Article
Ecology
Jordi Sardans, Joan Llusia, Roma Ogaya, Helen Vallicrosa, Iolanda Filella, Albert Gargallo-Garriga, Guille Peguero, Leandro Van Langenhove, Lore T. Verryckt, Clement Stahl, Elodie A. Courtois, Laetitia M. Brechet, Akash Tariq, Fanjiang Zeng, Abdulwahed Fahad Alrefaei, Weiqi Wang, Ivan A. Janssens, Josep Penuelas
Summary: The Biogeochemical niche hypothesis examines the relationship between species/genotype elemental composition and their ecological niche. This study analyzed the foliar elemental concentrations and functional-morphological traits of 60 tree species in a French Guiana tropical forest, providing empirical evidence for a relationship between species-specific leaf element composition and functional traits. The study supports the hypothesis of species-specific use of bio-elements driving niche segregation and high levels of alpha-diversity in this tropical forest.
Article
Food Science & Technology
Elodie Jean-Marie, Didier Bereau, Patrick Poucheret, Caroline Guzman, Frederic Boudard, Jean-Charles Robinson
Summary: Guiana cocoa, an endemic variety from French Guiana, showed higher antioxidant activity compared to Forastero and decreased bioactive compounds during fermentation. Despite its similarities to Forastero under certain conditions, Guiana cocoa can be considered as an alternative choice.
Article
Immunology
Melanie Gaillet, Clara Pichard, Johana Restrepo, Anne Lavergne, Lucas Perez, Antoine Enfissi, Philippe Abboud, Yann Lambert, Laurence Ma, Marc Monot, Magalie Demar, Felix Djossou, Veronique Servas, Mathieu Nacher, Audrey Andrieu, Julie Prudhomme, Celine Michaud, Cyril Rousseau, Isabelle Jeanne, Jean-Bernard Duchemin, Loic Epelboin, Dominique Rousset
Summary: Oropouche fever, caused by Oropouche virus, has recently emerged in a remote rainforest village in French Guiana, affecting a significant number of patients with dengue-like symptoms. This highlights a potential new outbreak of the virus in the region.
EMERGING INFECTIOUS DISEASES
(2021)
Article
Ecology
Rens W. Vaessen, Klaske van Wijngaarden, Laura Boeschoten, Ronja Knippers, Livia Durazzo, Loes Verkuil, Marijke van Kuijk
Summary: Seed dispersal is a crucial mechanism for plant conservation, especially in tropical regions where most woody plant species rely on vertebrates to disperse their seeds through fruit consumption. With the aim of facilitating research on seed dispersal and seed predation in the Guianas, a database of fruit and seed traits and vertebrate-fruit interactions for tree and vertebrate species was compiled. The analysis revealed a taxonomic bias towards large-bodied vertebrates in the interaction data, with certain families of plants being overrepresented or underrepresented.
Article
Endocrinology & Metabolism
Samuel Liniere, Mathieu Nacher, Kinan Drak Alsibai, Mayka Mergeayfabre, Nezha Hafsi, Aurelie Charpin, Caroline Misslin-Tritsch, Jean-Francois Carod, Jean Markens Aurelus, Bertrand De Toffol, Andre Ntoutoum, John Bukasa Kakamba, Magalie Demar, Jeannie Helene-Pelage, Antoine Adenis, Nadia Sabbah
Summary: The social parameters of an individual impact the incidence of cardiovascular diseases. French Guiana, an overseas French territory with a lower standard of living than France, has a prevalence of diabetes mellitus that is twice that of mainland France. Precariousness is a risk factor for retinal complications in diabetes patients in French Guiana, but the universal healthcare system doesn't completely alleviate health inequalities in diabetic complications.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Environmental Sciences
Daniel Plekhov, Parker VanValkenburgh, Paul Abrams, Amanda Cutler, Justin Han, Alexis Jair Reategui Diaz, Bryn Sullivan, Steven Wernke
Summary: This study analyzes remotely sensed data to evaluate land-use history in the Peruvian Amazonas department, finding a relationship between ancient terracing areas and modern patterns of deforestation, but with ancient land-use patterns not significantly influencing modern land-use trajectories.
Article
Immunology
Veronique Lambert, Antoine Enfissi, Mathilde Lefebvre, Leo Pomar, Sobhi Kedous, Fabien Guimiot, Gabriel Carles, Anne Lavergne, Dominique Rousset, Najeh Hcini
Summary: This study reports a case of vertical transmission of Tonate virus in a pregnant woman from French Guiana. The fetus exhibited severe necrotic and hemorrhagic lesions in the brain and spinal cord. Clinicians should be aware of potential adverse fetal outcomes in pregnant women infected with Tonate virus.
