小麦苗期根系分泌物对根际反硝化细菌的影响
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INFLUENCE OF THE ROOT EXUDATES OF WHEAT SHOOTS ON THE DENITRIFIERS IN RHIZOSPHERE
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    摘要:

    本文通过无菌水培试验,研究了两种不同基因型小麦苗期根系分泌物对反硝化细菌优势种生长量和反硝化活性的影响.结果表明:两种不同基因型的小麦根系对反硝化细菌均有明显的根际效应,其菌数和反硝化活性又以郑引1号大于宝丰7228;根分泌物中氨基酸组分两者相似,但其总量也以郑引1号大于宝丰7228,对根际反硝化细菌产生直接影响.而反硝化活性不受菌株耐药标记的影响.

    Abstract:

    Studies of the root eaudates of wheat shoots on the growing amount and denitrification activity of the dominant denitrifiers species were conducted by the sterile aquicultural experiments.The results indicated that the rhizosphere effects of the two different genotype wheats in the denitrifiers are significant.The total amount of the bacteria are larger and the activity of denitrification are more intensive in the rhizosphere of Zhenyin No.l than those in the rhizosphere of Baofen No.7228. The components of amino acid of the root esudates of Zhenyin No.l are similar to those of Baofen No.7228,but the quantity of amino acid,the former is larger. The Table of resistance to streptomycin on the denitrifiers has no effect on the activity of denitrification.

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李振高,李良谟,潘映华,吴胜春.小麦苗期根系分泌物对根际反硝化细菌的影响[J].土壤学报,1995,32(4):408-413. Li Zhengao, Li Liangmo, Pan Yinghua, Wu Shengchun. INFLUENCE OF THE ROOT EXUDATES OF WHEAT SHOOTS ON THE DENITRIFIERS IN RHIZOSPHERE[J]. Acta Pedologica Sinica,1995,32(4):408-413.

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  • 在线发布日期: 2013-02-25
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