Henry Teng Associate Professor Dept of Chemistry (202)994-0112 (office) (202)994-0113 (lab)

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Henry Teng Associate Professor Dept of Chemistry (202) (office) (202) (lab)

How Does Fungus A. fumigatus Free up K From Minerals? in contact separated A. fumigatus Feldspar Henry Teng, Chemistry

How Does Fungus A. fumigatus Free up K From Minerals? Henry Teng, Chemistry

How Does Fungus A. fumigatus Free up K From Minerals? 2KAlSi 3 O 8 + 2H + + 9H 2 O = Al 2 Si 2 O 5 (OH) 4 + 4H 4 SiO 4 (aq) + 2K + KAlSi 3 O 8 + 4H + + 4H 2 O = Al H 4 SiO 4 (aq) + K + Presumed Chemical Reactions w/o. Biology Neutral to weak acidic conditions Strong acidic conditions Henry Teng, Chemistry

How Does Fungus A. fumigatus Free up K From Minerals? Questions with Uncertain Answers: What is/are the force(s) that A. fumigatus uses to dissolve feldspar in the light of that: 2. Mycelium-mineral physical interactions and insolule extracellular secretion promote additional dissolution 1. Decreasing pH inhibits mineral dissolution Henry Teng, Chemistry Day 2Day 7Day 30

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