scholarly journals New records of Auriculariales, Hymenochaetales and Polyporales (Fungi: Agaricomycetes) for the Caatinga Biome

Check List ◽  
2013 ◽  
Vol 9 (4) ◽  
pp. 800 ◽  
Author(s):  
Elisandro Ricardo Drechsler-Santos ◽  
Leif Ryvarden ◽  
José Luiz Bezerra ◽  
Tatiana Baptista Gibertoni ◽  
C. A. Salvador-Montoya ◽  
...  
Keyword(s):  
Arid Region ◽  
New Records ◽  
Auricularia Polytricha ◽  
Caatinga Biome ◽  
Semi Arid Region ◽  
Semi Arid

Macrofungi from exclusive Brazilian biome of semi-arid region are poorly known and more efforts are necessary to document the diversity and distribution of this group among all the different ecosystems of the Caatinga. Sixty one exsiccata kept at ALCB, CEPEC, HUVA and IPA herbaria were revised which corresponded to 36 species. Fourteen of these, Auricularia polytricha, Amauroderma partitum, A. sprucei, Dichomitus cavernulosus, Flabellophora parva, Flaviporus hydrophilus, Ganoderma resinaceum, Hexagonia papyracea, Perenniporia aurantiaca, Phellinus shaferi, Polyporus ianthinus, Rigidoporus lineatus, R. ulmarius, and Steccherinum reniforme, are first records for the Caatinga biome.

Two new records of Mucorales from the Brazilian semi-arid region

Mycotaxon ◽  
2011 ◽  
Vol 114 (1) ◽  
pp. 171-177
Author(s):  
André Luiz Cabral M. de A. Santiago ◽  
Leonor Costa Maia
Keyword(s):  
Arid Region ◽  
New Records ◽  
Semi Arid Region ◽  
Semi Arid

Gaya xiquexiquensis (Malvaceae, Malvoideae), a new species from Bahia state, Brazil

Phytotaxa ◽  
2015 ◽  
Vol 207 (2) ◽  
pp. 205
Author(s):  
Catia Takeuchi ◽  
Gerleni Lopes Esteves
Keyword(s):  
New Species ◽  
Arid Region ◽  
Conservation Status ◽  
The State ◽  
Morphological Description ◽  
Ecological Data ◽  
Caatinga Biome ◽  
Semi Arid Region ◽  
A New Species ◽  
Semi Arid

Gaya xiquexiquensis is a new species from the state of Bahia, Brazil. This species is known only from the municipality of Xique-Xique, growing in the Caatinga biome of the Brazilian semi-arid region. Gaya xiquexiquensis is morphologically similar to Gaya aurea A. St.-Hil. We here in present its morphological description, illustrations, as well as ecological data and conservation status.

scholarly journals New Records of Pteridophytes in the Semi-Arid Region of Brazil

2001 ◽  
Vol 91 (4) ◽  
pp. 227-229 ◽  
Author(s):  
Sandra T. Ambrósio ◽  
Natoniel F. De Melo
Keyword(s):  
Arid Region ◽  
New Records ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Agro-economic performance of the association of beet with green cowpea in different amounts of hairy woodrose

2018 ◽  
Vol 22 (3) ◽  
pp. 194-199 ◽  
Author(s):  
Daciano M. de Sousa ◽  
Francisco Bezerra Neto ◽  
Jailma S. S. de Lima ◽  
Grace K. L. de Lima ◽  
Aridênia P. Chaves ◽  
...  
Keyword(s):  
Economic Performance ◽  
Green Manure ◽  
Arid Region ◽  
Block Design ◽  
Arid Conditions ◽  
Randomized Complete Block Design ◽  
Caatinga Biome ◽  
Semi Arid Region ◽  
Brazilian Northeast ◽  
Semi Arid

