Summary
The development of the neoplasm of the pea pod has been examined by electron microscopy. The subsidiary cells of the stomata are the site of neoplastic development, and the earliest signs of tumour growth are the accumulation of lipid material in these cells and a decrease in the degree of their vacuolation. Mitosis in these cells gives rise to a population of neoplastic cells similar in structure to normal parenchyma. The only structural abnormality which persists in mature neoplastic tissue is the degeneration of the plastids. The chloroplasts of the original subsidiary cells undergo a continuous series of degenerative changes involving loss of photosynthetic function. The mode of development of the neoplasm and the ultrastructural changes associated with it are discussed in relation to other plant tumours.
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References
Allaway, W. G., andG. Setterfield, 1972: Ultrastructural observations on guard cells ofVicia faba andAllium porrum. Canad. J. Bot.50, 1404–1413.
Ames, I. H., 1972: The fine structure of genetic tumour cells. Amer. J. Bot.59, 341–345.
Burgess, J., 1970: Microtubules and cell division in the microspore ofDactylorchis fuschii. Protoplasma69, 153–264.
Dodds, K. S., andP. Matthews, 1966: Neoplastic pod in the pea. J. Hered.57, 83–85.
Gee, M. M., C. N. Sun, andJ. D. Dwyer, 1967: An electron microscope study of sunflower crown gall tumour. Protoplasma64, 195–200.
Gerola, F. M., andM. Bassi, 1966: An electron microscopy study of leaf vein tumours from maize plants experimentally infected with maize rough dwarf virus. Caryologia19, 13–40.
Jones, M. G. K., andD. H. Northcote, 1972: Nematode induced syncytium—a multinucleate transfer cell. J. Cell Sci.10, 789–809.
Kaufman, P. B., L. B. Petering, C. S. Yocum, andD. Baic, 1970: Ultrastructural studies on stomata development in internodes ofAvena sativa. Amer. J. Bot.57, 33–49.
Lipetz, J., 1967: Fine structure studies of plant tumour cells. J. Cell Biol.35, 82 A.
, 1968: Changes in the endoplasmic reticulum of plant tumour cells. J. Cell Biol.39, 81 A-82 A.
, 1970: The fine structure of plant tumours. I. Comparison of crown gall and hyperplastic cells. Protoplasma70, 207–216.
Manocha, M. S., 1970: Fine structure of sunflower crown gall tissue. Canad. J. Bot.48, 1455–1458.
Nuttall, V. W., andL. H. Lyall, 1964: Inheritance of neoplastic pod in the pea. J. Hered.55, 184–186.
Pallas, J. E., andH. H. Mollenhauer, 1972: Physiological implications ofVicia faba andNicotiana tabacum guard-cell ultrastructure. Amer. J. Bot.59, 504–514.
Snoad, B., andP. Matthews, 1969: Neoplasms of the pea pod. In: Chromosomes Today. Volume 2(C. D. Darlington andK. R. Lewis, eds.), pp. 126–131. Edinburgh: Oliver and Boyd Ltd.
Srivastava, L. M., andA. P. Singh, 1972: Stomatal structure in corn leaves. J. Ultrastruct. Res.39, 345–363.
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Burgess, J., Fleming, E.N. The structure and development of a genetic tumour of the pea. Protoplasma 76, 315–325 (1973). https://doi.org/10.1007/BF01279129
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DOI: https://doi.org/10.1007/BF01279129