Nana Gogo was working at her salon Wednesday morning when she learned that the MBTA would terminate weekend service on the Green Line’s E Branch between Brigham Circle and Heath Street, beginning July 1. Her hands darted back and forth as she weaved a client’s hair together with longer, sleeker strands plucked from a table beside her.

“That’s not a good idea,” said the immigrant from the Ivory Coast. “It’s not good for my business.” Her staff and clients take the E train, and it can provide free advertising: Sometimes new customers visit Nana’s Hair Braiding & Full Service Beauty Salon, at 901 Huntington Ave., after seeing it from the window as they clatter by.