Effects of canopy spectral composition on growth and photosynthetic fluorescence characteristics of Pinus koraiensis and Quercus mongolica seedlings
We investigated the responses of leaf and individual traits, growth, and fluorescence characteristics of seedlings of two dominant species of broad-leaved Korean pine forest in Changbai Mountain, i.e., Pinus koraiensis and Quercus mongolica, to five spectrum-attenuation treatments. Results showed that the architecture and growth of P. koraiensis and Q. mongolica seedlings were mainly regulated by ultraviolet B (UV-B) radiation and blue light. The attenuation of blue light significantly decreased leaf area ratio and relative growth rate of two species. The attenuation of UV-B radiation significantly increased leaf area ratio and relative growth rate of P. koraiensis seedlings by 41.8% and 47.7%, respectively, and significantly decreased plant height, total leaf area, and biomass accumulation of Q. mongolica seedlings. Furthermore, the attenuation of UV-B radiation significantly decreased the fluorescence regulation ability of two tree seedlings, with lower magnitude of P. koraiensis than Q. mongolica. The non-regulatory quantum yield (ΦNO) of P. koraiensis increased by 31.6%, and the ΦNPQ/ΦNO ratio, an indicator for photosynthetic fluorescence regulation ability, decreased by 37.5%. These results suggested that those two species might have evolved adaptation strategies to changes in canopy spectral compositions of their respective habitats. Q. mongolica seedlings tended to improve light capture ability through rapid morphological responses, while P. koraiensis seedlings preferred to increase carbon assimilation efficiency by adjusting fluorescence characteristics.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:33 |
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| Enthalten in: |
Ying yong sheng tai xue bao = The journal of applied ecology - 33(2022), 9 vom: 01. Sept., Seite 2314-2320 |
| Sprache: |
Chinesisch |
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| Weiterer Titel: |
冠层光谱组成对红松和蒙古栎幼苗生长和光合荧光特性的影响 |
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| Beteiligte Personen: |
Ma, Jing-Ran [VerfasserIn] |
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| Links: |
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| Themen: |
7440-44-0 |
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| Anmerkungen: |
Date Completed 23.09.2022 Date Revised 23.09.2022 published: Print Citation Status MEDLINE |
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| doi: |
10.13287/j.1001-9332.202209.006 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Effects of canopy spectral composition on growth and photosynthetic fluorescence characteristics of Pinus koraiensis and Quercus mongolica seedlings |
| 246 | 3 | 3 | |a 冠层光谱组成对红松和蒙古栎幼苗生长和光合荧光特性的影响 |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a We investigated the responses of leaf and individual traits, growth, and fluorescence characteristics of seedlings of two dominant species of broad-leaved Korean pine forest in Changbai Mountain, i.e., Pinus koraiensis and Quercus mongolica, to five spectrum-attenuation treatments. Results showed that the architecture and growth of P. koraiensis and Q. mongolica seedlings were mainly regulated by ultraviolet B (UV-B) radiation and blue light. The attenuation of blue light significantly decreased leaf area ratio and relative growth rate of two species. The attenuation of UV-B radiation significantly increased leaf area ratio and relative growth rate of P. koraiensis seedlings by 41.8% and 47.7%, respectively, and significantly decreased plant height, total leaf area, and biomass accumulation of Q. mongolica seedlings. Furthermore, the attenuation of UV-B radiation significantly decreased the fluorescence regulation ability of two tree seedlings, with lower magnitude of P. koraiensis than Q. mongolica. The non-regulatory quantum yield (ΦNO) of P. koraiensis increased by 31.6%, and the ΦNPQ/ΦNO ratio, an indicator for photosynthetic fluorescence regulation ability, decreased by 37.5%. These results suggested that those two species might have evolved adaptation strategies to changes in canopy spectral compositions of their respective habitats. Q. mongolica seedlings tended to improve light capture ability through rapid morphological responses, while P. koraiensis seedlings preferred to increase carbon assimilation efficiency by adjusting fluorescence characteristics | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a biomass allocation | |
| 650 | 4 | |a broad-leaved Korean pine forest | |
| 650 | 4 | |a light quality | |
| 650 | 4 | |a phenotypic plasticity | |
| 650 | 4 | |a photosynthetic fluorescence cha-racteristics | |
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| 700 | 1 | |a Wang, Ya-Nan |e verfasserin |4 aut | |
| 700 | 1 | |a Chang, Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Deng, Jiao-Jiao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Wang-Ming |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Da-Pao |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Qing-Wei |e verfasserin |4 aut | |
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