Differences in lead tolerance between Allium cepa plants developing from seeds and bulbs

被引：39

作者：

Michalak, E ^{[1
]}

Wierzbicka, M ^{[1
]}

机构：

[1] Univ Warsaw, Inst Plant Expt Biol, Dept Morphogenesis, Environm Plant Pollut Lab, PL-00927 Warsaw, Poland

来源：

PLANT AND SOIL | 1998年 / 199卷 / 02期

关键词：

adventitious roots; Allium cepa; lead; tolerance index;

D O I：

10.1023/A:1004321331708

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Tolerance to lead of three of Allium cepa L. varieties grown from seeds and bulbs was compared. In all cases plants developing from bulbs were found more tolerant to lead than those developing from seeds. During 10 days of exposure to lead, the difference in the tolerance index between adventitious and seedling roots was 24% on average (7-61% depending on the plant variety and the dose of lead), which was significant. In all cases, the seedlings contained more lead in their tissues than the plants that had developed from bulbs. This observation may explain a difference in lead tolerance between these developmental phases of Allium cepa.

引用

页码：251 / 260

页数：10

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[Anonymous], 1989, CHEM SPEC BIOAVAILAB

[2]

[Anonymous], 1996, SCI LEGUMES

[3]

Antosiewicz Danuta Maria, 1992, Acta Societatis Botanicorum Poloniae, V61, P281, DOI 10.5586/asbp.1992.026

[4] MINERAL STATUS OF DICOTYLEDONOUS CROP PLANTS IN RELATION TO THEIR CONSTITUTIONAL TOLERANCE TO LEAD [J].