Dead Rhizophagus irregularis biomass mysteriously stimulates plant growth
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43901088" target="_blank" >RIV/60076658:12310/20:43901088 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/20:00524898 RIV/61388971:_____/20:00524898 RIV/61389030:_____/20:00523825 RIV/44555601:13440/20:43895294
Result on the web
<a href="https://link.springer.com/article/10.1007/s00572-020-00937-z" target="_blank" >https://link.springer.com/article/10.1007/s00572-020-00937-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00572-020-00937-z" target="_blank" >10.1007/s00572-020-00937-z</a>
Alternative languages
Result language
angličtina
Original language name
Dead Rhizophagus irregularis biomass mysteriously stimulates plant growth
Original language description
Arbuscular mycorrhizal (AM) fungi establish symbiotic associations with many plant species, transferring significant amounts of soil nutrients such as phosphorus to plants and receiving photosynthetically fixed carbon in return. Functioning of AM symbiosis is thus based on interaction between two living partners. The importance of dead AM fungal biomass (necromass) in ecosystem processes remains unclear. Here, we applied either living biomass or necromass (0.0004 potting substrate weight percent) of monoxenically produced AM fungus (Rhizophagus irregularis) into previously sterilized potting substrate planted with Andropogon gerardii. Plant biomass production significantly improved in both treatments as compared to non-amended controls. Living AM fungus, in contrast to the necromass, specifically improved plant acquisition of nutrients normally supplied to the plants by AM fungal networks, such as phosphorus and zinc. There was, however, no difference between the two amendment treatments with respect to plant uptake of other nutrients such as nitrogen and/or magnesium, indicating that the effect on plants of the AM fungal necromass was not primarily nutritional. Plant growth stimulation by the necromass could thus be either due to AM fungal metabolites directly affecting the plants, indirectly due to changes in soil/root microbiomes or due to physicochemical modifications of the potting substrate. In the necromass, we identified several potentially bioactive molecules. We also provide experimental evidence for significant differences in underground microbiomes depending on the amendment with living or dead AM fungal biomass. This research thus provides the first glimpse into possible mechanisms responsible for observed plant growth stimulation by the AM fungal necromass.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mycorrhiza
ISSN
0940-6360
e-ISSN
—
Volume of the periodical
30
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
63-77
UT code for WoS article
000516375300001
EID of the result in the Scopus database
2-s2.0-85079706325