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- Title
Endogenous hormone contents and their habitat differentia of Reaumuria trigyna and R. soongorica in different salt habitats.
- Authors
Shi Song-Li; Wang Ying-Chun; Zhou Jian-Hua; Zhou Hong-Bing
- Abstract
By means of Enzyme Linked Immunosorhent Assay (ELISA), this paper analyzed the contents of endogenous hormones ABA, IAA, ZR, and GA3 in Reaumuria trigyna and its related congener R. soongorica from four different salt habitats. In the identical habitats, the contents of growth-promoting hormones IAA, ZR, and GA3 in R. trigyna were lower than those in R. soongorica, while the content of growth-suppressing hormone ABA was in contrary, which could be one of the main reasons that R. trigyna had a weaker ecological adaptability than R. soongorica. The (IAA+ZR+GA3) /ABA in wild R. trigyna varied with habitats, being saline soil > non-salinized soil > heavy solonchack, which was consistent with the density and coverage of R. trigyna population being the largest on saline soil and followed by on non-salinized soil and heavy solonchack, and suggested that R. trigyna having lived in saline habitat for a long time developed a corresponding inherent adaptation mechanism, and that the integrative regulation of endogenous hormones under salt stress played a key role for the growth and development of R. trigyna.
- Subjects
ENZYME-linked immunosorbent assay; HORMONES; PLANT habitats; SOIL salinity; SOIL density; BIOLOGICAL adaptation; PLANT growth
- Publication
Yingyong Shengtai Xuebao, 2011, Vol 22, Issue 2, p350
- ISSN
1001-9332
- Publication type
Article