Coccidioides immitis appears to be unable to digest particulate collagen when cultured on collagen-containing semisolid culture media. However, all C. immitis strains solubilized collagen when the fungus was grown in liquid suspension cultures. Moreover, sterile culture filtrates were collagenolytic in collagen-buffer-agar plate assays.

Suspension cultures of Catharanthus roseus were used to evaluate ultraviolet-B (UV-B) treatment as an abiotic elicitor of secondary metabolites. A dispersed cell suspension culture from C. roseus leaves in late exponential phase and stationary phase were irradiated with UV-B for 5 min. The stationary phase cultures were more responsive to UV-B irradiation than late exponential phase cultures. C...

The properties of potassium transport in carrot (Daucus carota L.) suspension culture cells and their isolated protoplasts were examined. Cells cultured in Murashige and Skoog (MS) medium (Plant Physiol 15: 473-497) were potassium saturated and, consequently, they exhibited little net potassium accumulation. Cells that transport and accumulate potassium were derived from the MS-grown cells by c...

The human spermatozoa! motility was significantly affected by the whole culture solution and slightly less significantly by the microbial cell suspension of Ureaplasma urealyticum but not the microbial metabolites (culture supernatant). The same phenomenon was observed with the preparations of Mycoplasma hominis in somewhat less degree.