A5090855875- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Diatoms and Algae Research
- Marine and coastal ecosystems
- Algal biology and biofuel production
- Freshwater macroinvertebrate diversity and ecology
- Coral and Marine Ecosystems Studies
- Biocrusts and Microbial Ecology
- Lichen and fungal ecology
- Coastal wetland ecosystem dynamics
- Protist diversity and phylogeny
- Echinoderm biology and ecology
- Water Quality and Pollution Assessment
- Marine and fisheries research
- Marine and environmental studies
- Plant Diversity and Evolution
- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Cephalopods and Marine Biology
- Coastal and Marine Management
- Botany, Ecology, and Taxonomy Studies
- Aquatic Invertebrate Ecology and Behavior
- Paleontology and Stratigraphy of Fossils
- Fern and Epiphyte Biology
Universidade Estadual Paulista (Unesp)
2015-2025
Faculdade de Medicina de São José do Rio Preto
2013-2021
Instituto de Botânica
1993-2016
National Biodiversity Institute
2015
Abstract An updated synthesis of cyanobacteria and algae information is presented for Brazil aiming to refine the data gathered date evaluate progress biodiversity knowledge about these organisms in country since publication Catálogo de Plantas e Fungos do Brasil. The results 2015 showed an increase 1,250 species (35.7%) when compared 2010, reaching a total 4,747 species. most diverse classes number were Bacillariophyceae, Conjugatophyceae, Florideophyceae, Cyanophyceae, Dinophyceae...
Recent molecular and morphological data necessitate a major taxonomic revision of the Batrachospermales, an order red algae, distributed in freshwater habitats throughout world. This article is synthesis available information with some targeted additional sequence data, resulting few relatively conservative changes to begin process creating natural taxonomy for Batrachospermales. To increase content our categories, particular reduce paraphyly, we describe one new genus (Kumanoa) section...
In Brazil, Hypnea musciformis is the main raw material for carrageenan production and knowledge of nitrogen phosphorus metabolism in algae critical success cultivation because these elements can limit seaweed productivity. Thus, objective this study was to evaluate effects nitrate (zero 100 μM) plus phosphate 25 availabilities on growth, contents photosynthetic pigments (phycobiliproteins chlorophyll a) proteins, photosynthesis respiration brown (BR) light green (LG) strains H. musciformis....
SUMMARY Sixty‐five accessions of the species‐rich freshwater red algal order Batrachospermales were characterized through DNA sequencing two regions: mitochondrial cox1 gene (664 bp), which is proposed as barcode for algae, and UPA (universal plastid amplicon) marker (370 has been recently identified a universally amplifying region genome. upgma phenograms both markers consistent in their species‐level relationships, although levels sequence divergence very different. Intraspecific variation...
To resolve the paraphyly of Batrachospermum, sections genus have been methodically investigated using DNA sequence data and morphology; this has resulted in raising many to status. Phylogenetic analyses combined rbcL COI-5P showed Batrachospermum section Macrospora be a well-supported clade. We propose Montagnia gen. nov. is distinguished from other or genera Batrachospermales by following characters: plants irregularly branched; carpogonial branches long straight well differentiated...
Species belonging to the newly established genus Kumanoa were sampled from locations worldwide. DNA sequence data rbcL gene, cox1 barcode region, and universal plastid amplicon (UPA) collected. The new for combined with extensive batrachospermalean available in GenBank. Single gene results showed be a well-supported clade, there was high statistical support many of terminal nodes. However, this alone, very little any internal Analysis concatenated set (rbcL, cox1, UPA) provided higher across...
Three procedures (line transect, point intercept and quadrat) for estimating abundance of macroscopic components periphyton (macroalgae bryophytes) were compared in two bedrock streams from southeastern Brazil on the basis frequency percent cover. In addition, quadrat sizes (25 50 cm) tested best size. Samplings all made within a 10 m length stream reach. Differences by means analysis variance, ANOVA - one way, Student's t test Chi-square test, whereas associations among them evaluated...
