Mineralization of inositol hexaphosphate in aerobic and anaerobic marine sediments: Implications for the phosphorus cycle

Organic phosphorus in Madagascan rice soils

“…Inositol phosphates were also absent in soils from subtropical freshwater wetlands (Turner and Newman, 2005). Anaerobic conditions appear critical, because inositol phosphates in marine sediments from Tokyo Bay were hydrolyzed much more rapidly when incubated under anaerobic conditions compared to parallel samples incubated aerobically (Suzumura and Kamatani, 1995). A caveat is that anaerobic reduction of complexes between iron and inositol hexakisphosphate was reported to form insoluble Fe 4 -phytate rather than solubilizing the free inositol hexakisphosphate (De Groot and Golterman, 1993).…”

Characteristics of phosphorus components in the sediments of main rivers into the Bohai Sea

“…And researchers indicated that the mineralization and degradation of organic matter can cause OP release from soil and sediment. But the mobilization of OP may take longer than Fe-P and result in a lower quantity of P exchange in the short-term, and also the procession was affected by many factors, such as DO and pH (McGill and Cole, 1981;Suzumura and Kamatani, 1995;Rydin 2000;Kraal et al, 2013;Schneider et al, 2016).…”

Distribution and diversity of phytate-mineralizing bacteria

“…Phytate can be detected in preconcentrated lake waters (Eisenreich and Armstrong, 1977), river waters (Stevens and Stewart, 1982), marine waters (Matsuda et al, 1985), lake sediments (Golterman et al, 1998) and marine sediments (Suzumura and Kamatani, 1995b). In addition, it constitutes approximately 20% of total organic P in soil leachates (Toor et al, 2003).…”

“…While phytate is a major source of P input into the aquatic system and its life is ephemeral (Suzumura and Kamatani, 1995b), the identity of the organisms and their phytases that are responsible for this important biological process remain obscure. To date, four classes of phytases have been characterized in terrestrial organisms: histidine acid phosphatase (HAP), cysteine phytase (CPhy), purple acid phosphatase (PAP) and b-propeller phytase (BPP) (Mullaney and Ullah, 2003;Chu et al, 2004).…”