ELABORATION OF BODY PLAN AND PHASE CHANGE DURING DEVELOPMENT OF ACETABULARIA: How Is the Complex Architecture of a Giant Unicell Built?

@article{Mandoli1998ELABORATIONOB,
  title={ELABORATION OF BODY PLAN AND PHASE CHANGE DURING DEVELOPMENT OF ACETABULARIA: How Is the Complex Architecture of a Giant Unicell Built?},
  author={Dina F. Mandoli},
  journal={Annual review of plant physiology and plant molecular biology},
  year={1998},
  volume={49},
  pages={
          173-198
        }
}
  • D. Mandoli
  • Published 1 June 1998
  • Biology
  • Annual review of plant physiology and plant molecular biology
While uninucleate and unicellular, Acetabularia acetabulum establishes and maintains functionally and morphologically distinct body regions and executes phase changes like those in vascular plants. Centimeters tall at maturity, this species has allowed unusual experimental approaches. Amputations revealed fates of nucleate and enucleate portions from both wild type and mutants. Historically, graft chimeras between nucleate and enucleate portions suggested that morphological instructions were… 

Figures and Tables from this paper

Acetabularia: A Unicellular Model for Understanding Subcellular Localization and Morphogenesis during Development

Strengths and weaknesses of the acetabularia acetabulum system are discussed and the body of knowledge that would make the system more powerful are outlined.

Comparison of ESTs from juvenile and adult phases of the giant unicellular green alga Acetabularia acetabulum

There is strong evidence that adult and juvenile phases in A. acetabulum vary significantly in gene expression, and the potential role of the conserved elements found within the EST sequences in post-transcriptional regulation, particularly mRNA localization and/or stability is discussed.

Calcification and measurements of net proton and oxygen flux reveal subcellular domains in Acetabularia acetabulum

The lack of complete correlation between external pH patterns and calcification suggests that other factors contribute to the control of calcification in this alga.

An analysis of morphogenesis of the reproductive whorl of Acetabularia acetabulum

A simple model of cap shape development is presented that suggests both differential growth and biophysical factors may contribute to the final shape of caps of A. acetabulum.

Differential Messenger RNA Gradients in the Unicellular AlgaAcetabularia acetabulum. Role of the Cytoskeleton1

This study has determined the level of specific messenger RNAs in the apical, middle, and basal regions using reverse transcriptase-PCR methodology and suggests that actin microfilaments of the cytoskeleton are involved in directed transport and/or anchoring of these mRNAs.

Whorl morphogenesis in the dasycladalean algae: the pattern formation viewpoint.

  • J. DumaisL. G. Harrison
  • Biology
    Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 2000
The evolutionary origin of the vegetative and reproductive whorls of Acetabularia acetabulum is considered and mechanistic explanations for some of the major evolutionary advances are provided.

Asymmetric subcellular mRNA distribution correlates with carbonic anhydrase activity in Acetabularia acetabulum.

This work hypothesized that the apical and middle regions of the stalk require greater carbonic anhydrase (CA) activity to facilitate inorganic carbon uptake for photosynthesis and cloned two CA genes (AaCA1 and AaCA2) to demonstrate this.

Morphogenesis in giant-celled algae.

Aaknox1, a kn1-like homeobox gene in Acetabularia acetabulum, undergoes developmentally regulated subcellular localization

Northern analyses demonstrate that expression of Aaknox1 is developmentally regulated, with peak levels of expression during early reproductive phase and that mRNA localization may be one mechanism by which A. acetabulum regulates gene expression post-transcriptionally.

PHYSIOLOGICAL FACTORS THAT AID DIFFERENTIATION OF ZYGOTES AND EARLY JUVENILES OF ACETABULARIA ACETABULUM (CHLOROPHYTA)

Physiological factors that impact differentiation of young diploid plants are examined to improve the understanding of early development and to enable standard genetic analyses in Acetabularia acetabulum (L.) Silva.

References

SHOWING 1-10 OF 112 REFERENCES

Coordination of cellular events that precede reproductive onset in Acetabularia acetabulum: evidence for a 'loop' in development.

The data suggest that internal cues, cell age and size, are used to regulate reproductive onset in Acetabularia acetabulum and add to the understanding of how reproduction is coordinated in this giant cell.

Establishing and maintaining the body plan ofAcetabularia acetabulumin the absence of cellularization

Abstract How do ‘unicellular’ organisms in which cytokinesis and karyokinesis may be uncoupled spatially delimit regions which are structurally and functionally distinct? Developmentally arrested (

kurkku, a Phenotype of Acetabularia acetabulum That Is Arrested in Vegetative Growth, Can Be Rescued with Wild-Type Cytoplasm.

These unique ways of analyzing vegetative mutants, combined with the ability to then perform classical genetics, may make A. acetabulum a powerful unicellular model system for the study of vegetative phase change in plants.

VEGETATIVE GROWTH OF ACETABULARIA ACETABULUM (CHLOROPHYTA): STRUCTURAL EVIDENCE FOR JUVENILE AND ADULT PHASES IN DEVELOPMENT 1

We characterized vegetative development in two inbred cell lines of Acetabularia acetabulum (L.) Silva. Cell growth occurred at the apex and by elongation of older interwhorls throughout vegetative

BRIEF INCUBATION OF GAMETANGIA‐BEARING CAPS IN ANTIBIOTICS ELIMINATES BRANCHING IN PROGENY OF ACETABULARIA ACETABULUM (CHLOROPHYTA) 1

The brief antibiotic treatment of gametangaa of Acetabularia acetabulum was rapid, had no adverse effects, and virtually eliminated branching (and any potential pathogens) from laboratory cultures in the subsequent generations.

Cell differentiation and the cytoskeleton in Acetabularia.

The current review discusses recent progress in the study of the cytoskeleton in Acetabularia and examines classic concepts of cell morphogenesis from the perspective of cytoskeletal function.

Growth of Acetabularia acetabulum (Dasycladales, Chlorophyta) on solid substrata at specific cell densities

Two culture techniques which reduce the labour in handling large cell populations and the life-cycle duration of this giant alga are described and quantified and cell populations were easier to handle if they grew attached to a solid substratum and the density of the cell population dramatically affected rates of development.

Differentiation, growth and morphogenesis: Acetabularia as a model system.

The aim of this paper is to review the present knowledge of the main aspects of differentiation of Acetabularia, a unicellular, eukaryotic organism, and to underline the multiple control pathways

Temporal Control of Differentiation by the Cell Nucleus: Evidence for a Species-Specific Nuclear Suppression of Enzymes at the Early Generative Phase in Acetabularia

The role of the cell nucleus in controling steps of differentiation has been revealed by comparing nucleate and anucleate cells of Acetabularia and this result indicates that the suppression by the nucleus is species-specific.
...