Na2CO3胁迫下星星草幼苗叶片电解质外渗率与PSⅡ光能耗散的关系

摘要/Abstract

摘要： 用荧光动力学的方法探讨Na₂CO₃胁迫下星星草幼苗叶片电解质外渗率与PSⅡ光能耗散的关系。结果表明,随着星星草幼苗叶片电解质外渗率的增大,PSⅡ的最大光化学效率(Fv/Fm)和潜在光化学效率(Fv/Fo)呈逐渐减小的趋势。同时,当电解质外渗率小于0.2时,PSⅡ实际光化学效率(ΦPSⅡ)、电子传递速率(ETR)、光化学淬灭系数(qP)、光化学速率(PR)、捕光色素的光能被用于热耗散的相对份额(HD)、热耗散速率(HDR)都随着电解质外渗率的增大而增大;而当电解质外渗率超过0.2时,PSⅡ实际光化学效率(ΦPSⅡ)、电子传递速率(ETR)、光化学淬灭系数(qP)、光化学速率(PR)却随着电解质外渗率的增大而减小。另一方面,电解质外渗率在小于0.15时,非光化学淬灭系数(qNP)一直在增加,但是当电解质外渗率超过0.15时,qNP却减少。本试验结果说明当电解质外渗率在一定范围内,星星草通过增加热耗散以及增加捕光色素吸收的光能被用于热耗散的相对份额(HD)和热耗散速率(HDR)来改善PSⅡ的功能,由此引起的活性氧增加则由体内较高的保护酶来清除,若超过了一定阈值则抑制了PSⅡ的功能,或者说PSⅡ系统可能遭受了不可逆损伤。

Abstract: Fluorescence induction kinetics was used to investigate the relationship between electrolyte leakage and light energy dissipation of PSII in the leaves of Puccinellia tenuiflora seedlings under Na₂CO₃ stress. The maximal photochemical efficiency of PSII (Fv/Fm) and potential photochemical efficiency (Fv/Fo) decreased as electrolyte leakage increased. Actual photochemical efficiency of PSII in the light (ΦPSII), electron transfer rate (ETR), the photochemical quenching coefficient(qP), photochemical efficiency (PR), heat dissipation (HD) and heat dissipation rate (HDR) increased when electrolyte leakage was less than 0.2. However, ΦPSII, ETR, qP and PR decreased when electrolyte leakage was more than 0.2. The dividing line for effectual control of P. tenuiflora appeared to be an electrolyte leakage of 0.2. The non-photochemical quenching coefficient (qNP) increased when electrolyte leakage was less than 0.15, while qNP decreased when electrolyte leak was over 0.15. Thus the inflexion of qNP appeared to be an electrolyte leakage of 0.15, whereas that for ΦPSII, ETR, qP and PR was 0.2. This could explain the regulation ability of effectual heat dissipation when electrolyte leakage was less than 0.15 and why the ability of heat dissipation reduced when electrolyte leakage was over 0.15. The results showed that P. tenuiflora improved the function of PSII by increased heat dissipation and light energy absorbion by light-harvesting pigment, resulting in the augmentation of active oxygen elimination by antioxidant enzyme systems when electrolyte leak was in a certain range. However, when electrolyte leakage exceeded this range, the functioning of PSII was inhibited or the PSII system suffered from irreversible damage.

中图分类号:

S543
Q945.78

张军,王建波,陈刚,杜坤,刘娟,孙国荣. Na₂CO₃胁迫下星星草幼苗叶片电解质外渗率与PSⅡ光能耗散的关系[J]. 草业学报, 2009, 18(3): 200-206.

ZHANG Jun, WANG Jian-bo, CHEN Gang, DU Kun, LIU Juan, SUN Guo-rong. The relationship between electrolyte leak and light energy dissipation of PSⅡ
in the leaves of Puccinellia tenuiflora seedlings under Na₂CO₃ stress[J]. Acta Prataculturae Sinica, 2009, 18(3): 200-206.

