Summary
The structure and development of the complex periplast, or cell covering, of cryptomonads is reviewed. The periplast consists of the plasma membrane (PM) plus an associated surface periplast component (SPC) and cytoplasmic or inner periplast component (IPC). The structure of the SPC and IPC, and their association with the PM, varies considerably between genera. This review, which concentrates on cryptomonads with an IPC of discrete plates, discusses relationships between periplast components and examines the development of this unique cell covering. Formation and growth of inner plates occurs throughout the cell cycle from specialized regions termed anamorphic zones. Crystalline surface plates, which comprise the SPC in many cryptomonad species, appear to form by self-assembly of disorganized subunits. InKomma caudata the subunits are composed of a high molecular weight glycoprotein that is produced within the endomembrane system and deposited onto the cell surface within anamorphic zones. The self-assembly of subunits into highly ordered surface plates appears closely associated with developmental changes in the underlying IPC and PM.
Similar content being viewed by others
References
Antia NJ, Kalley JP, McDonald J, Bisalputra T (1973) Ultrastructure of the marine cryptomonadChroomonas salina cultured under conditions of photoautotrophy and glycerol-heterotrophy. J Protozool 20: 377–385
Brett SJ, Wetherbee R (1986) A comparative study of periplast structure inCryptomonas cryophila andC. ovata (Cryptophyceae). Protoplasma 131: 23–31
Dodge JD (1969) The ultrastructure ofChroomonas mesostigmatica Butcher (Cryptophyceae). Arch Microbiol 69: 266–280
Erata M, Chihara M (1989) Re-examination ofPyrenomonas andRhodomonas (Class Cryptophyceae) through ultrastructural survey of red pigmented cryptomonads. Bot Mag Tokyo 102: 429–443
Faust MA (1974) Structure of the periplast ofCryptomonas ovata var.palustris. J Phycol 10: 121–124
Gantt E (1971) Micromorphology of the periplast ofChroomonas sp. (Cryptophyceae). J Phycol 7: 177–184
Grim JN, Staehelin LA (1984) The ejectisomes of the flagellateChilomonas paramecium: visualization by freeze-fracture and isolation techniques. J Protozool 31: 259–267
Hausmann K, Walz B (1979) Periplaststruktur und Organisation der Plasmamembrane vonRhodomonas spec. (Cryptophyceae). Protoplasma 101: 349–354
Hibberd DJ, Greenwood AD, Griffiths HB (1971) Observations on the ultrastructure of the flagella and periplast in the Cryptophyceae. Br Phycol J 6: 61–72
Hill DRA (1991 a)Chroomonas and other blue-green cryptomonads. J Phycol 27: 133–145
— (1991 b) A revised circumscription ofCryptomonas (Cryptophyceae) based on examination of Australian strains. Phycologia 30: 179–188
—, Wetherbee R (1986)Proteomonas sulcata gen. et sp.nov. (Cryptophyceae), a cryptomonad with two morphologically distinct and alternating forms. Phycologia 25: 521–543
— — (1988) The structure and taxonomy ofRhinomonas pauca gen. et sp.nov. (Cryptophyceae). Phycologia 27: 355–365
— — (1989) A reappraisal of the genusRhodomonas (Cryptophyceae). Can J Bot 28: 143–158
— — (1990)Guillardia theta gen. et sep.nov. (Cryptophyceae). Can J Bot 68: 1873–1876
Klaveness D (1981)Rhodomonas lacustris (Pascher & Ruttner) Javornicky (Cryptomonadida): ultrastructure of the vegetative cell. J Protozool 28: 83–90
Klaveness D (1985) Classical and modern criteria for determining species of Cryptophyceae. Bull Plankton Soc Jap 32: 111–123
Kugrens P, Lee RE, Andersen RA (1986) Cell form and surface patterns inChroomonas andCryptomonas cells (Cryptophyta) as revealed by scanning electron microscopy. J Phycol 22: 512–522
Kugrens P, Lee RE (1987) An ultrastructural survey of cryptomonad periplast using quick-freezing freeze fracture techniques. J Phycol 23: 365–376
— — (1991) Organization of cryptomonads. In: Patterson DJ, Larsen J (eds) The biology of free-living heterotrophic flagellates. Clarendon Press, Oxford, pp 219–233
Lucas IAN (1970) Observations on the fine structure of the Cryptophyceae. 1. The genusCryptomonas. J Phycol 6: 30–38
Messner P, Sleytr UB (1992) Crystalline bacterial cell-surface layers. Adv Microbiol Physiol 33: 213–275
Meyer SR, Pienaar RN (1984) The microanatomy ofChroomonas africana sp.nov. (Cryptophyceae). S Afr Tydskr Plank 3: 306–319
Mnawar M, Bistricki T (1979) Scanning electron microscopy of some nanoplankton cryptomonads. Scanning Electron Microsc 3: 247–252
Perasso L, Hill DRA, Wetherbee R (1992) Transformation and development of the flagellar apparatus ofCryptomonas ovata (Cryptophyceae) during cell division. Protoplasma 170: 53–67
—, Brett SJ, Wetherbee R (1993) Pole reversal during cytokinesis in the Cryptophyceae. Protoplasma 174: 19–24
Roberts K, Shaw PJ, Hills GJ (1981) High-resolution electron microscopy of glycoproteins: the crystalline cell wall ofLobomonas. J Cell Sci 51: 295–321
Santore UJ (1977) Scanning electron microscopy and comparative micromorphology of the periplast ofHemiselmis rufescens, Chroomonas sp.,Chroomonas salina and members of the genusCryptomonas (Cryptophyceae). Br Phycol J 12: 255–270
— (1982) Comparative ultrastructure of two members of the Cryptophyceae assigned to the genusChroomonas —with comments on their taxonomy. Arch Protistenk 125: 5–29
— (1984) Some aspects of taxonomy in the Cryptophyceae. New Phytol 98: 627–646
— (1985) A cytological survey of the genusCryptomonas (Cryptophyceae) with comments on its taxonomy. Arch Protistenk 130: 1–52
— (1986) The ultrastructure ofPhyrenomonas heteromorpha comb. nov. (Cryptophyceae). Bot Mar 29: 75–82
— (1987) A cytological survey of the genusChroomonas —with comments on the taxonomy of this natural group of the Cryptophyceae. Arch Protistenk 134: 83–114
Shaw PJ, Hills GJ (1982) Three-dimensional structure of a cell wall glycoprotein. J Mol Biol 162: 459–471
Sleytr UB, Messner P (1983) Crystalline surface layers on bacteria. Annu Rev Microbiol 37: 311–339
Wetherbee R, Hill DRA, McFadden GI (1986) Periplast structure of the cryptomonad flagellateHemiselmis brunnescens. Protoplasma 131: 11–22
— —, Brett SJ (1987) The structure of the periplast components and their association with plasma membrane in a cryptomonad flagellate. Can J Bot 65: 1019–1026
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Brett, S.J., Perasso, L. & Wetherbee, R. Structure and development of the cryptomonad periplast: A review. Protoplasma 181, 106–122 (1994). https://doi.org/10.1007/BF01666391
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01666391