LOS ANGELES (Reuters) - Rock guitarist Carlos Santana's wife has filed to dissolve the couple's 34-year marriage, the Marin Independent Journal reported.

Deborah Santana cited irreconcilable differences in her Oct. 19 filing in Marin County Superior Court, the California paper said on its Web site on Thursday.

It quoted the musician's publicist as saying the pending divorce was "a private matter and there is no comment."

The couple, who live in San Rafael 32 km north of San Francisco, have three children.

In a 2000 Rolling Stone magazine cover story, Carlos Santana said his wife was his spiritual, emotional and financial "guiding light," adding that he would "probably be a hobo" if she had not restructured his business life in 1994.

He described himself as the "space cadet" in the relationship, and she said she had "trained" him to involve himself fully in their children's lives, take out the trash and drive the car pool when he was not touring.

In her 2005 memoir, "Space Between the Stars," she revealed that her husband had been unfaithful. After its publication, Carlos Santana said he had apologized and tried to be a better man.

Mexican-born Carlos Santana, famed for such '70s hits as "Black Magic Woman" and "Oye Como Va," has sold over 90 million albums worldwide during a career spanning 40 years, according to his Arista Records label. He won eight Grammy Awards for his hugely popular 1999 comeback album "Supernatural."