In Ranong, Thailand, there are 59 species of fungi that decompose mangrove litter (Chalermpongse et al., 1988). The important species among them are Aigialus grandis, Dactylospora haliotrepha, Halosarpheia abonnis, H. ratnagiriensis, Halocyphina villosa, Helicasous kanaloanus, Hydronectria tethys, Lignincola longirostris, Phoma sp., Rosellinia sp., and Savoryella lignicola.There are very few studies on bacteria that decompose mangrove litter. However, in Thailand, Agate (1984) found both autotrophic and heterotrophic bacteria that perform this function. Autotrophic bacteria include Thiobacillus twooxidans and T. ferrooxidarts, which are aerobic bacteria, and Desulfovibrio desulfuricans, which is anaerobic. Heterotrophic bacteria are composed mainly of Bacillus stearothermophilus, B. megaterium, B. macerans, B. firmus, Staphylococcus sp., Micrococcus varians, M. luteus, Phanococcus sp., Proteus vulgaris, P. mirabilis and Citrobacter sp.
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