ORIGINAL ARTICLE
Changes in the growth and reproduction of a clonal plant as a result of disruption of mycorrhizal network
| 1 | Adam Mickiewicz University, Faculty of Biology, Department of
Systematic and Environmental Botany, Poznań, Poland |
| 2 | Siedlce University of Natural Sciences and Humanities, Faculty of
Natural Science, Department of Environmental Studies and Biological
Education, Siedlce, Poland |
Online publication date: 2021-12-31
Publication date: 2021-12-31
Plant and Fungal Systematics 2021; 66(2): 195–200
KEYWORDS
ABSTRACT
In a clonal network, a mother plant is connected with daughter ramets. During
network development, new ramets may encounter barriers that disrupt network integrity.
As a result, resource allocation within a network is disturbed. In this study, the effect
of network integrity disruption on the size of ramets and their sexual reproduction was
investigated in mouse-ear hawkweed (Hieracium pilosella). Three types of networks were
formed experimentally with unlimited resource allocation, with limited resource allocation
between a mother plant and its daughter ramets and with limited resource allocation between
all ramets. Networks were either supported by the presence of a mycorrhizal fungus or
restricted by its absence. We found that the size of the mother and the effectiveness of sexual
reproduction did not differ among network types. The length and dry mass of runners were
higher in cases with limited resource exchange between a mother plant and its daughters.
In the clonal plant network without any barriers to connection, a higher number of rosettes
and lower dry mass of daughters were recorded. The mean number of daughter flowers
did not differ among the network types. Mycorrhizal network is one of the most important
factors for the sexual reproduction of clonal plants. With a reduced mycorrhizal network,
plants invested in clonal growth.
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