. 2015 Jul 14;6:532. doi: 10.3389/fpls.2015.00532

Table 2.

Elemental composition (macro elements, concentration in mM, micro elements: concentration in μM, MeGSL in mM) of tap water, waste water of days 1–3 (High) or of days 4–6 (Low) collected during the soaking of Hanza (Boscia senegalensis seeds).

	Tap water	High (days 1–3)	Low (days 4–6)	F_2,6
Macroelements (mM)
C	1.392 (0.288)^c	332.861 (19.75)^a	38.822 (5.466)^b	706.5***
N	0.503 (0.041)^c	41.907 (1.931)^a	6.071 (0.525)^b	1134.0***
P	n.d.	0.970 (0.048)^a	0.276 (0.035)^b	629.4***
S	1.663 (0.058)^b	23.652 (2.762)^a	3.772 (0.921)^b	156.2***
K	0.096 (0.007)^b	8.402 (0.338)^a	0.592 (0.183)^b	1323.8***
Mg	0.390 (0.026)^b	1.330 (0.048)^a	0.405 (0.165)^b	86.1***
Na	2.196 (0.160)^a	0.028 (0.011)^b	0.395 (0.323)^b	93.4***
Ca	1.200 (0.016)^a	0.948 (0.005)^ab	0.754 (0.215)^b	9.7*
Si	0.201 (0.002)^a	0.0128 (0.006)^b	0.016 (0.012)^b	667.3***
Microelements (μM)
As	0.033 (0.032)	0.018 (0.031)	0.014 (0.018)	0.35^n.s.
B	5.230 (0.207)^b	24.073 (1.369)^a	5.695 (2.757)^b	109.2***
Cd	0.003 (0.003)	0.006 (0.001)	0.002 (0.002)	2.67^n.s.
Co	<0.001^b	0.015 (0.008)^a	0.004 (0.006)^ab	5.4*
Cu	0.761 (0.003)^b	2.946 (0.084)^a	0.163 (0.100)^c	1138.4***
Fe	0.145 (0.057)	1.063 (0.198)	6.851 (4.736)	5.3*
Hg	0.011 (0.004)^a	0.002 (0.002)^b	0.005 (0.002)^ab	7.4*
Mn	0.036 (0.004)^b	13.544 (0.690)^a	11.869 (3.168)^a	46.4***
Mo	0.009 (0.006)^b	0.062 (0.009)^a	0.011 (0.003)^b	72.3***
Ni	1.299 (0.023)^a	1.147 (0.074)^b	0.269 (0.023)^c	426.1***
Pb	0.031 (0.026)	<0.001	<0.001	4.1^n.s.
Sr	1.544 (0.028)^a	0.079 (0.001)^c	0.131 (0.092)^b	677.7***
Zn	14.733 (0.813)^ab	8.126 (2.629)^b	20.175 (7.525)^a	5.1^p = ^0.051
MeGSL (mM)		7.11 (0.98)	0.41 (0.05)

N = 3, SD between brackets. MANOVA to test for differences between water samples over all elements: F_12,2 = 119.206, P = 0.008. Last column: F-values of ANOVA per element. Significance: n.s. = not significant, *p < 0.05, **p < 0.01, ***p < 0.001.Different letters indicate significant differences between water samples based on Tukey HSD post hoc analyses.