Progress, challenges and future directions in marine organic-walled dinoflagellate cyst research: New insights from an international workshop

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F25%3A00639920" target="_blank" >RIV/61388971:_____/25:00639920 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0377839825000672?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0377839825000672?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.marmicro.2025.102502" target="_blank" >10.1016/j.marmicro.2025.102502</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Progress, challenges and future directions in marine organic-walled dinoflagellate cyst research: New insights from an international workshop

Popis výsledku v původním jazyce

Cysts are resistant life-cycle stages that play a key role in the survival and dispersal of some dinoflagellate species. Given their preservation and fossilisation potential, the organic-walled dinoflagellate cysts have been widely used as bioindicators of past and present environmental conditions. Living cysts are studied extensively due to their roles in bloom initiation, termination, and species adaptation. The use of cysts in various fields such as taxonomy, biogeography, evolution, (palaeo)ecology, and (palaeo)oceanography has expanded significantly in recent years. In this paper, we review recent developments, identify research needs, and outline future directions in marine organic-walled dinoflagellate cyst research based on round-table discussions held during the International Workshop on Dinoflagellate Cysts, which took place from 18 to 21 June 2024 in Vigo (Spain). Key priorities in taxonomy, evolution, and biogeography include the need to continue establishing connections between the cyst and motile forms along with their associated sequences, particularly for Harmful Algal Bloom (HAB) species, and updating reference databases for metabarcoding studies. Emerging molecular techniques, such as metabarcoding, provide complementary information on cyst diversity, distribution, and geographic connectivity, thereby aiding in the monitoring and reconstruction of HAB dynamics. Given the impacts of climate change on biogeographical ranges, cysts could serve as valuable indicators for tracking HAB shifts. Combining multi-omics with morphological methods could offer deeper insights into character evolution and support the construction of the dinoflagellate tree of life. Advances in the biogeochemical analysis of dinoflagellate cyst walls, particularly through the detailed study of dinosporin, are also promising for evolutionary research, as demonstrated by recent methodological advances in Fourier Transform Infrared (FTIR) and Raman spectroscopy. In palaeoceanography and palaeoecology, improving quantitative cyst-based reconstructions requires expanding the database of living cyst assemblages and their relationships with environmental variables, especially in underrepresented regions, notably in the Southern Hemisphere. Despite progress towards standardisation, there remains no universally adopted standardised methods for extracting and concentrating cysts from sediments or for quantifying cysts-essential steps for inter-site comparisons. Additionally, sediment trap studies and field observations of associated plankton are needed to complement surface sediment research and enhance our understanding of species ecology. The emerging field of palaeogenomics is promising as it complements cyst-based research. Finally, the integration of biological and geological studies to address key scientific questions is emphasised. For example, investigating the discrepancy between the accepted geological emergence of dinoflagellates and earlier suggestions from geochemistry, molecular analysis, and re-examination of acritarchs could help resolve the early phylogeny of the group.

Název v anglickém jazyce

Progress, challenges and future directions in marine organic-walled dinoflagellate cyst research: New insights from an international workshop

Popis výsledku anglicky

Cysts are resistant life-cycle stages that play a key role in the survival and dispersal of some dinoflagellate species. Given their preservation and fossilisation potential, the organic-walled dinoflagellate cysts have been widely used as bioindicators of past and present environmental conditions. Living cysts are studied extensively due to their roles in bloom initiation, termination, and species adaptation. The use of cysts in various fields such as taxonomy, biogeography, evolution, (palaeo)ecology, and (palaeo)oceanography has expanded significantly in recent years. In this paper, we review recent developments, identify research needs, and outline future directions in marine organic-walled dinoflagellate cyst research based on round-table discussions held during the International Workshop on Dinoflagellate Cysts, which took place from 18 to 21 June 2024 in Vigo (Spain). Key priorities in taxonomy, evolution, and biogeography include the need to continue establishing connections between the cyst and motile forms along with their associated sequences, particularly for Harmful Algal Bloom (HAB) species, and updating reference databases for metabarcoding studies. Emerging molecular techniques, such as metabarcoding, provide complementary information on cyst diversity, distribution, and geographic connectivity, thereby aiding in the monitoring and reconstruction of HAB dynamics. Given the impacts of climate change on biogeographical ranges, cysts could serve as valuable indicators for tracking HAB shifts. Combining multi-omics with morphological methods could offer deeper insights into character evolution and support the construction of the dinoflagellate tree of life. Advances in the biogeochemical analysis of dinoflagellate cyst walls, particularly through the detailed study of dinosporin, are also promising for evolutionary research, as demonstrated by recent methodological advances in Fourier Transform Infrared (FTIR) and Raman spectroscopy. In palaeoceanography and palaeoecology, improving quantitative cyst-based reconstructions requires expanding the database of living cyst assemblages and their relationships with environmental variables, especially in underrepresented regions, notably in the Southern Hemisphere. Despite progress towards standardisation, there remains no universally adopted standardised methods for extracting and concentrating cysts from sediments or for quantifying cysts-essential steps for inter-site comparisons. Additionally, sediment trap studies and field observations of associated plankton are needed to complement surface sediment research and enhance our understanding of species ecology. The emerging field of palaeogenomics is promising as it complements cyst-based research. Finally, the integration of biological and geological studies to address key scientific questions is emphasised. For example, investigating the discrepancy between the accepted geological emergence of dinoflagellates and earlier suggestions from geochemistry, molecular analysis, and re-examination of acritarchs could help resolve the early phylogeny of the group.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Marine Micropaleontology

ISSN

0377-8398

e-ISSN

1872-6186

Svazek periodika

201

Číslo periodika v rámci svazku

December 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

29

Strana od-do

102502

Kód UT WoS článku

001585481100001

EID výsledku v databázi Scopus

2-s2.0-105015453895