Abstract
With the aid of radioactive phosphorus and gamma rays from Cobalt60, a number of biochemical mutants were obtained which showed deficiency for amino acids like methionine, leucine and cystine and vitamins like biotin and thiamine. These biochemical mutants could not be distinguished from the wild type when grown on complete or otherwise suitably supplemented media. Pathogenicity tests of some of these biochemical mutants showed that all the five mutants tested are pathogenic on guava variety Allahabad Safeda, though these showed deficiency for different growth factors.
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References
Bajaj, B. S., Chatrath, M. S. &Vasudeva, R. S. (1965) Mutation inColletotrichum falcatum Went. the causal organism of red rot of sugarcane. V. Pathogenicity of biochemical mutants.Indian Phytopath. 18:133–38.
Buddenhagen, I. W. (1957) Ultraviolet and X-ray induced mutation inPhytophthora cactorum (abs.)Phytopathology 47:517.
Buddenhagen, I. W. (1958) Induced mutations and variability inPhytophthora cactorum.Am. J. Bot. 45:355–65.
Chatrath, M. S., Raychaudhuri, S. P. &Gupta, J. P. (1971) Irradiation induced physiological and morphological variation inColletotrichum capsici, incitant of anthracnose of chillies.Mycopath. Mycol. Appl. 43,217–22.
Dutta, S. K., Hall, C. V. &Heyne, E. G. (1960) Pathogenicity of biochemical mutants ofColletotrichum lagenarium.Bot. Gaz. 122:166–70.
Gossop, G. H., Yill, E. &Yill, J. L. (1940) Heterogeneous fructification in species ofAspergillus.Trans. Br. Mycol. Soc. 24:337–44.
Gupta, J. P. &Chatrath, M. S. (1969) Effect of inoculum on growth and sporulation ofColletotrichum gloeosporioides.Indian J. Microbiol. 9:27–28.
Gupta, J. P. &Chatrath, M. S. (1973) Gamma radiation for the control of post harvest fruit rot of guava (Psidium guajava L.).Indian Phytopath. (accepted for publication).
Johnson, T. (1960) Genetics of pathogenicity. Plant Pathology: An advanced Treatise. (Ed.)J. G. Horsfall &A. E. Dimond. Vol. II. Chapter II: 407–60.
Keitt, G. W., Boone, D. M. &Shay, J. R. (1959) Genetic and nutritional control of host parasite interaction on apple scab. Plant Pathology; Problems and Progress Ed.Holten and others. Univ. of Wisconsin Press.
Loprieno, H. R., Gugllielminetti &Michel, E. (1964) Investigations on tomato anthracnose.Phytopath. Z. 170–76.
Messiaen, C. M. (1955) Sur quelques anthracnoses des plants cultivés (on some anthracnose of cultivated plants)Ann. Instt. Rech. Agron. C, 6:285–99.
Perkins, D. D. (1949) Biochemical mutants in the smut fungusUstilago maydis.Genetics 34:607–26.
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Gupta, J.P., Chatrath, M.S. Radiation induced biochemical mutation in Colletotrichum gloeosporioides penz. causing anthracnose of guava (psidium guajava L). Mycopathologia et Mycologia Applicata 51, 217–221 (1973). https://doi.org/10.1007/BF02141113
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DOI: https://doi.org/10.1007/BF02141113