Table 2 Characteristic information of differential metabolites of MH in Pb-contaminated environment.

From: Metabolomics-based study reveals the effect of lead (Pb) in the culture environment on Whitmania pigra

NO.	Iron mode	classification	metabolites	Formula	RT/s	m/z	VIP score^a	P-value^a	Up or down^a
1	ESI⁺	Phospholipids	PE(14:0/14:0)	C₃₃H₆₆NO₈P	13.53	699.4705	3.26	0.0036	↓
2	ESI⁺		LPE(24:6)	C₂₉H₄₈NO₇P	12.35	518.3062	1.10	0.0266	↓
3	ESI⁺		LPE(18:1)	C₂₃H₄₆NO₇P	12.60	524.2758	1.73	0.0048	↓
4	ESI⁺		Phosphorylcholine	C₅H₁₅NO₄P	0.97	184.0689	4.76	3.18E-07	↓
5	ESI⁻		Phosphatidylserine(28:2)	C₃₄H₆₂NO₁₀P	9.63	656.393	1.88	0.03023	↓
6	ESI⁺		Sphinganine	C₁₈H₃₉NO₂	10.89	274.2711	2.00	0.0110	↓
7	ESI⁺		Phytosphingosine	C₁₈H₃₉NO₃	10.86	318.3058	2.02	0.0247	↓
8	ESI⁺		Cardiolipin(65:2)	C₇₄H₁₄₀O₁₇P₂	10.54	1376.9655	1.72	0.0024	↓
9	ESI⁺	Triglycerides	Tracylglycerol (61:3)	C₆₄H₁₁₈O₆	10.44	996.8949	1.55	0.0208	↓
10	ESI⁺		Triacylglycerol(71:0)	C₇₄H₁₄₄O₆	10.68	1143.1074	1.19	0.0393	↓
11	ESI⁺		Diacylglycerol(33:0)	C₃₆H₇₀O₅	21.45	615.5587	1.66	0.0430	↓
12	ESI⁻		Diacylglycerol(42:1)	C₄₅H₈₆O₅	10.43	1412.2859	1.38	0.0276	↓
13	ESI⁻	Nucleotides and derivatives	Uridine 2′-phosphate	C₉H₁₃N₂O₉P	1.07	323.031	1.26	0.0196	↑
14	ESI⁺		2′,3′-Cyclic UMP	C₉H₁₁N₂O₈P	1.04	348.0616	1.96	0.0013	↓
15	ESI⁺		Adenosine 5′-monophosphate	C₁₀H₁₄N₅O₇P	1.09	348.0613	2.00	0.0332	↓
16	ESI⁺		Cytidine monophosphate N-acetylneuraminic acid	C₁₂H₁₆N₂O₃S	11.36	1251.2936	2.00	0.0005	↑
17	ESI⁻	Dipeptides	Glutamylmethionine	C₁₀H₁₈N₂O₅S	7.71	243.0775	1.63	0.0476	↑
18	ESI⁺		Histidinyl-Isoleucine	C₁₂H₂₀N₄O₃	8.49	559.3003	2.68	0.0117	↑
19	ESI⁺		Phenylalanyl-Tryptophan	C₂₀H₂₁N₃O₃	7.96	393.1945	1.62	0.0281	↓
20	ESI⁺		Cysteinyl-Phenylalanine	C₁₂H₁₆N₂O₃S	1.05	301.1234	1.94	0.0001	↓
21	ESI⁻		Methionyl-Serine	C₈H₁₆N₂O₄S	1.08	273.0322	2.06	0.0332	↑
22	ESI⁻		Valyl-Arginine	C₁₁H₂₃N₅O₃	7.92	272.1746	1.32	0.0477	↓
23	ESI⁻	others	Farnesyl pyrophosphate	C₁₅H₂₈O₇P₂	9.13	427.1314	1.44	0.0040	↓
24	ESI⁻	others	N-Acetyl-D-Glucosamine 6-Phosphate	C₈H₁₆NO₉P	1.04	300.0468	1.24	0.0062	↑

^aThe results of the group exhibiting the greatest change in the metabolite was compared with that in the BC group when the metabolite did not change in a dose-dependent manner, otherwise indicating the compared results of PbH with BC.

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Table 2 Characteristic information of differential metabolites of MH in Pb-contaminated environment.

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