A new aspect of grassland vegetation dynamics: cyanobacterium colonies affect establishment success of plants
  • Metaadatok
Tartalom: http://real.mtak.hu/55523/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published


Type = Article
Cím:
A new aspect of grassland vegetation dynamics: cyanobacterium colonies affect establishment success of plants
Létrehozó:
Sonkoly, Judit
ValkĂł, Orsolya
Deák, Balázs
Miglécz, Tamás
TĂłth, Katalin
RadĂłcz, Szilvia
Kelemen, András
Riba, Milán
Vasas, Gábor
Tóthmérész, Béla
Török, Péter
Kiadó:
Wiley
Dátum:
2016-11-26
Téma:
QH540 Ecology / ökológia
QK Botany / növénytan
QK30 Plant ecology. Plant ethology / növényökológia
Tartalmi leírás:
Aims:
Cyanobacteria may have considerable effects on community functioning,
mostly because they produce various metabolites that adversely affect other
organisms. Here we synthesized existing knowledge about the effects of toxic
cyanobacteria on the germination and growth of terrestrial plants. We also
aimed to test the chemical effects of a
Nostoc
(Cyanobacteria) extract on the ger-
mination and growth of species of alkali habitats to investigate whether
cyanobacteria can alter community structure and diversity via affecting the
establishment success of plants.
Location:
Cyanobacterium colonies from the Hortob
ďż˝
agy National Park, east
Hungary; indoor experiments at the University of Debrecen, Hungary.
Methods:
To review the effects of toxic cyanobacteria on terrestrial plants, we
conducted a literature search. To test these effects on native plants, field-col-
lected
Nostoc
colonies were used to prepare a cell-free water extract, and treat-
ments (watering with
Nostoc
extract and watering with tap water) were tested
on 3
9
100 seeds of nine alkali grassland species. After 5 wk, seedling number,
seedling length and fresh and dry weights were measured.
Results:
We collected data on the effects of cyanobacteria on 27 species, but
they were mostly focused on crops irrigated with cyanobacteria-containing
water, not on floras native to natural ecosystems. In the germination experi-
ment species identity and treatment had a significant effect on almost all vari-
ables, but their interaction only affected germination rate and fresh weight.
Fresh weight decreased significantly only in the invasive
Hordeum jubatum
,but
germination rate decreased significantly in five species.
Conclusions:
Based on our findings, terrestrial cyanobacterium colonies can
affect the establishment success of grassland plants, through which they may be
important in determining which species can be incorporated into the community. Thus, cyanobacteria might play an important role in shaping diversity, species composition and the structure of natural plant communities.
Nyelv:
magyar
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Sonkoly, Judit and Valkó, Orsolya and Deák, Balázs and Miglécz, Tamás and Tóth, Katalin and Radócz, Szilvia and Kelemen, András and Riba, Milán and Vasas, Gábor and Tóthmérész, Béla and Török, Péter (2016) A new aspect of grassland vegetation dynamics: cyanobacterium colonies affect establishment success of plants. JOURNAL OF VEGETATION SCIENCE. pp. 1-9. ISSN 1100-9233
Kapcsolat:
https://doi.org/10.1111/jvs.12503