Alves L M, Heisler E G, Kissinger J C, Patterson J M, Kalan E B
Eastern Regional Research Center, Federal Research, Science and Education Administration, United States Department of Agriculture, Philadelphia, Pennsylvania 19118.
Plant Physiol. 1979 Feb;63(2):359-62. doi: 10.1104/pp.63.2.359.
Levels of katahdinone (solavetivone), lubimin, rishitin, and phytuberin, sesquiterpenoid stress metabolites of white potato (Solanum tuberosum), were monitored in tuber slices which were challenged with an extract of Phytophthora infestans and incubated under controlled atmospheres. A mixture of ethylene in air enhanced stress metabolite production. This enhancement was amplified by higher partial pressures of oxygen. Stress metabolite production was inhibited by salicylhydroxamic acid. These results suggest the involvement of cyanide-resistant respiration in the production of potato stress metabolites, compounds which may serve as phytoalexins.
对马铃薯(茄属)的倍半萜类胁迫代谢产物卡塔丁酮(索拉维酮)、鲁比明、瑞斯托菌素和植物抗毒素进行了监测,将马铃薯块茎切片用致病疫霉提取物处理,并在可控气氛下培养。空气中的乙烯混合物可增强胁迫代谢产物的产生。较高的氧分压会放大这种增强作用。水杨羟肟酸可抑制胁迫代谢产物的产生。这些结果表明,抗氰呼吸参与了马铃薯胁迫代谢产物的产生,这些化合物可能作为植物抗毒素。