Microflora and antimicrobial activities of soil microorganisms in mangrove forests in the Jiulong Estuary, China

LIN Peng; ZHANG Yu-bin; DENG Ai-ying; ZHUANG Tie-cheng

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LIN Peng, ZHANG Yu-bin, DENG Ai-ying, ZHUANG Tie-cheng. Microflora and antimicrobial activities of soil microorganisms in mangrove forests in the Jiulong Estuary, China[J]. Haiyang Xuebao, 2005, 27(3): 133-141.

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Microflora and antimicrobial activities of soil microorganisms in mangrove forests in the Jiulong Estuary, China

1.
School of Life Sciences, Xiamen University, Xiamen 361005, China
2.
School of Life Sciences, Xiamen University, Xiamen 361005, China;Institute of Aquatic Biotechnology and Environmental Resources Protection, Shantou University, Shantou 515063, China

Received Date: 2003-02-20
Rev Recd Date: 2003-07-28

Abstract

Abstract

Microflora and antimicrobial activities of soil microorg anisms were investigated in Kandelia candel forest,Avicennia marina forest and their corresponding mud-flats in the Jiulong Estuary,Fujian of China.The studies on microflora indicate that Bacillus is dominant genus in bacterial genera; Micromonospora is dominant genus followed by Streptomyces in actinomycete genera; increase of percentage of Micromonospora and decrease of that of Streptomyces is presented with descending tidal level from K.candel forest to A.marina forest; the percentage of imperfect fungi is absolutely dominant in isolated fungi,of which Trichoderma,Aspergillus and Penicillum is dominant and conmon genera; microflor a declins with increasing soil depth,however,the percentage of Bacillus and Micromonospora increases relatively with it; the reason why microflora of soil is more in mangrove forest than in mud-flats at tributed to more abundant soil nutrition and better habitat in mangrove forests.Studies on antimicrobial activity reveals that antimicrobial activity of soil fungi is weaker than that of soil actinomycetes,so antibiogram of soil fungi is narrow while that of soil actinomycetes is wide; the genus Micromonospora should be worth paying attention to owing to its strong antimicrobial activities.
- microflora,
- antimicrobial activities,
- soil,
- mangrove

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References(40)

References

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