Co-author wants to remove herself in author list after revisions I am a graduate student (biological sciences) and had a collaborator and a co-author who wanted her name removed from the list of authors after she is not satisfied with the revisions made.

Just to give a brief background, I am the project leader and lead author of this work, this co-author is a collaborator, who didn't do much work but helped me get access to the facility (which is also not hers). After a few months of working in the facility, I got unexpected results, which is worthy to be published as short communications.

To make the story short, we submitted the paper, then a revision request from reviewers came. It was major but doable, I addressed all the concerns and responded to the reviewers' comments and made some rebuttals. I send to her for her inputs and perspectives; and she decided to remove her name after feeling unsatisfied of the revisions and wanted more information, which is already out of my work. This is her prerogative to decide, but this decision seemed unhealthy for collaborative work. I'm wondering, should I consider her as a co-author in my future work? Or what should be the best response I should make?

I suspect she doesn't trust the work. She suggest she knows better but it's frustrating she doesn’t give any sensible edits.
It sounds like she withdrew from the paper, but not from the collaboration. In other words she's saying she doesn't trust the results of the paper enough to have her name attached to it, but not that she doesn't trust you. Therefore it doesn't mean the collaboration is over. Besides, if she contributed to your future work at the level of a co-author, she should at least be approached for co-authorship.

In response to her withdrawing from the paper, the best response is probably talking to the other co-authors, if there are any, about how to answer the reviewers' comments. If the consensus "best way" is unacceptable to her and she wants to withdraw anyway, then c'est la vie.