Abstrakt
Tilia cordata is a good source of food attractants for bees. These insects are the primary pollinators of flowers of this species. Nectar is produced in the floral trichomatous nectaries located on a projection of the adaxial, basal part of the sepals. There were two types of non-glandular hairs on the sepals; the first one to prevent the nectar from flowing out beyond the sepal and the other type to protect the nectary itself. The clavate secretory trichomes, forming dense clusters, are composed of a base, stalk, and multicellular head. The secretory cells of the trichome head contain a thick cytoplasm and a large nucleus; they are also characterized by a low degree of vacuolation. Nectar accumulates at the tip of the trichome in the space formed between the cell wall of the head cells and the
cuticle. The several-layered subepidermal glandular parenchyma with densely packed cells is provided with vascular bundles containing xylem and phloem. Plastids containing small starch grains were noticed in many cells of the nectariferous tissue, whereas phenolic compounds were found in the adaxial epidermal cells of the sepals. No presence of starch, lipids, or phenolic compounds was found in the cells of the glandular hairs. However, numerous chloroplasts, calcium oxalate crystals and large mucilage cavities occurred in the subglandular tissue.
Bibliografia
Celka Z., Szkudlarz P., Biereżnoj U., 2006. Morphological variation of hairs in Malva alcea L. (Malvaceae). Biodiv. Res. Conserv. 3–4, 258–261.
Crane E., Walker P., Day R., 1984. Directory of important world honey sources. International Bee Research Association, London, 384.
Craven L.A., Miller C., White R.G., 2006. A new name, and notes on extra-floral nectarines, in Lagunaria (Malvaceae, Malvoideae). Blumea 5, 345–353.
Czubacki W., 1996. Niektóre szczegóły biologii kwitnienia i nektarowania lip (Tilia platyphyllos Scop. i Tilia cordata Mill.). Pszeln. Zesz. Nauk. 40 (1), 15–26.
Endress P.K., 1994. Diversity and evolutionary biology of tropical flowers. Cambridge, USA.
Ferreres F., Andrade P., Gil M.I., Tomas-Barberan F.A., 1996. Floral nectar phenolics as biochemical markers for the botanical origin of heather honey. Z. Lebensm. Unters. Forsch. 202, 40–44.
Findlay N., Mercer F.V., 1971. Nectar production in Abutilon 1. Movement of nectar through the cuticle. Aust. J. Biol. Sci. 24, 647–656.
Goldberg L., 2009. Patterns of nectar production and composition, and morphology of floral nectaries in Helicteres guazumifolia and Helicteres baruensis (Sterculiaceae): two sympatric species from the Costa Rican tropical dry forest. Rev. Biol. Trop. (Int. J. Trop. Biol.) 57 (1), 161–177.
Gunning B.E.S., Hughes J.E., 1976. Quantitative assessment of symplastic transport of pre-nectar into the trichomes of Abutilon nectaries. Aust. J. Bot. 3, 619–637.
Győr T., 2001. A hárs méhészeti jelentősége. Méhészet 49 (12), 10.
Halmágyi L., 1975. Egyéb erdeiés díszfák, cserjék. [In:] Halmágyi L., Keresztesi B. (eds), A Méhlegelő, Akadémiai Kiadó, Budapest, 334–459.
Jabłoński B., Kołtowski Z., 1999. Nektarowanie różnych gatunków i mieszańców lipy (Tilia L.). Pszeln. Zesz. Nauk. 43, 279–290.
Judd W.S., Manchester S.R., 1997. Circumscription of Malvaceae (Malvales) as determined by a preliminary cladistic analysis of morphological, palynological, and chemical characters. Brittonia 49 (3), 384–405.
Kevan P.G., Baker H. G., 1983. Insects as flower visitors and pollinators. Ann. Rev. Entomol. 28, 407–453.
Kohlmünzer S., 2000. Farmakognozja. Wyd. Lekarskie PZWL, Warszawa.
Kołtowski Z., 2006. Wielki atlas roślin miododajnych. Przedsiębiorstwo Wyd. Rzeczpospolita SA.
Kronestedt E.C., Robards A.W., Stark M., Olsen P., 1986. Development of trichomes in the Abutilon nectary gland. Nord. J. Bot. 6, 627–639.
Leitão C.A.E., Meira R.M.S.A., Azevedo A.A., Araújo J.M., 2002. Ontogenia dos nectários extraflorais de Triumfetta semitriloba (Tiliaceae). Planta Daninha 20 (3), 343–351.
Leitão C.A.E., Strozi Alves R.M., Alves Azevedo A., De Araújo J.M., Ferreira Silva K.L., Collevatti R.G., 2005. Anatomy of the floral, bract, and foliar nectaries of Triumfetta semitriloba (Tiliaceae). Can. J. Bot. 83 (3), 279–286.
