Comparison of delta C-13 values and gas exchange of assimilating shoots of desert plants Haloxylon ammodendron and Calligonum mongolicum with other plants
文献类型：期刊论文
| 作者 | Su, PX; Liu, XM; Zhang, LX; Zhao, AF; Li, WR; Chen, HS |
| 刊名 | ISRAEL JOURNAL OF PLANT SCIENCES
 |
| 出版日期 | 2004 |
| 卷号 | 52期号:2页码:87-97 |
| 关键词 | C-3 plant C-4 plant Calligonum mongolicum Haloxylon ammodendron delta C-13 value gas exchange water use efficiency |
| ISSN号 | 0792-9978 |
| 通讯作者 | Su, PX(supx@ns.lzb.ac.cn) |
| 英文摘要 | The photosynthetic characters and water use efficiency of the desert plants Haloxylon ammodendron and Calligonum mongolicum, which grow in conditions of extreme stress, were studied. The mechanisms of their acclimation to harsh desert conditions and their potential capacity for sand stabilizing are revealed. The stable carbon isotope ratios (delta(13)C or C-13/C-12) of leaves or assimilating shoots of desert plants growing at the southern edge of the Badain Jaran Desert were analyzed by mass spectrometry and compared. The diurnal course of net photosynthesis rate (Pn), Pn/light and Pn/CO2 curves, and water use efficiency (WUE, Pn/E) were measured by using the LI-6400 Portable Photosynthesis System. The results showed that: (1) Assimilating shoots of H. ammodendron and C. mongolicum have Kranz anatomy; (2) The delta(13)C values of H. ammodendron and C. mongolicum were -14.3% and -14.8%, respectively, whereas the corresponding values of Caragana korshinskii, Nitraria sphaerocarpa, Hedysarum scoparium, and Reaumuria soongorica were -25.8%, -25.8%, -26.4%, and -28.1%, respectively; (3) The CO2 compensation points (CCP) of H. ammodendron and C. mongolicum were 1.6 and 4.3 mumol mol(-1), respectively, and those of C korshinskii and H. scoparium were 90.7 and 86.3 mumol mol(-1), respectively; (4) The light saturation points (LSP) of H. ammodendron and C mongolicum were 1660.0 and 1755.6 mumol m(-2) s(-1), respectively, and those of C korshinskii and H. scoparium were 1266.7 and 1394.4 mumol m(-2) s(-1), respectively. It was concluded that H. ammodendron and C. mongolicum belong to C, plants, while C. korshinskii, N. sphaerocaroa, H. scoparium, and R. soongorica are C, plants. The annual WUE of the five desert plants was ranked in the following order: H. ammodendron > C. mongolicum > C. korshinskii > H. scoparium approximate to N. sphaerocarpa > R. soongorica. For estimation of the long-term WUE of desert plants by delta(13)C values of leaves or assimilating shoots, the best period of time for sampling in temperate desert regions is between late August and late September. |
| 收录类别 | SCI |
| WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; WATER-USE EFFICIENCY ; C-13/C-12 RATIOS ; PATHWAY ; DIOXIDE ; PHOTOSYNTHESIS ; LEAVES |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000223417000002 |
| 出版者 | LASER PAGES PUBL LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555610 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Su, PX |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, PX,Liu, XM,Zhang, LX,et al. Comparison of delta C-13 values and gas exchange of assimilating shoots of desert plants Haloxylon ammodendron and Calligonum mongolicum with other plants[J]. ISRAEL JOURNAL OF PLANT SCIENCES,2004,52(2):87-97. |
| APA | Su, PX,Liu, XM,Zhang, LX,Zhao, AF,Li, WR,&Chen, HS.(2004).Comparison of delta C-13 values and gas exchange of assimilating shoots of desert plants Haloxylon ammodendron and Calligonum mongolicum with other plants.ISRAEL JOURNAL OF PLANT SCIENCES,52(2),87-97. |
| MLA | Su, PX,et al."Comparison of delta C-13 values and gas exchange of assimilating shoots of desert plants Haloxylon ammodendron and Calligonum mongolicum with other plants".ISRAEL JOURNAL OF PLANT SCIENCES 52.2(2004):87-97. |
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来源：寒区旱区环境与工程研究所
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