Table 2. Detection of the uncultured epsilonproteobactrium in H. gigantea samples.

Sample code	Tissue
	Gill	Gut	Foot
Hgig1	w	–	NT
Hgig2	+	–	–
Hgig3	+	w	–
Hgig4	w	–	w
Hgig5	–	–	–
Hgig6	+	–	–

Note:

+, positive; w, weak (i.e., PCR products obtained but the bands were very feint); −, negative; NT, not tested.