The Physio-ecological Response of Acanthus ilicifolius Seedlings to Different Degrees of Light Intensity in Tide Environment

LIU Bin-er; LIAO Bao-wen

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The Physio-ecological Response of Acanthus ilicifolius Seedlings to Different Degrees of Light Intensity in Tide Environment

LIU Bin-er¹,
LIAO Bao-wen¹

1.
Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China

Received Date: 2012-10-16

Abstract

By using tide simulation control system, the physio-ecological response of Acanthus ilicifolius Linn. seedlings to different light intensities (5%, 15%, 20%, 45%, 60%, 75% and 100% relative to natural light) from germination to the 10th month were studied. The results showed that as light intensity increased, the survival rate, height, ground diameter, dry weight of root, dry weight of stem, dry weight of leaf, individual biomass, root/shoot ratio, root vigor, leaf area and the content of chlorophyll a and b rose at first and then fell; the content of soluble sugar, net photosynthetic rate, water transpiration rate, stomatal conductance, maximum net photosynthetic rate rose. Under 30 minutes of immersion, the net photosynthetic rate rose and stomatal conductance decreased, all of which stabilized at a lower level than the initial rate. Most of physio-ecological indicators showed the seedlings grew well under the light intensity of 45%. The seedlings enhanced their efficiency of harvesting light by decreasing root/shoot ratio, light compensation point and increasing height, leaf area, apparent quantum efficiency and the content of chlorophyll a and b with the light intensity of 20%. 5% light intensity inhibited seedlings growth significantly, and the preserved rate was still above 60%. Very low light intensity could lead to slow growth of seedlings, but did not have strong impact on the density of their natural establishment. Meanwhile, the light saturation point and light compensation point of A. ilicifolius seedlings were very low. The reason why high density seedlings of A. ilicifolius emerge on mangrove wetlands from the Pearl River estuarine zone is that this shade-tolerant species has very strong adaptation to the decrease of light intensity.
- mangrove,
- Acanthus ilicifolius Linn.,
- light intensity,
- tide simulation

