Influence of parasitic fungi on the nitrogen content and transpiration in common reed

Resultsare reported of the investigations concerning changes in the nitrogen content and transpiration in <i>Pharagmites communis</i> Trin, due to infection by five species of parasitc fungi. The nitrogen content in the infected leaves proved to be 11-31 per cent lower than in healthy plants. Infection by <i>Ustilago grandis</i> and <i>Deightoniella arundinacea</i> caused a 29-54 per cent decrease in the transpiration of reed, while <i>Uredinales</i> either decreased or in creased the transpiration of the infected leaves.