Eah. Pilonsmits et al., SELENIUM VOLATILIZATION AND ASSIMILATION BY HYBRID POPLAR (POPULUS-TREMULA X ALBA), Journal of Experimental Botany, 49(328), 1998, pp. 1889-1892
The poplar hybrid Populus tremula x alba was shown to volatilize signi
ficant amounts of selenium. The volatilization rates were 230-fold hig
her from selenomethionine compared to selenite, and 1.5-fold higher fr
om selenite than from selenate, X-ray absorption spectroscopy showed t
hat selenate was metabolized slowly, but selenite was quickly converte
d to organic selenium.