In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 864-867 ( 2013-12), p. 295-298
Abstract:
In this paper, the effect of La (III) on some physiological index and ultrastructure of honeysuckle leaves were investigated. The experimental results indicated that the effect of La (III) on honeysuckle growth depended on La (III) concentration. When the concentration of La (III) was low, it can increase POD activity, increase the chlorophyll contents and the chlorophyll a/b value, decrease the contents of MDA and H 2 O 2 , so the photosynthetic capacity was strengthened and the membrane lipid peroxidation was decreased. When the concentration of La (III) was high, La (III) could inhibit POD activity, decrease the chlorophyll contents and the chlorophyll a/b value, increase the contents of MDA and H 2 O 2 , so the photosynthetic capacity was inhibited and the membrane lipid peroxidation was increased. Meanwhile, the low concentration of La (III) did not destroy the cell structure, however, the high concentration of La (III) acted as a heavy metal and destroyed the cell structure and membrane system, La (III) showed a hormesis effecton honeysuckle growth.Abbreviations. ROS: reactive oxygen species, POD: peroxidase, CAT: catalase, SOD: superoide dismutase, MDA: malondialdehyde, TCA: trichloroacetic acid, REL: relative electrolyte leakage,
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.864-867
DOI:
10.4028/www.scientific.net/AMR.864-867.295
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2013
detail.hit.zdb_id:
2265002-7
Permalink