|Table of Contents|

Effect of Pb Stress on Content of Endogenous Phytohormones of Raphanus L.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年24
Page:
19-22
Research Field:
Publishing date:

Info

Title:
Effect of Pb Stress on Content of Endogenous Phytohormones of Raphanus L.
Author(s):
WU Shun; LI Han; HU Tanqiu; YU Jiawei; GAO Lingjuan; LIU Kun
(Life Science and Technology College，Central South University of Forestry and Technology，Changsha，Hunan 410018)
Keywords:
lead stress; Raphanus L.seedlings; endogenous hormones
PACS:
-
DOI:
10.11937/bfyy.201624005
Abstract:
The dynamic changes of endogenous hormones (ZR，ABA，GA3，IAA，IAA/ABA，GA3/ABA) were detected by taking Raphanus L.seedlings as the material under the different concentration of Pb(100,300,500 mg?L-1) stress.The results showed that ZR content decreased with the increased concentration of Pb.With the increased lead concentration，ABA concentration showed a rising trend after the first fall.GA3 content was showing a downward trend after the first rise，getting the maximum at the lead concentration of 300 mg?L-1.IAA and GA3 contents were consistent in lead concentration conditions，increased and then decreased.IAA content obtained maximum value at 100 mg?L-1 pb concentration.The ratio of growth promoted hormones and aging promoted hormone as IAA/ABA，GA3/ABA showed a downward trend after the first rise with increased concentration of lead，which indicated lead stress could alter the endogenous hormones of Raphanus L.seedlings and then regulate the growth of Raphanus L.seedlings.All results showed that the content of the endogenous hormones could be changed and control their growth in Raphanus L.seedlings under the lead stress.

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Last Update: 2017-01-20