Summary
Protoplasts from rhizoids of two-celledFucus embryos were obtained using laser microsurgery. They were characterised by a membrane potential similar to that of a rhizoid cell in situ and a rapid regeneration of the cell wall. Nucleated subprotoplasts with regenerated cell wall were capable of photopolarisation as zygotes. These pseudozygotes developed into miniature embryos similar to zygotic embryos. The nucleus appeared to be necessary for pseudozygote polarisation but the transcription inhibitor, actinomycin D, though preventing zygote polarisation, was inactive on pseudozygotes. A role for the nucleus as a geometric reference is discussed.
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Abbreviations
- AD:
-
actinomycin D
- ASW:
-
artificial sea water
- PEG:
-
polyethyleneglycol
- CFW:
-
calcofluor white
- MTOC:
-
microtubule organising centre
References
Allen VW, Kropf DL (1992) Nuclear rotation and lineage specification inPelvetia embryos. Development 115: 873–883
Beams HW (1937) The air turbine ultracentrifuge, together with some results upon ultracentrifuging the eggs ofFucus serratus. J Marine Biol Assoc UK 21: 571–588
Berger F, Brownlee C (1994) Photopolarization of theFucus sp. zygote by blue light involves a plasma membrane redox chain. Plant Physiol 105: 519–527
—, Taylor AR, Brownlee C (1994) Cell fate determination by the cell wall in earlyFucus development. Science 263: 1421–1423
Bentrup FW (1963) Vergleichende Untersuchungen zur Polaritätsinduktion durch das Licht an der Equisetumspore und der Fucuszygote. Planta 59: 472–491
Boyen C, Kloareg B, Vreeland V (1988) Comparison of protoplast wall regeneration and native wall deposition in zygotes ofFucus distichus by cell wall labelling with monoclonal antibodies. Plant Physiol Biochem 26: 653–659
Brawley SH, Quatrano RS (1979) Effects of microtubule inhibitors on pronuclear migration and embryogenesis inFucus distichus (Phaeophyta). J Phycol 15: 266–272
—, Quatrano RS, Wetherbee R (1976) Fine-structural studies of the gametes and embryo ofFucus vesiculosus L. (Phaeophyta). II. The cytoplasm of the egg and young zygote. J Cell Sci 20: 255–271
— — — (1977) Fine-structural studies of the gametes and embryo ofFucus vesiculosus L. (Phaeophyta). III. Cytokinesis and the multicellular embryo. J Cell Sci 24: 275–294
Brownlee C, Pulsford AL (1988) Visualisation of the cytoplasmic free calcium gradient inFucus serratus rhizoids: correlation with cell ultrastructure and polarity. J Cell Sci 91: 249–256
—, Wood JW (1986) A gradient of cytoplasmic free calcium in growing rhizoid cells ofFucus serratus. Nature 320: 624–626
Burgess J (1983) Wall regeneration around isolated protoplasts. Int Rev Cytol [Suppl] 16: 55–77
Butler DM, Evans LV, Kloareg B (1990) Isolation of protoplasts from marine macroalgae. In: Akatsuka I (ed) Introduction to applied phycology. SPB Academic Publishing, the Hague, pp 647–668
Cocking EC (1972) Plant cell protoplasts isolation and development. Annu Rev Plant Physiol 23: 29–50
De Boer AH, Van Duijn B, Giesberg P, Wegner L, Obermeyer G, Köhler K, Linz KW (1994) Laser microsurgery: a versatile tool in plant (electro)physiology. Protoplasma 178: 1–10
Derksen J, Traas JA (1984) Growth of tobacco pollen tubes in vitro: effects of drags interference with the cytoskeleton. In: Willemse MTM, Van Went JL (eds) Proceedings of the 8th International Symposium on Sexual Reproduction in Seed Plants, Ferns and Mosses. Pudoc, Wageningen, pp 64–70
Ducreux G, Kloareg B (1988) Plant regeneration from protoplasts ofSphacelaria (Phaeophyceae). Planta 174: 25–29
Goodner B, Quatrano RS (1993)Fucus embryogenesis: a model to study the establishment of polarity. Plant Cell 5: 1471–1481
Greulich KO, Weber G (1992) The light microscope on its way from an analytical to a preparative tool. J Microsc 167: 127–151
Hurd AM (1920) Effect of unilateral monochromatic light and group orientation on the polarity of germinatingFucus spores. Bot Gaz 70: 25–50
Hyman AA (1989) Centrosome movement in the early division ofCeanorhabditis elegans: a cortical site determining centrosome position. J Cell Biol 109: 1185–1193
Jaffe LF (1958) Tropistic responses of zygotes of the Fucaceae to polarised light. Exp Cell Res 15: 282–299
Jenkins GI, Cove DJ (1963) Light requirements for regeneration of protoplasts of the mossPhyscomitrella patens. Planta 157: 39–45
Kloareg B, Quatrano RS (1987) Enzymatic removal of the cell walls from zygotes ofFucus disticus (L.) Powell (Phaeophyta). Hydrobiolgia 151/152: 123–129
— — (1988) Structure of the cell walls of marine algae and ecophysiological functions of the matrix polysaccharides. Oceanogr Marine Biol Annu Rev 26: 259–315
—, Polne-Fuller M, Gibor A (1989) Mass production of viable protoplasts fromMacrocystis pyrifera (L.) C. Ag. (Phaeophyta). Plant Sci 62: 105–112
Krantz E, Lörz H (1993) In vitro fertilization with isolated single gametes results in zygotic embryogenesis and fertile maize plants. Plant Cell 5: 739–746
