Sotta B, Pilate G, Pelese F, Sabbagh I, Bonnet M, Maldiney R
Laboratoire de Physiologie Végétale, T 53, 5ème étage, Université P et M Curie, 4 place Jussieu, 75252 Paris Cedex 05, France.
Plant Physiol. 1987 Jul;84(3):571-3. doi: 10.1104/pp.84.3.571.
A solid phase enzyme immunoassay was developed for isopentenyladenine (iP) and isopentenyladenosine (iPA) quantitation in HPLC purified plant extracts. It was performed on antigen-coated microtitration plates on which bound antibodies were indirectly labeled by the means of a biotinylated goat anti-rabbit antibody and an avidin-alkaline phosphatase conjugate. Less than 3 femtomoles of iP or iPA were easily detected and the measuring range extended from 3 femtomole to 1 picomole. The reproducibility has been tested and intra- and interassay variations did not exceed 5.0%. The specificity of iPA antibodies was good, as determined by cross-reactivity measurements with other adenylic compounds. The specificity of the measurements for iP and iPA was demonstrated by analysis of the immunoreactivity of fractions obtained by HPLC separation of a methanolic tobacco leaf extract.
开发了一种固相酶免疫测定法,用于对HPLC纯化的植物提取物中的异戊烯基腺嘌呤(iP)和异戊烯基腺苷(iPA)进行定量。该测定法在包被抗原的微量滴定板上进行,结合的抗体通过生物素化山羊抗兔抗体和抗生物素蛋白-碱性磷酸酶缀合物间接标记。易于检测到少于3飞摩尔的iP或iPA,测量范围从3飞摩尔扩展到1皮摩尔。已测试了重现性,批内和批间变异不超过5.0%。通过与其他腺苷酸化合物的交叉反应测量确定,iPA抗体的特异性良好。通过对甲醇提取的烟草叶提取物进行HPLC分离得到的级分的免疫反应性分析,证明了对iP和iPA测量的特异性。