EMERGING INFECTIOUS DISEASES
(2022)
Article
Food Science & Technology
Stephanie Houcke, Dabor Resiere, Guy Roger Lontsingoula, Fabrice Cook, Pierre Lafouasse, Jean Marc Pujo, Magalie Demar, Severine Matheus, Didier Hommel, Hatem Kallel
Summary: Wound infection is frequently observed following snakebite, especially in patients with moderate to severe envenoming. Necrosis, thrombocytopenia, and rhabdomyolysis are independent factors associated with snakebite-associated infection. The main bacteria involved are A. hydrophila and M. morganii.
Article
Environmental Sciences
Yurasi Briceno, Leonardo Sanchez, Fernando Trujillo, Lorenzo von Fersen, Sonsiree Ramirez
Summary: The Guiana dolphin in the Lake Maracaibo system has been a target of local communities for decades, despite being recognized as illegal by most fishermen. This exploitation has led to a high incidence of capture and consumption, highlighting the urgent need for government intervention to protect the vulnerable population.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Immunology
Fredegonde About, Theo Pastre, Mathilde Boutrou, Alex Yahiaoui Martinez, Alessia Melzani, Sandrine Peugny, Celine Michaud, Sami Zouaoui, Thierry Carage, Vincent Sainte Rose, Magalie Demar, Jean-Philippe Lavigne, Felix Djossou, David O'Callaghan, Loic Epelboin, Anne Keriel
Summary: Two cases of brucellosis were reported in male patients from Brazil who were working as clandestine goldminers in French Guiana. The bacterial isolates represented a potential new species of Brucella. Medical practitioners in this region should be aware of these pathogens and the potential for human infection.
EMERGING INFECTIOUS DISEASES
(2023)
Article
Immunology
Carlo Fischer, Dominique Pontier, Ondine Filippi-Codaccioni, Jean-Batiste Pons, Ignacio Postigo-Hidalgo, Jeanne Duhayer, Sebastian Brunink, Jan Felix Drexler
Summary: The study revealed a new strain of the encephalitogenic VEEV species Tonate virus (TONV), isolated from bats in French Guiana, suggesting bats may play a role in the spread of TONV in Latin America. Despite the importance of understanding transmission cycles for control strategies, knowledge about Venezuelan equine encephalitis complex alphaviruses (VEEVs) remains limited.
EMERGING INFECTIOUS DISEASES
(2021)
Article
Green & Sustainable Science & Technology
Malluri Gonas, Nilton B. Rojas-Briceno, Cristian Culqui-Gaslac, Marielita Arce-Inga, Gladys Marlo, Eli Pariente-Mondragon, Manuel Oliva-Cruz
Summary: This study estimated the carbon sequestration in 15 agroforestry systems in the Amazonas region of Peru and found that the biomass and carbon content of cocoa trees and Cordia species increased with age, while fruit species like Mussa and Persea decreased. The total carbon stock in the aboveground components was highest in adult cocoa systems. The CO2 sequestration for young cocoa systems was 490.28 Mg ha(-1), while middle-aged and adult cocoa systems sequestered more than 500 Mg ha(-1) of CO2.
Article
Multidisciplinary Sciences
Malluri Gonas, Karol B. Rubio, Nilton B. Rojas Briceno, Eli Pariente-Mondragon, Manuel Oliva-Cruz
Summary: This study aims to describe the diversity of tree species in cocoa agroforestry systems in Peru based on plantation age. The results show a moderately low level of tree species diversity, with a total of 17 reported species, of which the most abundant is a species from the Musa genus. The dissimilarity indices indicate a moderate similarity between different age ranges, and the Importance Value Index (IVI) suggests that the most important species are used for food and timber, mostly intentionally introduced by farmers. The study highlights the impact of farmers' interest in obtaining economic benefits on the diversification of cocoa agroforestry systems.
Article
Infectious Diseases
Estelle Menu, Emilie Mosnier, Arnaud Cotrel, Loic Favennec, Romy Razakandrainibe, Stephane Valot, Denis Blanchet, Frederic Dalle, Damien Costa, Melanie Gaillet, Magalie Demar, Franck de Laval
Summary: Cryptosporidiosis outbreaks were poorly documented in South America. In a remote forest area along the Surinam-French Guiana border, 51 cases of cryptosporidiosis were reported in 2018, primarily affecting children and soldiers. The main source of infection was found to be contaminated tap water. Implementing alternative water supply or treatment is crucial for the affected population.
