Journal
FOTTEA
Volume 21, Issue 1, Pages 82-99Publisher
CZECH PHYCOLOGICAL SOC
DOI: 10.5507/fot.2020.019
Keywords
Scytonemataceae; 16S rRNA; 16S-23S rRNA ITS; subtropical; aerophytic; terrestrial; greenhouse; diversity
Categories
Funding
- US Department of Agriculture -National Institute of Food and Agriculture Hatch project [FLA-FTL-005697]
- Florida Nursery, Growers, and Landscape Association (FNGLA) Endowed Research Fund at the University of Florida/IFAS
- Florida Sea Grant College Program of the U.S. Department of Commerce's National Oceanic and Atmospheric Administration (NOAA) [NA 18OAR4170085]
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A study in Florida greenhouses found mat forming algae, mainly Brasilonema species. By observing and analyzing the macroscopic and microscopic morphological characteristics of the algae, three new species of Brasilonema were discovered.
Florida is a diverse region that supports abundant cyanobacterial diversity, especially in terrestrial environments. To exploit this environment for cyanobacterial diversity, several greenhouses from central Florida were sampled to identify common nuisance and contaminating algae. Most of the algae observed were mat forming, covering nursery pots, plants, and equipment which were macro- and microscopically morphologically analogous to Brasilonema. Although macroscopic thallus morphology was similar among the samples, microscopic morphological characteristics such as size, color, and sheath formation were disparate. To uncover the cryptic diversity, mats were processed for species isolation, culture, and molecular taxonomic identification. A total of eleven Brasilonema strains were isolated into culture and systematically identified using 16S rRNA and 16S-23S rRNA ITS sequences. Based on morphology and molecular data, five species ofBrasilonema were found and three are new to science: B. floreae, B. santannae, and B. wernerae.
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