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Abstract

Leaf  leachates  of  two  cultivars  of potato  i.e.  Kufri  Chandramukhi   (KCM)  and  Kufri  Jyoti  (KJ  ) contain  nine amino  acids.  Total  sugar content  of   KCM  and KJ leachates  varied between  0.10 and  0.37 µg  per sq.  cm and  0.02 to  0.23  µg  per sq.  cm.  respectively.   The  sugars  exuded  more  by KCM.  Total  phenol  content  of  KCM  and  KJ leachates  varied  between  1.00  to 2.0 µg per sq.  cm  and 1.05  to  3.16   µg per  sq.  cm  respectively.  The  percentage germination  of  P. infestans  sporangia  in KCM  and KJ  cultivars  was  more  in  mature  leaf  leachates  as  compared to  young  leaves,  moreover  it was less  in KJ  cultivar  as  compared  to  KCM.  The  germ  tube  length  of  P.  infestans zoospores  in  leaf  leachates  was inhibited  in both  the  cultivars  except  in  mature  leaf  leachate  of  94  days  old Ku fri  Chandramukhi.

Keywords

potato plant leaf leachates germination

Article Details

How to Cite
Navneet, & Deepika. (2007). Effect of leaf leachates of potato plants on germination of Phytophthora infestans sporangia and zoospores. Environment Conservation Journal, 8(3), 17–22. https://doi.org/10.36953/ECJ.2007.080306

References

  1. Block, R.J. and Durham, and E.L. and Zweig, G., 1958. A Manual of Paper Chromatography and Paper Electrophoresis. Acadmic Press, New York, 710 pp.
  2. Bansal, B. K., Navneet and Mehrotra, R.S., 1988. Phyllosphere mycoflora of wheat in relation to leaf leachates and its resistence to Helminthosporium blight. Indian Phytopath, 41: 398-405.
  3. Bahadur, P. and Sinha, S.,1970. Studies on spores germination of Uromyces cicerisarietini influence of leaf exudates of gram. Indian Phytopath., 23: 644-649.
  4. Chet². , Ziberstein, Y. and Henis, Y., 1973. Chemotaxis of Pseudomonas lachrymans to plant extracts and to water droplets collected from leaf surfaces of resistant and susceptible plants. Physiological Plant Pathology, 3: 473-479. DOI: https://doi.org/10.1016/0048-4059(73)90057-X
  5. Collins, M. A. and Hayes, A.J., 1976. The seasonal incidence of microbes on the surface of first year needles of Norway spruce. Trans. Br. Mycol. Soc., 66: 457-461. DOI: https://doi.org/10.1016/S0007-1536(76)80216-1
  6. Child, J. J. and Fothergill, P. G., 1967. The amino acid content of potato plant varieties and their resistance to attack by Phytophthora species. J. Sci. Fd. Agric., 18: 3-7. DOI: https://doi.org/10.1002/jsfa.2740180102
  7. Farkas, G. L. and Kiraly, Z., 1962. Role of phenolic compounds in the physiology of Plants disease and disease resistance. Phytopath., 44:105-150. DOI: https://doi.org/10.1111/j.1439-0434.1962.tb02005.x
  8. French, A. M., 1953. Physiologic differences between two physiologic races of Phytopthora infestans. Phytopathology, 43:513-516
  9. Godfrey,B.E. S., 1974., Phylloplane mycoflora ofbraken,Pteridium aquilinum.Trans. Br.Mycol.Soc.62: 305-311. Link, K. P. and Walker, J.C., 1933. The isolation of catechol from pigmented onion scales and its significance in relation to disease resistance in onions. J. Boil. Chem., 100: 379-383. DOI: https://doi.org/10.1016/S0021-9258(18)75955-3
  10. Morris, D.L., 1948. Quantitative determination of carbohydrates with Dreywood’s anthrone reagent. Science, 254-255. DOI: https://doi.org/10.1126/science.107.2775.254
  11. Mishra, R. R. and Tewari, R. P., 1978. Studies on pyllosphere fungi: Germination behaviour of certain fungi in leaf extract and exudates of wheat and barley. Acta Bot. Indica, 6: 21-30.
  12. Purnell, T. J., 1971. Effects of pre-inoculation washings of leaves with water on subsequent infections by Erisyphe cichoracearum. In Ecology of Leaf Surface Microorganisms (Preece, T. F. and Dickinson, C. H., Eds.). Academic Press, London, pp.269-275.
  13. Sadasivam, K. V., Rangaswami, G. and Prasad, N. N., 1976. Studies on pyllosphere microflora of tapioca (Manihot utilissima Pohl.). Zbl. Bakt . Abt.²² Bd.,131: 632-643. DOI: https://doi.org/10.1016/S0044-4057(76)80026-3
  14. Singh, P.N., Sindhu, I.R. and Gupta, K., 1986. Effect of leaf exudates and extract of spinach on some phylloplane fungi. Acta Bot. Indica., 14: 104-110.
  15. Shepherd, C.J. and Mandryk, M., 1963. Germination of conidia ofPeronospora tabacina. ²². Germination in vivo. Aust. J. Boil. Sci., 16: 77- 87. DOI: https://doi.org/10.1071/BI9630077
  16. Sharma, J.K. and Sinha, S., 1971. Effect of exudates of Sorgum varieties varying in susceptibility and maturity on the germination of conidia of Colletotrichum graminicola (Ces.) Wilson. In Ecology of Leaf Surface Microorganisms (Preece, T.F. and Dickinson, C.H., Eds.)., Academic Press, London, pp.597-601.
  17. Singh, S.A. and Gupta, P.K.S., 1983. Effect of leaf exudates and extracts on conidial germination of rice leaf scald fungus, Rhynchosporium oryzae. Indian J. Plant Pathol., 1:109-113.
  18. Schneider, R.W. and Sinclair, J.B., 1975. Inhibition of conidial germination and germ tube growth of Cercospora canescens by cow pea leaf diffusates. Phytopathology., 65:63-65. DOI: https://doi.org/10.1094/Phyto-65-63
  19. Vincent, J.M., 1947. Distortion offungal hyphae in the presence of certain inhibitors.Nature (London), 159: 850. Wang, S.C. and Pinckard, J.A., 1973. Spore germination of Diplodia gossypina in the presence of carbohydrates and phenolic compounds in relation to boll rot of cotton. Phytopathology, 63:1181-1185. DOI: https://doi.org/10.1094/Phyto-63-1181