Abstract:
:Evidence is presented that intracellular ammonium is trapped in vacuoles of maize (Zea mays L.) root tips because of rapid movement of ammonia between cytoplasm and vacuoles. The concentration of cytoplasmic ammonium is estimated to be <15 mum at extracellular ammonium concentrations up to 1 mm. The implications for pathways of ammonium assimilation are discussed.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Roberts JK,Pang MKdoi
10.1104/pp.100.3.1571subject
Has Abstractpub_date
1992-11-01 00:00:00pages
1571-4issue
3eissn
0032-0889issn
1532-2548journal_volume
100pub_type
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