A5036039832- Coastal wetland ecosystem dynamics
- Marine and coastal plant biology
- Growth and nutrition in plants
- Coastal and Marine Management
- Aeolian processes and effects
- Botanical Research and Applications
- Marine and fisheries research
- Geography and Environmental Studies
- Aquaculture Nutrition and Growth
- Marine Biology and Ecology Research
- Phytochemicals and Antioxidant Activities
- Ecology and Vegetation Dynamics Studies
- Constructed Wetlands for Wastewater Treatment
- Phytochemical Studies and Bioactivities
- Marine Bivalve and Aquaculture Studies
- Innovations in Aquaponics and Hydroponics Systems
- Environmental and biological studies
- Soil Management and Crop Yield
- Fern and Epiphyte Biology
- Mycorrhizal Fungi and Plant Interactions
- Marine Sponges and Natural Products
- Geology and Paleoclimatology Research
- Plant tissue culture and regeneration
- Botany and Plant Ecology Studies
- Fish biology, ecology, and behavior
Universidade Federal do Rio Grande
2015-2024
University of Rio Grande and Rio Grande Community College
2006-2024
Millennium Institute of Oceanography
2022
Universidade Federal do Rio Grande do Sul
2009-2015
Universidade Unigranrio
2010
University of East Anglia
1992
Abstract Aim To produce an inventory of south‐west Atlantic saltmarshes (from latitude 31°48′ S to 43°20′ S) using remotely sensed images and field sampling; quantify their total area; describe the biogeographical variation main habitats characterized by dominant vascular plants, in relation major environmental factors; test hypothesis predominance reversal pattern plant distribution (sedges grasses dominate lower, regularly inundated zones, while upper zones are occupied more halophytic...
1 Most studies of salt marsh plant zonation have been at middle to high latitudes the northern hemisphere, in euhaline or periodically hypersaline marshes with regular tides. In this study, we examined an irregularly flooded southern Brazil. Pore water characteristics were compared four vegetation zones across a elevation gradient. Reciprocal transplants between and removal experiments performed examine species interactions low mid marshes. 2 There was no distinctive gradient physical stress...
Salicornia L. (Chenopodiaceae) is a genus of annual, apparently leafless halophytic herbs that have articulated, succulent stems. A combination inbreeding, which allows the development locally differentiated populations, and considerable phenotypic plasticity has created great taxonomic complexity. Taxonomic difficulties been compounded by very reduced morphology inadequacy dried material in representing growth form. Although numerous species aggregates, microspecies described over last 250...
Coastal vegetation plays an important role for climate change mitigation. Compared with terrestrial ecosystems, coastal shows higher rates of atmospheric CO2 uptake and a more efficient retention carbon (C) in sediments. Salt marshes present the highest values as C binders, although global estimation these is still pending due to regional gaps records predominantly from southern hemisphere. There are no clear patterns or dominant processes enough evidence account observed variability,...
In 2014, a DNA-based phylogenetic study confirming the paraphyly of grass subtribe Sporobolinae proposed creation large monophyletic genus Sporobolus, including (among others) species previously included in genera Spartina, Calamovilfa, and Sporobolus. Spartina have contributed substantially (and continue contributing) to our knowledge multiple disciplines, ecology, evolutionary biology, molecular biogeography, experimental biological invasions, environmental management, restoration history,...
The effect of the glow discharge cold plasma pretreatment (CPT) was investigated on ultrasound-assisted extraction (UAE) phenolic compounds from sea asparagus Salicornia neei. extract applied in dry fermented sausage (Italian salami). Thermal methods demand a long processing time, are highly energy-consuming and cause irreversible nutrient losses. It found that CPT (discharge power 14 W for 5 min) prior to UAE increased antioxidant activity by 22% 19% measured DPPH ABTS assays, respectively....
Small succulent halophytic shrubs of the genera Salicornia and Sarcocornia (Salicornioideae, Amaranthaceae) are commonly named sea asparagus consumed worldwide as green salad in gourmet food, conserves, beverages. Their shoots rich bioactive compounds plants show high yields a wide range salinities, but little is known about how salt cultivation conditions affect their chemical composition. Two genotypes (BTH1 BTH2) Brazilian neei Lag. were evaluated for tolerance changes shoot...
In several countries halophytes are commercially cultivated in low saline or even irrigated with seawater, as well aquaculture effluent, like a sea asparagus Sarcocornia ambigua, that show biotechnological potential for bioactive compounds production. However, their recovery from matrix is sometimes inefficient because the lignocellulosic materials difficult solvent action when drastic conditions not applied. The ultrasound-assisted extraction (UAE) was optimized by central composite...
Sarcocornia ambigua (Michx.) M.A. Alonso & M.B. Crespo is the most widely distributed species of perennial genus glasswort in South America, and it shows great biotechnological potential as a salt-water irrigated crop. Qualitative quantitative compositions fatty acids were determined seeds S. that cultivated southern Brazil. Hexane extraction seed oil from yielded 13% total lipids. The GC-FID (Gas Chromatography Flame Ionization Detector) analysis hexane extracts showed five prominent...
Sarcocornia ambigua is a perennial glasswort, native of South America and potential new seed-oil crop forage for direct irrigation with salt water. Small seeds develop inside fertile segments its cylindrical leafless shoots and, at the harvest, are typically mixed remnant cellulose material difficult to separate. This work evaluated different extraction methods composition total esterified fatty acids in meal ground S. ambigua, seeking an alternative primary matter larger yield lipids. The...
ABSTRACT The effects of natural UV‐B radiation on growth, photo‐synthetic and photoprotective pigment composition different Salicornia species were analyzed in salt marshes at three sites along the Americas (Puerto Rico, southern Brazil Patagonia, Argentina). Plants exposed to levels for 1–2 years situ as well outdoor garden exclusion experiments. Different obtained by covering plants with opaque (blocked 93–100% ambient UV‐B) attenuating (near‐ambient) filters (reduced 20–25% UV‐B)....
and Cesar Serra Bonifacio Costa Instituto de Oceanografia – FURG (Caixa Postal 474, 96201-900 Rio Grande, RS, Brasil) *julianomarangoni@pop.com.br Salt marshes constitute major coastal ecosystems in the intertidal zones temperate regions covered with halophytic plants. In southern Brazil, salt occupy 70 km
Myrsine parvifolia A. DC. (Myrsinoideae, Primulaceae) is a native pioneer tree on the Brazilian coastal plain that occupies diversity of sunny and wet sandy habitats. This study evaluated germination three seed batches this species, collected near its southern limit in South America (Rio Grande, RS, Brazil) during two different years (2008 2009), with or without cold storage. The seeds were incubated for 30 days at four constant temperatures (15 °C, 20 25 °C °C) one thermoperiod (20/30 12...
Commercially available sea asparagus of the genera Salicornia and Sarcocornia have shoots rich in minerals bioactive compounds. However no selection varieties with desirable nutritional shoot properties are available. In present study, three biotypes ambigua (Michx.) M.A.Alonso & M.B.Crespo cultivated saline effluent from a shrimp tank were evaluated for total individual phenolic compounds, l-ascorbic acid, chlorophyll content antioxidant capacity (ABTS assay) fresh vegetative reproductive...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 547:79-89 (2016) - DOI: https://doi.org/10.3354/meps11624 Consumer control of establishment marsh foundation plants in intertidal mudflats Ricardo F. Freitas1,*, Elizabeth C. Schrack2, Qiang He2, Brian R. Silliman2, Eliana B. Furlong3, Annie Telles3, César S. Costa1 1Laboratório de Biotecnologia Halófitas,...