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首页> 外文期刊>Symbiosis >Effects of the symbiosis between fungal endophytes and Atractylodes lancea on rhizosphere and phyllosphere microbial communities
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Effects of the symbiosis between fungal endophytes and Atractylodes lancea on rhizosphere and phyllosphere microbial communities

机译：真菌内生菌与白术共生对根际和叶际微生物群落的影响

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Tissue-cultured plantlets of Atractylodes lancea were inoculated with the endophytes AL4 (Cunninghamella sp.) and AL12 (Gilmaniella sp.), and subsequently transplanted into soil after hardening of the tissue-cultured plantlets. We investigated rhizospheric and phyllospheric microbial communities using culture-based and culture-independent methods. Energy spectrum analysis, high performance liquid chromatography, and other assay methods were employed to quantify the elements in the leaves, and the soluble sugars, free amino acids and organic acids in the rhizosphere. The results showed that the endophytes enhanced the diversity and size of the rhizospheric microbial populations. In the phyllosphere, AL4 (Cunninghamella sp.) enhanced the diversity and size of bacterial populations, while AL12 (Gilmaniella sp.) enhanced the diversity and size of fungal populations. The dominant bacterial genera were Microbacterium, Kocuria and Sphingomon in the endophytes-inoculated groups, and Acinetobacter and Bacillus in the endophytes-free group. While Acremonium and Curvularia were the dominant fungal genera in the phyllosphere of endophytes-inoculated groups, Fusarium and Penicillum were most common in the endophytes-free group. AL4 (Cunninghamella sp.) enhanced the rhizospheric microbial population size and diversity by increasing rhizospheric free amino acids, while AL12 (Gilmaniella sp.) altered the rhizospheric microbes by changing concentration of soluble sugars in the rhizosphere. Elemental levels in the phyllosphere and the nutrients in the rhizosphere varied among the treatments and may also have influenced the microbial communities.
机译：用内生菌AL4（Cunninghamella sp。）和AL12（Gilmaniella sp。）接种白术的组织培养小植株，然后在组织培养小植株变硬后移植到土壤中。我们使用基于文化和独立于文化的方法调查了根际和根际微生物群落。用能谱分析，高效液相色谱法和其他测定方法对叶片中的元素以及根际中的可溶性糖，游离氨基酸和有机酸进行定量。结果表明，内生菌增加了根际微生物种群的多样性和大小。在叶层，AL4（Cunninghamella sp。）增强了细菌种群的多样性和大小，而AL12（Gilmaniella sp。）增强了真菌种群的多样性和大小。内生菌接种组中的优势细菌属是微细菌，科库里亚和Sphingomon，无内生菌组中的不动杆菌属和芽孢杆菌。顶生菌属和弯曲菌是内生菌接种组的叶缘中的主要真菌属，而镰刀菌属和青霉菌在无内生菌的组中最常见。 AL4（Cunninghamella sp。）通过增加根际中的游离氨基酸来增强根际微生物的种群数量和多样性，而AL12（Gilmaniella sp。）通过改变根际中可溶性糖的浓度来改变根际微生物。在处理之间，根际层中的元素水平和根际中的营养水平各不相同，也可能影响了微生物群落。

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