Bulletin of Botanical Research ›› 2011, Vol. 31 ›› Issue (1): 117-120.doi: 10.7525/j.issn.1673-5102.2011.01.022

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Accumulation Characteristic of Heavy Metals Between Gametophytes and Sporophytes of Moss Funaria hygrometrica

XIE Fei;ZHANG Zhao-Hui;*   

  1. 1.Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province,Guiyang　550001；2.School of Life Sciences,Guizhou Normal University,Guiyang　550001
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-01-20 Published:2011-01-20
  • Contact: ZHANG Zhao-Hui
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Abstract: Specimens were collected from abandoned slags in the Chatian Vanadium Deposit in western Hunan Province. Heavy metal concentrations in gametophytes, sporophytes and substrates were quantified by atomic absorption spectrometry, inductively coupled plasma optical emission spectrometer and atomic fluorescence spectrometry. It showed that the moss Funaria hygrometrica gametophytes and sporophytes accumulated considerable concentrations of heavy metals. Each generation had a great difference for accumulating heavy metals, and gametophytes accumulated significantly more heavy metals than sporophytes(p<0.05). Concentrations of Zn and Mn in sporophytes were always higher than concentrations of other heavy metals. We also discuss the bioaccumulation and biological barrier of heavy metals in moss gametophytes and sporophytes.

Key words: heavy metal accumulation, Funaria hygrometrica, sporophytes, gametophytes, Zn, Mn

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