This product specifically recognizes P. gingivalis cells. The ability to detect P. gulae has not been determined and is an application that will need to be validated by the end user.
To discuss further, please navigate to the link https://www.sigmaaldrich.com/techservice, click on "Product Technical Inquiries" under the Products Section, and respond with all the required information so that a member of the Technical Service team can reach out to assist further. Thank you.