贵州普定6种喀斯特石生植物及其土壤的碳酸酐酶活性

刘天雷; 从春蕾; 胡 丹; 王世杰; 张显强

doi:10.11932/karst20170205

贵州普定6种喀斯特石生植物及其土壤的碳酸酐酶活性

doi: 10.11932/karst20170205

1.
安顺学院
2.
中国科学院地球化学研究所环境地球化学国家重点实验室
3.
安顺学院/中国科学院地球化学研究所环境地球化学国家重点实验室

基金项目: 国家自然科学基金项目（41463006）

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出版历程
- 发布日期: 2017-04-25

Carbonic anhydrase activity of six epilithic mosses and their underlying soil in the Puding karst area,Guizhou Province

1.
Anshun University
2.
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences
3.
Anshun University/State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences

摘要

摘要: 以贵州普定喀斯特石漠化区域石生银叶真藓（Bryum argenteum Hedw.）、扭口藓（Barbula unguiculata Hedw.）、穗枝赤齿藓（Erythrodontium julaceum(Schwaegr.)Par.）、美灰藓（Eurohypnum leptothollum(C. Muell. )Ando.）、东亚砂藓（Racomitrium japonicum Dozy et Molk.）和雪茶（地衣）（Thamnolia vermicularia(Ach.)Asa-hina）为对象，研究了这些石生植物和其基质土壤碳酸酐酶（CA）的活性，可为石生植物的生物岩溶作用机理和石漠化生态环境的治理提供一定的参考。结果表明，6种植物CA的活性存在一定的差异，以美灰藓的CA活性272.99 U·g-1(FW)最高，东亚砂藓的CA活性33.45 U·g-1(FW)最低；银叶真藓基部土壤CA活性最高，为101.81 U·g-1(干土)，美灰藓CA活性15.95 U·g-1(干土)最低。CA活性与土壤全磷、全钾、石砾含量和土壤含水量之间呈极显著的相关性。
- 喀斯特石漠化 /
- 石生植物 /
- 碳酸酐酶 /
- 土壤
Abstract: The samples of six moss plants include B.argenteum, B.unguiculata, E.julaceum, E.leptothollum, R japonicum and T vermicularia were collected from the karst rock desertification area in Puding of Guizhou, as the objects of this study. The carbonic anhydrase (CA) activity of the epilithic plants and the matrix of soil was studied, from which the analyses of bio-karst mechanism and governance of ecological environments in karst rocky desertification areas can be performed.The results show that there are some differences in carbonic anhydrase activity of six epilithic plants.The E. leptothollum is highest, reaching 272.99 U·g-1(FW), while the minimum is 33.45 U·g-1(FW) in R. japonicum. The B.argenteum base soil CA activity(101.81 U·g-1(dry soil) is the highest. The E. leptothollum is 15.95 U·g-1 (dry soils) as the lowest. It could be concluded that CA activity has positive correlations with plant and soil carbonic anhydrase content of total phosphorus, kalium, gravel and soil moisture, respectively.
- rock desertification in karst areas /
- epilithic mosses /
- carbonic anhydrase /
- underlying soil

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参考文献(54)

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[30]	Li W, Yu L J, Wu Y, et al. Enhancement of Ca2+ release from limestone by microbial extracellular carbonic anhydrase［J］. Bioresource Technology, 2007,98:950-953.
[31]	Xiao L, Hao J, Wang W, et al. The up-regulation of carbonic anhydrase genes of Bacillus mucilaginosus under soluble Ca2+ deficiency and the heterologously expressed enzyme promotes calcite dissolution［J］. Geomicrobiology Journal, 2014,31(7):632-641.
[32]	Li W, Yu L J, Wu Y, et al.D X. Enhancement of Ca2+ release from limestone by microbial extracellular carbonic anhydrase［J］. Bioresource Technology, 2007,98:950-953.
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[40]	吴沿友,李西腾,郝建朝,等.不同植物的碳酸酐酶活力差异研究［J］.广西植物, 2006, 26(4):366-369.
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