参考文献

[1]孙国荣, 彭永臻, 岳中辉, 等. 星星草的生长对盐碱土壤氮素营养的影响[J[. 草业学报, 2008, 17(1): 1-7.
[2]汪月霞, 孙国荣, 王建波, 等. Na₂CO₃与NaCl胁迫下星星草幼苗叶绿体保护酶活性的比较[J[. 草业学报, 2007, 16(1): 81-86.
[3]胡秀丽, 毛训甲. 叶绿素荧光动力学在研究植物逆境生理中的应用[J[. 经济林研究, 2002, 20(4): 14-30.
[4]Powle S B. Photoinhibition of photosynthesis induced by visible light[J[. Annual Review of Plant Physiology, 1984, 35: 15-44.
[5]Bjorkman O, Powle S B. Inhibition of photosynthetic reactions under water stress: Interactions with light level[J[. Planta, 1984,161:490-504.
[6]Aro E M, Virgin I, Anderson B. Photoinhibition and D1 protein degradation in peas acclimated to different growth irradiance[J[. Plant Physiology, 1993,103:835-843.
[7]Bongi G, Loreto F. Gas-exchange properties of salt-stressed olive (Olea europea L.) leaves[J[. Plant Physiology, 1989,90:1408-1416.
[8]Mishra S K, Subrahmanyam D, Singhal G S. Interactionship between salt and light stress on the primary process of photosynthesis[J[. Journal of Plant Physiology, 1991,138: 92-96.
[9]Masojidek J, Hall D O. Salinity and drought stresses are amplified by high irradiance in sorghum[J[. Photosynthetica, 1992, 27: 159-171.
[10]Belkhodja R, Morales F, Abadia A, et al. Chlorophyll fluorescence as a possible tool for salinity tolerance screening in barley (Hordeum vulgare L.)[J[. Plant Physiology, 1993,104: 667-673.
[11]Everard J D, Gucci R, Kann S C, et al. Gas exchange and carbon partitioning in the leaves of celery (Apium graveolens L.) at various levels of root zone salinity[J[. Plant Physiology, 1994,106: 281-292.
[12]Robinson S P, Downton W J S, Millhouse J. Photosynthesis and ion content of leaves and isolated chloroplasts of salt-stressed spinach[J[. Plant Physiology, 1983,73: 238-242.
[13]Brugnoli E, Bjrkman O. Growth of cotton under continuous salinity stress: influence on allocation pattern, stomatal and nonstomatal components of photosynthesis and dissipation of excess light energy[J[. Planta, 1992, 187: 335-345.
[14]Morales F, Abadia A, Gomez-Aparis J, et al. Effects of combined NaCl and CaCl₂ salinity on photosynthetic parameters of barley grown in nutrient solution[J[. Physiologia Plantarum, 1992, 86: 419-426.
[15]Abadia A, Belkohodja R, Morales F, et al. Effects of salinity on the photosynthetic pigment composition of barley (Hordeum vulgare L.) growth under a triple-line-source sprinkler system in the field[J[. Journal of Plant Physiology, 1999, 154: 392-400.
[16]刘友良, 毛才良, 汪良驹. 植物耐盐性研究进展[J[. 植物生理学通讯, 1987, 23(4): 1-7.
[17]Dionisio-Sese M L, Tobita S. Antioxidant response of rice seedlings to salinity stress[J[. Plant Science, 1998,135: 1-9.
[18]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.
[19]Peterson R B, Sivak M N, Walker D A. Relationship between steady-state fluorescence yield and photosynthetic efficiency in spinach leaf tissue[J[. Plant Physiology, 1988, 88: 158-163.
[20]Johson G N, Young A J, Scholes J D. The dissipation of excess excitation energy in British plant species[J[. Plant Cell and Environment, 1993, 16: 673-679.
[21]Bader M R, Ruuska S, Nakano H. Electron flow to oxygen in higher plants and algae: Rates and control of direct photoreduction (Mehler reaction) and rubisco oxygenase[J[. Biological Sciences, 2000, 14(2): 1433-1445.
[22]李朝周. CoCl₂对Na₂CO₃胁迫下苜蓿幼苗叶片细胞膜的保护作用[J[.草业学报, 2007, 16(3): 49-54.
[23]张秋英, 李发东, 刘孟雨. 水分胁迫对小麦旗叶叶绿素a荧光参数和光合速率的影响[J[. 干旱地区农业研究, 2002, 20(3): 80-84.
[24]Calatayud A, Barreno E. Response to ozone in two lettuce varieties on chlorophyll a fluorescence photosynthetic pigments and lipid peroxidation[J[. Plant Physiology and Biochemistry, 2004, 42: 549-555.
[25]Lu C M, Qiu A W, Lu Q T, et al. Does salt stress lead to increased susceptibility of photosystem Ⅱ to photoinhibition and changes in photosynthetic pigment composition in halophyte Suaeda salsa grown outdoors[J[. Plant Science, 2002, 163: 1063-1068.
[26]Demmig-Adams B, Adams W W III. Photoprotection and other responses of plants to high light stress[J[. Annual Review of Plant Physiology and Plant Molecular Biology, 1992, 43: 599-626.
[27]冯志力, 冯玉龙, 曹坤芳. 光强对砂仁叶片光合作用光抑制及热耗散的影响[J[. 植物生态学报, 2002, 26(1): 77-82.
[28]Colom M R, Vazzana C. Photosynthesis and PSⅡ functionality of drought-resistant and drought-sensitive weeping lovegrass plants[J[. Environmental and Experimental Botany, 2003, 49: 135-144.
[29]孙国荣, 关旸, 阎秀峰. 盐胁迫对星星草幼苗保护酶系统的影响[J[. 草地学报, 2001, 9(1): 34-38.

