| 外観 | 白色～うすい褐色, 結晶性粉末～粉末 |
| 溶解性 | エタノール及びアセトンに溶けやすく、水にほとんど溶けない。 |
| 解説 | 《indolebutyric acid》植物ホルモンの一。発根促進作用があり、挿し木や挿し芽の際に、発根に利用される。
小学館 デジタル大辞泉について 情報 | 凡例 |
| 用途 | 生化学 植物生長調節物質 |
| 化学的特性 | Indole-3-butyric acid (IBA) is a white to light yellow powder or crystalline solid with a slight characteristic odor. It is practically insoluble in chloroform, but is soluble in alcohol, ether and acetone. The solubility of IBA in water is 250 mg L-1 (EPA, 2010). |
| 使用 | Used to stimulate root formation of plant clippings. Suitable for plant cell culture tested. |
| 使用 | Indole-3-butyric acid is auxin-family plant hormone (phytohormone). IBA is thought to be a precursor of indole-3-acetic acid (IAA) the most abundant and the basic auxin natively occurring and functioning in plants. IAA generates the majority of auxin effects in intact plants, and is the most potent native auxin. |
| 定義 | ChEBI: Indole-3-butyric acid is a indol-3-yl carboxylic acid that is butanoic acid carrying a 1H-indol-3-yl substituent at position 1. It has a role as a plant hormone, a plant metabolite and an auxin. It derives from a butyric acid. It is a conjugate acid of an indole-3-butyrate. |
| 一般的な説明 | Indole-3-butyric acid is a plant hormone in the auxin family and is widely used in agriculture since it induces rooting in various plants species such as mung bean (Vigna radiata?L.) cuttings. |
| 作用机制 | 植物の細胞伸長や細胞分裂を制御 |
| Biochem/physiol Actions | Indole-3-butyric acid (IBA) is a naturally occurring phytohormone auxin (plant growth regulator). It promotes root formation in cuttings but does not affect ethylene levels. IBA might be a precursor for indole-3-acetic acid (IAA) through β oxidation pathway. IBA is present in plant species like Zea mays, Pisum sativum and Arabidopsis. IBA is more potent than IAA for inducing root formation. |
| 純化方法 | Recrystallise the acid from H2O. It is soluble in EtOH, Et2O and Me2CO but insoluble in CHCl3. [Bowman & Islip Chem Ind London 154 1971, Jackson & Manske J Am Chem Soc 52 5029 1930, Albaum & Kaiser Am J Bot 24 420 1937.] It has also been recrystallised from EtOH/water [James & Ware J Phys Chem 89 5450 1985]. Its UV has 278 and 320nm in isoPrOH [Elvidge Quart J Pharm Pharmacol 13 219 1940].max The methyl ester has m 73-74o (from *C6H6/pet ether) and b 230o/6mm [Bullock & Hand J Am Chem Soc 78 5854 1951]. [Beilstein 22 III/IV 1128, 22/3 V 140.] |