|Table of Contents|

Influence of Cadmium on the Subcellular Fractions and Chemical Forms of Brassica napus L.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年10
Page:
1-9
Research Field:
Publishing date:

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Title:
Influence of Cadmium on the Subcellular Fractions and Chemical Forms of Brassica napus L.
Author(s):
ZHU Xiuhong1; HAN Xiaoxue1; WEN Daoyuan1; ZHU Chao2; LIU Tianchu1; RU Guangxin1
(1.College of Forestry，Henan Agricultural University，Zhengzhou，Henan 450002;2.Xinyang Agricultural Foreign Investment Project Office，Xinyang，Henan 464000)
Keywords:
Cd; B.napus L.; subcellular fraction; chemical forms; root morphology; physiological and biochemical characteristic
PACS:
-
DOI:
10.11937/bfyy.20193670
Abstract:
Brassica napus L. was used as the stress material and tested by hydroponic culture，four Cd levels (0，1，5，10 mg·L-1) were set.The effects of Cd stress on the morphology，physiological characteristics，subcellular Cd distribution and chemical forms of rapeseed were studied in order to provide reference for prevention of heavy metals in vegetables.The results showed that with the increase of Cd stress concentration，root activity，root length，root diameter，root surface area and volume of rapeseed increased first and then decreased，and proline content and MDA content in roots and leaves of rapeseed increased gradually，the activities of POD and CAT decreased gradually，and the activity of SOD increased first and then decreased，the content of chlorophyll showed a decreasing trend.The trend of Cd distribution in B.napus plant showed cytosol>cell organelle>cell wall.With the increase of Cd stress concentration，the Cd content of various subcellular components of B.napus plant increased.Compared with 1 mg·L-1,the proportion of cell wall and organelle Cd in roots and leaves of rapeseed increased under 5 mg·L-1 and 10 mg·L-1 treatment.The trend of Cd content in the chemical forms of rapeseed was FNaCl>FHAC>FH2O>Feth>FHCl>Fres，and its content increased with the increase of cadmium stress concentration.The highest proportion of sodium chloride extracted from rapeseed roots and leaves showed that the ratio of adsorbed Cd was high.

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Last Update: 2020-07-24