S-methylmethionine sulphonium, which is a derivative of the methionine amino acid, defined mostly as vitamin U and various beneficial effects of Vit U have been demonstrated.
S-Methylmethionine sulfonium is a derivative of the amino acid methionine and referred as vitamin U (Vit U) due to its effects in the treatment gastrointestinal ulcers (Salim et al.
(2008) S-methylmethionine reduces cell membrane damage in higher plants exposed to low-temperature stress.
(1981) Treatment of depressive conditions with S-methylmethionine (vitamin U).
Also, all 26 lines contained an elevated internal concentration of S-methylmethionine, the mean of which, 43.3 nmol [g.sup.-1] fresh weight of callus, was 11.7 fold greater than that of the parental line.
Rather, soybean, as well as other plants, transports reduced sulfur in the phloem primarily as S-methylmethionine and glutathione (Bourgis et al., 1999).
S-methylmethionine plays a major role in phloem sulfur transport and is synthesized by a novel type of methyltransferase.