Microbes, the ‘silent third partners’ of bee–angiosperm mutualisms

Shawn A. Steffan, Prarthana S. Dharampal, Jordan G. Kueneman, Alexander Keller, Magda Argueta‐Guzmán, Quinn S. McFrederick, Stephen L. Buchmann, Rachel L. Vannette, Anna Edlund, Celeste Curran Mezera, Nolan D. Amon, Bryan N. Danforth