Lipiński M., 2010. Pożytki pszczele. Zapylenie i miododajność roślin. PWRIL, Warszawa.
Maksymiuk I., 1960. Nektarowanie lipy drobnolistnej Tilia cordata Mill. w rezerwacie Obrożyska kolo Muszyny. Pszczeln. Zesz. Nauk. 2, 105–124.
Nicolson S.W., Nepi M., 2005. Dilute nectar in dry atmospheres: Nectar secretion patterns in Aloe castanea (Asphodelaceae). Int. J. Plant Sci. 166, 227–233.
Nicolson S.W., Nepi M., Pacini E., 2007. Nectaries and nectar. Springer, Dordrecht.
Nobel P.S., Cavelier J., Andrade J.L., 1992. Mucilage in cacti: Its apoplastic capacitance, associated solutes, and influence on tissue water relation. J. Exp. Bot. 43, 641–648.
Ożarowski A., Jaroniewski W., 1989. Rośliny lecznicze i ich praktyczne zastosowanie. IWZZ, Warszawa.
Pacini E., Nepi M., Vesprini J., 2003. Nectar biodiversity: a short review. Plant Syst. Evol. 238, 7–21.
Pogorzelec M., 2006. Rośliny miododajne. Wyd. Gospodarstwo Pasieczne „Sądecki Bartnik”, Nowy Sącz.
Rachmilevitz T., Fahn A., 1975. The floral nectar of Tropaeolum majus L. The nature of the secretory cells and the manner of nectar secretion. Ann. Bot. 39, 721–728.
Rocha J.F., Machado S.R., 2009. Anatomy, ultrastructure and secretion of Hibiscus pernambucensis Arruda (Malvaceae) extrafloral nectar. Revista Brasil. Bot. 32 (3), 489–498.
Rocha J.F., Neves L.J., Pace L.B., 2002. Estruturas secretoras em folhas de Hibiscus tiliaceus L. e Hibiscus pernambucensis Arruda. Rev. Universidade Rural, Serie Ciencias de Vida 22, 43–55.
Sawidis T.H., 1991. A histochemical study of nectaries of Hibiscus rosa-sinensis. J. Exp. Bot. 24, 1477–1487.
Sawidis T.H., 1998. The subglandular tissue of Hibiscus rosa-sinensis nectaries. Flora 193, 327–335.
Sawidis T.H., Eleftheriou E.P., Tsekos I., 1987a. The floral nectaries of Hibiscus rosa-sinensis. I. Development of the secretory hairs. Ann. Bot. 59, 643–652.
Sawidis T.H., Eleftheriou E.P., Tsekos I., 1987b. The floral nectaries of Hibiscus rosa-sinensis L. II. Plasmodesmatal frequencies. Phyton (Austria) 27, 155–164.
Shanmukha R.S.R., 1991. Structure and distribution of plant trichomes in relation to taxonomy: Hibiscus L. J. Bot. Taxon. Geobot., Feddes Repert. 102, 335–344.
Shanmukha R.S.R., Ramayya N., 1987. Trichome type and their taxonomic importance in the Tiliaceae. Indian J. Bot. 10, 65–73.
Stpiczyńska M., Davies K.L., Gregg A., 2005.Comparative account of nectary structure in Hexisea imbricata (Lindl.) Rchb. f. (Orchidaceae). Ann. Bot. 95, 749–756.
Szweykowska A., Szweykowski J., 2003. Słownik botaniczny. Wiedza Powsz., Warszawa.
Vogel S., 2000. The floral nectaries of Malvaceae sensu lato – a conspectus. Kurtziana 28, 155–171.
Wagenitz G., Laing B., 1984. The nectarines of the Dipsacales and their systematic significance. Bot. Jahrb. Syst. 104, 483–507.
Weryszko-Chmielewska E., Chwil M., Michońska M., 2007. Micromorphology of nectaries of Rhododendron catawbiense Michx. at different flower developmental stages. Acta Agrobot. 60 (2), 15–22.
Weryszko-Chmielewska E., Konarska A., 2006. Micromorphology of Sorbus intermedia Pers. nectary surface in different phases of blooming. Acta Agrobot. 59 (1), 49–59.
Weryszko-Chmielewska E., Bożek M., 2008. Structure of trichomatous nectaries in flowers of Lonicera kamtschatica (Sevast.) Pojark. Acta Agrobot. 61 (1), 13–26.
Wunnachit W., Jenner C.F., Sedgley M., 1992. Floral and extrafloral nectar production in Anacardium occidentale L. (Anacardiaceae): an andromonoecious species. Int. J. Plant Sci. 153, 413–420.
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