克隆整合对异质性盐分胁迫下积雪草生长的影响

doi:10.7677/ynzwyj201312042

Plant Diversity ›› 2013, Vol. 35 ›› Issue (1): 55-61.DOI: 10.7677/ynzwyj201312042

克隆整合对异质性盐分胁迫下积雪草生长的影响

廖咏梅1，刘富俊1 ，陈劲松2

1 西华师范大学生命科学学院，四川南充637009；2 中国科学院成都生物研究所，四川成都610041

收稿日期:2012-03-30 出版日期:2013-01-25 发布日期:2012-09-20
基金资助:
国家自然科学基金 (31170502)，四川省科技厅应用基础项目 (2011JYZ021)，四川省教育厅重点项目 (11ZA033)

Effects of Clonal Integration on Growth of Centella asiatica Suffering from Heterogeneous Saline Stress

LIAO Yong-Mei-1, LIU Fu-Jun-1 , CHEN Jin-Song-2

1 College of Life Science, China West Normal University, Nanchong 637009, China; 2 Chengdu Institute
of Biology, Chinese Academy of Sciences, Chengdu 610041, China

Received:2012-03-30 Online:2013-01-25 Published:2012-09-20

摘要/Abstract

摘要：

以匍匐茎草本克隆植物积雪草(Centella asiatica)为材料进行盆栽试验，研究了克隆整合特性对异质性盐分胁迫条件下植物生长的影响。试验中将远端分株(较幼分株)分别处于盐分胁迫或正常土壤条件下，切断或保持其与近端分株(较老分株)间的匍匐茎连接。结果表明：盐分胁迫下，克隆整合提高了受胁迫远端分株和整个克隆片断的叶面积和生物量等生长指标；与未遭受盐分胁迫处理相比，匍匐茎连接处理导致远端分株的根冠比显著降低。克隆整合还减轻了盐分胁迫对分株的叶绿素含量和光化学效率的影响，但盐分胁迫下，匍匐茎连接处理远端分株的净光合速率与匍匐茎切断处理远端分株并无显著差异，连接受胁迫的远端分株并没有引起近端分株生物量的明显损耗以及光合速率的补偿性提高。总之，克隆整合促进了积雪草遭受盐分胁迫的分株和整个克隆片段的生长，这对于丰富和发展异质性环境胁迫下克隆植物的生态适应对策具有重要意义。

关键词: 积雪草, 克隆整合, 盐分胁迫, 净光合速率

Abstract:

We conducted a pot experiment to study the effects of clonal integration on growth of Centella asiatica suffering from heterogeneous saline stress. Distal ramets (younger ramets) of C.asiatica were subjected to high saline or normal soil, and their connections to the proximal ramets (older ramets) were either severed or not. The results demonstrated that, clonal integration was beneficial to the growth of distal ramets and the whole clonal fragments, in terms of leaf area and biomass, and the root to shoot ratio of stolen connection is significantly lower than control. Clonal integration also significantly increased the chlorophyll content and photochemical efficiency of the stressed distal ramets. But, when suffering from saline stress, it has no significant difference between stolon connection and stolon severed distal ramets on net photosynthetic rate. Connecting to the stressed distal ramets brought little cost to the proximal ramets, and never incur the increase of photosynthetic efficiency of proximal ramets. In a word, clonal integration improved the growth of the whole clonal fragments in heterogeneous saline stress, it is important for developing the adaptive strategy of clonal plants in heterogeneous environment.

Key words: Centella asiatica, Clonal integration, Saline stress, Net photosynthetic rate

中图分类号:

Q 145，Q 948

廖咏梅1, 刘富俊1 , 陈劲松2. 克隆整合对异质性盐分胁迫下积雪草生长的影响[J]. Plant Diversity, 2013, 35(1): 55-61.

LIAO Yong-Mei-, LIU Fu-Jun- , CHEN Jin-Song. Effects of Clonal Integration on Growth of Centella asiatica Suffering from Heterogeneous Saline Stress[J]. Plant Diversity, 2013, 35(1): 55-61.

