Phosphate foliar application increases biomass and P concentration in P deficient maize

p-Tolyl bis­(p-tolyl­amido)phosphate

In the title compound, C(21)H(23)N(2)O(2)P, the P atom exhibits tetra-hedral coordination; the P-N bond lengths are relatively short [1.6297 (13) and 1.6424 (13) Å]. In the crystal, adjacent mol-ecules are linked by N-H⋯O hydrogen bonds into a zigzag chain running along the c axis.

Diphenyl (p-tolyl­amido)­phosphate

The P atom in the title compound, C(19)H(18)NO(3)P, exhibits a distorted tetra-hedral configuration while the N atom shows a planar coordination. In the crystal, inter-molecular N-H⋯O hydrogen bonds form centrosymmetric dimers.

The role of P; recycling processes during photosynthesis in phosphate-deficient bean plants

Bean plants {Phaseolus vulgaris L. cv. Zlota Saxa) were grown on complete (control plants) and phosphatedeficient (low-P plants) culture solutions for 17 d. Phosphate deficiency markedly reduced leaf growth, but only slightly decreased the photosynthesis rate. The intensity of reactions releasing inorganic orthophosphate during photosynthesis was examined. In the leaves of low-P plants the pool...

1. ISOPERIMETRIC AND CONCENTRATION INEQUALITIES p. 7

Substance P concentration in human amniotic membrane.

involution of the pituitary tumor, the chiasm itself may herniate into an enlarged and relatively empty sella. In some cases, this may result in traction and kinking of axons with renewed loss of function. Likewise, although the intracranial pressure diminishes following cerebrospinal fluid leaks, deterioration of visual function can also be expected when the brain, no longer buoyed by fluid, s...