Intercellular Localization of Cysteine Synthase and Alliinase in Bundle Sheaths of Allium Plants

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Author(s)

Abstract

Cysteine synthase and alliinase (alliin-lyase) are terminal enzymes responsible for synthesis of cysteine and degradation of alliin (S-alk(en)yl-cysteine sulfoxide), respectively, in Allium plants. We determined the intercellular localization of cysteine synthase and alliinase using antibodies against these proteins. Cysteine synthase was predominantly localized in bundle sheath and phloem cells of three Allium plants, A. tuberosum, A. cepa and A. sativum. Lower amounts could be detected in mesophyll cells. Alliinase was almost exclusively localized in bundle sheath cells of the three Allium species. These results suggest the importance of bundle sheath cells for both synthesis and degradation of sulfur-containing compounds in Allium plants.

Journal

  • Plant Biotechnology

    Plant Biotechnology 19(1), 7-10, 2002-03-01

    Japanese Society for Plant Cell and Molecular Biology

References:  12

Codes

  • NII Article ID (NAID)
    10010148416
  • NII NACSIS-CAT ID (NCID)
    AA11250821
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    13424580
  • NDL Article ID
    6106357
  • NDL Source Classification
    ZR3(科学技術--生物学--植物)
  • NDL Call No.
    Z54-J126
  • Data Source
    CJP  NDL  J-STAGE 
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