Physiological responses of seedling roots of the desert plant Reaumuria soongorica to drought stress

doi:10.11686/cyxb20150110

Abstract

Abstract: The physiological responses of seedling roots to drought stress were investigated in the desert plant Reaumuria soongorica from two provenances: highly drought resistant (Wuwei) and weakly drought resistant (Lanzhou). Under drought stress, root vigor, relative permeability of plasma (RPP), contents of proline (Pro),soluble sugars (SS),soluble protein (SP),malondialdehyde (MAD) and activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT)were measured with two-year nursery stocks. Grey correlative analysis was used to analyse drought resistance and its correlation with indexes of roots. Root vigor decreased significantly under drought stress, while RPP and the contents of MDA, Pro, SS and SP, the activities of SOD, POD and CAT of roots increased significantly. Germplasm of highly drought-resistant provenance (Wuwei) was more sensitive to drought stress than germplasm of weakly drought-resistant provenance (Lanzhou). The grey correlative degrees for root vigor, RPP and Pro and drought resistance were greater than 0.9. However, R. soongorica enhanced drought resistance through a wider series of physiological variations, beyond these three.

CHONG Peifang, LI Hangyi, LI Yi. Physiological responses of seedling roots of the desert plant Reaumuria soongorica to drought stress[J]. Acta Prataculturae Sinica, 2015, 24(1): 72-80.

