Phytohormone profiles in leaves and traps of three Genlisea (Lentibulariaceae) species

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00638728" target="_blank" >RIV/61389030:_____/25:00638728 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/25:00638728 RIV/61989592:15310/25:73634378

Result on the web

<a href="https://doi.org/10.1016/j.aquabot.2025.103920" target="_blank" >https://doi.org/10.1016/j.aquabot.2025.103920</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquabot.2025.103920" target="_blank" >10.1016/j.aquabot.2025.103920</a>

Result language

angličtina

Original language name

Phytohormone profiles in leaves and traps of three Genlisea (Lentibulariaceae) species

Original language description

Genlisea (Lentibulariaceae) is a tropical genus of rootless wetland carnivorous plants. The belowground leaf (rhizophyll) is a Y-shaped organ which functions as an 'eel trap' for soil microorganisms. We compared phytohormonal profiles (cytokinins, auxins, ABA) in green photosynthetic leaves, upper trap segments (including the vesicle for prey digestion) and lower branched trap segments functioning as trap entrances, in three Genlisea species from a pot culture. Relatively low contents of total cytokinins (35-1017 nmol kg- 1, dry weight) and active cytokinins (7-213 nmol kg- 1) occurred in the species. Those in upper trap segments, which fulfill demanding physiological functions, usually exceeded several times those in branched trap segments or green leaves. Generally, auxin contents were enormously variable across the species. Auxin contents (both IAA and total contents) in both organ types in G. hispidula and G. uncinata exceeded those in the G. lobata x flexuosa hybrid by one-three orders of magnitude. The highest free IAA content was usually in green leaves followed by upper and branched trap segments. However, the ABA content, as a hormonal criterion for plant dormancy, was consistently very low in all organs and species, indicating no growth limitation by this inhibitory hormone. The comparison of these hormone profiles with those from the literature in the phylogenetically related sister genus Utricularia (six aquatic species) has indicated that the very low cytokinin contents in Genlisea organs could reflect their very low growth rate as compared to rapidly growing aquatic Utricularia species.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

—

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

Name of the periodical

Aquatic Botany

ISSN

0304-3770

e-ISSN

1879-1522

Volume of the periodical

201

Issue of the periodical within the volume

NOV 2025

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

5

Pages from-to

103920

UT code for WoS article

001525448500001

EID of the result in the Scopus database

2-s2.0-105009241352