The site of synthesis and secondary transformation of hyoscyamine in Solandra grandiflora

Abstract (−)-Hyoscyamine infiltrated into alkaloid-free Solandra grandiflora scions on Lycopersicon esculentum (tomato) stocks and also into aerial parts of a normal tomato plant was transformed to atropine, noratropine and tropine. These alkaloids were also isolated from an untreated tomato scion raised on a S. grandiflora stock. The results are discussed in relation to the site of synthesis and secondary transformation of (−)-hyoscyamine in S. grandiflora .