Bioactive molecules in soil ecosystems: masters of the underground.

Bioactive molecules in soil ecosystems: masters of the underground.
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土壤生态系统中的生物活性分子:地下的主人

DOI:
10.3390/ijms14058841
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发表时间:
2013-04-24
影响因子:
5.6
通讯作者:
Zhuang G
Zhuang G
中科院分区:
生物学2区
文献类型:
--
作者:
Zhuang X;Gao J;Ma A;Fu S;Zhuang G

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通过根系、微生物和土壤动物之间生态系统层面的相互作用,复杂的生物和生态过程发生在根际。在过去的十年中,对根际的研究表明,当根、微生物和土壤动物彼此物理接触时,生物活性分子交换通常以细胞间信号的形式介导这些相互作用,从而为合作伙伴的成功相互作用做好准备。尽管生物活性分子在可持续农业中很重要,但人们对其众多功能知之甚少,并且通过改变生态过程来改善植物健康和生产力仍然很困难。在这篇综述中,我们描述了地下生态系统中存在的主要生物活性分子(即类黄酮、胞外多糖、抗生素和群体感应信号),并讨论了这些分子如何影响微生物群落、养分可用性和植物防御反应。
Complex biological and ecological processes occur in the rhizosphere through ecosystem-level interactions between roots, microorganisms and soil fauna. Over the past decade, studies of the rhizosphere have revealed that when roots, microorganisms and soil fauna physically contact one another, bioactive molecular exchanges often mediate these interactions as intercellular signal, which prepare the partners for successful interactions. Despite the importance of bioactive molecules in sustainable agriculture, little is known of their numerous functions, and improving plant health and productivity by altering ecological processes remains difficult. In this review, we describe the major bioactive molecules present in below-ground ecosystems (i.e., flavonoids, exopolysaccharides, antibiotics and quorum-sensing signals), and we discuss how these molecules affect microbial communities, nutrient availability and plant defense responses.
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