Dynamics of oxygen and carbon dioxide in rhizospheres of Lobelia dortmanna - a planar optode study of belowground gas exchange between plants and sediment

The New Phytologist
Nikola LenzewskiKetil Koop-Jakobsen

Abstract

Root-mediated CO2 uptake, O2 release and their effects on O2 and CO2 dynamics in the rhizosphere of Lobelia dortmanna were investigated. Novel planar optode technology, imaging CO2 and O2 distribution around single roots, provided insights into the spatiotemporal patterns of gas exchange between roots, sediment and microbial community. In light, O2 release and CO2 uptake were pronounced, resulting in a distinct oxygenated zone (radius: c. 3 mm) and a CO2 -depleted zone (radius: c. 2 mm) around roots. Simultaneously, however, microbial CO2 production was stimulated within a larger zone around the roots (radius: c. 10 mm). This gave rise to a distinct pattern with a CO2 minimum at the root surface and a CO2 maximum c. 2 mm away from the root. In darkness, CO2 uptake ceased, and the CO2 -depleted zone disappeared within 2 h. By contrast, the oxygenated root zone remained even after 8 h, but diminished markedly over time. A tight coupling between photosynthetic processes and the spatiotemporal dynamics of O2 and CO2 in the rhizosphere of Lobelia was demonstrated, and we suggest that O2 -induced stimulation of the microbial community in the sediment increases the supply of inorganic carbon for photosynthesis by building up a CO2 res...Continue Reading

References

Sep 30, 2006·Environmental Science & Technology·Lubos PolereckyPeter Stief
Jun 3, 2008·The New Phytologist·Claus Lindskov Møller, Kaj Sand-Jensen
Feb 17, 2009·Annals of Botany·Anders Winkel, Jens Borum
Jun 12, 2010·Angewandte Chemie·Xu-dong WangOtto S Wolfbeis
Dec 24, 2010·The New Phytologist·Claus Lindskov Møller, Kaj Sand-Jensen
Mar 28, 2013·Annals of Botany·Stephan BlossfeldPhilippe Hinsinger
May 24, 2015·Analytica Chimica Acta·Jakob SantnerRonnie N Glud
Sep 6, 2015·Global Change Biology·Peter MuellerJ Patrick Megonigal
Jul 9, 2016·The Science of the Total Environment·Chao HanXianchuan Xie
Mar 7, 2017·The Science of the Total Environment·Ketil Koop-JakobsenFrank Wenzhöfer
Sep 6, 2017·Methods in Molecular Biology·Aprajita Kumari, Kapuganti Jagadis Gupta

❮ Previous
Next ❯

Citations

May 6, 2019·FEMS Microbiology Ecology·Vincent V ScholzRainer U Meckenstock
Jul 22, 2018·Frontiers in Microbiology·Mirco RodeghieroIlaria Pertot
Jul 26, 2019·Journal of Advanced Research·Akifumi Sugiyama
Mar 20, 2021·Frontiers in Plant Science·Zhiqiang PangYi Cheng
Jun 29, 2021·Frontiers in Plant Science·Ketil Koop-JakobsenPeter Mueller
Oct 24, 2021·The Science of the Total Environment·K Benjamin Woodward, Deborah Hofstra
Nov 18, 2021·The Science of the Total Environment·Samantha C NyerRoy E Price

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.