Are traps of Utricularia multifida and U. westonii active and do they create negative pressure?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00619333" target="_blank" >RIV/67985939:_____/25:00619333 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.55360/cpn541.la549" target="_blank" >https://doi.org/10.55360/cpn541.la549</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.55360/cpn541.la549" target="_blank" >10.55360/cpn541.la549</a>

Result language
angličtina
Original language name
Are traps of Utricularia multifida and U. westonii active and do they create negative pressure?
Original language description
Utricularia multifida and U. westonii are Australian species classed recently with the subgenus Polypompholyx, which is comprised of the most evolutionary basal species. Their traps bear all functional structures necessary for negative pressure generation and suction (“firing”), i.e., active prey catching, but traps from tissue-culture-raised plants are not known to fire. However, presumably, plants in situ are active. Traps of terrestrial plants of both species raised from tissue culture were used for measurement of the critical negative pressure to further elucidate whether or not they could fire. According to our results, traps of U. multifida can be considered closed (i.e., no water flow between the trap inside and outside takes place) while those of U. westonii can be considered open. This study confirms great functional differences between the underwater traps in these species grown naturally (in an aquatic state) and those grown terrestrially in tissue culture.n
Czech name
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Czech description
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Project
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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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