ABSTRACT Intercropping systems of beet and green cowpea are beginning to be implemented in the northeastern semi-arid region in Brazil. The great challenge is to know if there is agro-economic efficiency in these systems when fertilized with organic matter produced by spontaneous species of the Caatinga biome. Thus, the objective of this research was to evaluate the effect of green manuring using different amounts of hairy woodrose (Merremia aegyptia) in the association of beet with green cowpea under the semi-arid conditions. The experiment was carried out at the Rafael Fernandes Experimental Farm, rural area of Mossoró, RN, Brazil, in the period of September-December 2015, in a randomized complete block design with four treatments and five replicates. The treatments consisted of hairy woodrose amounts incorporated into the soil (10, 25, 40, 55 t ha-1 on a dry basis). The cultivars of beet and green cowpea planted were ‘Early Wonder’ and ‘BRS Itaim’, recommended for the semi-arid conditions of the Brazilian Northeast. The best agro-economic performance for intercropping system of beet and green cowpea was obtained with 55 t ha-1 of hairy woodrose incorporated in the soil. The use of the hairy woodrose species as green manure is agronomically viable in intercropped systems with beet and green cowpea.

scholarly journals Vascular flora of semi-arid region, São José do Piauí, state of Piauí, Brazil

Check List ◽  
2009 ◽  
Vol 6 (1) ◽  
pp. 039 ◽  
Author(s):  
Maura Rejane de Araújo Mendes ◽  
Antonio Alberto Jorge Farias Castro
Keyword(s):  
New Species ◽  
Sea Level ◽  
Arid Region ◽  
Northeastern Brazil ◽  
Local Conditions ◽  
Caatinga Biome ◽  
Semi Arid Region ◽  
A New Species ◽  
Semi Arid

The Caatinga biome is located in the semi-arid region of northeastern Brazil and covers about 37 % of Piauí state. The main objective of the present study was a characterization of the Caatinga flora of the farm of Morro do Baixio, in state of Piauí, Brazil (06°51’13” S; 41°28’15” W, at 400 to 540 m above sea level) in view of the fact that very few such surveys were conducted in the state. The flora of the farm was surveyed monthly, during a year, to gather herbs, epiphytes, parasites, sub shrubs, shrubs and trees. We encountered 136 species belonging to 46 families, including a new species of Bauhinia. The richest families were Caesalpiniaceae (15 spp.), Fabaceae (11 spp.), Bignoniaceae and Mimosaceae (both with nine spp.). We observed a higher frequency of typical species from sedimentary Caatinga. However, local conditions favor the appearance of species that occur in Carrasco and Cerrado.

scholarly journals Avaliação da aplicação de modelos de desprendimento em bacia experimental do semiárido brasileiro

2021 ◽  
Vol 14 (1) ◽  
pp. 396
Author(s):  
Paulo Roberto De Souza Silveira ◽  
George Leite Mamede
Keyword(s):  
Arid Region ◽  
Daily Precipitation ◽  
Drainage Network ◽  
Catchment Basin ◽  
Caatinga Biome ◽  
Slope Sediment ◽  
Main Factors ◽  
Semi Arid Region ◽  
Experimental Basin ◽  
Semi Arid

