不同盐渍条件下海滨锦葵光合-光响应模型
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摘要
采用CIRAS-3便携式光合作用测定仪测定了不同盐渍条件下海滨锦葵在不同光强下的净光合速率。通过非直角双曲线模型、直角双曲线模型、指数模型和直角双曲线修正模型对光合参数和拟合曲线进行比较,探讨盐胁迫下海滨锦葵的光响应过程。结果表明,随着盐浓度的升高,海滨锦葵的净光合速率表现出先增高后降低的趋势。另外,从相对误差和决定系数来看,除了指数模型,其他3个模型在不同盐胁迫的海滨锦葵中均适用;发现随着盐浓度的升高,表观量子效率明显降低。对照条件下直角双曲线模型的拟合度最高,100 mmol·L~(-1)和300 mmol·L~(-1) NaCl处理条件下直角双曲线修正模型为海滨锦葵的最适模型,200 mmol·L~(-1) NaCl处理条件下非直角双曲线模型的拟合度最高。
The net photosynthetic rate was measured by CIRAS-3 portable photosynthesis tester under different light intensity after different salt stress. To investigate the light response process of Kostelezkya virginica under salt stress,the non-rectangular hyperbolic model,the rectangular hyperbolic model,the exponential model and the rectangular hyperbola modified model were used to compare the photosynthetic parameters and the fitting curves. With the aggravation of salt stress,the net photosynthetic rate of Kostelezkya virginica showed the trend of first increasing and then decreasing.Meanwhile,from the relative error and coefficient of determination,we found the other three models had some applicability to the Kostelezkya virginica under different salt stress, except the exponential model. With the increase of salt concentration,the apparent quantum efficiency decreased obviously. The rectangular hyperbolic model fitted the highest degree under contrast conditions. The rectangular hyperbola modified model was the most suitable light response model of Kostelezkya virginica under 100 mmol·L~(-1) and 300 mmol·L~(-1) NaCl treatments. The non-rectangular hyperbolic model fitted best at 200 mmol·L~(-1) NaCl salt treatment.
The net photosynthetic rate was measured by CIRAS-3 portable photosynthesis tester under different light intensity after different salt stress. To investigate the light response process of Kostelezkya virginica under salt stress,the non-rectangular hyperbolic model,the rectangular hyperbolic model,the exponential model and the rectangular hyperbola modified model were used to compare the photosynthetic parameters and the fitting curves. With the aggravation of salt stress,the net photosynthetic rate of Kostelezkya virginica showed the trend of first increasing and then decreasing.Meanwhile,from the relative error and coefficient of determination,we found the other three models had some applicability to the Kostelezkya virginica under different salt stress, except the exponential model. With the increase of salt concentration,the apparent quantum efficiency decreased obviously. The rectangular hyperbolic model fitted the highest degree under contrast conditions. The rectangular hyperbola modified model was the most suitable light response model of Kostelezkya virginica under 100 mmol·L~(-1) and 300 mmol·L~(-1) NaCl treatments. The non-rectangular hyperbolic model fitted best at 200 mmol·L~(-1) NaCl salt treatment.
引文
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[24]张子山,张立涛,高辉远,等.不同光强与低温交叉胁迫下黄瓜PSⅠ与PSⅡ的光抑制研究[J].中国农业科学,2009,42(12):4288-4293.
[25]王荣荣,夏江宝,杨吉华,等.贝壳砂生境干旱胁迫下杠柳叶片光合光响应模型比较[J].植物生态学报,2013,37(2):111-121.
[26]WHITE A J,CRITCHLEY C. Rapid light curves:A new fluo-rescence method to assess the state of the photosynthetic apparatus[J]. Photosynthesis Research,1999,59:63-72.
[2]黄昌勇.土壤学[M].北京:中国农业出版社,2000.
[3]LI J G,PU L J,HAN M,et al. Soil salinization research in China:Advances and prospects[J]. Journal of Geographical Sciences,2014,24(5):943-960.
[4]王全喜,张小平.植物学[M].北京:科学出版社,2012.
[5]徐国万,钦佩,谢民,等.海滨锦葵(Kostelezkya virginica)的引种生态学研究[J].南京大学学报,1996,32(2):268-273.
[6]党瑞红.海滨锦葵抗盐基础生理的研究[D].济南:山东师范大学,2007.
[7]尹增芳,何祯祥,陈梦阳,等.钙对Na Cl胁迫下海滨锦葵种子萌发和幼苗生长的缓解效应[J].西北植物学报,2006,26(3):462-466.
[8]闫道良,余婷,徐菊芳,等.盐胁迫对海滨锦葵生长及Na+、K+离子积累的影响[J].生态环境学报,2013,22(1):105-109.
[9]董轲,许亚萍,崔冰,等.不同钾素水平对海滨锦葵生长和光合作用的影响[J].植物生理学报,2015,51(10):1649-1657.
[10]汤晓丽.海滨锦葵盐胁迫转录组分析和抗盐基因研究[D].烟台:中国科学院烟台海岸带研究所,2016.
[11]王红艳,王鸿磊.海滨锦葵耐盐基因Kv SOS1的克隆与表达载体构建[J].江苏农业科学,2016,44(10):76-80.
[12]王宝山.植物生理学[M].北京:科学出版社,2003.
[13]THORNLEY J H M. Mathematical Models in Plant Physiology[M]. London:Academic Press1976.
[14]张雪松,申双和,宋洁.棉花叶片氮含量的空间分布与光合特性[J].生态学报,2009,29(4):1893-1898.
[15]BALY E C. The kinetics of photosynthesis[J]. Proceedings of the Royal Society of London Series B. 1935,117(804):218-239.
[16]BASSMAN J,ZWIER J C. Gas exchange characteristics of Populus trichocarpa,Populus deltoids and Populus trichocarpa×P.deltoids clone[J]. Tree Physiology,1991,8(2):145-159.
[17]黄红英,窦新永,孙蓓育,等.两种不同生态型麻疯树夏季光合特性的比较[J].生态学报,2009,29(6):2861-2867.
[18]王满莲,冯玉龙,李新.紫茎泽兰和飞机草的形态和光合特性对磷营养的响应[J].应用生态学报,2006,17(4):602-606.
[19]叶子飘,于强.一个光合作用光响应新模型与传统模型的比较[J].沈阳农业大学学报,2007,38(6):771-775.
[20]叶子飘.光合作用对光和CO2响应模型的研究进展[J].植物生态学报,2010,34(6):727-740.
[21]叶子飘,康华靖.植物光响应修正模型中系数的生物学意义研究[J].扬州大学学报(农业与生命科学版),2012,33(2):51-57.
[22]王伟,高捍东,陆小青.盐胁迫对中山杉无性系幼苗光响应曲线的影响[J].林业科技开发,2010,24(3):29-32.
[23]蒋高明.植物生理生态学[M].北京:高等教育出版,2004.
[24]张子山,张立涛,高辉远,等.不同光强与低温交叉胁迫下黄瓜PSⅠ与PSⅡ的光抑制研究[J].中国农业科学,2009,42(12):4288-4293.
[25]王荣荣,夏江宝,杨吉华,等.贝壳砂生境干旱胁迫下杠柳叶片光合光响应模型比较[J].植物生态学报,2013,37(2):111-121.
[26]WHITE A J,CRITCHLEY C. Rapid light curves:A new fluo-rescence method to assess the state of the photosynthetic apparatus[J]. Photosynthesis Research,1999,59:63-72.