Abstract
Preheating and heated teliospore extracts have been found to be stimulatory to germination of the teliospores of ten different smut fungi used in this study. The effect is mostly on the percentage of germination.
Maximum per cent of spore germination was observed at higher concentrations of glucose and sucrose solutions. The percentage of germination of spores of the species included was more in sucrose than in glucose. Most of the vitamins of B-complex groups stimulated the initiation of germ tube.
Many of the growth regulators tried, except 2,4-dichlorophenoxy acetic acid have a stimulatory effect on teliospore germination. Higher percentage of teliospore germination was noticed in the case of gibberellic acid, followed by indole 3-acetic acid, beta-indole butyric acid and alphanaphthalene acetic acid.
Ethylenediamine tetraacetic acid, furfural, fumaric acid, oxalic acid and citric acid were also stimulatory, in that order.
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References
Allen P J 1957 Properties of a volatile fraction from uredospores ofPuccinia graminia var.tritici affecting their germination and development. I. Biological activity;Plant Physiol. 32 385–389
Cooper W C 1939 Vitamins and germination of pollen grains and fungal spores;Bot. Gaz. 100 844–852
Evans F R and Curran H R 1943 The accelerating effect of sublethal heat on spore germination in mesophylic aerobic bacteria;J. Bacteriol. 46 513–523
French R C 1961 Stimulation of germination in wheat stem rust by terpenes and related compounds;Bot. Gaz. 122 194–198
French R C 1962 Interaction of aldehydes with uredospores of stem rust of wheat;Bot. Gaz. 124 121–128
French R C, Graham C L, Gale A W and Long R K 1977 Structural and exposure time requirements for chemical stimulation of germination of uredospores ofUromyces phaseoli;J. Agric. Food Chem. 25 84–88
French R C, Long R K, Latterell F M, Graham C L, Smoot J J and Shaw P E 1978 Effect of nonanal, citral, and citrus oils on germination of conidia ofPenicillium digitatum andPenicillium italicum;Phytopathology 68 877–882
Fischer G W and Holton C S 1957Biology and control of the smut fungi (New York: Ronald Press)
Goddard D R and Smith P E 1938 Respiratory block in the dormant spores ofNeurospora tetrasperma;Plant Physiol. 13 241–264
Lin C K 1945 Nutrient requirements in the germination of the conidia ofGlomerella cingulataAm. J. Bot. 32 296–298
Lilly V G and Barnett H L 1951Physiology of the fungi. (New York: McGraw-Hill) pp 1–464
Noble R J 1924 Studies on the parasitism ofUrocystis tritici the causal organism of Flag smut of wheat;J Agric. Res. 27 451–489
Naito T and Tani T 1951 On the influence of phytochromes on the germination of uredospores of rust fungi;Tech. Bull. Kage. Wacken. Agric. Coll. 2 167–177
Pall B S 1968 A comparative study of germination of spores ofSphacelotheca cruenta (Kuhn) Potter andUstilago cynodontis P.;Henn. Sci. Cult. 34 304–305
Peterson B 1951 Effect of growth promoting substance on the germination of uredospores of crown rust;Phytopathol. 41 1039–1040
Saxena S K and Khan A M 1971 Effect of carbon sources on germination of chlamydospores ofUstilago scitaminea Syd.Mycopathol;Mycol. Appl. 43 317–322
Scarles R B and French R C 1964 Conversion of furfural and cinnamaldehyde by uredcspores of wheat stem rust and associated bacteria;Bot. Gaz. 125 146–148
Schauz K 1968 The role of light in spore germination and sporidial production of the wheat smut fungiTilletia caries (DC) Tul;Arch. Mikrobiol. 60 111–123
Shear C L and Dodge B O 1927 Life histories and heterothallism of the bread-mold fungi ofMonilia sitophila group;J. Agric. Res. 34 1019–1042
Singh Pritam 1965 Studies on the stimulation of conidial germination inCollectotrichum falcatum Went;Indian Phytopathol. 18 291–302
Singh Pritam 1966 Studies on the effect of certain nutrients on the conidial germination inCollectotrichum falcatum;Indian Phytopathol. 19 30–37
Smart R F 1937 Influence of certain external factors on spore germination in the Myxomycetes;Am. J. Bot. 24 145–159
Sussman A S 1953 The effect of heterocyclic and other compounds upon germination of ascospores ofNeurospora tetrasperma;J. Gen. Microbiol. 8 211–216
Sussman A S 1954 Changes in the permeability of ascospores ofNeurospora tetrasperma during germination;J. Gen. Physiol. 38 59–77
Sussman A S 1966 inThe fungus spore ed. M F Madelin,Proc. 18th Symp. Colston Res. Soc. (London: Butterworths) pp 235–257
Thirumalachar M J 1940 A method for germinating and staining teleutospores;J. Indian Bot. Soc. 19 71–75.
Wei C T and Ling K C 1948 The effect of 2,4-dichlorophenoxyacetic acid on the spore germi nation of fungi;Bot. Bull. Acad. Sin. 2 275–281
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The work reported herein is a part of the thesis submitted by the senior author for Ph.D. degree at the University of Mysore (1974).
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Shetty, H.S., Safeeulla, K.M. Stimulation of teliospore germination in smut fungi. Proc. Indian Acad. Sci. 88, 479–486 (1979). https://doi.org/10.1007/BF03046138
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DOI: https://doi.org/10.1007/BF03046138