期刊
ARID LAND RESEARCH AND MANAGEMENT
卷 30, 期 4, 页码 421-431出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15324982.2016.1148799
关键词
Halophytes; osmolytes; osmoregulation; saline soil
资金
- Japanese Society for the Promotion of Science [21380097]
- Global Center of Excellence Program of the Ministry of Education, Culture, Sports, Science, and Technology of Japan, Arid Land Research Center
- Grants-in-Aid for Scientific Research [15H04617, 21380097, 16H06196] Funding Source: KAKEN
Halophytes dominate the plant community in saline soils. Here, osmoregulation via the accumulation of osmolytes is the basic strategy by which plants survive salinity stress. We investigated the accumulation of inorganic and organic osmolytes in the leaves of five halophytes (Tamarix hispida, Halocnemum strobilaceum, Kalidium foliatum, Karelinia caspica, and Phragmites australis) growing in the dry lakebed of Aiding Lake, Xinjiang, China. The succulent euhalophytes (H. strobilaceum and K. foliatum) accumulated large amounts of Na+, whereas other species had low Na+ concentrations. P. australis contained high concentrations of soluble carbohydrates, mainly sucrose, and amino acids, such as proline and alanine. K. caspica accumulated large quantities of mannitol. H. strobilaceum and K. foliatum had high glycine betaine contents. Only T. hispida accumulated gamma-butyro betaine, which was found in high concentrations. Our findings indicate that at least four types of osmolytes (carbohydrates, polyols, amino acids, and betaines) function either alone, or in combination in the osmoregulation of these halophytes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据