Biologia plantarum 10:245-250, 1968 | DOI: 10.1007/BF02921041
Pectic enzyme production and morphogenesis in Helminthosporium atypicum
- 1 Botany Department, Marathwada University, Aurangabad, (India)
The production of pectic enzymes byHelminthosporium atypicum and its morphogenesis on different media were studied. It was observed that the fungus produces pectic enzyme (macerating enzyme) adaptively. Increasing concentrations of glucose had an inhibitory effect on enzyme production. Glucose promotes profuse growth and early sporulation whereas presence of pectin slows down the growth and delays sporulation. Delay in sporulation is the effect of presence of pectin and not of the low pH of the medium. It is also suggested that in the case ofH. atypicum low pH of the medium does not allow the fungus to utilize a carbon source as efficiently as at higher pH.
Received: September 25, 1967; Published: May 1, 1968 Show citation
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