Hsieh H M, Liu W K, Chang A, Huang P C
Department of Life Science, National Tsing Hua University, Hsin-chu, Taiwan, ROC.
Plant Mol Biol. 1996 Nov;32(3):525-9. doi: 10.1007/BF00019104.
A type 2 metallothionein-like gene from rice, OsMT-2 (Oryza sativa metallothionein-like gene-2), was isolated in its cDNA form and sequenced. By northern analyses OsMT-2 expression was shown to be induced under stress by sucrose starvation, heat shock and, to a lesser extent, abscisic acid, but not excess metals, including copper. Its response to sucrose starvation was transient and different from OsMT-1, a type 1 metallothionein-like gene of rice inducible by copper. These results suggest that while OsMT-2 is also involved in cellular response to stress, its function may be complementary to that of OsMT-1.
从水稻中分离出一种2型类金属硫蛋白基因，即OsMT - 2（水稻类金属硫蛋白基因-2），并对其cDNA形式进行了测序。通过Northern分析表明，OsMT - 2的表达在蔗糖饥饿、热激胁迫下被诱导，在较小程度上也受脱落酸诱导，但不受包括铜在内的过量金属诱导。它对蔗糖饥饿的反应是短暂的，且与OsMT - 1不同，OsMT - 1是水稻中一种受铜诱导的1型类金属硫蛋白基因。这些结果表明，虽然OsMT - 2也参与细胞对胁迫的反应，但其功能可能与OsMT - 1互补。
