidopsis thaliana (L.) Heynh. (Brassicaceae)

2014 ◽  
Vol 66 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Krystyna Zając
Keyword(s):  
Arabidopsis Thaliana ◽  
Vegetative Cell ◽  
Generative Cell ◽  
Spherical Shape ◽  
Ultrastructural Changes ◽  
Lipid Bodies ◽  
Cell Cytoplasm ◽  
Cell Form ◽  
Microspore Stage ◽  
Pollen Stage

Ultrastructural changes in <em>Arabidopsis thaliana</em> pollen, between late microspore stage and mature pollen stage were described. When the generative cell was peeled off from the intine, it was of spherical shape and had all usual organelles with the exception of plastids. The cytoplasm transformation of the vegetative cell included an increase in the number of mitochondria and changes in the accumulation of starch and lipid bodies. The starch plastids were observed at the bicellular and early tricellular pollen stages and next starch was utilized during the maturation procces. The lipid bodies of the vegetative cell form a very regular sheath around the generative cell and then, around the sperm cells. Before anthesis the lipid bodies were dispersed within the whole vegetative cell cytoplasm.

Ultrastructural changes of Arabidopsis thaliana pollen during final maturation and rehydration

Zygote ◽  
1993 ◽  
Vol 1 (2) ◽  
pp. 173-179 ◽  
Author(s):  
A.C. Van Aelst ◽  
E.S. Pierson ◽  
J.L. Van Went ◽  
M. Cresti
Keyword(s):  
Arabidopsis Thaliana ◽  
Outer Part ◽  
Peripheral Region ◽  
Pollen Grain ◽  
Ultrastructural Changes ◽  
Sperm Cells ◽  
Lipid Bodies ◽  
Electron Dense Material ◽  
Final Maturation ◽  
The Individual

SummarySeveral ultrastructural changes occur during dehydration and subsequent rehydration of Arabidopsis thaliana pollen. The cytoplasmic channels, present in the outer part of the intine of the mature, dehydrating pollen grain, degenerate and develop into electron-dense inclusions. At the same time a large quantity of electron-dense material is deposited in the cavities of the exine. A large number of vesicles is produced in the vegetative cell, and they become predominantly located in the peripheral region near the intine. Starch of amyloplasts is consumed and the lipid bodies which originally surround the sperm cells become randomly distributed. In addition, the individual lipid bodies become enveloped by single rough endoplasmic reticulum cisterns.

scholarly journals 'Elaioplasts' identified as lipotubuloids in Althaea rosea, Funkia sieboldiana and Vanilla planifolia contain lipid bodies connected with microtubules

2011 ◽  
Vol 80 (3) ◽  
pp. 211-219 ◽  
Author(s):  
Maria Kwiatkowska ◽  
Dariusz Stępiński ◽  
Katarzyna Popłońska ◽  
Agnieszka Wojtczak ◽  
Justyna Teresa Polit
Keyword(s):  
Developmental Stages ◽  
Lipid Bodies ◽  
Vanilla Planifolia ◽  
Cytoplasmic Domains ◽  
Immunogold Technique

"Elaioplasts" observed in <em>Vanilla planifolia</em>, <em>Funkia Sieboldiana</em> and <em>Althaea rosea </em>exhibit all the features characteristic of lipotubuloids earlier described in <em>Ornithogalum umbellatum</em>. They are cytoplasmic domains containing aggregates of lipid bodies connected with microtubules. The immunogold technique confirmed the presence of tubulin in this domain. These structures do not have their own membranes but they are surrounded by a tonoplast at the side of a vacuole since they invaginate into it. In cytoplasm of this domain among lipid bodies there are numerous ribosomes, ER cisternae and vesicles as well as few mitochondria, Golgi structures and microbodies while at older developmental stages there are also autolytic vacuoles. The fact that they are so similar to <em>O. umbellatum</em> lipotubuloids suggest that "elaioplasts" of <em>V. planifolia</em>, <em>F. Sieboldiana </em>and <em>A. rosea </em>can also be named lipotubuloids.

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

The effect of daylength on the transition to flowering in phytochrome-deficient, late-flowering and double mutants of Arabidopsis thaliana

1995 ◽  
Vol 95 (2) ◽  
pp. 260-266 ◽  
Author(s):  
Maarten Koornneef ◽  
Corrie Hanhart ◽  
Patty van Loenen-Martinet ◽  
Hetty Blankestijn de Vries
Keyword(s):  
Arabidopsis Thaliana ◽  
Late Flowering ◽  
Transition To Flowering

Identification of a single-copy gene encoding a Type I chlorophyll a/b-binding polypeptide of photosystem I in Arabidopsis thaliana

1992 ◽  
Vol 84 (4) ◽  
pp. 561-567 ◽  
Author(s):  
Poul E. Jensen ◽  
Michael Kristensen ◽  
Tine Hoff ◽  
Jan Lehmbeck ◽  
Bjarne M. Stummann ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Chlorophyll A ◽  
Photosystem I ◽  
Single Copy ◽  
Type I ◽  
Single Copy Gene ◽  
Gene Encoding ◽  
Copy Gene

Flavonoid profiling by LC-MS IN 14 – 3-3ν knockout mutants of Arabidopsis thaliana during drought stress conditions

Planta Medica ◽  
2014 ◽  
Vol 80 (10) ◽  
Author(s):  
F Nabbie ◽  
O Shperdheja ◽  
J Millot ◽  
J Lindberg ◽  
B Peethambaran
Keyword(s):  
Arabidopsis Thaliana ◽  
Drought Stress ◽  
Stress Conditions ◽  
Knockout Mutants
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