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- Title
Influence of dehydration and diurnal variation on characteristics of chlorophyll fluorescence of leaves in Haloxylon ammodendron and H. persicum.
- Authors
SHEN Liang; CHEN Jun; LIU Sai; XU Rong; XU Chang-qing; LIU Tong-ning
- Abstract
To evaluate the ecological adaptation mechanism of Haloxylon ammodendron and H. persicum from Ningxia, the host of Cistanche deserticola, the chlorophyll fluorescence under dehydration and diurnal variation was determined by IMAGING-PAM method. The results showed that H. ammodendron had higher photosynthetic electron transport activity (Fv/Fm), photosynthetic efficiency (qP), and PSII electron transport activity (ETR) than H. persicum. After 48 h dehydration, the chlorophyll fluorescence and water-retaining property of H. ammodendron were significantly higher than those of H. persicum. The significant difference in diurnal variation between H. ammodendron and H. persicum was observed and a'V'trend was exhibited. It suggested that H. ammodendron had a stronger ability to adapt to the environment and had wider distribution, while H. persicum was limited by water and light and had narrow distribution.
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2015, Vol 26, Issue 8, p2321
- ISSN
1001-9332
- Publication type
Article