Table 1 Nutrient biosynthesis capability of gut microbiomes of Alviniconcha marisindica from Wocan site, showing the nutrients with and without complete biosynthesis pathways in the metagenomes of gut microbiomes
Nutrients | Description | Gut microbiota | A. marisindica |
|---|---|---|---|
Biosynthesis of amino acids | |||
NEFAAs | bA, E, Q, R |  +  |  +  |
NEFAAs | A, C, D, G, M, N, Orn, P, S, T | − |  +  |
EFAAs | F, H, I, K, L, Q, R, V |  +  | − |
Biosynthesis of vitamins and cofactors | |||
Vitamin B1 | Thiamine |  +  | − |
Vitamin B2 | Riboflavin |  +  | − |
Vitamin B3 | Nicotinate and nicotinamide |  +  |  +  |
Vitamin B5 | Pantothenate |  +  | − |
Vitamin B6 | Pyridoxine | − | − |
Vitamin B7 | Biotin | − | − |
Vitamin B9 | Folate | − | − |
Vitamin B12 | Cobalamin | − | − |
Vitamin K1 | Phylloquinone | − | − |
Vitamin K2 | Menaquinone | − | − |
Coenzyme A | CoA | − |  +  |
Coenzyme Q | Ubiquinone | − | − |
|  | Protoheme (heme) | − |  +  |
|  | Siroheme | − | − |