Energy cost of ion transport.
D000327:Adsorption; D001693:Biological Transport, Active; D004734:Energy Metabolism; D009566:Nitrates / Q000378:metabolism; D010101:Oxygen Consumption; D011188:Potassium / Q000378:metabolism; D013997:Time Factors; D003313:Zea mays / Q000378:metabolism*
D009566:Nitrates; D011188:Potassium