References

[1]	邓云飞,夏念和,陈恒彬.中国爵床科老鼠簕属一新组合[J].热带亚热带植物学报,2006,14(6):530-531
[2]	Osmond C B. What is photoinhibition？ Some insights from comparisons of shade and sun plants[M]//Baker N R, Bowyer J R. Photoinhibition of Photosynthesis. Oxford,Herndon,United Kingdom, 1994:1-24
[3]	Krauss K W,Twilley R R,Doyle T W,et al. Leaf gas exchange characteristics of three neotropical mangrove species in response to varying hydroperiod[J].Tree Physiology, 2006,26:959-968
[4]	Krauss K W,Lovelock C E,McKee K L, et al. Environmental drivers in mangrove establishment and early development:A review[J].Aquatic Botany, 2008,89:105-127
[5]	刁俊明,彭逸生,郑明轩,等.红树植物对低光照水平的生长及生理生态响应研究进展[J].嘉应学院学报:自然科学版,2009,27(3):69-74
[6]	Janzen D H. Mangroves: where's the understory[J].Journal of Tropical Ecology, 1985,1:89-92
[7]	Lugo A E. Mangrove understory: as expensive luxury？[J].Journal of Tropical Ecology, 1986,2:287-288
[8]	Chapman V J. Mangrove vegetation[M].Cramer:Vaduz(Germany), 1975:447
[9]	Putz F E,Chan H T. Tree growth,dynamics,and productivity in a mature mangrove forest in Malaysia[J]. Forest Ecology Management, 1986,17:211-230
[10]	Clarke P J,Kerrigan R A. Do forest gaps influence the population structure and species composition of mangrove stands in northern Australia[J]. Biotropica, 2000,32:642-652
[11]	刁俊明,陈桂珠.盆栽桐花树对不同遮光度的生理生态响应[J].生态学杂志,2011,30(4):656-663
[12]	刁俊明,曾宪录,陈桂珠.无瓣海桑幼苗对不同遮光度的生理生态响应[J].生态学杂志,2010,29(7):1289-1294
[13]	杨盛昌,中须贺常雄,林鹏.光强对秋茄幼苗的生长和光合特性的影响[J].厦门大学学报:自然科学版,2003,42(2):242-247
[14]	张留恩,廖宝文,管伟.模拟潮汐淹浸对红树植物老鼠簕种子萌发及幼苗生长的影响J].生态学杂志,2011,30(10):2165-2172
[15]	何斌源,梁士楚,凌俊文.红树植物叶片叶绿素提取方法比较及其活体测定[J].广西科学院学报,1993,9(2):77-81
[16]	Ellison A M,Farnsworth E J. Simulated sea level change alters anatomy,physiology,growth,and reproduction of red mangrove(Rhizophora mangle L.)[J].Oecologia, 1997,112:435-446
[17]	陈鹭真,林鹏,王文卿.红树植物淹水胁迫响应研究进展[J].生态学报,2006,26(２):586-593
[18]	彭逸生,刁俊明,陈桂珠.3种红树植物幼苗对人工林下遮光条件的生理生态响应.广州:广东省植物学会第十七期学术研讨会论文集.2008
[19]	Cheeseman J M.The analysis of photosynthetic performance in leaves under field conditions:a case study using Bruguiera mangrove[J].Photosynthesis Research, 1991,29:11-22
[20]	王艺,韦小丽.不同光照对植物生长、生理生化和形态结构影响的研究进展[J].山地农业生物学报,2010,29(4):353-359
[21]	Ball M C,Chow W S,Anderson J M. Salinity-induced potassium deficiency causes loss of functional Photosystem Ⅱ in leaves of the grey mangrove,Avicennia marina,through depletion of the atrazine-binding polypeptide[J].Australian Journal of Plant Physiology, 1987,14:351-361
[22]	Krauss K W,Allen J A. Factors influencing the regeneration of the mangrove Bruguiera gymnorrhiza(L.)Lamk. on a tropical pacific island[J].Forest Ecology and Management, 2003,176:49-60
[23]	López-Hoffman L,Anten N P R,Martínez-Ramos M,et al. Salinity and light interactively affect neotropical mangrove seedlings at the leaf and whole plant levels[J].Oecologia, 2007,4:545-556
[24]	曾雪琴,陈鹭真,谭凤仪,等.深圳湾引种红树植物海桑的幼苗发生和扩散格局的生态响应[J].生物多样性,2008,16(3):236-244
[25]	Björkman O,Demmig B,Andrews T J. Mangrove photosynthesis:response to high-irradiance stress[J].Aust J Plant Physiology, 1988,15:43-61
[26]	Farquhar G D,Ball M C,Von-Caemmerer S,et al. Effect of salinity and humidity on δ13C values of halophytes: evidence for differential isotope fractionation determined by the ratio of intercellular/atmospheric partial pressure of CO₂ under different environmental conditions[J].Oecologia, 1982,52:121-137
[27]	Ball M C,Farquhar G D. Photosynthetic and stomatal responses of two mangrove species,Aegiceras cornicukatum and Avicennia marina,to longterm salinity and humidity conditions[J].Plant Physiology, 1984,74:1-6
[28]	刁俊明,陈桂珠.光强对无瓣海桑幼苗的生长和光合特性的影响[J].林业科学研究,2008,21(4):486-492
[29]	韩淑梅,李妮亚,何平,等.引种红树与中国乡土红树幼苗光合特性研究[J].西北植物学报,2010,30(8):1667-1674
[30]	Chen L Z,Tam N F Y,Huang J H,et al. Comparison of ecophysiological characteristics between introduced and indigenous mangrove species in China[J].Estuarine,Coastal and Shelf Science,2008,79:644-652

