|Table of Contents|

Effects of Two Surfactants on Growth of Solanum nigrum L.Under Cadmium Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年11
Page:
1-7
Research Field:
Publishing date:

Info

Title:
Effects of Two Surfactants on Growth of Solanum nigrum L.Under Cadmium Stress
Author(s):
CHEN Wenzhi1; WU Mengxi2; LUO Qiao2; PAN Yuanzhi2
(1.Ya′an Polytechnic College，Ya′an，Sichuan 625000；2.Landscape Architecture College,Sichuan Agricultural University，Chengdu，Sichuan 611130)
Keywords:
cadmium stress; rhamnolipids; saponins; Solanum nigrum L.; growth
PACS:
-
DOI:
10.11937/bfyy.201711001
Abstract:
A series of pot experiment was conducted to study the effects of different rhamnolipids and saponins concentrations on biomass，plant height and some physiological and biochemical indexes of Solanum nigrum L.under cadmium stress.The results showed that compared with the control，with increasing of rhamnolipids and saponins concentrations，the plant height，biomass，chlorophyll a，chlorophyll b，total chlorophyll，soluble protein contents and antioxidant enzymes (POD，SOD) activity were first increased and then dropped.While the free proline，malondialdehyde (MDA) contents increased.In addition，the soluble sugar content decreased to some extent.〖JP4〗According to the change of these indexes，lower concentrations of rhamnolipid (0.25 g?L-1，0.50 g?L-1) 〖JP3〗could promote Solanum nigrum L.growth and partly mitigate the toxicity of Cd to Solanum nigrum L.plants，and the effect of the rhamnolipid of 0.50 g?L-1was most obvious.However，high concentrations of rhamnolipid (5.00 g?L-1，7.50 g?L-1) was harmful to Solanum nigrum L.While the saponins concentrations were less than or equal 5.00 g?L-1 could promote Solanum nigrum L.growth and partly mitigate the toxicity of Cd to Solanum nigrum L.plants，the best effect was achieved with 5.00 g?L-1，but the result was not notable.However，higher concentrations of saponins (more than 7.50 g?L-1) could inhibit the growth of Solanum nigrum L.In general，the effect was better than the saponin of rhamnolipid.

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Last Update: 2017-06-12