Influence ofFusarium culture filtrates on respiratory changes in cotton

  • M. Lakshmanan
  • C. S. Venkata Ram


Culture filtrates of twenty-one species ofFusarium were tested for their action on cotton tissue respiration. Filtrates ofF. buharicum, F. bulbigenum var.lycopersici, F. culmorum, F. dimerum, F. javanicum, F. lateritium, F. lini, F. moniliforme, F. orthoceras, F. oxysporum var.nicotianae, F. sambucinum, F. solani, andF. udum elicited high increases in tissue respiration over the control, whereas that ofF. caucasicum, F. equiseti, F. semitectum andF. sporotrichioides inhibited the respiratory rate.F. lateritium, F. oxysporum andF. vasinfectum caused only slight stimulation in tissue respiration.

Various organic acids, growth substances, amino acids and vitamins present in the culture filtrate when tested individually were found to increase respiratory rate and these probably played a part in stimulating respiration inFusarium infected tissue.


Respiratory Rate Sweet Potato Culture Filtrate Lini Fusaric Acid 
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Copyright information

© Indian Academy of Sciences 1957

Authors and Affiliations

  • M. Lakshmanan
    • 2
    • 1
  • C. S. Venkata Ram
    • 3
    • 1
  1. 1.University Botany LaboratoryMadras
  2. 2.Government of IndiaIndia
  3. 3.Ministry of EducationGovernment of IndiaIndia

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