Heat stress protection in Aspen sp1 transgenic Arabidopsis thaliana

• Published in: BMB reports Vol. 41; no. 5; pp. 382 - 387
• Main Authors: Zhu, Bo, Xiong, Ai-Sheng, Peng, Ri-He, Xu, Jing, Zhou, Jun, Xu, Jin-Tao, Jin, Xiao-Fen, Zhang, Yang, Hou, Xi-Lin, Yao, Quan-Hong
• Format: Journal Article
• Language: Korean
• Published: 생화학분자생물학회 31.05.2008
• Subjects: Chlorophy2; Chlorophy2 fluorescence; High temperature stress; Malondialdehyde; Proline; Stable protein 1; Water content; ChlorophyII; ChlorophyII fluorescence; Water content; Proline; High temperature stress; Malondialdehyde; Stable protein 1
• ISSN: 1976-6696; 1976-670X

It is known that the stable protein 1 (SP1) detected in aspen plants remains soluble upon boiling and that sp1 expression in transgenic aspen is resistant to salt stress. Presently, we analyzed the effect of expression of SP1 in Arabidopsis thaliana plants and their response to high temperature stress. After $45^{\circ}C$ for 16 h, relative to wild type plants, sp1 transgenic plants exhibited stronger growth and were better in several physiological properties including chlorophyII, chlorophyII fluorescence, water content, proline content, and malondialdehyde content. These preliminarily results suggest that the over-expression of SP1 may notably enhance heat-tolerant level of transgenic A. thaliana plants.