Kroh M, Knuimann B (1988) Development of subprotoplasts from in vitro-grown tobacco pollen tubes. Sex Plant Reprod 1: 103–113
Kropf DL (1992) Establishment and expression of cellular polarity in fucoid zygotes. Microbiol Rev 56: 316–339
—, Kloareg B, Quatrano RS (1988) Cell wall is required for fixation of the embryonic axis inFucus zygotes. Science 239: 187–190
—, Hopkins R, Quatrano RS (1989) Protein synthesis and morphogenesis are not tightly linked during embryogenesis inFucus. Dev Biol 134: 452–461
—, Maddock A, Gard DL (1990) Microtubule distribution and function in earlyPelvetia development. J Cell Sci 97: 545–552
—, Coffman HR, Kloareg B, Allen VW, Glenn P (1993) Cell wall and rhizoid polarity inPelvetia embryos. Dev Biol 160: 303–314
Kurkdjian A, Leitz G, Manigault P, Harim A, Greulich KO (1993) Non-enzymatic access to the plasma membraneMedicago root hairs by laser microsurgery. J Cell Sci 105: 263–268
Lloyd CW, Pearce KJ, Rawlins DJ, Ridge RW, Shaw PJ (1987) Endoplasmic microtubules connect the advancing nucleus to the tip of legume root hairs but F-actin is involved in basipetal migration. Cell Motil Cytoskeleton 8: 27–36
Maeda H, Ishida N (1967) Specifity of binding of hexopyranosyl polysaccharides with a fluorescent brightener. J Biochem 62: 276–278
Mejjad M, Loiseaux-de-Goer S, Ducreux G (1992) Protoplasts isolation, development and regeneration in different strains ofPilavela littoralis (L.) Kjellm. (Phaeophyceae). Protoplasma 169: 42–48
Mishra AK, Colvin JR (1969) The formation of wall-like envelopes by isolated tomato-fruit protoplasts. Protoplasma 67: 295–305
Pojnar E, Willison JHM, Cocking EC (1967) Cell-wall regeneration by isolated tomato-fruit protoplasts. Protoplasma 64: 460–480
Quatrano RS (1968) Rhizoid formation inFucus zygotes: dependence on protein and ribonucleic acid syntheses. Science 162: 468–470
— (1972) An ultrastructural study of the determined site of rhizoid formation inFucus zygotes. Exp Cell Res 70: 1–12
—, Stevens PT (1976) Cell wall assembly inFucus zygotes. I. Characterization of the polysaccharide components. Plant Physiol 58: 224–231
—, Brawley SH, Hogsett WE (1979) The control of the polar deposition of a sulphated polysaccharide inFucus zygotes. In: Subtelny S, Konisberg IR (eds) Determinants of spatial organisation. Academic Press, New York, pp 77–96
Russell SD (1993) The egg cell: development and role in fertilization and early embryogenesis. Plant Cell 5: 1349–1359
Rutten TLM, Derksen J (1990) Organization of actin filaments in regenerating and outgrowing subprotoplasts from pollen tubes ofNicotiana tabacum L. Planta 180: 471–479
Schmiedel G, Schnepf E (1979a) Side branch formation and orientation in the caulonema of the moss,Funaria hygrometrica: experiments with inhibitors and with centrifugation. Protoplasma 101: 47–59
— — (1979b) Side branch formation and orientation in the caulonema of the moss,Funaria hygrometrica: normal development and fine structure. Protoplasma 100: 367–383
Schnepf E (1986) Cellular polarity. Annu Rev Plant Physiol 37: 23–47
Snyder M, Gehrung S, Page BD (1991) Studies concerning the temporal and genetic control of cell polarity inSaccharomyces cerevisiae. J Cell Biol 114: 515–532
Swope RE, Kropf DL (1993) Pronuclear positioning and migration during fertilization inPelvetia. Dev Biol 157: 269–276
Taylor AR, Brownlee C (1992) Localized patch clamping of plasma membrane of a polarized plant cell. Plant Physiol 99: 1686–1688
— — (1993) Calcium and potassium currents in theFucus egg. Planta 1989: 109–119
—, Roberts SK, Brownlee C (1992) Calcium and related channels in fertilization and early development ofFucus. Philos Trans R Soc Lond [Biol] 338: 97–104
Vogelmann TC, Bassei AR, Miller JH (1981) Effects of microtubule-inhibitors on nuclear migration and rhizoid differentiation in germinating fern spores (Onoclea sensibilis). Protoplasma 109: 295–316
Wagner VT, Brian L, Quatrano RS (1992) Role of a vitronectin-like molecule in embryo adhesion of the brown algaFucus. Proc Natl Acad Sci USA 89: 4644–4688
West MAL, Harada HH (1993) Embryogenesis in higher plants: an overview. Plant Cell 5: 1361–1369
Whitaker DM (1931) Some observations on the eggs ofFucus and upon their mutual influence in the determination of the development axis. Biol Bull 61: 294–308
— (1937) Determination of polarity by centrifuging eggs ofFucus furcatus. Biol Bull 73: 249–260
Williamson FA, Fowke LC, Weber G, Constabel F, Gamborg O (1977) Microfibril deposition on cultured protoplasts ofVicia hajastana. Protoplasma 91: 213–219
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Berger, F., Brownlee, C. Physiology and development of protoplasts obtained fromFucus embryos using laser microsurgery. Protoplasma 186, 63–71 (1995). https://doi.org/10.1007/BF01276937
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DOI: https://doi.org/10.1007/BF01276937