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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The Physio-ecological Response of Acanthus ilicifolius Seedlings to Different Degrees of Light Intensity in Tide Environment

1. Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China

Received Date: 2012-10-16

Abstract: By using tide simulation control system, the physio-ecological response of Acanthus ilicifolius Linn. seedlings to different light intensities (5%, 15%, 20%, 45%, 60%, 75% and 100% relative to natural light) from germination to the 10th month were studied. The results showed that as light intensity increased, the survival rate, height, ground diameter, dry weight of root, dry weight of stem, dry weight of leaf, individual biomass, root/shoot ratio, root vigor, leaf area and the content of chlorophyll a and b rose at first and then fell; the content of soluble sugar, net photosynthetic rate, water transpiration rate, stomatal conductance, maximum net photosynthetic rate rose. Under 30 minutes of immersion, the net photosynthetic rate rose and stomatal conductance decreased, all of which stabilized at a lower level than the initial rate. Most of physio-ecological indicators showed the seedlings grew well under the light intensity of 45%. The seedlings enhanced their efficiency of harvesting light by decreasing root/shoot ratio, light compensation point and increasing height, leaf area, apparent quantum efficiency and the content of chlorophyll a and b with the light intensity of 20%. 5% light intensity inhibited seedlings growth significantly, and the preserved rate was still above 60%. Very low light intensity could lead to slow growth of seedlings, but did not have strong impact on the density of their natural establishment. Meanwhile, the light saturation point and light compensation point of A. ilicifolius seedlings were very low. The reason why high density seedlings of A. ilicifolius emerge on mangrove wetlands from the Pearl River estuarine zone is that this shade-tolerant species has very strong adaptation to the decrease of light intensity.

