Spores structure

Spore structure 9 Activity of biocides against prions... 

The detailed structures of bacteria (and spores), viruses and fungi were discussed by Black (2002), and the spore structures were discussed by Russell (1990). 

In the natural system the sites of spore wall formation, i.e. the sporan-gial loculus, act as mini-reactor vessels in which the above interactions can occur. If a polymerisation occurs within one such structure, the resulting (polymer) architectures will probably closely resemble the self-assembled ones formed in our artificial sporangia. 

Figure 6.5. Experiments involving mimics of sporopollenin (the principal component of spore walls] demonstrate that patterns very similar, if not identical to those of natural spores and pollen, can be produced from mixtures containing colloidal particles. All scales refer to bar in (a. (a Spore-like structures of polystyrene particles and particle aggregates formed around a droplet of hydrocarbon. Scale = 10 p.m. (b A broken structure like that shown in (a. Scale =...

Figure 6.7. Hypothetical representation of a set of architectural domains defined by monomer concentration and proportion of lipid. Each defines structure regardless of the exact composition, providing this lies within its boundary. Letters a to d and a to d represent specific concentrations of components. The dotted line d to d shows a pathway of changing concentration by which a spore wall such as that shown in Figure 6.1(c) might be constructed.

B. anthracis and related species.41,44 6 Some of these peaks have been identified (e.g., as small acid soluble spore proteins and cyclic lipopeptides), but others remain uncharacterized. There is no agreement among different laboratories as to which markers are suitable for chemotaxonomic differentiata-tion of species (i.e., are consistently found in one species versus another) or for strain identification (i.e., are reproducibly found in one strain but not another). Further, although it might be anticipated that surface proteins can be preferentially ionized or extracted, the ultra-structural origin of some peptides within the cell is not always clear. 

Strange, R. E. The Structure of an Amino Sugar present in Certain Spores... 

Figure 4.4 Surface structure of a spore of Bacillus polymyxa. From left to right side view same rotated a quarter turn from right to left same rotated a further quarter turn view, of a pole.

Macko V (1981) Inhibitors and stimulants of spore germination and infection structure formation in fungi. In Turian G, Holh HR (eds) The fungal spore morphogenetic controls. Academic Press, New York, p 565... 

The poorer effect in the small ruminants may be due to the structure of their faeces and the extreme reproductive potential of their major nematode species, H. contortus. Spores of the fungus (chlamydospores) are fed to the... 

Spore germination and protonemal growth and morphogenesis are therefore, useful systems to test in vitro, with good reproducibility, potential allelochemicals both through direct co-existence test in vitro or using the described bioassays to monitor/guide isolation, purification, characterization of chemical structure of bioactive compounds. 

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