Effect of Aluminum Stress on Photosynthetic Characteristics and Chlorophyll Fluorescence Parameters of Watermelon Seedlings

doi:10.7668/hbnxb.2015.04.026

Abstract

Abstract: In the study,two watermelon varieties Zaomiwang (ZM) and Zaochunhongyu (HY) seedlings were used as materials to investigate the effect of aluminum(Al) on growth and physiological characteristics under different Al concentrations (0,250,500,1 000,1 500 μmol/L) treatment in order to find out the impact of aluminum stress on photosynthetic characteristics of watermelon.Changes in root length and biomass results showed that ZM was more sensitive to Al than HY.Effects on photosynthesis for the followed three aspects:Chlorophyll content of HY increased in the Al treatment.Chlorophyll content of ZM was higher than contrast only when Al concentration was 250 μmol/L.Chlorophyll a/b content of HY intended to decrease as long as the Al concentration increased;In the Al treatment,when concentration lower than 500 μmol/L the stomatal conductance (Gs),intercellular CO₂ concentration (Ci),net photosynthetic rate (Pn) and transpiration rate (Tr) of ZM was effected more obviously than those of HY.When Al concentration was above 1 000 μmol/L,the value of these four items all intended to fall down;Changes of Chlorophyll fluorescence in these two watermelon variety in the Al treatment (without Al³⁺=250 μmol/L concentration) were as follow:original fluorescence (Fo),maximum fluorescence (Fm),potential photochemical efficiency (Fv/Fo),photochemical maximum efficiency of PSⅡ (Fv/Fm) and the ability of leaves to transform energy Y(Ⅱ) decreased,while non-photochemical quenching (NPQ) increased,and leaves maintained a high actinic light energy distribution by adjusting the heat dissipation;In addition,photochemical quenching coefficient (qP) and electron transport rate (ETR) decreased.At Al³⁺≤250 μmol/L concentration,the four parameters of HY:Fo,Fm,Fv/Fo,Fv/Fm was more stable;with aluminum concentration increases,the electron transfer rate was less affected,NPQ relatively constant,that is able to maintain a constant light protection.

Key words: Citrullus lanatus, Aluminum stress, Photosynthetic characteristics, Chlorophyll fluorescence parameters

CLC Number:

S651.01

ZHENG Yang-xia, JIA Song-tao, ZHAO Ying-peng, ZHANG Wei-wei, SUN Yuan-xiu, QIU Shuang. Effect of Aluminum Stress on Photosynthetic Characteristics and Chlorophyll Fluorescence Parameters of Watermelon Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(4): 150-156. doi: 10.7668/hbnxb.2015.04.026.

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References

[1] 翁建华,黄连芬,刘晓茹,等.土壤酸化及天然土壤溶液中铝的形态[J].中国环境科学,2000,20(6):501-505.
[2] 黄昌勇.土壤学[M].北京:中国农业出版社,2000:171-173.
[3] 赵萌,李敏,王淼焱,等.西瓜连作对土壤主要微生物类群和土壤酶活性的影响[J].微生物学通报,2008,35(8):1251-1254.
[4] Faraloni C,Cutino I,Petruccelli R,et al.Chlorophyll fluorescence technique as a rapid tool for in vitro screening of olive cultivars (Olea europaea L.) tolerant to drought stress[J].Environmental and Experimental Botany,2011,73:49-56.
[5] Zribi L,Fatma G,Fatma R,et al.Application of chlorophyll fluorescence for the diagnosis of salt stress in tomato "Solanum lycopersicum (variety Rio Grande)"[J].Scientia Horticulturae,2009,120(3):367-372.
[6] Petkova V,Denev I D,Cholakov D,et al.Field screening for heat tolerant common bean cultivars (Phaseolus vulgaris L.) by measuring of chlorophyll fluorescence induction parameters[J].Scientia Horticulturae,2007,111(2):101-106.
[7] 贾松涛,郑阳霞,邱爽,等.铝胁迫对西瓜幼苗生长及生理特性的影响[J].农业环境科学学报,2014,33(8):1485-1492.
[8] 刘家尧,刘新.植物生理学实验教程[M].北京:高等教育出版社,2010.
[9] Cuddy W S,Summerell B A,Gehringer M M,et al.Nostoc,microcoleus and Leptolyngbya inoculums are detrimental to the growth of wheat (Triticum aestivum L.) under salt stress[J].Plant and Soil,2013,370(1-2):317-332.
[10] Foy C D,Carter T E J R,Duke J A,et al.Correlation of shoot and root growth and its role in selecting for Al tolerance in soybean[J].Plant Nutr,1993,16:305-325.
[11] 林咸永,章永松,罗安程.不同小麦基因型耐铝性的差异及筛选方法的研究[J].植物营养与肥料学报,2001,7(1):64-70.
[12] 肖祥希,刘星辉,杨宗武,等.铝胁迫对龙眼幼苗光合作用的影响[J].热带作物学报,2005,26(1):63-69.
[13] 于翠平,潘志强,陈杰,等.铝对茶树生长与生理特性影响的研究[J].植物营养与肥料学报,2012,18(1):182-187.
[14] Chenery E M.A preliminary study of Aluminum and the tea bush[J].Plant and Soil,1955,6(2):174-200.
[15] 陈香,胡雪华,肖宜安,等.铝胁迫下北美车前和车前生长及叶绿素荧光特性的比较研究[J].植物研究,2011,31(6):680-685.
[16] 应小芳,刘鹏.铝胁迫对大豆叶片光合特性的影响[J].应用生态学报,2005,16(1):166-170.
[17] 孙广玉,邹琦,程炳嵩,等.大豆光合速率和气孔导度对水分胁迫的响应[J].植物学报:英文版,1991,33(1):43-49.
[18] 郭礼和.美国《Science》杂志评出2011年十大科学突破-介绍光合系统Ⅱ的结构研究成果[J].中国细胞生物学学报,2012,34(3):295-297.
[19] Camejo D.Changes in the chlorophyll fluorescence parameters and superoxide dismutase activity during heat shock treatment and the recovery period in tomato plants[J].Instituto Nacional de Ciencias Agrícolas,2013,26(4):53-59.
[20] 张阿宏,齐孟文,张晔晖.调制叶绿素荧光动力学参数及其计量关系的意义和公理化讨论[J].核农学报,2008,22(6):909-912.
[21] 肖璐,魏亦农.不同陆地棉品种(系)盛花期叶片光抑制光保护机制[J].新疆农业科学,2013,50(7):1177-1184.
[22] Klughammer C,Schreiber U.Complementary PSⅡ quantum yields calculated from simple fluorescence parameters measured by PAM fluorometry and the Saturation Pulse method[J].PAM Application Notes,2008,1:27-35.
[23] 张守仁.叶绿素荧光动力学参数的意义及讨论[J].植物学通报,1999,16(4):444-448.

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