Polyploidization in the amoeboid anther tapetum of Calla palustris L. [Araceae]

• Autorzy: Deregowska R. , Turala-Szybowska K.
• Języki publikacji: EN

Abstrakty

EN

In Calla palustris L. (Araceae) the anther tapetum (AT) of the amoeboid type occurs. Till the stage of I telophase in pollen mother cells (PMCs), the AT of this species has a cellular character. In premeiotic stage and during 1 meiotic division in PMCs, the differentiation of the AT is accompanied by two mitotic divisions which do not occur in all tapetal cells (TCs). The first mitosis may be acytokinetic resulting in the formation of a number of binucleate TCs. The nuclei of ca 40% TCs remain on the diploid level. Polyploidization of the nuclei in uni- and binucleate TCs is mainly connected with inhibition of mitoses at prophase. As a result, in the majority of the TCs the polyploid nuclei of regular shape arise. The polyploidization may be due also to nuclear restitution or fusion of chromosome groups at metaphase and anaphase which leads to the formation of nuclei of irregular outlines. The dissolution of the cell walls in the TCs begins already at the end of I prophase in PMCs. The fusion of the protoplasts is accomplished at the tetrad stage and the periplasmodium intruding the anther loculus is formed. At the tetrad stage in the AT of C. palustris three volume classes of the nuclei corresponding to the diploid, tetraploid and octoploid levels were distinguished.

Słowa kluczowe

EN

microspore; Araceae; amoeboid anther tapetum; mitosis; Calla palustris; cell wall; polyploidization; nucleus

• Wydawca: -
• Czasopismo: Acta Biologica Cracoviensia. Series Botanica
• Rocznik: 1996
• Tom: 38
• Opis fizyczny: p.29-39,fig.

Twórcy

autor

Deregowska R.

• Jagiellonian University, Grodzka 52, 31-044 Krakow, Poland

autor

Turala-Szybowska K.

