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应用荧光探针ＦＭＡ和荧光胺，证明ＥＰＳ中多肽的一些基团如ＳＨ基和ＮＨ基参予了与根系粘质的相互作用。浓度可诱导ＥＰＳ中ＳＨ基和ＮＨ基数量的变化，并导致ＥＰＳ中多肽的构象改变，ＥＰＳ中的这些基团在粪产碱菌与水稻根系的结合过程起了重要作用
The use of fluorescent probes FMA and fluorescamine proved that some of the peptides in the EPS, such as SH and NH, participate in the interaction with root mucilage. The concentration induces a change in the amount of SH and NH groups in the EPS and leads to a conformational change of the polypeptide in EPS which plays an important role in the binding of Alcaligenes faecalis and rice roots