Abstract:
:The marked difference in auxin sensitivity between plant roots and shoots was studied in terms of auxin-induced stimulation of membrane P-type ATPase. The results suggest the existence in rice seedlings of, at least, two isoforms of soluble proteinous factors (SPF), SPF(I) and SPF(II), which are involved in the stimulatory action of auxin on the enzyme. It also is indicated that SPF(I) which mediates the auxin effect in low hormone concentration range (10(-10)-10(-7) M IAA) is the dominant isoform in roots, whereas SPF(II) which does in high hormone concentration range (10(-7)-10(-4) M IAA) is that in shoots.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Kim D,Kim YS,Jung Jdoi
10.1016/s0014-5793(97)00527-9subject
Has Abstractpub_date
1997-06-09 00:00:00pages
273-6issue
2eissn
0014-5793issn
1873-3468pii
S0014-5793(97)00527-9journal_volume
409pub_type
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