Didymium iridis in Past and Future Research

Collins, O’Neil Ray; Betterley, Donald A.

doi:10.1016/b978-0-12-049601-3.50007-9

Cited by 13 publications

(2 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…molds itself, biofluiddynamics and lastly for information processing in a complex environment without a nervous network [9]. While research on cell biology also focused on Didymium iridis [10], biophysical research was centered almost exclusively on P. polycephalum. A few exceptions are comparing studies on the food foraging behavior of P. polycephalum and species of the Didymium genus [11,12].…”

Section: Quantitative Comparison Of Plasmodial Migration and Oscillat...mentioning

confidence: 99%

Quantitative comparison of plasmodial migration and oscillatory properties across different slime molds

Westendorf

Gruber²,

Schnitzer³

et al. 2018

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

The clade of Myxogastria, commonly described as true or plasmodial slime molds, contains more than 1000 species. During their life cycle many of these slime molds develop extended networks of connected veins, known as unicellular (phanero)plasmodia. Among those, Physarum polycephalum gathered by far the most attention of biologists and physicists. Via oscillating cytoplasmic streams nutrients as well as signaling factors spread through the adaptive plasmodial network. These properties have rendered it not only a model organism for acellular slime molds, but also a model to investigate network dynamics, biological fluiddynamics and food foraging behavior. Here, we studied parameters of plasmodial growth and network development, including chemotactic responses, in three slime mold species: Physarum polycephalum, Badhamia utricularis, and Fuligo septica. We discovered significant variations in chemotaxis, velocity, and oscillatory behavior of plasmodia among and within these species. Interestingly the patterns of the variations also reflect phylogenetic relationships of the species. In contrast to a common notion, phaneroplasmodia of slime molds develop diverse and specifically organized networks by triggers yet to be explored. This work lays the ground for studying more of these organisms to understand basic features of planar network organization and their variations, which evolved as successful solutions of nature.

show abstract

Section: Quantitative Comparison Of Plasmodial Migration and Oscillat...mentioning

confidence: 99%

Quantitative comparison of plasmodial migration and oscillatory properties across different slime molds

Westendorf

Gruber²,

Schnitzer³

et al. 2018

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…A number of recent reviews (CoLLINS 1979(CoLLINS , 1981CoLLINS and BETTERLEY 1982) have summarized many of the studies dealing with reproductive systems. Based on the results of a number of investigations it may be concluded that some isolates of an individual species are heterothallic, whereas others have no mating types and are considered nonheterothallic (CoLLINS 1961(CoLLINS , 1963(CoLLINS , 1976.…”

Section: Introductionmentioning

confidence: 99%

A Cytophotometric Investigation of Haploid × Polyploid Matings in the Acellular Slime MoldDidymium Iridis

Ritch

Therrien

1988

Caryologia

View full text Add to dashboard Cite

SUMMARY -Feulgen-DNA cytophotometry has been used to analyze matings between compatible haploid and polyploid myxamoebae of the plasmodial slime mould Didymium iridis. The polyploid myxamoebae used in this investigation included both a naturally occurring isolate and three isolates which had been induced to become polyploids by treating the parental haploid isolates with the mitotic inhibitor isopropyl N-(3-chlorophenyl) carbamate (CIPC). Regardless of the source of the polyploid parent, the maximum frequency of heterokaryon formation attained was approximately 40 percent; however, the frequency at which the heterokaryons were converted to zygotes was substantially lower in the case of the CIPC-induced polyploids than it was with the naturally occurring polyploid isolate. With the naturally occurring polyploid the maximum frequency of zygote formation was 32 percent, whereas the maximum frequency of zygote formation varied from 10 to 18 percent with the CIPC-induced polyploids. On the basis of these experiments we are able to conclude that polyploidy does not form a barrier to syngamy between myxamoebae which bear compatible mating alleles and that the aberrant mating results which have been previously observed to result from crosses between haploid and polyploid isolates are most likely attributable to chromosome eliminations which follow syngamy and zygote formation.

show abstract

Cellular Interaction in Plasmodial Slime Moulds

Schrauwen¹

1984

Cellular Interactions

View full text Add to dashboard Cite

Didymium iridis in Past and Future Research

Cited by 13 publications

References 79 publications

Quantitative comparison of plasmodial migration and oscillatory properties across different slime molds

Quantitative comparison of plasmodial migration and oscillatory properties across different slime molds

A Cytophotometric Investigation of Haploid × Polyploid Matings in the Acellular Slime MoldDidymium Iridis

Cellular Interaction in Plasmodial Slime Moulds

Contact Info

Product

Resources

About