Bibliografia

• Bhandari N. N. 1984. The microsporangium. In: Embryology of Angiosperms. Ed. Johri B. M. Springer Verlag, Berlin, London, New York, Tokyo, 53-121.
• Brodsky V. Ya. and Uryvaeva I. V. 1985. Genome multiplication in growth and development. Biology of polyploid and polytene cells. Cambridge University Press, Cambridge.
• Carniel K. 1952. Das Verhalten der Kerne in Tapetum der Angiospermen mit besonderer Berücksichtigung von Endomitosen und sogenanten Endomitosen. Öst. Bot. Z. 99, 318-362.
• Carniel K. 1961. Das Antherentapetum von Zea mays. Öst. Bot. Z. 108, 89-96.
• Carniel K. 1963. Das Antherentapetum. Öst. Bot. Z. 110, 145-176.
• Chapman G. P. 1987. The tapetum. Int. Rev. Cyt. 107, 111-125.
• D ’ Amato F. 1984. Role of polyploidy in reproductive organs and tissues. In: Embryology of Angiosperms. Ed. Johri B. M., Springer Verlag. Berlin, London, New York, Tokyo, 519-566.
• Greilhuber J. 1974. Uncommon karyological features in the anther tapetum of some Pedicularieae (Scrophulariaceae). Caryologia 27, 169-182.
• Hesse M. and Hess M. W. 1993. Recent trends in tapetum research. A cytological and methodological review. Pl. Syst. Evol. (Suppl.) 7, 127-145.
• Małecka J. 1963. Studies in the mode of reproduction of the diploid endemic species Taraxacum pieninicum Pawł. Acta. Biol. Cracov., Ser. Bot. 4, 25-42.
• Nagl W. 1978. Endopolyploidy and polyteny in differentiation and evolution. North-Holland, Amsterdam, New York, Tokyo.
• Pacini E. 1990. Tapetum and microspore function. In: Microspores. Evolution and ontogeny. Ed. Blackmore S. and Knox R. B., Academic Press, London, 213-237.
• Pacini E. and Franchi G. G. 1991. Diversification and evolution of the tapetum. In: Pollen and spores. Ed. Blackmore S. and Barnes S. H., Systematic Association; Special Volume 44, Clarendon Press, Oxford, 301-316.
• Pacini E. and Franchi G. G. 1993. Role of the tapetum in pollen and spore dispersal. Pl. Syst. Evol. (Suppl.) 7, 1-11.
• Pacini E., Franchi G. G. and Hesse M. 1985. The tapetum: its form, function and possible phylogeny in Embryophyta. Pl. Syst. Evol. 149, 155-185.
• Pacini E. and Juniper B. E. 1983. The ultrastructure of the formation and development of the amoeboid tapetum in Arum italicum Miller. Protoplasma 117, 118-129.
• Pacini E. and Keijzer C. 1989. Ontogeny of intruding non-periplasmodial tapetum in the wild chicory, Cichorium intybus (Compositae). Pl. Syst. Evol. 167, 149-164.
• Perdue T. D., Loukides C. A. and Bedinger P. A. 1992. The formation of cytoplasmic channels between tapetal cells in Zea mays. Protoplasma 171, 75-79.
• Sawicka Z. 1991. Endoreduplication in amoeboid anther tapetum of Arum orientate Bieb. Acta Biol. Cracov., Ser. Bot. 33, 45-50.
• Skalińska M. 1958. Studies in the karyological differentiation of the tapetum in Valeriana officinalis L. Acta Biol. Cracov., Ser. Bot. 1, 45-54.
• Tiwari S. C. and Gunning B. E. S. 1986a. Development of tapetum and microspores in Canna L.: an example of an invasive but not syncytial tapetum. Ann. Bot. 57, 557-563.
• Tiwari S. C. and Gunning B. E. S. 1986b. Cytoskeleton, cell surface and the development of invasive plasmodial tapetum in Tradescantia virginiana L., Protoplasma 133, 89-99.
• Tiwari S. C. and Gunning B. E. S. 1986c. An ultrastructural, cytochemical and immunofluorescence study of postmeiotic development of plasmodial tapetum in Tradescantia virginiana L. and its revelance to the pathway of sporopollenin secretion. Protoplasma 133, 100-114.
• Tiwari S. C. and Gunning B. E. S. 1986d. Development and cell surface of a non-syncytial invasive tapetum in Canna: ultrastructural, freeze-substitution, cytochemical and immunofluorescence study. Protoplasma 134, 1-16.
• Trela Z. 1958. Cyto-histological processes during differentiation of the tapetal cells of Aconitum variegatum L. Acta Biol. Cracov., Ser. Bot. 1, 35-43.
• Tschermak-Woess E. 1967. Über das zweikernige endopolyploiden Antherentapetum von Rhinanthus. Phytomorphology 17, 188-195.
• Turała K. 1958. Endomitosis in the tapetal cells of Cucurbita pepo L. Acta Biol. Cracov., Ser. Bot. 1, 25-34.
• Turała K. 1963. Studies in endomitotical processes during the differentiation of the tapetal layer of the Cucurbitaceae. Acta Biol. Cracov., Ser. Bot. 6, 87-102.
• Turała K. and Urbańska-Worytkiewicz K. 1964. Cytological processes during the differentiation of the tapetal layer in Solanum dulcamara and S. nigrum. Acta Biol. Cracov., Ser. Bot. 7, 171-183.
• Turała-Szybowska K. 1984. Inhibited prophases in the differentiation of the anthers’ tapetum in Ranunculus fluitans Lam. Acta Biol. Cracov., Ser. Bot. 26, 33-42.
• Turała-Szybowska K. 1994. Syncytes in the secretory anthers’ tapetum of Ranunculus peltatus (Ranunculaceae). Polish Bot. Stud. 8, 23-30.
• Wcisło H. 1970. Karyological studies in Polish representatives of Spadiciflorae. Acta Biol. Cracov., Ser. Bot. 13, 79-88.