Faster acquisition of symbiotic partner by common mycorrhizal networks in early plant life stage
Varga, S., & Kytöviita, M.-M. (2016). Faster acquisition of symbiotic partner by common mycorrhizal networks in early plant life stage. Ecosphere, 7(1), Article e01222. https://doi.org/10.1002/ecs2.1222
Julkaistu sarjassa
EcospherePäivämäärä
2016Tekijänoikeudet
© 2016 Varga and Kytöviita. This is an open access article under the terms of the Creative Commons Attribution License.
Arbuscular mycorrhizal (AM) fungi usually improve plant performance yet our knowledge
about their effects on seed germination and early plant establishment is very limited. We performed a
factorial greenhouse experiment where the seeds from four low Arctic co-occurring mycorrhizal herbs
(Antennaria dioica, Campanula rotundifolia, Sibbaldia procumbens, and Solidago virgaurea) were germinated
alone or in the vicinity of an adult Sibbaldia plant with or without AM fungi; given either as spores or being
present in a common mycorrhizal network (CMN). Three different AM fungal species were examined
to assess species-specific differences in symbiont acquisition rate. Of the four plant species investigated,
the presence of AM fungi affected seed germination only in Campanula and this effect was dependent on
whether the AM fungi were present in the soil as spores or as a CMN. Overall, after germination, developing
seedlings showed AM fungal colonization in their roots as soon as 2 d after cotyledon emergence. Our
results show that CMN may provide germinating seedlings faster acquisition of the AM fungal partner
in comparison to acquisition from spores. Furthermore, there were AM species-specific differences in the
symbiont acquisition rate highlighting the importance of species identity in AM interactions. These findings
suggest that while AM fungi may not play a fundamental role during seed germination, plant community
composition may be affected by the species-specific AM fungal effects on seedling establishment
and CMN acquisition.
...
Julkaisija
Wiley-Blackwell; Ecological Society of AmericaISSN Hae Julkaisufoorumista
2150-8925Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/25734267
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