Chroakolemma gen. nov. (Leptolyngbyaceae, Cyanobacteria) from soil biocrusts in the semi-desert Central Region of Mexico

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897545" target="_blank" >RIV/60076658:12310/18:43897545 - isvavai.cz</a>

Result on the web

<a href="https://biotaxa.org/Phytotaxa/article/view/phytotaxa.367.3.1/34896" target="_blank" >https://biotaxa.org/Phytotaxa/article/view/phytotaxa.367.3.1/34896</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11646/phytotaxa.367.3.1" target="_blank" >10.11646/phytotaxa.367.3.1</a>

Result language

angličtina

Original language name

Chroakolemma gen. nov. (Leptolyngbyaceae, Cyanobacteria) from soil biocrusts in the semi-desert Central Region of Mexico

Original language description

Twelve strains of Leptolyngbya-like filaments were isolated from biological soil crust samples from two localities in the Central Region of Mexico. The strains were morphologically distinguished from most Synechococcalean species by the obligate presence of a blackish sheath. Phylogenetic analysis based on 16S rRNA gene sequence placed all strains into a strongly supported single clade sister to Scytolyngbya. The genetic identity between our strains and all other Synechococcales, including Scytolyngbya, was less than 95%, and the strains were further distinguished by morphology and terrestrial ecology. The conserved domains of the 16S-23S ITS region had secondary structures distinct from all other closely related genera, which included Scytolyngbya, Stenomitos, Chamaethrix, and Pantanalinema. Based on the combination of morphological, molecular, and ecological evidence, we here describe two species: Chroakolemma opaca gen. et sp. nov. and C. pellucida gen. et sp. nov. Based on the ability to form blackish sheaths, these two species are morphologically similar to Leptolyngbya edaphica, Chamaethrix vaginata and Trichocoleus badius. The latter two species have been sequenced and are phylogenetically distant from Chroakolemma. Leptolyngbya edaphica is a soil species described from Russia and shares other morphological similarities with Chroakolemma, including wide sheaths, coiled filaments, pale blue-green trichomes, and constricted cross-walls. We consider these characteristics diagnostic of Chroakolemma, and accordingly propose Chroakolemma edaphica comb. nov.

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

<a href="/en/project/GA15-11912S" target="_blank" >GA15-11912S: Phylogenetic establishment of cyanobacterial genera through multilocus of the generitypes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Phytotaxa

ISSN

1179-3155

e-ISSN

—

Volume of the periodical

367

Issue of the periodical within the volume

3

Country of publishing house

NZ - NEW ZEALAND

Number of pages

18

Pages from-to

201-218

UT code for WoS article

000443822100001

EID of the result in the Scopus database

2-s2.0-85053282484