STIMULATION OF BIOFILM GROWTH AS A RESPONSE TO DROUGHT STRESS

Abstract

U radu je eksperimentalno ispitana sposobnost bakterijskih kultura za stvaranje biofilma te utjecaj perioda izloženosti nedostatku vode i povećane temperature na tu sposobnost s hipotezom pojačanog stvaranja biofilma kao odgovor na stres sušom. Eksperimentalni dio rada je bio podijeljen u 3 eksperimenta kroz koje je testirano ukupno 28 bakterijskih kultura izoliranih s područja sjeveroistočne Hrvatske iz različitih tipova staništa. Od 28 bakterijskih kultura odabrano je 5 kultura za dodatni eksperiment olakšavanja stresa sušom pri uzgoju pšenice, no njihov utjecaj na olakšavanje stresa sušom nije pokazao značajan rezultat.The experiment tested the ability of bacterial cultures to produce biofilm and whether it was enhanced by exposure to higher temperature with lack of water (drought stress). Experimental part of this thesis was divided into 3 experiments through which 28 bacterial cultures sampled from north-east part of Croatia from different types of habitats were tested. Out of 28 cultures 5 cultures were chosen for experiment with wheat in which their ability to alleviate drought stress in growing wheat was tested. However there was no significant effect detected