|Table of Contents|

Effects of Cadmium on Growth,Cd Accumulation and Active Oxygen Metabolism of Malus baccata Borkh.Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年16
Page:
53-61
Research Field:
Publishing date:

Info

Title:
Effects of Cadmium on Growth,Cd Accumulation and Active Oxygen Metabolism of Malus baccata Borkh.Seedlings
Author(s):
HE Jiali12ZHOU Jiangtao123LYU Deguo12
(1.College of Horticulture,Shenyang Agricultural University,Shenyang,Liaoning 110161;2.Key Lab of Fruit Quality Development and Regulation of Liaoning Province,Shenyang,Liaoning 110161;3.Institute of Pomology of CAAS,Xingcheng,Liaoning 125100)
Keywords:
Malus baccata Borkh.cadmiumaccumulationantioxidants
PACS:
-
DOI:
10.11937/bfyy.20184470
Abstract:
Taking annual(Malus baccata Borkh.) seedling as test material,hydroponic method was adopted to study the effects of 50 μmol?L-1 Cd stress for 10 days and 20 days on the growth,Cd accumulation and active oxygen metabolism of seedling.The knowledge gained from this study provided a scientific basis for the study of physiological mechanism of Cd tolerance in M. baccata Borkh..The results showed that Cd stress significantly inhibited the growth and development of M. baccata Borkh.seedling,and the inhibitory effect was intensified with the prolongation of stress time.Cd concentration,total Cd and bio-concentration factor (BCF) in roots were all higher than those in stems and leaves,indicating that Cd was mainly accumulated in roots.Cd stress remarkably increased the contents of O?[TX-*4]2,H2O2,MDA,free proline,soluble phenolics and ascorbic acid.

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Last Update: 2019-08-29