Practical application of methanol-mediated mutualistic symbiosis between Methylobacterium species and a roof greening moss, Racomitrium japonicum

Bryophytes, or mosses, are considered the most maintenance-free materials for roof greening. Racomitrium species are most often used due to their high tolerance to desiccation. Because they grow slowly, a technology for forcing their growth is desired. We succeeded in the efficient production of R....

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Veröffentlicht in:PloS one 2012-03, Vol.7 (3), p.e33800-e33800
Hauptverfasser: Tani, Akio, Takai, Yuichiro, Suzukawa, Ikko, Akita, Motomu, Murase, Haruhiko, Kimbara, Kazuhide
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Takai, Yuichiro
Suzukawa, Ikko
Akita, Motomu
Murase, Haruhiko
Kimbara, Kazuhide
description Bryophytes, or mosses, are considered the most maintenance-free materials for roof greening. Racomitrium species are most often used due to their high tolerance to desiccation. Because they grow slowly, a technology for forcing their growth is desired. We succeeded in the efficient production of R. japonicum in liquid culture. The structure of the microbial community is crucial to stabilize the culture. A culture-independent technique revealed that the cultures contain methylotrophic bacteria. Using yeast cells that fluoresce in the presence of methanol, methanol emission from the moss was confirmed, suggesting that it is an important carbon and energy source for the bacteria. We isolated Methylobacterium species from the liquid culture and studied their characteristics. The isolates were able to strongly promote the growth of some mosses including R. japonicum and seed plants, but the plant-microbe combination was important, since growth promotion was not uniform across species. One of the isolates, strain 22A, was cultivated with R. japonicum in liquid culture and in a field experiment, resulting in strong growth promotion. Mutualistic symbiosis can thus be utilized for industrial moss production.
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Racomitrium species are most often used due to their high tolerance to desiccation. Because they grow slowly, a technology for forcing their growth is desired. We succeeded in the efficient production of R. japonicum in liquid culture. The structure of the microbial community is crucial to stabilize the culture. A culture-independent technique revealed that the cultures contain methylotrophic bacteria. Using yeast cells that fluoresce in the presence of methanol, methanol emission from the moss was confirmed, suggesting that it is an important carbon and energy source for the bacteria. We isolated Methylobacterium species from the liquid culture and studied their characteristics. The isolates were able to strongly promote the growth of some mosses including R. japonicum and seed plants, but the plant-microbe combination was important, since growth promotion was not uniform across species. 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Racomitrium species are most often used due to their high tolerance to desiccation. Because they grow slowly, a technology for forcing their growth is desired. We succeeded in the efficient production of R. japonicum in liquid culture. The structure of the microbial community is crucial to stabilize the culture. A culture-independent technique revealed that the cultures contain methylotrophic bacteria. Using yeast cells that fluoresce in the presence of methanol, methanol emission from the moss was confirmed, suggesting that it is an important carbon and energy source for the bacteria. We isolated Methylobacterium species from the liquid culture and studied their characteristics. The isolates were able to strongly promote the growth of some mosses including R. japonicum and seed plants, but the plant-microbe combination was important, since growth promotion was not uniform across species. One of the isolates, strain 22A, was cultivated with R. japonicum in liquid culture and in a field experiment, resulting in strong growth promotion. Mutualistic symbiosis can thus be utilized for industrial moss production.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>22479445</pmid><doi>10.1371/journal.pone.0033800</doi><oa>free_for_read</oa></addata></record>
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subjects Agriculture
Arabidopsis - growth & development
Arachis hypogaea
Bacteria
Biology
Brassica campestris
Bryophyta
Bryophyta - growth & development
Bryophyta - metabolism
Bryophytes
Cell culture
Deoxyribonucleic acid
Desiccation
DNA
Drinking water
Drying
Flowers & plants
Funaria hygrometrica
Glycine max
Greening
Heat
Hypotheses
Liquid culture
Marchantiales
Methanol
Methanol - metabolism
Methylobacterium - growth & development
Methylobacterium - metabolism
Methylotrophic bacteria
Microorganisms
Mosses
Nicotiana - growth & development
Physiology
Plant growth
Plant sciences
Production capacity
Promotion
Pseudomonas fluorescens
Racomitrium
Soils
Species
Sustainable living
Symbiosis
Technology application
Urban areas
Yeast
title Practical application of methanol-mediated mutualistic symbiosis between Methylobacterium species and a roof greening moss, Racomitrium japonicum
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