Abstract
Putrescine, spermidine, spermine and cadaverine have been identified and quantified in rice phloem sap and shoot extracts by HPLC. It is suggested that diamines, putrescine and cadaverine, easily migrate into the phloem, while movement of a triamine, spermidine, and a tetramine, spermine, tend to be restricted. Spermine especially seems to be the most immobile among polyamines. Thus it is indicated that movement of polyamines into phloem is decreased with increasing number of amino groups. Indole-3-acetic acid and abscisic acid in rice phloem sap were also analyzed by HPLC and it is suggested that indole-3-acetic acid is transported freely into phloem, while abscisic acid is much more actively exuded into phloem.
| Original language | English |
|---|---|
| Pages (from-to) | 125-128 |
| Number of pages | 4 |
| Journal | Plant Growth Regulation |
| Volume | 15 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Sep 1994 |
| Externally published | Yes |
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Keywords
- abscisic acid
- auxin
- Oryza sativa
- phloem sap
- polyamine
- rice
ASJC Scopus subject areas
- Plant Science
Cite this
Polyamines, indole-3-acetic acid and abscisic acid in rice phloem sap. / Yokota, T.; Nakayama, M.; Harasawa, I.; Sato, M.; Katsuhara, Maki; Kawabe, S.
In: Plant Growth Regulation, Vol. 15, No. 2, 09.1994, p. 125-128.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Polyamines, indole-3-acetic acid and abscisic acid in rice phloem sap
AU - Yokota, T.
AU - Nakayama, M.
AU - Harasawa, I.
AU - Sato, M.
AU - Katsuhara, Maki
AU - Kawabe, S.
PY - 1994/9
Y1 - 1994/9
N2 - Putrescine, spermidine, spermine and cadaverine have been identified and quantified in rice phloem sap and shoot extracts by HPLC. It is suggested that diamines, putrescine and cadaverine, easily migrate into the phloem, while movement of a triamine, spermidine, and a tetramine, spermine, tend to be restricted. Spermine especially seems to be the most immobile among polyamines. Thus it is indicated that movement of polyamines into phloem is decreased with increasing number of amino groups. Indole-3-acetic acid and abscisic acid in rice phloem sap were also analyzed by HPLC and it is suggested that indole-3-acetic acid is transported freely into phloem, while abscisic acid is much more actively exuded into phloem.
AB - Putrescine, spermidine, spermine and cadaverine have been identified and quantified in rice phloem sap and shoot extracts by HPLC. It is suggested that diamines, putrescine and cadaverine, easily migrate into the phloem, while movement of a triamine, spermidine, and a tetramine, spermine, tend to be restricted. Spermine especially seems to be the most immobile among polyamines. Thus it is indicated that movement of polyamines into phloem is decreased with increasing number of amino groups. Indole-3-acetic acid and abscisic acid in rice phloem sap were also analyzed by HPLC and it is suggested that indole-3-acetic acid is transported freely into phloem, while abscisic acid is much more actively exuded into phloem.
KW - abscisic acid
KW - auxin
KW - Oryza sativa
KW - phloem sap
KW - polyamine
KW - rice
UR - http://www.scopus.com/inward/record.url?scp=0028155352&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028155352&partnerID=8YFLogxK
U2 - 10.1007/BF00024101
DO - 10.1007/BF00024101
M3 - Article
AN - SCOPUS:0028155352
VL - 15
SP - 125
EP - 128
JO - Plant Growth Regulation
JF - Plant Growth Regulation
SN - 0167-6903
IS - 2
ER -