|Table of Contents|

Effects of LaCl3 on Cold Resistance of Tissue Culture Seedling of Euphorbia pulcherrima (PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年09期
Page:
73-77
Research Field:
Publishing date:

Info

Title:
Effects of LaCl3 on Cold Resistance of Tissue Culture Seedling of Euphorbia pulcherrima
Author(s):
DUAN Xiao-yu1; TANG Min2; WANG Wei-shuang1; WANG Ling1
1.College of Landscape Architecture，Sichuan Agricultural University,Wenjiang，Sichuan 611130；
2.Practice Teaching Center，Chengdu Vocational College of Agricultural Science and Technology,Wenjiang，Sichuan 611130
Keywords:
LaCl3; Euphorbia pulcherrima; low temperature stress; physiological and biochemical characteristics
PACS:
S 685.23
DOI:
-
Abstract:
Taking Euphorbia pulcherrima as test materials，the regulation mechanism of LaCl3 which was frost resistance under the stress of low temperature were discussed，in the basic medium (1/2 MS+IAA (1.2 mg/L)+agar (7.2 g/L)+sucrose (30 g/L)) adding different concentrations of LaCl3,the physiological and biochemical index influence of tissue culture seedling of Euphorbia pulcherrima were studied in different concentrations of LaCl3 at low temperature of 3℃ after transplanting.The results showed that the proper concentration of different degree LaCl3 could improve free Pro,soluble sugar，soluble protein content and SOD,POD activity,and reduce MDA content.LaCl3 could increase the protective enzyme activity through the enhancement of osmotic adjustment ability and osmoregulation and scavenging active oxygen and reducing the membrane lipid peroxidation level of Euphorbia pulcherrima under low temperature stress，resulting in an increase in the cold resistance of tissue culture seedling of Euphorbia pulcherrima.Appropriate concentration of LaCl3 was 0.5~10.0 mg/L.

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Last Update: 2014-08-25