PLOS NEGLECTED TROPICAL DISEASES
(2022)
Article
Environmental Sciences
Hector Barrios-Garrido, Kareen De Turris-Morales, Ninive Edilia Espinoza-Rodriguez
Summary: The Guiana dolphin's home range spans across Central and South American countries, with multiple population centers facing different threats. The Maracaibo Lake Management Unit is an isolated and unique population core, with at least two distinguishable population centers exhibiting differences in biological aspects. The dolphins are used for various purposes by local communities, including consumption, religious beliefs, and tourism, with intentional take each year for various purposes. Additional research is needed to understand the impact of threats on the Guiana dolphin population in the Maracaibo Lake System.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Plant Sciences
Bruno Henrique dos Santos Ferreira, Angelica Guerra, Maxwell da Rosa Oliveira, Leticia Koutchin Reis, Andre Aptroot, Danilo Bandini Ribeiro, Leticia Couto Garcia
Summary: The research focused on the impact of fire on the fruiting period of Calliandra parviflora, finding that burnt fruits had greater mass but lower seed germination rates compared to unburnt fruits. However, the fire did not affect the vegetative regeneration ability of the species.
PLANT SPECIES BIOLOGY
(2021)
Article
Mycology
Andre Aptroot, Maria Fernanda Souza, Adriano Afonso Spielmann
Summary: Five new species of lichens from the Serra de Maracaju in Mato Grosso do Sul, Brazil, were described in this study, with a further 123 species reported as new to the area, including ten first records for Brazil and 41 first records for the state.
CRYPTOGAMIE MYCOLOGIE
(2021)
Article
Plant Sciences
Isaias Oliveira Junior, Andre Aptroot, Marcela Eugenia da Silva Caceres
Summary: This study describes seven new species of pyrenocarpous lichens from Monte Pascoal in Bahia, Brazil, as well as 353 other species. 12 species are reported for the first time in Brazil, and 192 species are first records for Bahia. The findings suggest that there may be many more species in the area yet to be discovered.
Article
Mycology
Andre Aptroot, Lidiane Alves dos Santos, Marcela Eugenia da Silva Caceres
Summary: Saxicolous lichens in the southern reaches of the Caatinga biome in Sergipe, NE Brazil were investigated for the first time, identifying 20 species with three new species described. The study also observed several substrate shifts and ecological adaptations, showcasing the diversity and unique characteristics of these lichens in the region.
CRYPTOGAMIE MYCOLOGIE
(2021)
Article
Mycology
Andre Aptroot, Maria Fernanda Souza
Summary: This passage describes three new species of lichens discovered in the Chapada dos Guimaraes in Mato Grosso, Brazil, as well as 191 additional species reported as new to the state.
CRYPTOGAMIE MYCOLOGIE
(2021)
Article
Mycology
Andre Aptroot, Maria Fernanda Souza
Summary: Four new crustose lichens are described from the coastal area in Parana, Brazil, along with a list of 111 species newly recorded from the state, including nine species first recorded in Brazil. The significance of lichexanthone is discussed in the study.
CRYPTOGAMIE MYCOLOGIE
(2021)
Article
Plant Sciences
Maria Fernanda de Souza, Andre Aptroot, Adriano Afonso Spielmann
Summary: The species of Heterodermia in Brazil have been revised, reporting additional species and new species. A key to all accepted species is provided. The split genera proposed recently are not accepted and an additional group is informally recognized.
Review
Mycology
Nalin N. Wijayawardene, Alan J. L. Phillips, Diana Santos Pereira, Dong-Qin Dai, Andre Aptroot, Josiane S. Monteiro, Irina S. Druzhinina, Feng Cai, Xinlei Fan, Laura Selbmann, Claudia Coleine, Rafael F. Castaneda-Ruiz, Martin Kukwa, Adam Flakus, Patricia Oliveira Fiuza, Paul M. Kirk, Kunhiraman C. Rajesh Kumar, Ilesha S. Ieperuma Arachchi, Nakarin Suwannarach, Li-Zhou Tang, Teun Boekhout, Chen Shuhui Tan, R. P. Prabath K. Jayasinghe, Marco Thines
Summary: Asexually reproducing fungi play significant roles in ecosystems and have implications for plant and animal health, food production, biotechnology, and medicine. However, the diversity and extent of asexually reproducing taxa are not well-known. Recent reports suggest that there may be more asexual fungi than sexually-reproducing ones. Evaluating the diversity of different types of fungi, such as speciose and pleomorphic taxa, as well as those from less studied life modes and biodiversity-rich areas, is necessary to obtain more reliable estimates.
Article
Plant Sciences
Shirley Cunha Feuerstein, Andre Aptroot, Rosa Mara Borges da Silveira, Robert Luecking, Marcela Eugenia da Silva Caceres
Summary: This study revises the Acanthothecis genus in Brazil and provides an updated world key to the known species. Ten new species and three validated species are described, and a new combination species is proposed.
