Nitrate inhibition of germination in Ericaceae relates to seed size and mycoheterotrophy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00640073" target="_blank" >RIV/67985939:_____/25:00640073 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/25:10510132
Result on the web
<a href="https://doi.org/10.1111/1365-2435.14710" target="_blank" >https://doi.org/10.1111/1365-2435.14710</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/1365-2435.14710" target="_blank" >10.1111/1365-2435.14710</a>

Result language
angličtina
Original language name
Nitrate inhibition of germination in Ericaceae relates to seed size and mycoheterotrophy
Original language description
In previous studies we have shown that the germination of orchid seeds is inhibited by nitrate, and in some species very strongly. This probably reflects the ability of orchids to take up nitrogen from symbiotic fungi, which gives them a competitive advantage in sites with low nitrogen, and hence nitrate, availability in the soil. However, no other group of mycoheterotrophic plants has been investigated. In this study, we investigated one group of plants, the family Ericaceae, which contains closely related mycoheterotrophic and autotrophic (photosynthetic) species, and compared them to each other. We found high variability in germination responses to nitrate. Mycoheterotrophic species reacted significantly more negatively to nitrate compared to autotrophic species. However, the species responses to nitrate also strongly correlated with seed dimensions, as mycoheterotrophic plants generally have smaller seeds than autotrophic species. We have not been able to disentangle these two effects, nevertheless we can conclude that mycoheterotrophic plants in general, which nearly all produce tiny dust seeds, are likely to be negatively affected by nitrate.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project
<a href="/en/project/GN23-05310O" target="_blank" >GN23-05310O: Thief hunt: In search for plants stealing carbon on fungi</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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