Chin Bull Bot ›› 2014, Vol. 49 ›› Issue (3): 282-291.doi: 10.3724/SP.J.1259.2014.00282

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Effect of Soil Water Stress on Chlorophyll Fluorescence and Antioxidant Enzyme Activity in Reaumuria soongorica Seedlings

Dongmei Geng1, Lishan Shan1, Yi Li1*, Жигунов Анатолий Васильевич2   

  1. 1College of Forestry Science, Gansu Agricultural University, Lanzhou 730070, China

    2Saint Petersburg Academy of Forestry Sciences, Saint Petersburg, 191028
  • Received:2013-08-01 Revised:2013-11-03 Online:2014-06-03 Published:2014-05-01
  • Contact: Yi Li E-mail:liyi@gsau.edu.cn

Abstract: We investigated the effect of different soil water stress on chlorophyll fluorescence variables, chlorophyll content and antioxidant enzyme activities in 2-year-old Reaumuria soongorica seedlings. Chlorophyll content significantly decreased with increasing soil water stress. Compared with the control, under medium water stress and severe water stress, chlorophyll content decreased by 15.3% and 25.7%, respectively; and Chl a and Chl b increased by 7.4% and 36.9%, respectively. Thus, under soil water stress conditions, the chlorophyll content and the content of Chl (a/b) binding proteins (LHCII) decreased, the capture of leaf to light energy was reduced, and the risk of photosynthetic apparatus damage was reduced. Fo increased with increasing soil water stress, however Fm, Fv/Fo and Fv/Fm decreased. Thus, soil water stress could cause a certain degree of damage or fracture to its PSII reaction center. Soil water stress produced some changes in antioxidant enzyme activity and malondialdehyde (MDA) content, so R. soongorica shows good tolerance to soil water stress.

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[1] Lu Zhong-shu. Plant Growth Regutators in Relation to Plant Water Status[J]. Chin Bull Bot, 1985, 3(04): 1 -6 .
[2] Li Da Jue;Han Yun-zhou and Wan Li-ping. Studies on Germplasm Collections of Carthamus tinctorius IV Screening of the characterization of Seed Domancy[J]. Chin Bull Bot, 1990, 7(02): 50 -52 .
[3] . [J]. Chin Bull Bot, 1999, 16(增刊): 45 -46 .
[4] LU Jin-Yao;LUO Ai-Ling and LIANG Zheng. Some Improvement of TD-PAGE Technology[J]. Chin Bull Bot, 1998, 15(03): 69 -72 .
[5] LI Ling-Hao and CHEN Zuo-Zhong. The Global Carbon Cycle in Grassland Ecosystems and Its Responses to Global Change I . Carbon Flow Compartment Model, Inputs and Storage[J]. Chin Bull Bot, 1998, 15(02): 14 -22 .
[6] Huanhuan Xu, Jian Kang, Mingxiang Liang. Research Advances in the Metabolism of Fructan in Plant Stress Resistance[J]. Chin Bull Bot, 2014, 49(2): 209 -220 .
[7] . [J]. Chin Bull Bot, 2013, 48(1): 4 -5 .
[8] . [J]. Chin Bull Bot, 1996, 13(专辑): 45 .
[9] SHU Qun-Fang;ZHOU Lu;LI Wen-Bin;ZHANG LI-Ming and SUN Yong-Ru. Study on Gel Electrophoresis of Protein from Plant and Our Improved Methods[J]. Chin Bull Bot, 1998, 15(06): 73 -78 .
[10] ZHANG Zhi-Dong, ZANG Run-Guo. PREDICTING POTENTIAL DISTRIBUTIONS OF DOMINANT WOODY PLANT KEYSTONE SPECIES IN A NATURAL TROPICAL FOREST LANDSCAPE OF BAWANGLING, HAINAN ISLAND, SOUTH CHINA[J]. Chin J Plan Ecolo, 2007, 31(6): 1079 -1091 .