>tr|A0A0U3B1W8|A0A0U3B1W8_9POAL Cytochrome b6 OS=Merostachys sp. Greco 18 GN=petB MSKVYDWFEERLEIQAIADDITSKYVPPHVNIFYCLGGITLTCFLVQVATGFAMTFYYRP TVTEAFSSVQYIMTEANFGWLIRSVHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWVT GVVLAVLTASFGVTGYSLPWDQIGYWAVKIVTGVPEAIPVIGSPLVELLRGSASVGQSTL TRFYSLHTFVLPLLTAVFMLMHFPMIRKQGISGPL