参考文献

中国科学院中国植物志编辑委员会, 1979. 中国植物志［M］. 北京: 科学出版社, 55 (1): 31—33
Alpert P, 1999. Effects of clonal integration on plant plasticity in Fragaria chiloensi［J］. Plant Ecology, 141 (1-2): 99—106
BaniAameur F, SippleMichmerhuizen J, 2001. Germination and seedling survival of Argan (Argania spinosa) under experimental saline conditions［J］. Journal of Arid Environments, 49 (3): 533—540
BolhàrNordenkampf HR, Long SP, Baker NR et al., 1989. Chlorophyll fluorescence as a probe of the photosynthetic competence of leaves in the field: a review of current instrumentation［J］. Functional Ecology, 3 (4): 497—514
Chen JS, Lei NF, Dong M, 2010. Clonal integration improves the tolerance of Carex praeclara to sand burial by compensatory response［J］. Acta Oecologica, 36 (1): 23—28
de Kroon H, van Groenendael J, 1997. The Ecology and Evolution of Clonal Plants［M］. Leiden, The Netherlands: Backhuys Publishers
Janecek S, Kantorova J, Bartos M et al., 2008. Integration in the clonal plant Eriophorum angustifolium: an experiment with a threememberclonal system in a patchy environment［J］. Evolutionary Ecology, 22 (3): 325—336
Li Q, Liu X, Yue M et al., 2011. Effects of physiological integration on photosynthetic efficiency of Trifolium repens in response to heterogeneous UVB radiation［J］. Photosynthetica,49 (4): 539—545
Liu FJ (刘富俊), Li YX (黎云祥), Liao YM (廖咏梅) et al., 2011. Effects of clonal integration on growth of stoloniferous herb Centella asiatica suffering from heterogeneous heavy metal Cd2+ stress［J］. Chinese Journal of Plant Ecology (植物生态学报), 35 (8): 864—871
Markwell J, Osterman JC, Mitchell JL, 1995. Calibration of the Minolta SPAD502 leaf chlorophyll meter［J］. Photosynthesis Research, 46 (3): 467—472
Roiloa SR, Retuerto R, 2006. Physiological integration ameliorates effects of serpentine soils in the clonal herb Fragaria vesca［J］. Physiologia Plantarum, 128 (4): 662—676
Shumway SW, 1995. Physiological integration among clonal ramets during invasion of disturbance patches in a New England salt marsh［J］. Annals of Botany, 76 (3): 225—233
Stuefer JF, Hutchings MJ, 1994. Environmental heterogeneity and clonal growth: a study of the capacity for reciprocal translocation in Glechoma hederacea L.［J］. Oecologia, 100 (3): 302—308
van Kleunen M, Fischer M, Schmid B, 2000. Clonal integration in Ranunculus reptans: byproduct or adaptation?［J］. Journal of Evolutionary Biology, 13 (2): 237—248
van Kleunen M, Stuefer JF, 1999. Quantifying the effects of reciprocal assimilate and water translocation in a clonal plant by the use of steamgirdling［J］. Oikos, 85 (1): 135—145
Wang D, Poss JA, Donovan TJ et al., 2002. Biophysical properties and biomass production of elephant grass under saline conditions［J］. Journal of Arid Environments, 52 (4): 447—456
Wang DM (王东明), Jia Y (贾媛), Cui JZ (崔继哲), 2009. Advances in research on effects of salt stress on plant and adaptive mechanism of the plant to salinity［J］.Chinese Agricultural Science Bulletin (中国农学通报), 25 (4): 124—128
Wang N, Yu FH, Li PX et al., 2008. Clonal integration affects growth, photosynthetic efficiency and biomass allocation, but not the competitive ability of the alien invasive Alternanthera philoxeroides under severe stress［J］. Annals of Botany, 101 (5): 671—678
Yang HL (杨慧玲), Xue RL (薛瑞丽), Ye YZ (叶永忠) et al., 2009. Effects of clonal integration on growth and survival of Bromus inermis (Poaceae)in heterogeneous saline environments of the Otindag Sandland［J］. Acta Ecologica Sinica (生态学报), 29 (5): 2827—2834
Ye SY (叶上游), Pan S (潘爽), Wang JB (王景波) et al., 2008. Research progress on physiological integration of clonal plant［J］. Grassland and Turf（草原与草坪), 130 (5): 63—69
Yu FH, Chen YF, Dong M, 2002. Clonal integration enhances survival and performance of Potentilla anserina,suffering from partial sand burial on Ordos plateau, China［J］. Evolutionary Ecology, 15 (4-6): 303—318
Yu FH, Dong M, Krüsi B, 2004. Clonal integration helps Psammochloa villosa survive sand burial in an inland dune［J］. New Phytologist, 162 (3): 697—704
Zhang CH (张川红), Shen YB (沈应柏), Yin WL (尹伟伦), 2002. Effect of salt stress on photosynthesis and growth of four tree species seedings［J］. Scientia Silvae Sinicae (林业科学), 38(2): 27—31
Zhang XY (张想英), Fan DY (樊大勇), Xie ZQ (谢宗强) et al., 2010. Clonal integration enhances performance of Cynodon dactylon subjected to submergence［J］. Chinese Journal of Plant Ecology (植物生态学报), 34 (9): 1075—1083

[1]	陈悦1 , 2 , 许大全1 . 饱和白光引起的光系统II 捕光复合体(LHCII ) 从反应中心复合体脱离不同于弱红光引起的状态1 向状态2 的转换[J]. Plant Diversity, 2009, 31(1): 67-74.
[2]	刘爱荣, 张远兵, 陈庆榆, 张丛宇, 熊周林, 何庆元, 王桂芹. 盐胁迫对空心莲子草生长和光合作用的影响[J]. Plant Diversity, 2007, 29(01): 85-90.
[3]	陈章和，朱素琴，李韶山等　　. UV-B辐射对南亚热带森林木本植物幼苗生长的影响[J]. Plant Diversity, 2000, 22(04): 1-3.
[4]	谢宗强. 玉树地区掌叶大黄的生态学特性[J]. Plant Diversity, 1999, 21(03): 1-3.

克隆整合对异质性盐分胁迫下积雪草生长的影响

Effects of Clonal Integration on Growth of Centella asiatica Suffering from Heterogeneous Saline 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 4

编辑推荐

Metrics

本文评价