open access

https://hdl.handle.net/2115/945

Ecochemical Studies of Interrelationships between Epiphytic Bacteria and Host Plants via Secondary Metabolites

英語

rhizo-biocomplex

2005

日本農芸化学会

Bioscience Biotechnology And Biochemistry

69(8)

1427-1441

The plant surface, which is representative of the phyllopane and rhizoplane, is a characteristic habitat for microorganisms. In this review, the ecological roles of phytoepiphytic bacteria will be described. The phylloplane and rhizoplane, which are adjacent to the atmosphere and soil sphere respectively, accumulate topically and /or selectively release secondary metabolites that are specific to the plant genera and species which reside within these regions. Some epiphytes have abilities to decarboxylate xenobiotic phenolic acids that have accumulated in the plant tissues and surface as a majority of such secondary metabolites. In physicochemically stressed soil, rhizosphere microflora often remedy such microenvironments within the rhizosphere in order to assist in the survival of the host, and some of the microfloral compositions behave as if they were symbionts. Specifically, some Sphingomonas spp., which are frequently isolated from the rhizosphere of acidic soil-tolerant plants in tropical zones, make possible the development of a rhizo-biocomplex. In this review, the possibility of rhizosphere regulation utilizing such a rhizo-biocomplex is discussed.

学術雑誌論文

Version of Record

0916-8451