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Volume 10 Issue 4
Jul.  2019
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YUE Kun, WANG Hong, GUO Yujian, ZHOU Kaibing. Damages to the Photosynthetic Tissue Structure of Mango Leaves by Enhanced UV-B Radiation[J]. Journal of Tropical Biology, 2019, 10(4): 324-330. doi: 10.15886/j.cnki.rdswxb.2019.04.004
Citation: YUE Kun, WANG Hong, GUO Yujian, ZHOU Kaibing. Damages to the Photosynthetic Tissue Structure of Mango Leaves by Enhanced UV-B Radiation[J]. Journal of Tropical Biology, 2019, 10(4): 324-330. doi: 10.15886/j.cnki.rdswxb.2019.04.004

Damages to the Photosynthetic Tissue Structure of Mango Leaves by Enhanced UV-B Radiation

doi: 10.15886/j.cnki.rdswxb.2019.04.004
  • Received Date: 2019-04-05
  • Rev Recd Date: 2019-05-28
  • In order to study the mechanism of the change of tissue morphology in the effect of enhanced UV-B radiation on photosynthesis of mango leaves, robust mango trees of "Tainong No.1" were treated with UV-B UV lamp at the doses of 24 kJ·m-2·d-1(low dose) and the 96 kJ·m-2·d-1(high dose) to simulate enhanced UV-B radiation in the field. The changes of tree yield and main fruit quality, leaf photosynthetic physiological indexes and leaf microstructure were observed. The results showed that the high-dose treatment resulted in a significant decrease in tree yield and a significant decrease in fruit quality. Low-dose treatment had no significant effect on tree yield and fruit quality. The high-dose treatment reduced the net photosynthetic rate, transpiration rate and stomatal conductance of the leaves, and the difference between the low-dose treatment and the control was not significant. The high-dose treatment resulted in fragmentation of leaf palisade tissue cells into small cells which were mixed with sponge tissue cells. The sponge tissue cells became larger and the cell gap became wider. The low-dose treatment resulted in production of shorter and thicker palisade cells but with structural integrity. The high-dose treatment resulted in significant thickening of the cuticle on the surface of the leaves compared to the control, while cuticle thickening in the low-dose treatment was not significant. It can be seen that high-dose treatment inhibits leaf photosynthesis by destroying the photosynthetic structure of mesophyll, and hinders the absorption of carbon dioxide and transpiration by thickening the surface of the leaf surface, thereby causing the trees to reduce yield and the quality of the fruit; The low-dose treatment had a certain influence on the leaf microstructure, the basic structure of which was not destroyed, and had no significant effect on photosynthesis. Therefore, the low dose treatment had no significant effect on tree yield and fruit quality.
  • [1] COLDWELL M M,FLINT S D.Stratospheric ozone reduction,solar UV-B radiation and terrestrial ecosystem[J].Climate Change,1994,27(2):375-394.
    [2] 刘鹏,徐迟默,罗微,等.增强UV-B辐射对芒果离体叶片染色体的损伤[J].植物生理学报,2012,48(2):161-165.
    [3] KATARIA S,JAJOO A,GURUPRASAD K N.Impact of increasing ultraviolet-B (UV-B) radiation on photosynthetic processes[J].Journal of Photochemistry and Photobiology,Biology,2014,137:55-66.
    [4] FENG H Y,AN L Z,TAN L L,et al.Effect of enhanced ultraviolet-B radiation on pollen germination and tube growth of 19 taxa In Vitro[J].Environmental and Experimental Botany,2000,43:45-53.
    [5] 刘鹏,周开兵,王爽,等.芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应[J].热带生物学报,2010,1(4):350-356.
    [6] 刘鹏,周开兵,丁姗,等.UV-B辐射下离体芒果成年叶抗氧化响应[J].山地农业生物学报,2010,29(5):397-402.
    [7] 周开兵,李世军,袁孟玲.增强UV-B辐射对芒果株产和果实品质及光合作用的影响[J].热带作物学报,2018,39(6):1102-1107.
    [8] 李世军,王茗,袁孟玲,等.‘台农一号’芒果果实体积的非离体测定及果实体积与风味品质的关系[J].热带生物学报,2016,7(4):444-449.
    [9] 袁孟玲,岳堃,王红,等.‘台农一号’芒果成年树在增强UV-B辐射处理下的损伤及其抗氧化响应[J].热带作物学报,2018,39(9):1724-1731.
    [10] 袁孟玲,岳堃,王红,等.增强UV-B辐射对芒果成年树光合作用及其产量与常规品质的影响[J].南方农业学报,2018,49(5) 930-937.
    [11] 胡文新,彭少兵,高荣孚,等.国际水稻研究所新株型水稻的气孔特性[J].中国农业科学,2002(10):1286-1290.
    [12] 王进,张静,杨景辉,等.UV-B辐射增强对棉花叶片显微结构的影响[J].新疆农业科学,2010,47(8):1619-1626.
    [13] 祭美菊,冯虎元,安黎哲,等.增强的UV-B辐射对植物影响的研究[J].应用生态学报,2002(3):359-364.
    [14] LIU Qing,YAO Xiaoqin,ZHAO Chunzhang,et al.Effects of enhanced UV-B radiation on growth and photosynthetic responses of four species of seedling in subalpine forests of the eastern Tibet plateau[J].Environmental and Experimental Botany,2011,74:151-156.
    [15] 何承刚,綦世飞,邵建平,等.增强UV-B辐射对两个烤烟品种生长和叶片解剖结构的影响[J].中国烟草学报,2012,18(5):34-38.
    [16] SURABHI G,REDDY K R,SINGH S K.Photosynthesis,fluorescence,shoot biomass and seed weight responses of three cowpea (Vigna unguiculata L.walp.) cultivars with contrasting sensitivity to UV-B radiation[J].Environmental and Experimental Botany,2009,66(2):160-171.
    [17] 高天鹏,安黎哲,冯虎元.增强UV-B辐射和干旱对不同品种春小麦生长、产量和生物量的影响[J].中国农业科学,2009,42(6):1933-1940.
    [18] 包龙丽,何永美,祖艳群,等.大田条件下增强UV-B辐射对元阳梯田2个地方水稻品种叶片形态解剖结构的影响[J].生态学杂志,2013,32(4):882-889.
    [19] KAKANI V G,REDDY K R,ZHAO D,et al.Effects of ultraviolet-B radiation on cotton (Gossypium hirsutum L.) morphology and anatomy[J].Annals of Botany,2003,91(7):817-826.
    [20] 戴素英.大白菜叶片染色制片技术[J].河北农业科学,1991(1):20-21.
    [21] 李惠民,胡洁,贺军民.磷脂酰肌醇3-磷酸对UV-B诱导蚕豆保卫细胞中过氧化氢产生和气孔关闭的影响[J].中国农业科学,2013,46(20):4246- 4253.
    [22] HE J M,XU H,SHE X P,et al.The role and the interrelationship of hydrogen peroxide and nitric oxide in the UV-B-induced stomatal closure in broad bean[J].Functional Plant Biology,2005,32:237-247.
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Damages to the Photosynthetic Tissue Structure of Mango Leaves by Enhanced UV-B Radiation

