Chinese fern

Chinese fern, Pteris cretica, contains 2)8,15a-dihydroxy-(—)-kaur-16-ene (72) and 2)5,16a-dihydroxy-(—)-kaurane. The carbon skeleton of these diterpenoids was established by reduction to ( —)-kaurene and kauranol, whilst the oxygen functions were located by changes in the n.m.r. spectra on oxidation of the hydroxy-groups. The location of the hydroxy-function at C-2 was deduced from the multiplicity of the CH-OH resonance, which showed couplings to two axial and two equatorial protons. 

Ching RC (1978) The Chinese fern families and genera systranatic arrangement and historical origin. Acta Phytotax Sin 16 1-9... 

Salido, A.L., Hasty, K.L., Lim, J.-M., Butcher, D.J. 2003. Phytoremediation of arsenic and lead in contaminated soil using Chinese brake ferns (Pteris vittata) and Indian mustard (Brassica juncea). International Journal of Phytoremediation, 5(2) 89-103. 

G.L. Duan, et al., Characterization of arsenate reductase in the extract of roots and fronds of Chinese brake fern, an arsenic hyperaccumulator. Plant Physiol. 2005, 735(1), 461 169. 

Arsenic contaminated soil can be effectively cleaned by planting the Chinese ladder fern (Pteris vittata) that absorbs the arsenic while growing quickly. 

Reverse-phase CIS column Determination of arsenite [As(III)], dimethyl arsenic add, monomethyl arsenic and arsenate [As(V)J in Chinese brake fern by ion-pair reverse-phase UPLC-inductively coupled plasma (ICP) MS [69]... 

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