File:A slime mould - Ceratiomyxa fruticulosa (plasmodium) - geograph.org.uk - 923285.jpg
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editDescriptionA slime mould - Ceratiomyxa fruticulosa (plasmodium) - geograph.org.uk - 923285.jpg |
English: A slime mould - Ceratiomyxa fruticulosa (plasmodium). The material that looks rather like ice in this photo is the slime mould species Ceratiomyxa fruticulosa (var. fruticulosa).
More precisely, this is the plasmodial (feeding) stage, in which the slime mould is in the form of a plasmodium: a mass of protoplasm contained within a cell membrane (rather like a giant amoeba, and moving in the same manner, namely, protoplasmic streaming; however, a plasmodium, unlike an amoeba, contains multiple cell nuclei). The plasmodium shown here was transparent and gelatinous, but the photo also shows traces of the delicate silvery patterns that were evident within; these perhaps indicate the direction of the streaming flow of the protoplasm. Ceratiomyxa fruticulosa has a plasmodium that is particularly massive, much more so than other slime moulds. In this case, the species could be identified because an example of the next stage of its development, the spore-bearing stage, occurred immediately next to it. Not far away, on the same day, I encountered a very extensive example of that stage of the life-cycle: 1468765. The spore-producing stage of this species is often encountered, but its plasmodial stage is not quite so familiar. Of this species, the textbook "Introductory Mycology" (2002; Alexopoulos, Mims, and Blackwell) says: "In spite of many persistent attempts, C. fruticulosa has not been grown in laboratory culture through its entire life cycle and plasmodium formation has not been observed. In nature the plasmodium has been observed only as a mature structure just before it is ready to sporulate". |
Date | |
Source | From geograph.org.uk |
Author | Lairich Rig |
Attribution (required by the license) InfoField | Lairich Rig / A slime mould - Ceratiomyxa fruticulosa (plasmodium) / |
InfoField | Lairich Rig / A slime mould - Ceratiomyxa fruticulosa (plasmodium) |
Camera location | 56° 01′ 09″ N, 4° 35′ 00″ W ![]() ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Object location | 56° 01′ 09″ N, 4° 35′ 00″ W ![]() ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Lairich Rig and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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current | 22:38, 20 December 2017 | ![]() | 1,440 × 1,600 (755 KB) | Geograph Update Bot (talk | contribs) | Higher-resolution version from Geograph. |
01:33, 22 February 2011 | ![]() | 576 × 640 (150 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=A slime mould - Ceratiomyxa fruticulosa (plasmodium) The material that looks rather like ice in this photo is the slime mould species Ceratiomyxa fruticulosa (var. fruticulosa). More precisely, t |
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