Effect of Selenate on Viability and Selenomethionine Accumulation of Chlorella sorokiniana Grown in Batch Culture

Table 2

Values of EC₅₀ parameter for microalga cultures exposed to Se salts, expressed as Se(+IV) and/or Se(+VI) concentrations (mg·L⁻¹/μmol·L⁻¹) in culture medium, as determined and published in the literature. In some studies Se concentrations (in mg·L⁻¹) were expressed based on weight of elemental Se, while in present study it was expressed based on weight of sodium selenate (Na₂SeO₄). Table adapted from Vítová et al. (2011) [28].

Reference	Microalga specie	EC50				Cultivation type; Cont./Batch
		Selenate		Selenite
		(mg·L^−1)	(μmol·L^−1)	(mg·L^−1)	(μmol·L^−1)
Vítová et al. (2011) [28]	Scenedesmus quadricauda	33	418	4	50	B
Geoffroy et al. (2007) [1]	Chlamydomonas reinhardtii	0.36	4.5	—	—	B
Morlon et al. (2005a) [24]	Chlamydomonas reinhardtii	—	—	1.1	14	B
Morlon et al. (2005b) [25]	Chlamydomonas reinhardtii	—	—	6.3	80	B
Fournier et al. (2010) [26]	Chlamydomonas reinhardtii	0.032	0.4	—	—	B
Fournier et al. (2010) [26]	Chlamydomonas reinhardtii	0.245	3.1	—	—	B
Bennett (1988) [31]	Chlorella pyrenoidosa	0.79	10	—	—	C
Present study	Chlorella sorokiniana	45	238.2	—	—	B