Mugineic acid‐family phytosiderophores in root‐secretions of barley, corn and sorghum varieties

Determination of Mugineic Acid, 2′-Deoxymugineic Acid, 3-Hydroxymugineic Acid, and Their Iron Complexes by Ion-Pair HPLC and Colorimetric Procedures

“…We achieved a detection of =% 3 ng of MA by this method. This sensitivity is within the same range as that reported by Ishida et al (1981) and Kawai et al (1987Kawai et al ( , 1988.…”

“…Separation of MAs, NH4 +, and proline by ion-pair HPLC. Kawai et al (1987Kawai et al ( , 1988 used a low pH buffer solution as eluent for MA-DMA-HMA separation. This could be attributed to the lability of MAs-metal complexes, that must be dissociated to free MAs and metal hydroxide gel under neutral to high pH conditions (Inoue et al 1993) in the HPLC line.…”

The Role of Ligand Exchange in the Uptake of Iron from Microbial Siderophores by Gramineous Plants

“…The most common PS are MA, DMA, and epi-hydroxymugineic acid (Kawai et al, 1988). The secretion of PS from Fe-deficient barley and wheat roots was found to occur within a specific period of 4 to 6 h, which usually begins about 2 h after the onset of light (Takagi et al, 1984;Marschner et al, 1986;Zhang et al, 1991).…”

Generation and Field Trials of Transgenic Rice Tolerant to Iron Deficiency

“…1) has been identified through extensive biochemical and physiological studies [21,30,32,37,54]. Methionine is the precursor of MAs [37] and is adenosylated by S-adenosylmethionine (SAM) synthetase.…”