THE GROWTH OF SOIL FUNGI Penicillium IN THE PRESENCE OF N-(2-pyridylamino)methylenebisphosphonate AS AN ALTERNATIVE SOURCE OF NUTRIENTS
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2017, Vol 44, Issue 338
Abstract
N-(2-pyridylamino)methylenobisphosphonic acid exhibits high herbicidal capability. In this we would like to examine its interaction with soil microorganisms. The aim of this study was to evaluate the ability of Penicillium strains to grow in the presence of 1 mM N-(2- -pyridylamino)methylenobisphosphonic acid as an alternative source of phosphorus, nitrogen or carbon. The pure fungal cultures have been grown in Czapek medium or modificated medium, at 25°C for 1–4 weeks. The growth of fungi in full mineral pH 5.6 and pH 4.0 media was considered as controls, whereas the growth of fungi in medium without nutriment (carbon, nitrogen, phosphorus, nitrogen and phosphorus) was an absolute control. In our studies we determined: the kinetics of mycelial growth, fungi morphology, degree of degradation of N-(2-pyridylamino)methylenobisphosphonic acid by spectrophotometric UV-VIS and changes of media pH. Tested fungi did not use a N-(2-pyridylamino)methylenobisphosphonic acid as an alternative source nutrition. In each of the modified growth medium, inhibition of mycelial growth was observed. However, no changes of the concentration of studied acid in medium was observed. Simultaneously, we noticed phenotypic changes of the fungi what indicate that the metabolic disturbances in the presence of acid.
Authors and Affiliations
Teresa KRZYŚKO-ŁUPICKA, Łukasz KRĘCIDŁO, Magdalena KRĘCIDŁO
Keywords
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- EP ID EP410416
- DOI 10.21005/AAPZ2017.44.4.09
- Views 69
- Downloads 0
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