doi: 10.15886/j.cnki.rdswxb.2019.04.004

Abstract: In order to study the mechanism of the change of tissue morphology in the effect of enhanced UV-B radiation on photosynthesis of mango leaves, robust mango trees of "Tainong No.1" were treated with UV-B UV lamp at the doses of 24 kJ·m-2·d-1(low dose) and the 96 kJ·m-2·d-1(high dose) to simulate enhanced UV-B radiation in the field. The changes of tree yield and main fruit quality, leaf photosynthetic physiological indexes and leaf microstructure were observed. The results showed that the high-dose treatment resulted in a significant decrease in tree yield and a significant decrease in fruit quality. Low-dose treatment had no significant effect on tree yield and fruit quality. The high-dose treatment reduced the net photosynthetic rate, transpiration rate and stomatal conductance of the leaves, and the difference between the low-dose treatment and the control was not significant. The high-dose treatment resulted in fragmentation of leaf palisade tissue cells into small cells which were mixed with sponge tissue cells. The sponge tissue cells became larger and the cell gap became wider. The low-dose treatment resulted in production of shorter and thicker palisade cells but with structural integrity. The high-dose treatment resulted in significant thickening of the cuticle on the surface of the leaves compared to the control, while cuticle thickening in the low-dose treatment was not significant. It can be seen that high-dose treatment inhibits leaf photosynthesis by destroying the photosynthetic structure of mesophyll, and hinders the absorption of carbon dioxide and transpiration by thickening the surface of the leaf surface, thereby causing the trees to reduce yield and the quality of the fruit; The low-dose treatment had a certain influence on the leaf microstructure, the basic structure of which was not destroyed, and had no significant effect on photosynthesis. Therefore, the low dose treatment had no significant effect on tree yield and fruit quality.

YUE Kun, WANG Hong, GUO Yujian, ZHOU Kaibing. Damages to the Photosynthetic Tissue Structure of Mango Leaves by Enhanced UV-B Radiation[J]. Journal of Tropical Biology, 2019, 10(4): 324-330. doi: 10.15886/j.cnki.rdswxb.2019.04.004
Citation: YUE Kun, WANG Hong, GUO Yujian, ZHOU Kaibing. Damages to the Photosynthetic Tissue Structure of Mango Leaves by Enhanced UV-B Radiation[J]. Journal of Tropical Biology, 2019, 10(4): 324-330. doi: 10.15886/j.cnki.rdswxb.2019.04.004
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