Board Thread:Naruto Discussions/@comment-45365336-20200718032645

When Kabuto left after Obito commanded Kabuto to show the Edo Tensei Technique's secrets to him, Obito tells Black Zetsu to tail Kabuto. Black Zetsu replies to Obito that he has planted White Zetsu spores on Kabuto.

When Orochimaru told Jugo to release the Six White Zetsu spores on Sasuke's body to use four as a sacrifice for the First through Fourth Hokage so that they can be resurrected through the Edo Tensei Technique, Jugo was successful in releasing them by injecting Sasuke with Nature Energy.

But, when Kabuto fought Itachi and Sasuke (the battle where he was defeated by Itachi's Izanami and released the Edo Tensei technique) and used Sage Mode, the White Zetsu spores weren't released.

Is there an explanation for that? 