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[1]	邓云飞,夏念和,陈恒彬.中国爵床科老鼠簕属一新组合[J].热带亚热带植物学报,2006,14(6):530-531
[2]	Osmond C B. What is photoinhibition？ Some insights from comparisons of shade and sun plants[M]//Baker N R, Bowyer J R. Photoinhibition of Photosynthesis. Oxford,Herndon,United Kingdom, 1994:1-24
[3]	Krauss K W,Twilley R R,Doyle T W,et al. Leaf gas exchange characteristics of three neotropical mangrove species in response to varying hydroperiod[J].Tree Physiology, 2006,26:959-968
[4]	Krauss K W,Lovelock C E,McKee K L, et al. Environmental drivers in mangrove establishment and early development:A review[J].Aquatic Botany, 2008,89:105-127
[5]	刁俊明,彭逸生,郑明轩,等.红树植物对低光照水平的生长及生理生态响应研究进展[J].嘉应学院学报:自然科学版,2009,27(3):69-74
[6]	Janzen D H. Mangroves: where's the understory[J].Journal of Tropical Ecology, 1985,1:89-92
[7]	Lugo A E. Mangrove understory: as expensive luxury？[J].Journal of Tropical Ecology, 1986,2:287-288
[8]	Chapman V J. Mangrove vegetation[M].Cramer:Vaduz(Germany), 1975:447
[9]	Putz F E,Chan H T. Tree growth,dynamics,and productivity in a mature mangrove forest in Malaysia[J]. Forest Ecology Management, 1986,17:211-230
[10]	Clarke P J,Kerrigan R A. Do forest gaps influence the population structure and species composition of mangrove stands in northern Australia[J]. Biotropica, 2000,32:642-652
[11]	刁俊明,陈桂珠.盆栽桐花树对不同遮光度的生理生态响应[J].生态学杂志,2011,30(4):656-663
[12]	刁俊明,曾宪录,陈桂珠.无瓣海桑幼苗对不同遮光度的生理生态响应[J].生态学杂志,2010,29(7):1289-1294
[13]	杨盛昌,中须贺常雄,林鹏.光强对秋茄幼苗的生长和光合特性的影响[J].厦门大学学报:自然科学版,2003,42(2):242-247
[14]	张留恩,廖宝文,管伟.模拟潮汐淹浸对红树植物老鼠簕种子萌发及幼苗生长的影响J].生态学杂志,2011,30(10):2165-2172
[15]	何斌源,梁士楚,凌俊文.红树植物叶片叶绿素提取方法比较及其活体测定[J].广西科学院学报,1993,9(2):77-81
[16]	Ellison A M,Farnsworth E J. Simulated sea level change alters anatomy,physiology,growth,and reproduction of red mangrove(Rhizophora mangle L.)[J].Oecologia, 1997,112:435-446
[17]	陈鹭真,林鹏,王文卿.红树植物淹水胁迫响应研究进展[J].生态学报,2006,26(２):586-593
[18]	彭逸生,刁俊明,陈桂珠.3种红树植物幼苗对人工林下遮光条件的生理生态响应.广州:广东省植物学会第十七期学术研讨会论文集.2008
[19]	Cheeseman J M.The analysis of photosynthetic performance in leaves under field conditions:a case study using Bruguiera mangrove[J].Photosynthesis Research, 1991,29:11-22
[20]	王艺,韦小丽.不同光照对植物生长、生理生化和形态结构影响的研究进展[J].山地农业生物学报,2010,29(4):353-359
[21]	Ball M C,Chow W S,Anderson J M. Salinity-induced potassium deficiency causes loss of functional Photosystem Ⅱ in leaves of the grey mangrove,Avicennia marina,through depletion of the atrazine-binding polypeptide[J].Australian Journal of Plant Physiology, 1987,14:351-361
[22]	Krauss K W,Allen J A. Factors influencing the regeneration of the mangrove Bruguiera gymnorrhiza(L.)Lamk. on a tropical pacific island[J].Forest Ecology and Management, 2003,176:49-60
[23]	López-Hoffman L,Anten N P R,Martínez-Ramos M,et al. Salinity and light interactively affect neotropical mangrove seedlings at the leaf and whole plant levels[J].Oecologia, 2007,4:545-556
[24]	曾雪琴,陈鹭真,谭凤仪,等.深圳湾引种红树植物海桑的幼苗发生和扩散格局的生态响应[J].生物多样性,2008,16(3):236-244
[25]	Björkman O,Demmig B,Andrews T J. Mangrove photosynthesis:response to high-irradiance stress[J].Aust J Plant Physiology, 1988,15:43-61
[26]	Farquhar G D,Ball M C,Von-Caemmerer S,et al. Effect of salinity and humidity on δ13C values of halophytes: evidence for differential isotope fractionation determined by the ratio of intercellular/atmospheric partial pressure of CO₂ under different environmental conditions[J].Oecologia, 1982,52:121-137
[27]	Ball M C,Farquhar G D. Photosynthetic and stomatal responses of two mangrove species,Aegiceras cornicukatum and Avicennia marina,to longterm salinity and humidity conditions[J].Plant Physiology, 1984,74:1-6
[28]	刁俊明,陈桂珠.光强对无瓣海桑幼苗的生长和光合特性的影响[J].林业科学研究,2008,21(4):486-492
[29]	韩淑梅,李妮亚,何平,等.引种红树与中国乡土红树幼苗光合特性研究[J].西北植物学报,2010,30(8):1667-1674
[30]	Chen L Z,Tam N F Y,Huang J H,et al. Comparison of ecophysiological characteristics between introduced and indigenous mangrove species in China[J].Estuarine,Coastal and Shelf Science,2008,79:644-652

The Physio-ecological Response of Acanthus ilicifolius Seedlings to Different Degrees of Light Intensity in Tide Environment

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通讯作者: 陈斌, bchen63@163.com

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The Physio-ecological Response of Acanthus ilicifolius Seedlings to Different Degrees of Light Intensity in Tide Environment

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