Details
| Original language | English |
|---|---|
| Pages (from-to) | 191-197 |
| Number of pages | 7 |
| Journal | Journal of plant growth regulation |
| Volume | 14 |
| Issue number | 4 |
| Publication status | Published - Oct 1995 |
Abstract
Indole-3-lactic acid (ILA) is a naturally occurring indole derivative, preferably detected in soil bacteria and fungi and only in low amounts in plants. T-DNA gene 5 of Agrobacterium tumefaciens was found to be involved in the synthesis of ILA in transformed plant tissues, but the physiologic relevance for ILA production in plants is unclear. The related molecular structure of ILA to the natural auxin indole-3-acetic acid (IAA) makes ILA a good candidate for an auxin analogue. We examined the possible auxin activity of ILA on elongation, proliferation, and differentiation in Pisum sativum L. Results presented in this paper indicate that there are no or only weak effects of ILA toward the activity of auxins when used in the physiologic concentration range. Furthermore, no antagonistic effects of ILA were found. Biochemical analysis using the equilibrium dialysis binding system resulted in no high affinity ILA binding to an enriched protein fraction containing auxin-binding protein (ABP44), whereas 1-naphthaleneacetic acid exhibited high affinity auxin binding.
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Journal of plant growth regulation, Vol. 14, No. 4, 10.1995, p. 191-197.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Indole-3-1actic Acid is a Weak Auxin Analogue but Not an Anti-auxin
AU - Sprunck, Stefanie
AU - Jacobsen, Hans Jörg
AU - Reinard, Thomas
N1 - Funding Information: This work was supported by DFG grants to H.-J.J. and T.R.
PY - 1995/10
Y1 - 1995/10
N2 - Indole-3-lactic acid (ILA) is a naturally occurring indole derivative, preferably detected in soil bacteria and fungi and only in low amounts in plants. T-DNA gene 5 of Agrobacterium tumefaciens was found to be involved in the synthesis of ILA in transformed plant tissues, but the physiologic relevance for ILA production in plants is unclear. The related molecular structure of ILA to the natural auxin indole-3-acetic acid (IAA) makes ILA a good candidate for an auxin analogue. We examined the possible auxin activity of ILA on elongation, proliferation, and differentiation in Pisum sativum L. Results presented in this paper indicate that there are no or only weak effects of ILA toward the activity of auxins when used in the physiologic concentration range. Furthermore, no antagonistic effects of ILA were found. Biochemical analysis using the equilibrium dialysis binding system resulted in no high affinity ILA binding to an enriched protein fraction containing auxin-binding protein (ABP44), whereas 1-naphthaleneacetic acid exhibited high affinity auxin binding.
AB - Indole-3-lactic acid (ILA) is a naturally occurring indole derivative, preferably detected in soil bacteria and fungi and only in low amounts in plants. T-DNA gene 5 of Agrobacterium tumefaciens was found to be involved in the synthesis of ILA in transformed plant tissues, but the physiologic relevance for ILA production in plants is unclear. The related molecular structure of ILA to the natural auxin indole-3-acetic acid (IAA) makes ILA a good candidate for an auxin analogue. We examined the possible auxin activity of ILA on elongation, proliferation, and differentiation in Pisum sativum L. Results presented in this paper indicate that there are no or only weak effects of ILA toward the activity of auxins when used in the physiologic concentration range. Furthermore, no antagonistic effects of ILA were found. Biochemical analysis using the equilibrium dialysis binding system resulted in no high affinity ILA binding to an enriched protein fraction containing auxin-binding protein (ABP44), whereas 1-naphthaleneacetic acid exhibited high affinity auxin binding.
UR - http://www.scopus.com/inward/record.url?scp=0343628154&partnerID=8YFLogxK
U2 - 10.1007/BF00204911
DO - 10.1007/BF00204911
M3 - Article
AN - SCOPUS:0343628154
VL - 14
SP - 191
EP - 197
JO - Journal of plant growth regulation
JF - Journal of plant growth regulation
SN - 0721-7595
IS - 4
ER -