Article
Plant Sciences
Zacarias Lepista, Andre Aptroot
Summary: Five new species of Graphis genus have been reported in Europe, identified from the Mata Nacional do Bucaco in Portugal. This region is known for its rich and diverse distribution of graphidoid Graphidaceae. The identified species include Graphis dendrogramma, G. duplicata, G. gonimica, G. librata, and G. pyrrhocheiloides. An updated key of Graphis species in Europe is also provided, and all newly reported species are named after tropical species.
Article
Biochemistry & Molecular Biology
Amanda Barreto Xavier-Leite, Marcela Eugenia da Silva Caceres, Andre Aptroot, Bibiana Moncada, Robert Lucking, Bruno Tomio Goto
Summary: This study presents a broad molecular-phylogenetic revision of the lichenized family Gomphillaceae, based on newly generated sequences. The study identified new genus-level clades and found that the characteristic asexual anamorph called hypho-phores is diagnostic for many of the recognized clades.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Microbiology
Andre Aptroot
Summary: Lichens were studied in a small area along the Roosevelt River in Amazonas, Brazil. This study identified 25 species that were previously unreported in Brazil, and an additional 190 species that were previously unknown in the Amazonas state. The study also described 24 new species, including Allographa lineatipruinosa, Allographa variopruinata, Arthonia xanthopycnidiata, and others.
MICROBIOLOGY RESEARCH
(2023)
Article
Mycology
N. N. Wijayawardene, K. D. Hyde, D. Q. Dai, M. Sanchez-Garcia, B. T. Goto, R. K. Saxena, M. Erdogdu, F. Selcuk, K. C. Rajeshkumar, A. Aptroot, J. Blaszkowski, N. Boonyuen, G. A. da Silva, F. A. de Souza, W. Dong, D. Ertz, D. Haelewaters, E. B. G. Jones, S. C. Karunarathna, P. M. Kirk, M. Kukwa, J. Kumla, D. Leontyev, H. T. Lumbsch, S. S. N. Maharachchikumbura, F. Marguno, P. Martinez-Rodriguez, A. Mesic, J. S. Monteiro, F. Oehl, J. Pawlowska, D. Pem, W. P. Pfliegler, A. J. L. Phillips, A. Posta, M. Q. He, J. X. Li, M. Raza, O. P. Sruthi, S. Suetrong, N. Suwannarach, L. Tedersoo, V Thiyagaraja, S. Tibpromma, Z. Tkalcec, Y. S. Tokarev, D. N. Wanasinghe, D. S. A. Wijesundara, S. D. M. K. Wimalaseana, H. Madrid, G. Q. Zhang, Y. Gao, I Sanchez-Castro, L. Z. Tang, M. Stadler, A. Yurkov, M. Thines
Summary: This paper presents an updated classification of the Kingdom Fungi, including fungus-like taxa and fossil fungi. It provides detailed notes for newly introduced taxa and changes made since the previous outline. The paper discusses the latest taxonomic changes in Basidiomycota and broadly explores the classification of Mycosphaerellales. It also discusses problematic genera in Glomeromycota based on phylogenetic analysis.
Article
Mycology
N. N. Wijayawardene, A. J. L. Phillips, S. Tibpromma, D. Q. Dai, L. Selbmann, J. S. Monteiro, A. Aptroot, A. Flakus, K. C. Rajeshkumar, C. Coleine, D. C. Pereira, X. Fan, L. Zhang, S. S. N. Maharachchikumbura, M. F. Souza, M. Kukwa, N. Suwannarach, P. Rodriguez-Flakus, N. Ashtekar, L. Dauner, L. Z. Tang, X. C. Jin, S. C. Karunarathna
Summary: Fungi are essential members of the biosphere, crucial for sustaining ecosystems by maintaining nutrient balance. Despite their abundance in various habitats, many areas remain understudied, highlighting the need for more research to uncover the extent of fungal diversity in these overlooked habitats and biodiversity hotspots.
Article
Environmental Sciences
Achim Edtbauer, Eva Y. Pfannerstill, Ana Paula Pires Florentino, Cybelli G. G. Barbosa, Emilio Rodriguez-Caballero, Nora Zannoni, Rodrigo P. Alves, Stefan Wolff, Anywhere Tsokankunku, Andre Aptroot, Marta de Oliveira Sa, Alessandro C. de Araujo, Matthias Sorgel, Sylvia Mota de Oliveira, Bettina Weber, Jonathan Williams
Summary: The study suggests that cryptogamic organisms such as bryophytes and lichens in tropical forests emit large quantities of sesquiterpenoids and uptake atmospheric oxidation products, playing a significant role in atmospheric chemistry in tropical rainforests.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)