Na₂CO₃胁迫下星星草幼苗叶片电解质外渗率与PSⅡ光能耗散的关系

The relationship between electrolyte leak and light energy dissipation of PSⅡ
in the leaves of Puccinellia tenuiflora seedlings under Na₂CO₃ stress

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	贾新平,叶晓青,梁丽建,邓衍明,孙晓波,佘建明. 基于高通量测序的海滨雀稗转录组学研究[J]. 草业学报, 2014, 23(6): 242-252.
[2]	杨成德,王颖,王玉琴,姚玉玲,薛莉,徐长林,陈秀蓉. 东祁连山高寒草地几株醉马草内生细菌的生物功能评价及鉴定[J]. 草业学报, 2014, 23(5): 249-255.
[3]	王绍飞,黄琳凯,张新全,马啸. 连续混合选择下多花黑麦草杂交群体的SSR多样性变化[J]. 草业学报, 2014, 23(5): 345-351.
[4]	郑轶琦，郭琰，房淑娟，徐亚楠，陈静波，刘建秀. 利用表型数据构建狗牙根初级核心种质[J]. 草业学报, 2014, 23(4): 49-60.
[5]	郭郁频，米福贵，闫利军，任永霞，吕世杰，伏兵哲. 不同早熟禾品种对干旱胁迫的生理响应及抗旱性评价[J]. 草业学报, 2014, 23(4): 220-228.
[6]	孙凌霞，孙萍，蔡仕珍，李西. 四种冷季型草坪草对二氧化硫胁迫的生理响应研究[J]. 草业学报, 2014, 23(4): 237-244.
[7]	李佳岭，李龙保，廖宗文，刘天增，张巨明. 保水剂施用层次对草坪生长及土壤水肥的影响[J]. 草业学报, 2014, 23(4): 61-67.
[8]	杨海霞，刘润进，郭绍霞. AM真菌摩西球囊霉对盐胁迫条件下高羊茅生长特性的影响[J]. 草业学报, 2014, 23(4): 195-203.
[9]	吴娟子，张建丽，潘玉梅，刘智微，钟小仙. 象草和杂交狼尾草细胞壁组分及乙醇理论产量动态分析[J]. 草业学报, 2014, 23(4): 153-161.
[10]	罗栋,钱永强,刘俊祥,韩蕾,李伟,孙振元. 克隆植物野牛草对异质营养的表型可塑性响应[J]. 草业学报, 2014, 23(3): 104-109.
[11]	韩朝,刘洋,董慧,常智慧. 污泥对高羊茅抗旱性的影响研究[J]. 草业学报, 2014, 23(3): 127-135.
[12]	熊莉,徐振锋,吴福忠,杨万勤,殷睿,李志萍,倪祥银,熊海涛. 踩踏对亚热带沟叶结缕草草坪冬季休眠期土壤呼吸的影响[J]. 草业学报, 2014, 23(2): 83-89.
[13]	张怀山,赵桂琴,栗孟飞,夏曾润,王春梅. 中型狼尾草幼苗对PEG、低温和盐胁迫的生理应答[J]. 草业学报, 2014, 23(2): 180-188.
[14]	吴娜,胡跃高,任长忠,刘吉利. 两种灌溉方式下保水剂用量对春播裸燕麦土壤氮素的影响[J]. 草业学报, 2014, 23(2): 346-351.
[15]	蒋林峰，张新全，黄琳凯，马啸，严德飞，胡强，付玉凤. 鸭茅品种的SCoT遗传变异分析[J]. 草业学报, 2014, 23(1): 229-238.