Growth and Uptake Response of Hyperaccumulator Ryegrass to Zn Stress

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Growth and Uptake Response of Hyperaccumulator Ryegrass to Zn Stress

更新时间：2024-11-07

- Growth and Uptake Response of Hyperaccumulator Ryegrass to Zn Stress
- Issue 3, Pages: 43-46(2006)
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- Published：2006
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Growth and Uptake Response of Hyperaccumulator Ryegrass to Zn Stress[J]. 2006, (3): 43-46.
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Growth and Uptake Response of Hyperaccumulator Ryegrass to Zn Stress[J]. 2006, (3): 43-46. DOI：

摘要

采用根袋土培试验研究了重金属Zn胁迫对黑麦草（Loliurn perenne L．）生长、抗氧化酶活性、游离脯氨酸含量、根系活力及锌积累的影响。结果表明，黑麦草对重金属锌有很强的抗性和耐性．即使在高锌下（16mmol Zn／kg）。黑麦草生长也未受到抑制。黑麦草地上部干重、根系千重在8mmol Zn／kg下达到最大值。分别较对照增加48．8％，52．2％;高锌处理（16mmol Zn／kg）的植株地上部千重也较对照增加11．2％。黑麦草POD活性随Zn胁迫增加，先下降，然后回升SOD活性则随锌胁迫增加而下降。随Zn胁迫增加，叶脯氨酸、根系活力先增加，然后下降。地上部、根系Zn含量随Zn胁迫增加而增加，最大值分别为746．5，521．0mg／kg DW（16mmol Zn／kg）。高锌处理下（≥4mmol／kg）Zn转运率（S／R）〉1．0。

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Growth and Uptake Response of Hyperaccumulator Ryegrass to Zn Stress

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Related Author

XIONG Zhi-ting

LI Yang-rui

LIU Ji-zhen

LI Wen-yi

WANG Hong-xin

XU Wei-hong

ZHANG Hao

LEI Dengchao

Related Institution

College of Life Sciences， Liaoning University

Institute of Applied Ecology， Chinese Academy of Sciences

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Shengtai Agricultural Machinery Service Professional Cooperative in Changtu County

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