Abstract
The shoot apex ofNymphaea stellata Willd. shows a tunica-corpus organization with a cytohistological zonation. The tunica is single-layered and the corpus exhibits three zones, the corpus mother cells zone, the flanking zone and the pith-rib meristem zone. The plastochron is divided into five stages based on the plastochron index—the minimal, early post-minimal, late post-minimal, pre-maximal and maximal. A cambium-like zone is developed proximal to the corpus mother cells zone in apices at the post-minimal stages, which contributes to the increase in height of the apex.
The root apex shows a transversal meristem, which is in the form of a curved plate of cells. This cell plate gives rise to the central cylinder, cortex and epidermis proximally, and the columella and periheral region of the root cap distally.
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References
Ball, E., Development in sterile culture of stem tips and subjacent regions ofTropaeolum majus L. andLupinus albus L.Amer. J. Bot. 33 301–318 (1946).
Ball, E., The shoot apex and normal plant ofLupinus albus L., bases for experimental morphology.Amer. J. Bot. 36 440–454 (1949).
Ball, E., Cell divisions in living shoot apices.Phytomorphology 10 377–396 (1960).
*Buvat, R., Structure, evolution et fonctionnement du meristeme apical de quelques dicotyledons.Ann. Sci. Nat. Bot. 11 (13) 199–300 (1952).
*Camefort, H., Etude de la structure du point vegetatif et des variations phyllotaxiques chez quelques Gymnospermes.Ann. Sci. Nat. Bot. 11 (17) 1–185 (1956).
Clowes, F. A. L., Adenine incorporation and cell division in shoot apices.New Phytol. 58 16–19 (1959).
Esau, Katherine,Plant Anatomy, John Wiley and Sons, London (1953).
Foster, A. S., Structure and growth of the shoot apex inGinkgo biloba.Bull. Torrey Bot. Club 65 531–556 (1938).
Gifford, E. M. Jr. The structure and development of the shoot apex in certain woody Ranales.Amer. J. Bot. 37 595–611 (1950).
Gifford, E. M. Jr., The shoot apex in angiosperms.Bot. Rev. 20 477–529 (1954).
Gifford, E. M. Jr. and Corson, G. E. Jr., The shoot apex in seed plants.Bot. Rev. 37 143–229 (1971).
Gregory, R. A. and Romberger, J. A., The shoot apical ontogeny of thePicea abies seedling—I.Amer. J. Bot. 59 587–597 (1972).
Johansen, D. A.,Plant Microtechnique. McGraw Hill Book Co., New York (1940).
Johnson, M. A. and Tolbert, R. J., The shoot apex inBombax. Bull. Torrey Bot. Culb 173–186 (1960).
*Lance, A., Recherches cytologiques sur l’evolution de quelques meristemes apicaux et sur ses variations provoques par des traitments photoperiodiques.Ann. Sci. Nat. Bot. 11 (18) 91–422 (1957).
*Neumann, O., Über die bildung der Wurzelhaube beiJuglans, Mimosa undLupinus.Planta 30 1–20 (1939).
Newman, I. V., Patterns in meristems of vascular plants. I. Cell partition in living apices and in the cambial zone in relation to the concepts of initial cells and apical cells.Phytomorphology 6 1–19 (1956).
Paolillo, D. J. Jr. and Gifford, E. M. Jr., Plastochronic changes and the concept of apical initials inEphedra altissima.Amer. J. Bot. 48 8–16 (1961).
Pillai, Ambuja and Mehra, Arunadevi, Some aspects of the anatomy ofTecoma stans.Proc. Indian Acad. Sci. 77B 64–77 (1973).
Pillai, S. K. and Pillai, Ambuja, Root apical organization in monocotyledons—Cannaceae.J. Indian Bot. Soc. 40 645–656 (1961).
Pillai, S. K. and Sukumaran, K., Embryogeny, Histogenesis and Apical meristems ofCyamopsis tetragonoloba.Phytomorphology 19 303–312 (1969).
Plantefol, L., Helices foliares, point vegetatif, et stele chez dicotyledons. La notion d’anneau initial.Rev. Gen. Bot.,54 49–80 (1947).
Popham, R. A., Zonation of primary and lateral root apices ofPisum sativum.Amer. J. Bot. 42 267–273 (1955).
Popham, R. A., Principal types of vegetative shoot apex organization in vascular plants.Ohio J. Sci. 249–270 (1951).
Popham, R. A., Cytogenetics and zonation in the shoot apex ofChrysanthemum morifolium.Amer. J. Bot. 45 198–206 (1958).
Popham, R. A. and Chan, A. P., Zonation of the vegetative stem tip ofChrysanthemum morifolium.Amer. J. Bot. 37 476–484 (1950).
Ramji, M. V., The structure of the shoot apex and leaf initiation inPolyalthia longifolia.Proc. Indian Acad. Sci. 51 B 227–241 (1960).
Ramji, M. V., Ontogenetic studies inSarcandra irvingbeyleyii Swamy I. The structure of the shoot apex and ontogeny of leaf.Proc. Indian Acad. Sci. 53 B 20–35 (1961).
*Schade, C. and Guttenberg, H. von., Über die Entwicklung des Wurzelve-getationspunktes der Monokotyledonen.Planta 40 170–198 (1951).
Schopf, J. M., The embryology ofLarix.Illinois Biol. Monogr. 19 3–97.
Spurr, A. R., Histogenesis and organization of the embryo inPinus strobus.Amer. J. Bot. 36 629–641 (1949).
Soma, K., Morphogenesis in the shoot apex ofEuphorbia lathyrus.J. Fac. Sci. Univ. Tokyo III Bot. 7 199–256 (1958).
Tepfer, S. S., The shoot apex and early leaf development inClematis.Amer. J. Bot. 47 655–664 (1960).
*Tiegs, E. Beitrage zur kenntnis der Enstehung und des Wachsthums der einiger leguminossen.Jb. Wiss. Bot. 52 622–646 (1913).
Torrey, J. G., On the determination of vascular patterns during tissue differentiation in excised roots.Amer. J. Bot. 42 183–198. (1955).
Trivedi, M. L., Shoot apical organization and development of leaf and axillary bud inCapparis decidua.Proc. Indian Acad. Sci. 69 B 241–251 (1969).
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Pillai, A., Kavathekar, K.Y. Apical meristems inNymphaea stellata Willd. Proc. Indian Acad. Sci. 81, 91–100 (1975). https://doi.org/10.1007/BF03050749
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DOI: https://doi.org/10.1007/BF03050749