KINETICS OF PHOSPHATE UPTAKE BY CELLS OF MAIZE MATURE LEAF Transcriptional Regulation and Signaling in Phosphorus Starvation: What About Legumes? Identification of the Rice Vacuolar ATPase B Subunit Gene and Its Expression Pattern Analysis Under Phosphorus Deficiency Utilization of insoluble phosphate by Larix gmelini seedlings under phosphorus starvation