The generic and subgeneric classification of the family Batrachospermaceae (Rhodophyta) has long been recognized as ambiguous often inconsistent. One prime features used to delineate sections Batrachospermum, trichogyne shape, is variable even within given species. However, characters associated with carposporophyte carpogonial branch, well symmetry, are practical consistent taxonomic criteria. These have redefine sectional delineation in Batrachospermum. Based on phylogenetic reasoning...
Twenty-five specimens of the freshwater red alga Compsopogon were collected from locations in North America, South Europe, Asia, Australasia and Oceania, an aquarium, with goal determining genetic diversity among ascertaining number phylogenetic species. Specimens morphologically identified as having either 'caeruleus' morphology, regular polyhedral cortical cells, or 'leptoclados' irregular cells rhizoidal outgrowths. The morphology has been used by some researchers to distinguish genus...
:Collections of Batrachospermales from 13 stream sites in North America (Canada and United States), Europe (Spain) Asia (China) were examined. Phylogenetic analyses sequences data the plastid-encoded ribulose 1,5-bisphosphate carboxylase/oxygenase large subunit gene (rbcL) mitochondrial-encoded cytochrome oxidase 1 barcode region (COI-5P), along with morphological studies, suggested that these collections represent new taxa. Three species a proposed genus Volatus are described: V. carrionii...
:This study evaluated the species level taxonomy and phylogenetic relationships among of section Setacea genus Batrachospermum. Molecular data (sequences plastid-encoded RuBisCO large subunit gene, rbcL; barcode region mitochondrial gene that encodes cytochrome c oxidase 1, cox1) were generated morphological characters described for 15 populations from Brazil, Japan Spain. The analyses rbcL sequences revealed forms a well-supported clade, which was positioned close but clearly separated some...
SUMMARY Responses of net photosynthetic rates to temperature, irradiance, pH/inorganic carbon and diurnal rhythm were analyzed in 15 populations eight freshwater red algal species culture natural conditions. Photosynthetic determined by oxygen concentration using the light dark bottles technique. Parameters derived from photosynthesis‐irradiance curves indicated adaptation low irradiance for all algae tested, confirming that they tend occur under regimes. Some degree photoinhibition (β =...
SUMMARY The responses of relative growth rate (% day‐1) and pigment content (chlorophyll a, phycocyanin phycoerythrin) to temperature, irradiance photoperiod were analyzed in culture seven freshwater red algae: Audouinella hermannii (Roth) Duby, pygmaea (Kutzing) Weber-van Bosse, Batrachospermum ambiguum Montagne, delicatulum (Skuja) Necchi et Entwisle, ‘Chantransia’ stages B. macrosporum Montagne Compsopogon coeruleus (C. Agardh) Montagne. Experimental conditions included temperatures 10,...
Phylogeographic trends in Batrachospermum macrosporum Mont. were investigated using the mitochondrial intergenic spacer between cytochrome oxidase subunit 2 and 3 genes ( cox 2‐3). A total of 11 stream segments sampled with seven coastal plain North America four tropical areas South America. Fifteen thalli from streams, 14 two eight streams. There 16 haplotypes detected 149 individuals. Of locations America, all 334 base pairs (bp) length, those five 344 bp, three 348 bp. Two individual...
In recent years, sections of the paraphyletic genus Batrachospermum have been investigated using DNA sequence data, as well morphology and some raised to genera in order resolve this paraphylly. The species section Virescentia form a well-supported clade we propose raising stat. nov. addition, re-evaluated characters used circumscribe by reexamination type specimens new collections historically important areas. Of eleven previously accepted species, recognize five is proposed follows: V....
Since the first phylogenetic study of order Batrachospermales, Batrachospermum was shown to be paraphyletic. Subsequently, sections genus have been methodically investigated using DNA sequences and morphology in propose new genera delineate species. section Turfosa is last with multiple species yet examined. New sequence data specimens from Europe United States were combined sparse already available. Phylogenetic analyses rbcL COI-5P showed this a well-supported clade, distinct its segregate...