The Golgi Apparatus and Membrane Trafficking in Green Algae

Domozych, David S.

doi:10.1016/s0074-7696(08)62020-3

Cited by 22 publications

(12 citation statements)

References 126 publications

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“…In plant cells, depending on the cellular events and cell types studied, actin filaments and microtubules have both been proposed as the cytoskeletal elements mediating vesicle transport. In some green algal cells, microtubules are involved in maintaining the integrity of the Golgi apparatus and the secretory pathway [20]. In contrast, in higher plant cells, our recent immunofluorescence studies using a Golgi marker antibody and microtubule disrupting agents clearly demonstrate that neither the organisation of the Golgi stacks nor the spatial distribution of the Golgi apparatus as a whole is affected by microtubule depolymerization (Hawes and Satiat-Jeunemaitre, unpublished data).…”

Section: The Cytoskeleton and Vesicle Traffickingmentioning

confidence: 96%

“…Currently the 'Rothman model', based upon a shuttle of vesicles from one cisternum to the next [89], is gaining in popularity. Yet, a problem still remains with some scale forming green algae where the original 'cisternal progression' model is favoured (see [20]). Another problem lies with the fact that the detailed localisation of the Golgi processing events and their correlation with the structural polarity of the Golgi stack is difficult to establish as fractionation of the plant Golgi into individual cisternal compartments has not yet been achieved and specific probes to the processing enzymes have yet to be constructed.…”

Section: Going Down the Golgi Stackmentioning

confidence: 99%

“…Indeed, to support this hypothesis, it has been demonstrated in some algal cells that two Golgi stacks can function in an unsynchronised manner, one actively secreting whilst the other lies dormant [20]. Furthermore, in root cap cells, the activity of the Golgi shifts when the cells differentiate from meristematic through columellar to peripheral secretory.…”

Section: Going Down the Golgi Stackmentioning

confidence: 99%

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Insights into the secretory pathway and vesicular transport in plant cells

Satiat‐Jeunemaître

Hawes

1993

Biology of the Cell

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Section: The Cytoskeleton and Vesicle Traffickingmentioning

confidence: 96%

Section: Going Down the Golgi Stackmentioning

confidence: 99%

Section: Going Down the Golgi Stackmentioning

confidence: 99%

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Insights into the secretory pathway and vesicular transport in plant cells

Satiat‐Jeunemaître

Hawes

1993

Biology of the Cell

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“…Although the stacked structure of the Golgi is widely conserved, the number of cisternae per stack varies from 3-4 in P. pastoris to about 20 in some algae (Domozych 1991, Mogelsvang et al 2003). The size of the stack seems to be nearly constant in a given cell type.…”

Section: Variable Features Of the Golgimentioning

confidence: 99%

Membrane Traffic Within the Golgi Apparatus

Glick

Nakano

2009

Annu. Rev. Cell Dev. Biol.

306

285

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Newly synthesized secretory cargo molecules pass through the Golgi apparatus while resident Golgi proteins remain in the organelle. However, the pathways of membrane traffic within the Golgi are still uncertain. Most of the available data can be accommodated by the cisternal maturation model, which postulates that Golgi cisternae form de novo, carry the secretory cargoes forward, and ultimately disappear. The entry face of the Golgi receives material that has been exported from transitional ER sites, and the exit face of the Golgi is intimately connected with endocytic compartments. These conserved features are enhanced by cell type-specific elaborations such as tubular connections between mammalian Golgi cisternae. Key questions remain about how Golgi cisternae form and then mature, how resident Golgi proteins recycle, how Golgi compartments achieve their identities, how the unique architecture of the Golgi is established, and how different structural elements contribute to Golgi function.

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“…3, right panel). This concept has emerged from the observation of transport of large glycoprotein scales, that are synthesized in the Golgi apparatus of green algae, and are likely not to be carried within vesicular shuttles since these structures seem too large to enter transport vesicles (Becker et al 1995;Domozych 1991). Similarly, it has been discussed how lipoprotein particles or viral particles can move through the stack as they are obviously too large to enter normal transport vesicles (Dahan et al 1994;Griffiths and Rottier 1992).…”

Section: Balance Of Anterograde and Retrograde Transport Between The mentioning

confidence: 99%

Biosynthetic protein transport through the early secretory pathway

Nickel

Wieland

1998

Histochemistry and Cell Biology

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Newly synthesized proteins destined for delivery to the cell surface are inserted cotranslationally into the endoplasmic reticulum (ER) and, after their correct folding, are transported out of the ER. During their transport to the cell surface, cargo proteins pass through the various cisternae of the Golgi apparatus and, in the trans-most cisternae of the stack, are sorted into constitutive secretory vesicles that fuse with the plasma membrane. Simultaneously with anterograde protein transport, retrograde protein transport occurs within the Golgi complex as well as from the Golgi back to the ER. Vesicular transport within the early secretory pathway is mediated by two types of non-clathrin coated vesicles: COPI- and COPII-coated vesicles. The formation of these carrier vesicles depends on the recruitment of cytosolic coat proteins that are thought to act as a mechanical device to shape a flattened donor membrane into a spherical vesicle. A general molecular machinery that mediates targeting and fusion of carrier vesicles has been identified as well. Beside a general overview of the various coat structures known today, we will discuss issues specifically related to the biogenesis of COPI-coated vesicles: (1) a possible role of phospholipase D in the formation of COPI-coated vesicles; (2) a functional role of a novel family of transmembrane proteins, the p24 family, in the initiation of COPI assembly; and (3) the direction COPI-coated vesicles may take within the early secretory pathway. Moreover, we will consider two alternative mechanisms of protein transport through the Golgi stack: vesicular transport versus cisternal maturation.

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The Golgi Apparatus and Membrane Trafficking in Green Algae

Cited by 22 publications

References 126 publications

Insights into the secretory pathway and vesicular transport in plant cells

Insights into the secretory pathway and vesicular transport in plant cells

Membrane Traffic Within the Golgi Apparatus

Biosynthetic protein transport through the early secretory pathway

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