Letter | Published:

Homoserine in Bleeding Sap of Pea Plants

Nature volume 180, page 713 (05 October 1957) | Download Citation

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Abstract

IN a recent paper1, it was shown by means of paper chromatography that in bleeding sap of pea plants 5½ weeks old, inoculated with effective strains of Rhizobium, some amino-acids and amides occurred. The chief of these compounds proved to be aspartic acid, asparagine, glutamine and a substance giving a colour with ninhydrin, of which the RF values on nearly all chromatograms corresponded with those of threonine. Only when using phenol/water as solvent was a somewhat higher RF value found. The other solvents used were : collidine/water; butanol/acetic acid/water ; propanol/water2.

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Affiliations

  1. Laboratory of Microbiology, Agricultural University, Wageningen, The Netherlands.

    • JANNY A. BAKHUIS

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DOI

https://doi.org/10.1038/180713a0

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