Abstract
Pollen isolated from cold treated and precultivated anthers of tobacco (Nicotiana tabacum L. var. Wisconsin 38) were separated into different fractions with counter-current distribution using an aqueous Dextran-polyethylene glycol two-phase system. It was possible to distinguish among eight pollen classes differing in developmental stage and in partitioning. A part of each fraction was cultivated for analysis of embryo formation. This was highest in a fraction with an intermediate to high partition in the phase system. Enriched in this fraction were also pollen that were fairly well stained with acetocarmine, contained several nuclei and had a relatively low mitochondrial activity. The enrichment of embryogenic pollen offers several advantages especially to physiological studies on embryogenesis.
Similar content being viewed by others
References
Albertsson P-Å, Andersson B, Larsson C, Akerlund H-E (1982) Phase Partition: A Method for purification and analysis of cell organelles and membrane vesicles. In: Glick D (ed) Methods of Biochemical analysis, 28 London, New York: An Interscience Publication, John Wiley & sons, pp 115–150
Appelmans F, Wattiaux R, de Duve C (1955) Tissue fractionation studies. 5. The association of acid phosphatase with a special class of cytoplasmic granules in rat liver. Biochem J 59:248–254
Bearden JCJr (1978) Quantitation of submicrogram quantities of protein by an improved protein-dye binding assay. Biochim Biophys Acta 533:525–529
Craig LC, Craig D (1956) Laboratory extraction and counter-current distribution. In: A Weissberger, (ed.) Technique of Organic Chemistry, Vol III, Part I, 2nd ed. London, New York: Interscience, pp 149–332
Guha S, Maheshwari SC (1964) In vitro production of embryos from anther cultures of Datura. Nature 204:497
Heberle-Bors E, Reinert J (1980) Isolated pollen cultures and pollen dimorphism. Naturwissenschaften 67:311–312
Horner M, Street HE (1978) Pollen dimorphism: Origin and significance in pollen plant formation by anther culture. Ann Bot 42:763–771
Maheshwari SC, Tyagi AK, Malhotra K (1980) Induction of haploidy from pollen grains in angiosperms: The current status. Theor Appl Genet 58:193–206
Maheshwari SC, Rashid A, Tyagi AK (1982) Haploids from pollen grains: Retrospect and prospect. AM J Bot 69:865–879
Nitsch C, Norreel B (1973) Effet d'un choc thermique sur le pouvoir embryogéne du pollen de Datura innoxia cultivé dans l'anthere. CR Acad Sci Paris 276:303–306
Nitsch JP (1969) Experimental androgenesis in Nicotiana. Phytomorphology 19:389–404
Rashid A (1983) Pollen dimorphism in relation to pollen plant formation. Physiol Plant 58:544–548
Rashid A, Reinert J (1980) Selection of embryogenic pollen from cold-treated buds of Nicotiana tabacum var. Badischer Burley and their development into embryos in cultures. Protoplasma 105: 161–167
Rashid A, Reinert J (1981) High frequency embryogenesis in ab initio pollen cultures of Nicotiana tabacum. Naturwissenschaften 68:378–379
Rashid A, Reinert J (1983) Factors affecting high-frequency embryo formation in ab initio pollen cultures of Nicotiana. Protoplasma 116:155–160
Rashid A, Siddiqui AW, Reinert J (1982) Subcellular aspects of origin and structure of pollen embryos of Nicotiana. Protoplasma 113:202–208
Sangwan-Norreel BS (1977) Androgenic stimulating factors in the anther and isolated pollen grain culture of Datura innoxia Mill. J Exp Bot 28:943–952
Sunderland N, Wicks FM (1971) Embryoid formation in pollen grains of Nicotiana tabacum. J Exp Bot 22:213–226
Wernicke W, Harms CT, Lörz H, Thomas E (1978) Selective enrichment of embryogenic microspore populations. Naturwissenschaften 65:540–541
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mårtensson, B.K., Widell, S. Separation of precultured pollen from Nicotiana tabacum by aqueous polymer two-phase partition. Plant Cell Tiss Organ Cult 8, 27–35 (1987). https://doi.org/10.1007/BF00040730
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00040730