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Bulletin of Botanical Research ›› 2000, Vol. 20 ›› Issue (1): 69-72.

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EFFECT OF SODIUM CARBONATE STRESS ON AMINO ACID CONTENTS OF PUCCINELLIA TENUIFLORA SEEDLINGS

SUN Guo-rong, GUAN Yang, YAN Xiu-feng   

  1. 1. Department of Biology, Harbin Normal University, Harbin 150080;
    2. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040
  • Received:1999-08-26 Online:2000-03-15 Published:2016-06-14

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Abstract: Contents of free amino acid of Puccinellia tenuiflora seedlings were studied under sodium carbonate stress. The results showed that free amino contents increased and had a positive correlationship with sodium carbonate concentration. Contents of Ala, Cys, Gly, Leu, Met, Pro, Phe and Val increased with increasing sodium carbonate concentration. Contents of Ala, Cys, Gly, Leu, Met and Pro had a significant positive correlationship with sodium carbonate concentrantion. Contents of NH3 aaccumulated under Na2CO3 stress. In the meantime contents of Asp-NH2 increased. It can reduce the harm of NH3 to seedlings and enhance salt-alkali resistance.

Key words: Puccinellia tenuiflora seedlings, free amino acid contents, sodium carbonate stress, contents of NH3, contents of Asp-NH2