A mesophilic relative of common glacier algae, Ancylonema palustre sp. nov., provides insights into the induction of vacuolar pigments in zygnematophytes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F24%3A10489165" target="_blank" >RIV/00216208:11310/24:10489165 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=SyPm5Woa6c" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=SyPm5Woa6c</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/1462-2920.16680" target="_blank" >10.1111/1462-2920.16680</a>
Alternative languages
Result language
angličtina
Original language name
A mesophilic relative of common glacier algae, Ancylonema palustre sp. nov., provides insights into the induction of vacuolar pigments in zygnematophytes
Original language description
The green algae of the genus Ancylonema, which belong to the zygnematophytes, are prevalent colonizers of glaciers worldwide. They display a striking reddish-brown pigmentation in their natural environment, due to vacuolar compounds related to gallic acid. This pigmentation causes glacier darkening when these algae bloom, leading to increased melting rates. The Ancylonema species known so far are true psychrophiles, which hinders experimental work and limits our understanding of these algae. For instance, the biosynthesis, triggering factors, and biological function of Ancylonema's secondary pigments remain unknown. In this study, we introduce a mesophilic Ancylonema species, A. palustre sp. nov., from temperate moorlands. This species forms the sister lineage to all known psychrophilic strains. Despite its morphological similarity to the latter, it exhibits unique autecological and photophysiological characteristics. It allows us to describe vegetative and sexual cellular processes in great detail. We also conducted experimental tests for abiotic factors that induce the secondary pigments of zygnematophytes. We found that low nutrient conditions combined with ultraviolet B radiation result in vacuolar pigmentation, suggesting a sunscreen function. Our thriving, bacteria-free cultures of Ancylonema palustre will enable comparative genomic studies of mesophilic and extremophilic zygnematophytes. These studies may provide insights into how Ancylonema species colonized the world's glaciers.
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
<a href="/en/project/GA24-10019S" target="_blank" >GA24-10019S: Snow algae blooms under climate change: unravelling the diversity patterns and seasonal dynamics to understand their current and future distribution</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
Environmental Microbiology
ISSN
1462-2912
e-ISSN
1462-2920
Volume of the periodical
26
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
16
Pages from-to
e16680
UT code for WoS article
001280751500001
EID of the result in the Scopus database
2-s2.0-85200037254