Abstract
The research was done to obtain the isolates of soil borne fungi isolated from mangrove rhizosphere which were capable of degrading petroleum hydrocarbon compounds. The soil samples were collected from South Sumatra mangrove forest which was contaminated by petroleum. The isolates obtained were selected based on their ability to survive, to grow and to degrade polycyclic aromatic hydrocarbons in medium containing petroleum residue. There were 3 isolates of soil borne hydrocarbonoclastic fungi which were able to degrade petroleum in vitro. The 3 isolates were identified as Aspergillus fumigates, A. parasiticus, and Chrysonilia sitophila. C. sitophila was the best isolate to decrease total petroleum hydrocarbon (TPH) from medium containing 5-20% petroleum residue.Keywords: Hydrocarbonoclastic fungi, hydrocarbon compounds, mangrove rhizosphere
Highlights
Crop salt tolerance is influenced by plants, soil, water and environment
It has been considered as a response to the relative yield because the increase of soil salinity (ECe) or irrigation water (ECw) in the root zone compared to certain ECe under nonsaline conditions in root zone (Maas and Hoffman 1975)
Means followed by the same letter in the same coloumn were not significantly different according to Least Significance Different (LSD) test (P>0.05)
Summary
Crop salt tolerance is influenced by plants, soil, water and environment. It has been considered as a response to the relative yield because the increase of soil salinity (ECe) or irrigation water (ECw) in the root zone compared to certain ECe under nonsaline conditions in root zone (Maas and Hoffman 1975). Maize tolerance to salinity was varied between varieties, which were classified as the more sensitive (Katerji et al 2001), sensitive enough (Katerji et al 2004), sensitive (Jumberi 2002), and tolerant (Katerji et al 2000) They have a root system that efficiently limited the transport of Na + and Cl- into the stem (Maas and Hoffman 1975; Benes et al 1997).
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