Revision of the pantropical genus Brasilonema (Nostocales, Cyanobacteria), with the description of 24 species new to science

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00605737" target="_blank" >RIV/60077344:_____/24:00605737 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/24:43908647 RIV/62690094:18470/24:50021877

Výsledek na webu

<a href="https://doi.org/10.5507/fot.2024.002" target="_blank" >https://doi.org/10.5507/fot.2024.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5507/fot.2024.002" target="_blank" >10.5507/fot.2024.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Revision of the pantropical genus Brasilonema (Nostocales, Cyanobacteria), with the description of 24 species new to science

Popis výsledku v původním jazyce

Brasilonema was separated from Scytonema only in 2007 (FIORE et al. 2007). It possesses diagnostic morphological characteristics such as vacuole-like structures in older cells, frequent purple pigmentation of cells, rare false branching and fasciculate growth of filaments. Prior to this study, Brasilonema was always found attached to the substrate in subaerophytic habitats, exclusively in tropical-subtropical biomes (Brazil, Guadeloupe, Hawaii, Mexico). We have gathered 76 new Brasilonema strains from North, Central and South America, central Africa, South and East Asia and Europe, including specialized subaerophytic habitats in temperate climates, and applied a polyphasic approach to their species delineation. All taxa were first examined morphologically and subsequently their relationships were tested using the traditionally applied 16S rRNA gene sequence together with three additional markers (nifD, rpoC1, rbcLX). The results revealed close relationships between specimens obtained from very distant localities (different continents) as well as phylogenetic distance between single Brasilonema strains collected from the same biotope. Our results provide evidence that Brasilonema, although previously overlooked (or misidentified), is a morphologically easy genus to distinguish that is common over the world in tropical and subtropical regions with humid climate. It can be also found in tropical greenhouses, power-plant cooling towers and other microhabitats that mimic subtropical to tropical conditions in other climatic regions. We conclude that Brasilonema is a pantropical genus, there are few geographical constraints in Brasilonema dispersal, and its absence in natural habitats in temperate and polar climatic zones may be due to intolerance to desiccation or winter freezing.

Název v anglickém jazyce

Revision of the pantropical genus Brasilonema (Nostocales, Cyanobacteria), with the description of 24 species new to science

Popis výsledku anglicky

Brasilonema was separated from Scytonema only in 2007 (FIORE et al. 2007). It possesses diagnostic morphological characteristics such as vacuole-like structures in older cells, frequent purple pigmentation of cells, rare false branching and fasciculate growth of filaments. Prior to this study, Brasilonema was always found attached to the substrate in subaerophytic habitats, exclusively in tropical-subtropical biomes (Brazil, Guadeloupe, Hawaii, Mexico). We have gathered 76 new Brasilonema strains from North, Central and South America, central Africa, South and East Asia and Europe, including specialized subaerophytic habitats in temperate climates, and applied a polyphasic approach to their species delineation. All taxa were first examined morphologically and subsequently their relationships were tested using the traditionally applied 16S rRNA gene sequence together with three additional markers (nifD, rpoC1, rbcLX). The results revealed close relationships between specimens obtained from very distant localities (different continents) as well as phylogenetic distance between single Brasilonema strains collected from the same biotope. Our results provide evidence that Brasilonema, although previously overlooked (or misidentified), is a morphologically easy genus to distinguish that is common over the world in tropical and subtropical regions with humid climate. It can be also found in tropical greenhouses, power-plant cooling towers and other microhabitats that mimic subtropical to tropical conditions in other climatic regions. We conclude that Brasilonema is a pantropical genus, there are few geographical constraints in Brasilonema dispersal, and its absence in natural habitats in temperate and polar climatic zones may be due to intolerance to desiccation or winter freezing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA15-11912S" target="_blank" >GA15-11912S: Fylogenetické vymezení rodů sinic pomocí multilokusové analýzy typových druhů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Fottea

ISSN

1802-5439

e-ISSN

1805-4927

Svazek periodika

24

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

48

Strana od-do

137-184

Kód UT WoS článku

001389337800001

EID výsledku v databázi Scopus

2-s2.0-85201016541