Unraveling the diversity of hyphal explorative traits among Rhizophagus irregularis genotypes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00598483" target="_blank" >RIV/61388971:_____/24:00598483 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s00572-024-01154-8" target="_blank" >https://link.springer.com/article/10.1007/s00572-024-01154-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00572-024-01154-8" target="_blank" >10.1007/s00572-024-01154-8</a>
Alternative languages
Result language
angličtina
Original language name
Unraveling the diversity of hyphal explorative traits among Rhizophagus irregularis genotypes
Original language description
Differences in functioning among various genotypes of arbuscular mycorrhizal (AM) fungi can determine their fitness under specific environmental conditions, although knowledge of the underlying mechanisms still is very fragmented. Here we compared seven homokaryotic isolates (genotypes) of Rhizophagus irregularis, aiming to characterize the range of intraspecific variability with respect to hyphal exploration of organic nitrogen (N) resources, and N supply to plants. To this end we established two experiments (one in vitro and one in open pots) and used N-15-chitin as the isotopically labeled organic N source. In Experiment 1 (in vitro), mycelium of all AM fungal genotypes transferred a higher amount of N-15 to the plants than the passive transfer of N-15 measured in the non-mycorrhizal (NM) controls. Noticeably, certain genotypes (e.g., LPA9) showed higher extraradical mycelium biomass production but not necessarily greater N-15 acquisition than the others. Experiment 2 (in pots) highlighted that some of the AM fungal genotypes (e.g., MA2, STSI) exhibited higher rates of targeted hyphal exploration of chitin-enriched zones, indicative of distinct N exploration patterns from the other genotypes. Importantly, there was a high congruence of hyphal exploration patterns between the two experiments (isolate STSI always showing highest efficiency of hyphal exploration and isolate L23/1 being consistently the lowest), despite very different (micro) environmental conditions in the two experiments. This study suggests possible strategies that AM fungal genotypes employ for efficient N acquisition, and how to measure them. Implications of such traits for local mycorrhizal community assembly still need to be understood.
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
10606 - Microbiology
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
2024
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
1432-1890
Volume of the periodical
34
Issue of the periodical within the volume
4
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
303-316
UT code for WoS article
001238183500001
EID of the result in the Scopus database
2-s2.0-85195187605