Ren Li-Li, Gao Hui-Yuan
College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China.
Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao. 2007 Aug;33(4):333-40.
By simultaneously analyzing chlorophyll a fluorescence transient and light absorbance at 820 nm, and detecting activities of superoxide dismutase (SOD) and ascorbate peroxidase (APX), the effects of chilling stress under weak light on functions of photosystem I (PSI) and photosystem II (PSII) in leaves of a wild type soybean variety 'ZYD00019' and a cultivar soybean variety 'Zaoshu No.1' were investigated. The results showed that the functions of both PSI and PSII were damaged by the chilling stress under weak light. The higher tolerance to chilling stress under weak light in the wild soybean might be due to its higher activities of SOD and APX and its stability and coordination of its PSI and PSII.
通过同时分析叶绿素a荧光瞬变和820 nm处的光吸收，并检测超氧化物歧化酶（SOD）和抗坏血酸过氧化物酶（APX）的活性，研究了弱光下低温胁迫对野生型大豆品种‘ZYD00019’和栽培大豆品种‘早熟1号’叶片中光系统I（PSI）和光系统II（PSII）功能的影响。结果表明，弱光下的低温胁迫损害了PSI和PSII的功能。野生大豆对弱光下低温胁迫的耐受性较高，可能是由于其较高的SOD和APX活性以及其PSI和PSII的稳定性与协调性。
