作物驯化对根际微生物组的选择效应

A selecting effect of crop domestication on rhizomicrobiome

  • 摘要: 驯化是指经过人为干预技术对野生物种的某些可利用性状加以选择、修饰和利用的过程。驯化不仅会引起植物表型的变化,还会进一步导致植物根系形态结构以及相应根际次生代谢产物含量的变化,最终导致根际微生物群落结构和功能发生变化。本文综述了作物驯化过程对作物表型、根系形态及对根际微生物群落结构的影响,初步探讨了作物驯化对根际微生物影响机制,并着重阐述了共生微生物包括丛枝菌根真菌以及根瘤菌与作物驯化的关系,为更好地利用作物野生近缘种的根际有益微生物奠定理论基础。

     

    Abstract: Crop domestication refers to the selection, modification and utilization of some available traits from wild relatives of cultivated species by artificial interventions.Crop domestication process changes plant phenotype, root architecture and root secondary metabolites, which finally changes the structure and function of the rhizosphere microorganism.We reviewed the influences of the crop domestication on the crop phenotype and root architecture, and the corresponding rhizomicrobiome change as well.We discussed the effect of domestication on rhizomicrobiome, and then focused on the relationships between domestication and symbiotic microorganisms including the arbuscular mycorrhizal fungi and rhizobium.This review would contribute more to selecting plant-beneficial microorganisms in the rhizosphere from wild plant species.

     

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