@article{mbs:/content/journal/micro/10.1099/00221287-72-2-249, author = "WILLIAMS, S. T. and BRADSHAW, R. M. and COSTERTON, J. W. and FORGE, A.", title = "Fine Structure of the Spore Sheath of Some Streptomyces Species", journal= "Microbiology", year = "1972", volume = "72", number = "2", pages = "249-258", doi = "https://doi.org/10.1099/00221287-72-2-249", url = "https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-72-2-249", publisher = "Microbiology Society", issn = "1465-2080", type = "Journal Article", abstract = "SUMMARY The fine structure of the spore sheaths of some Streptomyces species was studied by carbon replication of intact and freeze-etched specimens and by negative staining. Young vegetative hyphae lacked a sheath but developed one before the onset of sporing. Substructures were observed on all sheath material; these differed between species and in sporogenous hyphae at different stages of development. Four components were recognized: hollow or grooved elements; amorphous material; fine fibrillar elements; and subunits of spines and hairs. The interrelationships of the components and the possible roles of the sheath were discussed.", }