Apical organ

Grundemann D, Babin-Ebell J, Martel F, Ording N, Schmidt A, Schomig E (1997) Primary structure and functional expression of the apical organic cation transporter from kidney epithelial LLC-PK1 cells. J Biol Chem 272, 10408-10413. 

Ekaratanawong S, Anzai N, Jutabha P, Miyazaki H, Noshiro R, Takeda M, Kanai Y, Sophasan S, Endou H. Human organic anion transporter 4 is a renal apical organic anion/dicarboxylate exchanger in the proximal tubules. J Pharmacol Sci 2004 94 297-304. 

Van Aubel RA, Smeets PH, Peters JG, Bindels RJ, Russel FG. The MRP4/ ABCC4 gene encodes a novel apical organic anion transporter in human kidney proximal tubules putative efflux pump for urinary cAMP and cGMP. J Am Soc Nephrol 2002 13 595-603. 

Molecular identification of putative apical organic cation transporters... 

Lacalli, T. 1994. Apical organs, epithelial domains, and the origin of the chordate central nervous system. Amer. Zool. 34, 533-541. 

Formation of Ni—CH3 species by the more likely biological route of Ni-based nucleophilic attack on a methyl electrophile has been demonstrated. The Ni complex, (40), supported by thioether and phosphine ligation, was reduced to the Ni adduct in situ. It was then oxidized to the Ni CH3 and Ni (C(0)CH3) species by reaction with CH3I and CH3C(0)C1, respectively. These low-spin, square-pyramidal complexes contain apical organic ligands and are related by CO insertion/extrusion, which was rapid even at -60 °C, precluding kinetic analysis. 

FIGURE 5.3 Ascorbic acid and auxin contents of apical organs at seven day interval throughout the growth period of Triticum aestivum L. cv. Hansa (Swalof, Sweden). 

FIGURE 5 4 AA and auxin contents as well as AA-U In the apical organs of three cultivars of Triticum aestIvum under LDV and NDC conditions (Chinoy, 1962). 

FIGURE 5.7. DNA, Rfc A, protein, histone and cell-wall material as well as ATPase activity in apical organs or Hordenm vulgare L. cv. N.P. 20 grown under NDC and LDV conditions. 

FIG. 1. Shoot apical meristem structure. The shoot apical meristem consists of three clonally distinct cell layers (LI, L2, L3). LI and L2 represent tunica layers, L3 represents the corpus. Cell divisions in LI and L2 are exclusively anticlinal, cell divisions in the L3 occur in all planes. The central zone harbours the stem cells and is surrounded by the peripheral zone where organ primordia are initiated. 

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