Granulometria é um dos principais fatores que afetam a dinâmica de sedimentos em bacias hidrográficas, desde seu desprendimento do solo matriz até o transporte ou deposição pela rede e reservatório. Objetivou-se com esse trabalho analisar o comportamento granulométrico dos sedimentos em uma bacia do semiárido brasileiro, no bioma Caatinga e analisar a eficiência da aplicação de modelos de estimativa do padrão granulométrico do sedimentos desprendido das encostas. O estudo foi realizado na bacia hidrográfica do Pentecoste, situada no semiárido do Ceará. A parte experimental da pesquisa foi realizada na Bacia Experimental do Vale do Curú (BEVC) com coleta de dados pluviométricos e hidrossedimentológicos, amostras de solo da bacia de captação, precipitação diária e de escoamentos superficiais, durante a quadra chuvosa entre os anos de 2015 e 2017. Modelos de desprendimento de sedimentos divulgados na literatura foram testados e aplicados para a área de estudo. Os resultados mostraram que o modelo de desprendimento de sedimento da encosta proposto por Foster et al. (1981) apresentou os melhores resultados quando comparado aos demais, com coeficiente de Nash e Sutcliff (NS) de 0,99, em ambiente de cobertura vegetal mista. Evaluation of the application of detachment models in the experimental basin of the Brazilian semi-arid region A B S T R A C TSize grain is one of the main factors that affect sediment dynamics in watersheds, from its detachment from the soil to the transport or deposition through the drainage network and reservoir. The objective of this research was to analyze the granulometric behavior of the sediments in a Brazilian semi-arid basin in the Caatinga biome and to analyze the efficiency of the application of models for the estimation of the granulometric pattern of sediments detached on slopes. The study was carried out in the Pentecost basin, located in the semi-arid region of Ceará. The experimental part of the research was conducted in the Curú Valley Experimental Basin (BEVC) with rainfall and hydrosedimentological data collection, soil samples from the catchment basin, daily precipitation and surface runoff during the rainy season between 2015 and 2017. Models of sediment release disclosed in the literature were tested and applied to the study area. The results showed that the slope sediment detachment model proposed by Foster et al. (1981) presented the best results when compared to the others, with Nash and Sutcliff coefficient (NS) of 0.99, under mixed vegetation cover.Keywords: size grain, Foster model, Experimental Basin of the Curú Valley, Caatinga biome.

The Molecular Characterization and Biological Assessment of the Leaves Extracts of Loofah Reveal their Nutraceutical Potential

2020 ◽  
Vol 11 ◽  
Author(s):  
Takoua Ben Hlel ◽  
Feten Belhadj ◽  
Fatih Gül ◽  
Muhammed Altun ◽  
Ayşe Şahin Yağlıoğlu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Phenolic Compounds ◽  
Hela Cell ◽  
Arid Region ◽  
Biological Properties ◽  
Biological Assessment ◽  
Omega 3 ◽  
Hela Cell Lines ◽  
Semi Arid Region ◽  
Semi Arid

Background:: Luffa cylindrica is a plant that is widely distributed in Africa and Asia and it can be grown in regions with tropical or subtropical climates. Few patents dealt with Loofah biological properties, including some functional foods formulated from its leaves. Objective:: This study aimed to structurally and functionally characterize the bioactive compounds of L. cylindrica leaves grown in two different environments. Methods:: The extracts of L. cylindrica leaves collected from two Tunisian locations: Essouasi (LE), a semi-arid region and Medenine (LM) an arid region, were investigated for their phenolic compounds and fatty acids using HPLC/TOF-MS and GCMS techniques respectively. Furthermore, the antioxidant capacity was evaluated with DPPH, Chelating effect, Hydroxyl radical and Superoxide anion scavenging activities while the anticancer activity against HeLa cell lines was assessed using xCELLigence real time cell analyzer and lactate dehydrogenase cytotoxicity assay. Results:: The antiproliferative capacity of both extracts was time and dose-dependent with LE presenting the lowest HeLa cell index (CI = 0.035 ± 0.018, 250 μg/ml). LE also showed the best cytotoxic capacity (56.49 ± 0.8%) and antioxidant potential (IC50 = 54.41 ± 1.12 μg/ml for DPPH and 12.12 ± 0.07 μg/ml for chelating effet). 14 phenolic compounds were detected in LE with ferulic acid being the major compound (5128.5 ± 4.09 μg Phenols/g) while LM had only 6 phenolics. GCMS analysis showed the presence of omega-3 fatty acids in LE. Conclusions:: Our findings suggest that L. cylindrica leaves, especially when collected from semi-arid regions, are promising for formulating nutraceuticals of interest.

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