Summary
Secretory cavities ofCitrus deliciosa seem to originate from a pair of meristematic cells (an epidermal cell and a second one placed under it). These cells undergo successive divisions resulting in the formation of a globular/oval gland situated in the parenchyma, and a conical stalk, which joins the gland with the epidermis. The young gland consists of a central group of polyhedral cells ensheathed by layers of radially flattened cells.
During the early differentiation stages of the gland cells a close association of cytoplasmic microtubules with various organelles is observed. Plastids increase progressively in number and size and their matrix locally contains tubular networks accompanied by small oil droplets. In peripheral cytoplasm numerous myelin-like lomasomes have been observed. Peripheral cells of the gland are gradually modified from the inner cells following a different developmental pattern. Their walls become thicker and plastids do not contain tubular complexes, but only a few thylakoids partly surrounding the newly formed starch grains.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Amelunxen, F., Arbeiter, H., 1967: Untersuchungen an den Spritzdrüsen vonDictamnus albus L. Z. Pflanzenphysiol.58, 49–69.
Bosabalidis, A., Tsekos, L., 1982: Ultrastructural studies on the secretory cavities ofCitrus deliciosa Ten. II. Development of the essential oil-accumulating central space of the gland and process of active secretion. Protoplasma112, 63–70.
Davies, B. H., 1977: Carotenoids in higher plants. In: Lipids and lipid polymers in higher plants (Tevini, M., Lichtenthaler, H. K., eds.), pp. 199–217. Berlin-Heidelberg-New York: Springer.
Fahn, A., Benayoun, J., 1976: Ultrastructure of resin ducts inPinus halepensis. Development, possible sites of resin synthesis, and mode of its elimination from the protoplast. Ann. Bot.40, 857–863.
Falk, H., 1969: Lomasomen? Ber. dtsch. bot. Ges.82, 427–429.
Fohn, M., 1935: Zur Entstehung und Weiterbildung der Exkreträume vonCitrus medica L. undEucalyptus globulus Lab. Österr. bot. Z.84, 198–209.
Frank, A. B., 1883: Synopsis der Pflanzenkunde, Hannover.
Franke, W. W., 1971: Cytoplasmic microtubules linked to endoplasmic reticulum with cross-bridges. Exp. Cell Res.66, 486–489.
Heinrich, G., 1966: Licht- und elektronenmikroskopische Untersuchungen zur Genese der Exkrete in den lysigenen Exkreträumen vonCitrus medica. Flora156, 451–456.
—, 1969: Elektronenmikroskopische Beobachtungen zur Entstehungsweise der Exkretbehälter vonRuta graveolens, Citrus limon undPoncirus trifoliata. Österr. bot. Z.117, 397–403.
—, 1970: Elektronenmikroskopische Beobachtungen an den Drüsenzellen vonPoncirus trifoliata; zugleich ein Beitrag zur Wirkung ätherischer Öle auf Pflanzenzellen und eine Methode zur Unterscheidung flüchtiger von nichtflüchtigen lipophilen Komponenten. Protoplasma69, 15–36.
—, 1979: Zur Cytologie und Physiologie ätherische Öle erzeugender pflanzlicher Drüsenzellen. In: Vorkommen und Analytik ätherischer Öle (Kubeczka, K.-H., ed.), S. 41–57. Stuttgart: Georg Thieme.
—,Schulze, W., Wegener, R., 1980: Zur Kompartimentierung der Synthese von Mono- und Sesquiterpenen des ätherischen Öls beiPoncirus trifoliata. Protoplasma103, 115–129.
Kaussmann, B., 1963: Pflanzenanatomie. Fischer.
Leech, R. M., 1968: The chloroplast inside and outside the cell. In: Plant cell organelles (Pridham, J. B., ed.), pp. 137–162. London-New York: Academic Press.
Levering, C. A., Thomson, W. W., 1971: The ultrastructure of the salt gland ofSpartina foliosa. Planta97, 183–196.
Lutz, G., 1895: Über die oblito-schizogenen Sekretbehälter der Myrtaceen. Bot. Centralblatt64, 145–153, 193–202, 257–264, 289–303.
Marchant, R., Moore, R. T., 1973: Lomasomes and plasmalemmasomes in fungi. Protoplasma76, 235–247.
Moline, H. E., Lamotte, C. E., Gochnauer, C., McNamer, A., 1972: Further comparative studies of pectin esterase in relation to leaf and flower abscission. Plant Physiol.50, 655–659.
Nakai, Y., Ushiyama, R., 1978: Fine structure of shiitakeLentinus edodes. VI. Cytoplasmic microtubules in relation to nuclear movement. Can. J. Bot.56, 1206–1211.
Niedermeyer, W., Parish, G. R., Moor, H., 1977: Reactions of yeast cells to glycerol treatment. Alterations to membrane structure and glycerol uptake. Protoplasma92, 177–193.
Rauter, J., 1871: Zur Entwicklungsgeschichte einiger Trichom-gebilde. Denkschrift d. Wiener Akad. d. Wiss. Bd.31.
Schnepf, E., 1969 a: Über den Feinbau von Öldrüsen. I. Die Drüsenhaare vonArctium lappa. Protoplasma67, 185–194.
—, 1969 b: Über den Feinbau von Öldrüsen. II. Die Drüsenhaare in Calceolaria-Blüten. Protoplasma67, 195–203.
—, 1969 c: Über den Feinbau von Öldrüsen. IV. Die Ölgänge von Umbelliferen:Heracleum sphondylium undDorema ammoniacum. Protoplasma67, 375–390.
—, 1974: Gland cells. In: Dynamic aspects of plant ultrastructure (Robards, A. W., ed.), pp. 331–357. Maidenhead, Berkshire: McGraw-Hill.
Sprecher, E., 1956: Beiträge zur Frage der Biogenese sekundärer Pflanzenstoffe der Weinraute (Ruta graveolens L.) Planta47, 323–358.
Thomson, W. W., Platt-Aloia, K., Endress, A. G., 1976: Ultrastructure of oil gland development in the leaf ofCitrus sinensis L. Bot. Gaz.137, 330–340.
Treharne, K. J., Mercer, E. I., Goodwin, T. W., 1966: Incorporation of (14C) carbon dioxide and (2-14C) mevalonic acid into terpenoids of higher plants during chloroplast development. Biochem. J.99, 239–245.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bosabalidis, A., Tsekos, I. Ultrastructural studies on the secretory cavities ofCitrus deliciosa ten. I. Early stages of the gland cells differentiation. Protoplasma 112, 55–62 (1982). https://doi.org/10.1007/BF01280215
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01280215