Biomass Production of Three Biofuel Energy Plants’ Use of a New Carbon Resource by Carbonic Anhydrase in Simulated Karst Soils: Mechanism and Capacity

Rui Wang, Yanyou Wu, Deke Xing, Hongtao Hang, Xiaolin Xie, Xiuqun Yang, Kaiyan Zhang and Sen Rao
Additional contact information
Rui Wang: Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang 550005, China
Yanyou Wu: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
Deke Xing: Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education & Jiangsu Province, Institute of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Hongtao Hang: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
Xiaolin Xie: Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang 550005, China
Xiuqun Yang: Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang 550005, China
Kaiyan Zhang: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
Sen Rao: Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang 550005, China

Energies, 2017, vol. 10, issue 9, 1-14

Abstract: To determine whether the bicarbonate in karst limestone soil could be used as a new carbon resource for biomass production by the catalysis of carbonic anhydrase (CA), a simulative karst drought stress experiment was designed and performed. Three plants used for biofuel energy, Orychophragmus violaceus L. (Ov), Brassica juncea L. (Bj), and Euphorbia lathyris L. (El), were grown under simulated karst drought stress. In response to drought stress, the photosynthesis of the three energy plants was inhibited, but their CA activity increased. The hypothesis was confirmed by plant physiological and stable isotope techniques. The obtained results showed that plant biomass was produced with atmospheric CO 2 as well as bicarbonate under drought stress. Bicarbonate use was proportional to the CA activity of the plants. With high CA activity over a long period, El had the highest proportional bicarbonate use compared to Ov and Bj, reaching 26.95%. Additionally, a new method is proposed for the screening of plants grown for energy in karst habitats.

Keywords: bicarbonate; carbonic anhydrases; bicarbonate-use capacity; biomass production; karst drought stress (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/10/9/1370/pdf (application/pdf)
https://www.mdpi.com/1996-1073/10/9/1370/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:10:y:2017:i:9:p:1370-:d:111496

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().