Although there have been a number of investigations over the last century attempting to untangle the mechanisms of slime fibre formation (summarized in Supplementary Table 1 11,12,13,14,15,16,17,18,19, there is still only a very superficial understanding of the molecular mechanisms underlying this fascinating fabrication process.
Although fibre formation has been reported in many studies, mechanical properties of slime fibres were never previously performed.
Since mechanical agitation of slime was found to initiate fibre formation, we also imaged physisorbed, vortexed crude slime samples (1 100 dilution) with AFM, revealing the aggregation of nanoglobules into chains and micron-scale assemblies with nanofibrillar structure (Fig. 2b d, Supplementary Fig. 4).
One thing quorum sensing appears to help set off is the formation of biofilms, which are bacterial slimes that coat surfaces, a prime example being dental plaque.
While we are cautious not to over-interpret these results within the larger diversity of onychophoran species, our study provides clear evidence for the synergistic contribution of both mechanical and chemical factors to fibre formation in slime from E. rowelli.
The role of an organic slime matrix in the formation of pyritized burrow trails and pyrite concretions.
Examples include the formation of fruiting bodies in microbes [ 3], slime moulds [ 4], and the overexploitation of public goods, such as the environment [ 5] and the global climate by humans [ 6].
There are two groups of slime molds: the cellular slime molds and the acellular slime molds.
Consistent with findings of previous studies of slime from different onychophoran subgroups (Supplementary Table 1), our multi-scale approach clearly indicates that mechanical and chemical factors act synergistically to promote slime fibre formation and regeneration.
There are loads of different kinds of slime: butter slime, icy slime (which is velvety), cloud slime, which uses instant snow and has a coldish feel.
