气候变化领域集成服务门户(CCPortal): Sugars dominate the seagrass rhizosphere

CCPortal

DOI	10.1038/s41559-022-01740-z
	Sugars dominate the seagrass rhizosphere
	Sogin E.M.; Michellod D.; Gruber-Vodicka H.R.; Bourceau P.; Geier B.; Meier D.V.; Seidel M.; Ahmerkamp S.; Schorn S.; D’Angelo G.; Procaccini G.; Dubilier N.; Liebeke M.
发表日期	2022
ISSN	2397-334X
英文摘要	Seagrasses are among the most efficient sinks of carbon dioxide on Earth. While carbon sequestration in terrestrial plants is linked to the microorganisms living in their soils, the interactions of seagrasses with their rhizospheres are poorly understood. Here, we show that the seagrass, Posidonia oceanica excretes sugars, mainly sucrose, into its rhizosphere. These sugars accumulate to μM concentrations—nearly 80 times higher than previously observed in marine environments. This finding is unexpected as sugars are readily consumed by microorganisms. Our experiments indicated that under low oxygen conditions, phenolic compounds from P. oceanica inhibited microbial consumption of sucrose. Analyses of the rhizosphere community revealed that many microbes had the genes for degrading sucrose but these were only expressed by a few taxa that also expressed genes for degrading phenolics. Given that we observed high sucrose concentrations underneath three other species of marine plants, we predict that the presence of plant-produced phenolics under low oxygen conditions allows the accumulation of labile molecules across aquatic rhizospheres. ? 2022, The Author(s).
语种	英语
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257190
作者单位	Max Planck Institute for Marine Microbiology, Bremen, Germany; University of California at Merced, Merced, CA, United States; MARUM—Center for Marine Environmental Sciences of the University of Bremen, Bremen, Germany; Institute of Biogeochemistry and Pollutant Dynamics, Department of Environmental Systems Science, Swiss Federal Institute of Technology, Zurich, Switzerland; Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany; Stazione Zoologica Anton Dohrn, Napoli, Italy
推荐引用方式 GB/T 7714	Sogin E.M.,Michellod D.,Gruber-Vodicka H.R.,et al. Sugars dominate the seagrass rhizosphere[J],2022.
APA	Sogin E.M..,Michellod D..,Gruber-Vodicka H.R..,Bourceau P..,Geier B..,...&Liebeke M..(2022).Sugars dominate the seagrass rhizosphere.Nature Ecology & Evolution.
MLA	Sogin E.M.,et al."Sugars dominate the seagrass rhizosphere".Nature Ecology & Evolution (2022).