STUDIES ON PECTINASE PRODUCTION IN TOMATO FUNGI ON DIFFERENT CULTURE MEDIA

C. S. Swami

Abstract


Tomato (Lycopersicon esculentum Mill.) is one of the common vegetables grown all over the country extensively almost
the year round. The crop is reported to be affected by about twenty diseases of microbial origin. Among them, the fungal
pathogens have been found to affect and damage severely the tomato fruits both in eld at different developmental stages as well as in the market
during storage. This may result in the qualitative and quantitative loss of tomato fruits. The fungi are known to produce different hydrolytic
enzymes during pathogenesis. These enzymes degrade the food contents. In the present investigation, pectinase production in relation to different
culture media was studied in the fungi isolated from tomato fruits. The media were found to affect the pectinase production in the fungi isolated
from tomato fruits.


Full Text:

PDF

References


Ashour, W.E. (1955). Pectinase production by Botrytis cinera and Pythium debaryanum. Trans. Brit. Mycol. Soc.37: 343-352.

Balsubramanian, K.A. (1972). The possible role of proteolytic enzymes in the pathogenicity of Rhizopus stolonifer (Ehreneb Ex. Fr.) Lind. Indian Phytopath. 25(2): 475-476.

Brown, W. (1915). Studies on physiology of parasitism – I. The action of Botrytis cinera. Ann. Bot. Lond. 29: 313-348.

Deshpande, K.B. (1960). Studies on the pectolytic enzyme system of Rhizoctonia solani Kuhn. I. Production of protopectinase. J. Biol. Sci. 3:1-8.

Deshpande, K.S. and K. B. Deshpande (1968). Pectic enzyme production and morphogenesis in Helminthosporium atypicum. Biologia Plantarum 101: 245-250.

Gupta, S.C. (1956). Studies on physiology of parasitism – XIII. The production of pectic enzymes by Pythium debaryanum Hess. Ann. Bot. Lond. N. S. 20: 179-190.

Hasija, S.K. and Batra, S. (1981). In Vitro production of pectic enzyme by Phoma destructiva. Indian Phytopath. 34 (2): 384-387.

Hasija, S.K. and S. Batra (1984). In Vitro production of pectic enzymes by Phoma destructiva. Indian Phytopath. 37 (1): 413-145.

Husain, A. and S. Rich (1958). Extracellular pectic and cellulolytic enzymes of Cladosporium cucurmerianum. Phytopathology 48 : 318-320.

Mehta, P., K.M. Vyas and S.B. Saxena (1974). Production of pectolytic and cellulolytic enzymes by Alternaria sp. during pathogenesis of tomato fruits.

Hindustan Antibiotics bulletin 16 (4): 210-214.

Phaff, H. J. (1947). The production of extracellular pectic enzymes by Penicillium chrysogenum-I. On the formation and adaptive nature of polygalacturonase and pectinesterase. Arch. Biochem. 13: 67-81.

Ramasami, R. and N. Shanmugam (1976). Studies on pectolytic and celluloytic enzymes of Rhizoctonia bataticola in Vitro and in Vivo. Indian Phytopath. 29 (4) 385-388.

Singh, R. K. and R. K. S. wood (1956). Studies on physiology of parasitism – XXI. The production and properties of pectic enzymes secreted by Fusarium moniliforme Shdon.. Ann. Bot. Lond. N. S. 20: 89-103.

Sreekantaiah, K.R., K.S. Nagaraja and T.N. Ramchandra Rao (1971). The production of certain extracellular hydrolytic enzymes by four species of plant pathogenic fungi. Proceedings of Second International Symposium of Indian Phytopathological Society, pp. 75-76.

Tribe, H. T. (1955). Studies on physiology of parasitism – XIV. On the killing of plant cells by enzymes from Botrytis cinera. Ann. Bot. Lond. N. S. 19: 351-369.

Waggoner, P. E. and A. E. Diamond (1955). Production and role of extracellular pectic enzymes of Fusarium oxysporum f.sp. lycopersici. Phytopathology 45: 79-87.


Refbacks

  • There are currently no refbacks.