References

[1] Jia W, Zhang J.Stomatal movements and long-distance signaling in plants. Plant Signaling and Behavior, 2008, 3: 772-777.
[2] Li L H, Li S Q, Zai J H, et al . Review of the relationship between wheat roots and water stress. Acta Botanica Boreali-occidentalia Sinica, 2001, 21(1): 1-7.
[3] Wei X, Wang Z Q, Zhang G Z, et al . Physiological and biochemical responses of different order roots in Fraxinus mandshurica seedlings to drought stress. Sciertia Silvea Sinicae, 2009, 45(6): 16-21.
[4] Liu J Q, Qiu M X, Pu J C, et al . The typicai extreme xerophyte—— Reaumuria soongorica in the desert of China. Journal of Integrative Plant Biology, 1982, 24(5): 485-488.
[5] Ma M H, Kong L S. The bioecological characteristics of Reaumuria soongorica on the border of oasis at Hutubi, Xinjiang. Acta Phytoecologica Sinica, 1998, 22(3): 237-244.
[6] Huang P Y, Nie X P. Study on the habitat of Reaumuria soongorica community in Zhungger Basin. Journal of Xinjiang University(Natural Science Edition), 1988, 5(3): 66-71.
[7] Zeng Y J, Wang Y R, Bao P. Study on the effects of soil temperature, soil moisture content, sowing depth, and sand cover on seed germination and seedling growth of Reaumuria soongorica and Zygophyllum xanthoxylum . Acta Pratacultural Science, 2005, 14(5): 24-31.
[8] Chong P F,Su S P, Li Y. Comprehensive evaluation of drought resistance of Reaumuria soongorica from four geographical populations. Acta Prataculturae Sinica, 2011, 20(5): 26-33.
[9] Li C Z, Zuo L P, Li Y. Physiological responses in leaves of Reaumuria soongorica from different altitudes under osmotic stress. Acta Prataculturae Sinica, 2013, 22(1): 176-182.
[10] Jia R L, Zhou H Y, Tan H J. Preliminary studies on diurnal variances of physio-ecological characteristics of photosynthesis of two extreme xerophytes—— Reaumuria soongorica and salsola passerina. Journal of Desert Research, 2006, 26(4): 631-636.
[11] Feng L L, Tang H, Li Y. Analysis of genetic diversity in Reaumuria soongorica populations in Gansu using ISSR markers. Acta Prataculturae Sinica, 2011, 20(1): 125-130.
[12] Liu Y B, Zhang T G, Li X R. Proetctive mechanism of desiccation tolernance in Reaumuria soongorica : leaf abscission and sucrose accumulation in the stem. Science in China (Series C: Life Sciences), 2006, 36(4): 328-333.
[13] Shan L S, Li Y, Dong Q L. Ecological adaptation of Reaumuria soongorica root system architecture to arid environment. Journal of Desert Research, 2012, 32(5): 1283-1290.
[14] Chong P F, Su S P, Li Y. Physiological responses to PEG stress of Reaumuria soongorica seedlings from different geographical origins. Acta Prataculturae Sinica, 2013, 22(1): 183-192.
[15] Zhao S J, Shi G A, Dong X C. Plant Physiology Experimental Direction[M]. Beijing: Chinese Agricultural Science and Technology Press, 2002: 45-48.
[16] Li H S. Plants Physiology and Biochemistry Experimental Theory and Technology[M]. Beijing: Higher Education Press, 2001: 51-54.
[17] Hao Z B, Cang J, Xu Z. Plant Physiology Experiment[M]. Harbin: Harbin University Press, 2004: 101-108.
[18] Wang X K, Zhang W H, Hao Z B. The Principle and Technology of Plant Physiology and Biochemistry[M]. Beijing: Higher Education Press, 2006: 20.
[19] Bai Z L. The correlate degree of grey sequences. Systems Fngineering, 1993, 32:119-122.
[20] Wang W, Jiang W L, Xie Z K. Study on soil water in rhizosphere and root system distribution of Nitraria tangutorum on loess plateau. Acta Prataculturae Sinica, 2013, 22(1): 22-28.
[21] Shan C J, Xu X J, Han Z J. Effect of water stress on the growth characteristics of luomai 9133 seedling. Journal of Henan Institute of Science and Technology (Natural Sciences Edition), 2006, 15(4): 129-132.
[22] Qiu Z J, Li Y, Chong P F. Effects of PEG stress on physiological characteristics of Calligonum mongolicum in different geographical provenance. Acta Prataculturae Sinica, 2011, 31(5): 1231-1237.
[23] Wang R, Sun G Y. Effects of soil drought on trigonelline content and capacity of osmotic adjustment in leaves of two soybean varieties. Journal of Desert Research, 2010, 30(3): 552-555.
[24] Li D Q, Zou Q, Cheng B H. Osmotic adjustment and osmotica of wheat cultivars with different drought resistance under soil drought. Plant Physiology Journal, 1992, 18(1): 37-44.
[25] Hu C W, Zhang X K, Zou X L. Root structure and drought tolerance of Rapeseed under PEG imposed drought. Chinese Journal of Oil Crop Sciences, 2013, 35(1): 48-53.
[2] 李鲁华, 李世清, 翟军海, 等. 小麦根系与土壤水分胁迫关系的研究进展. 西北植物学报, 2001, 21(1): 1-7.
[3] 卫星, 王政权, 张国珍, 等. 水曲柳苗木不同根序对干旱胁迫的生理生化反应. 林业科学, 2009, 45(6): 16-21.
[4] 刘家琼, 邱明新, 蒲锦春, 等. 我国典型超旱生植物——红砂. 植物学报, 1982, 24(5): 485-488.
[5] 马茂华, 孔令韶. 新疆呼图壁绿洲外缘的琵琶柴生物生态学特性研究. 植物生态学报, 1998, 22(3): 237-244.
[6] 黄培祐, 聂湘萍. 准噶尔盆地中部琵琶柴群落的生境研究. 新疆大学学报, 1988, 5(3): 66-71.
[7] 曾彦军, 王彦荣, 保平, 等. 几种生态因子对红砂和霸王种子萌发与幼苗生长的影响. 草业学报, 2005, 14(5): 24-31.
[8] 种培芳, 苏世平, 李毅. 4个地理种群红砂的抗旱性综合评价. 草业学报, 2011, 20(5): 26-33.
[9] 李朝周, 左丽萍, 李毅, 等. 两个海拔分布下红砂叶片对渗透胁迫的生理响应. 草业学报, 2013, 22(1): 176-182.
[10] 贾荣亮, 周海燕, 谭会娟, 等. 超旱生植物红砂与珍珠光合生理生态日变化特征初探. 中国沙漠, 2006, 26(4): 631-636.
[11] 冯亮亮, 唐红, 李毅, 等. 甘肃红砂不同种群遗传多样性的ISSR分析. 草业学报, 2011, 20(1): 125-130.
[12] 刘玉冰, 张腾国, 李新荣, 等. 红砂忍耐极度干旱的保护机制: 叶片脱落和茎中蔗糖累积. 中国科学(C辑生命科学), 2006, 36(4): 328-333.
[13] 单立山, 李毅, 董秋莲, 等. 红砂根系构型对干旱的生态适应. 中国沙漠, 2012, 32(5): 1283-1290.
[14] 种培芳, 苏世平, 李毅, 等. 不同地理种源红砂幼苗对PEG胁迫的生理响应. 草业学报, 2013, 22(1): 183-192.
[15] 赵世杰, 史国安, 董新纯. 植物生理实验指导[M]. 北京: 中国农业科学技术出版社, 2002: 45-48.
[16] 李合生. 植物生理生物实验理论与技术[M]. 北京: 高等教育出版社, 2001: 51-54.
[17] 郝再彬, 苍晶, 徐仲. 植物生理实验[M]. 哈尔滨: 哈尔滨大学出版社, 2004: 101-108.
[18] 王学奎, 章文华, 郝再彬. 植物生理生化原理与技术[M]. 北京: 高等教育出版社, 2006: 20.
[19] 白振兰. 灰色关联分析研究综述. 灰色系统理论与实践, 1993, 32: 119-122.
[20] 王文, 蒋文兰, 谢忠奎, 等. 黄土丘陵地区唐古特白刺根际土壤水分与根系分布研究. 草业学报, 2013, 22(1): 22-28.
[21] 单长卷, 徐新娟, 韩占江. 土壤干旱对洛麦 9133幼苗根系生理特性的影响. 西北农业学报, 2006, 15(4): 129-132.
[22] 邱真静, 李毅, 种培芳, 等. 基于PEG胁迫响应的不同地理种源沙拐枣抗旱性评价. 中国沙漠, 2011, 31(5): 1231-1237.
[23] 王蕊, 孙广玉. 干旱对大豆叶片葫芦巴碱含量和渗透调节的影响. 中国沙漠, 2010, 30(3): 552-555.
[24] 李德全, 邹琦, 程炳蒿. 土壤干旱下不同抗旱性小麦品种的渗透调节和渗透调节物质. 植物生理学报, 1992, 18(1): 37-44.
[25] 胡承伟, 张学昆, 邹锡玲, 等. PEG模拟干旱胁迫下甘蓝型油菜的根系特性与抗旱性. 中国油料作物学报, 2013, 35(1): 48-53.