Suppression of an elicitor-induced oxidative burst reaction in Nicotiana tabacum and Medicago sativa cell cultures by corticrocin but not by mycorradicin
Suppression of an elicitor-induced oxidative burst reaction in Nicotiana tabacum and Medicago sativa cell cultures by corticrocin but not by mycorradicin
复制标题
皮质宏素而非霉菌素抑制烟草和苜蓿细胞培养物中引发剂诱导的氧化爆发反应
DOI：
10.1007/s005720100107
复制
发表时间：
2001
期刊：
影响因子：
3.9
通讯作者：
Karsten Niehaus
中科院分区：
文献类型：
--
作者：
S. Schröder;U. Hildebrandt;H. Bothe;Karsten Niehaus
在烟草 (Nicotiana tabacumL.) 和苜蓿 (Medicago sativaL.) 的细胞培养物中分析了菌根素（丛枝菌根真菌在玉米和其他草类中定殖后形成的黄色素的主要成分）和来自外生菌根真菌 Piloderma croceum 的皮质红素的生物活性。烟草和苜蓿悬浮细胞培养物通过使培养基碱化并产生活性氧来对引发剂处理产生反应，即所谓的氧化爆发。在本研究中，添加皮质红素抑制了激发子诱导的氧化爆发反应，但不抑制碱化。皮质红素对氧化爆发的抑制是剂量依赖性的。甲基化或游离形式的霉霉素对氧化爆发或碱化没有影响。
The biological activities of mycorradicin, the major component of the yellow pigment formed in maize and other grasses upon colonization by arbuscular mycorrhizal fungi, and corticrocin from the ectomycorrhizal fungusPiloderma croceumwere analysed in cell cultures of tobacco (Nicotiana tabacumL.) and alfalfa (Medicago sativaL.). Tobacco and alfalfa suspension cell cultures react to elicitor treatment by alkalinization of the culture medium and generation of activated oxygen species, the so-called oxidative burst. In the present study, the addition of corticrocin suppressed the elicitor-induced oxidative burst reaction but not the alkalinization. The suppression of the oxidative burst by corticrocin was dose dependent. Mycorradicin in either its methylated or free form had no effect on the oxidative burst or the alkalinization.