Table 3.

Transgenic plants expressing phtytases

Phytase source	Expressed in	Reference
A. niger	Tobacco	Pen et al. 1993; Verwoerd et al. 1995; Ullah et al. 1999
	Soybean	Li et al. 1997
	Alfalfa	Gutknecht 1997
	Wheat	Brinch-Pedersen et al. 2000
	Arabidopsis	Richardson et al. 2001a, b; Mudge et al. 2003
	Canola	Ponstein et al. 2002
	Maize	Chen et al. 2008
A. fumigatus	Tobacco	Wang et al. 2007
Escherichia coli	Rice	Hong et al. 2004
Selenomonas ruminantium	Rice	Hong et al. 2004
Bacillus subtilis	Tobacco	Yip et al. 2003
B. subtilis	Tobacco, Arabidopsis	Lung et al. 2005
Aspergillus sp.	Maize	Drakakaki et al. 2005
Medicago truncatula	Arabidopsis	Xiao et al. 2005