HOST RESISTANCE IN COCONUT LEAVES AGAINST LEAF BLIGHT DISEASE CAUSED BY PESTALOTIOPSIS PALMARUM (COOKE) STEY
Keywords:
Host Resistance, Coconut Leaves
Abstract
Total and Ortho dihydroxy were more in younger coconut leaves as compared to the older leaves. Seven phenolic compounds were detected in younger leaves while the older leaves had only six phenolic compounds except chlorogenic acid Phenolic compounds inhibited the mycelial growth and Sporulation of P. palmarum. The quantity of sugars, starch and cellulose were lesser in younger leaves. Carbohydrates increased the mycelial growth and sporulation of the pathogen.
References
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Sandulescu, C. And Raju, T. 1959. Determination of ligriin, cellulose and pectin materials in flax and hemp fibres. Acad. R. Pr. Stud. Cercet., 6: 489 499.
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Vidhyasekaran, p. 1975. Role of auxin phenol complex in finger millet helmintho sporiose disease resistance. Phyhopath. Z., 82 : 89 99.
Bray, H.G. and Thorpe, W.V. 1954. Analysis of phenolic compounds of interenst in metabolism. Meth. Biochem. Analy. , 1: 27 5 9.
Chandramohan, D., Mahadevan, A. And Rangaswami, G. 1967. Studies on some biochemical properties of le af tissues of Amaranthus tricolor as related to resistance to infection by Altenaria sp. India Phytopathology, 20, 109 113.
Chauhan, M.S. 1987. Amino acids, carbohydrates and phenolics in tobacco varieties susceptible and moderately resistant to Helminthosporium spiciferum. Indian J. Mycol. Pl.Pathol., 17(l): 17 23.
Gupta, S.K., Gupta, P.P. and Kaushik, C.D. 1995. Changes Mi leaf peroxidase, polyphenol oxidase, catalase arid total phenols due to Alternaria leaf blight in brassica species. Indian J. Mycol. P I.Pathol., 25 (3):175 180.
Horsfall, J.G. and Dimond, A.E. 1957. Interactions of tissue sugar, growth substances and disease susceptibility Z. Pflkrath PfIschatz. 64: 415 421.
Inman, R E. 1965. Qualitative sugar changes in barley infected with a facultative parasite. Phytopathology. 55 :341 345
Johnson, G. and Schall, L.A. 1957. Chlorogenic acid and other Ortho dihydroxy phenols in scab resistant Russet Burband. and Scab susceptible Triumph potato tubers of different maturities. Phytopathology, 47 : 25 3 25 8.
Le Tourneau, D., Mc Lean, J.G. and Guthrie, J.W. 1957. Effect of some phenols and quinones on in vitro growth of Verticillium albo atrum. Phytopathology, 47: 602 606.
Mohammadi, A. G. and. Dwivedi, T. S. 1991. Detennination of phenolic acids in chickpea by reversed phase high performance liquid chromatography and their relation. to fungal resistance. Indian J. Plant Pathol., 9 (l &2): 42 46.
Nelson, N. 1944. A photometric adaptation of the somogyi method for determination of glucose. J. Biol. Chem. , 153 :375 380
Ralo, L. 1958. A method for the paper chromatograpic separation and identification of phenol derivatives in wood metabolism and related. compounds of biochemical interest, using a reference system. J. Chromatog., 1 :338 373.
Sandulescu, C. And Raju, T. 1959. Determination of ligriin, cellulose and pectin materials in flax and hemp fibres. Acad. R. Pr. Stud. Cercet., 6: 489 499.
Sumner, J.B. and Somers, G.F. 1949. Laboratory Experiments on Biological Chemistry. 2nd ed. Academic press. New York. P. 173.
Vidhyasekaran, p. 1975. Role of auxin phenol complex in finger millet helmintho sporiose disease resistance. Phyhopath. Z., 82 : 89 99.
Published
1997-06-01
How to Cite
A. Karthikeyan, & R. Bhaskaran. (1997). HOST RESISTANCE IN COCONUT LEAVES AGAINST LEAF BLIGHT DISEASE CAUSED BY PESTALOTIOPSIS PALMARUM (COOKE) STEY. CORD, 13(02), 34. https://doi.org/10.37833/cord.v13i02.311
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Articles
