Mycopathologia et mycologia applicata

, Volume 39, Issue 3–4, pp 265–271 | Cite as

Utilization of carbohydrates by Helminthosporium rostratum drechs. and Deightoniella torulosa (SYD). Ell. (SYN. Helminthosporium torulosum SYD.)

  • I. J. Kapoor
  • R. N. Tandon
Article

Summary

Utilization of four carbohydrates, viz. D-glucose, D-fructose, sucrose and starch, byHelminthosporium rostratum andDeightoniella torulosa isolated from the leaves ofJasminum arborescensVern. “Newari” and banana (Musa paradisiaca L.) fruits respectively, was exhaustively investigated by chromatographic technique. Chromatographic analysis of the culture medium revealed that both the organisms assimilated glucose earlier than fructose. The hydrolytic products of sucrose and starch (only glucose was detected) could be traced in the medium. In all cases dry weights of both the organisms continued to increase upto 15 days except inH. rostratum growing on starch where it decreased after 10th day. The pH changes of the media showed a drift towards neutrality.

Keywords

Glucose Sucrose Starch Carbohydrate Fructose 

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Copyright information

© Kluwer Academic Publishers 1969

Authors and Affiliations

  • I. J. Kapoor
    • 1
  • R. N. Tandon
    • 1
  1. 1.Botany DepartmentUniversity of AllahabadAllahabadIndia

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