Article
Environmental Sciences
Xiaowei Cheng, Weibin Pan, Yuanyuan Hu, Yulin Zou, Xiaojia Huang
Summary: A co-culture system of Eichhornia crassipes and R. raciborskii was established to study the inhibitory effect of E. crassipes on R. raciborskii blooms. It was found that E. crassipes has the potential to control R. raciborskii blooms and has an inhibitory allelopathy effect on R. raciborskii.
Article
Biology
Mariana Alvarez-Noriega, Isabella Marrable, Sam H. C. Noonan, Diego R. Barneche, Juan C. Ortiz
Summary: Increasing seawater temperatures have significant impacts on coral physiology. Studying demographic changes in response to chronic warming can help predict coral community responses to climate change. This study found consistent thermal sensitivity within species, suggesting limited adaptive capacity to future thermal changes. Moreover, species differences in thermal response contradict the expectation that warmer temperatures promote growth. These findings suggest that future increases in temperature will reduce coral growth rates, hamper reef recovery, and potentially alter community composition.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Multidisciplinary Sciences
Nils Radecker, Claudia Pogoreutz, Hagen M. Gegner, Anny Cardenas, Florian Roth, Jeremy Bougoure, Paul Guagliardo, Christian Wild, Mathieu Pernice, Jean-Baptiste Raina, Anders Meibom, Christian R. Voolstra
Summary: The altered nutrient cycling during heat stress is found to be a primary driver of the functional breakdown of coral-algal symbiosis. Energy limitation and altered symbiotic nutrient cycling are key factors in the early heat stress response, directly contributing to the breakdown of the coral-algal symbiosis.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Forestry
Robert Reuter, Olga Ferlian, Mika Tarkka, Nico Eisenhauer, Karin Pritsch, Judy Simon
Summary: The inorganic and organic nitrogen acquisition of temperate tree species is found to be influenced more by the competitive environment and availability of specific nitrogen sources in the soil rather than the type of mycorrhizal association.
Article
Entomology
Lei Nie, Bamisope Steve Bamisile, Yuling Li, Hao Ran, Suhang Wang, Lei Wang, Yijuan Xu
Summary: The invasive species W. auropunctata has shown competitive advantages over resident ants in southern China, especially in terms of food and space resources, potentially leading to the replacement of some native ant species.
Article
Ecology
A. C. C. Barbosa, C. Vinagre, M. V. Kitahara, A. A. V. Flores
Summary: In this study, the distribution and abundance of two sun coral species were investigated in rocky reef habitats along the northern coast of Sao Paulo State, Brazil. The results showed species-specific distribution patterns and suggested that competition, environmental filtering, and neutral processes may influence local species coexistence. The ongoing and invasive spread of sun corals may be attributed to the enemy-release hypothesis and the lack of negative interactions between Tubastraea species. The stochastic nature of small-scale distributions poses a challenge in predicting and controlling sun coral invasion.
MARINE ECOLOGY PROGRESS SERIES
(2023)
Article
Ecology
Thomas D. Glaze, Dirk Erler, Henri M. P. Siljanen
Summary: The study reveals the existence of nitrogen cycling processes such as denitrification, nitrogen fixation, nitrification, and DNRA in tropical scleractinian corals. Limited denitrification activity suggests its limited importance in holobiont nitrogen removal, while relatively greater nitrogen fixation activity confirms corals as net nitrogen importers to reef systems. The research highlights the key role of tropical scleractinian corals in nitrogen cycling.
Article
Agronomy
Sabrina Ongaratto, Edson L. L. Baldin, Thomas E. Hunt, Debora G. Montezano, Emily A. Robinson, Maria C. dos Santos
Summary: The study found that the velvetbean caterpillar had a competitive advantage over the soybean looper, affecting the survival and behavior of the latter. Additional research is recommended to further understand the effects of interactions, especially in field conditions.
PEST MANAGEMENT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Katherine R. Eaton, Abigail S. Clark, Katie Curtis, Mike Favero, Nathaniel Hanna Holloway, Kristen Ewen, Erinn M. Muller
Summary: Outbreaks of infectious diseases are a major cause of coral reef decline worldwide. Black band disease (BBD) is a particularly lethal disease that has been reported on reefs globally. This study developed and tested different therapeutic agents to effectively treat BBD on corals in the US Virgin Islands. The results showed that the CoralCure rope formulations successfully eliminated BBD in 100% of the treated corals, reducing the likelihood of disease occurrence.
Article
Zoology
Francesco Ferretti, Raquel Oliveira, Mariana Rossa, Irene Belardi, Giada Pacini, Sara Mugnai, Niccolo Fattorini, Lorenzo Lazzeri
Summary: This study investigated the feeding habits of wolves on small carnivores and found that there was temporal and spatial overlap between the two, which suggests that the negative impact of wolves on small carnivores is limited.
FRONTIERS IN ZOOLOGY
(2023)
Article
Biodiversity Conservation
Jing Yang, Jiahui Lu, RenRen Wang, Xihua Wang, Shaopeng Li, Guochun Shen
Summary: This study investigated the responses of mean trait values of 11 tree species to reduced light and interspecific competition, showing substantial changes in trait differences, community-weighted means, and functional diversity. Incorporating these trait responses improved the identification of effects of low light and interspecific competition on community structure, revealing that strong abiotic filters could promote trait divergence if trait responses were considered. This emphasizes the importance of incorporating species mean trait value responses in trait-based community ecology for a more accurate and sensitive understanding of ecological mechanisms.
ECOLOGICAL INDICATORS
(2021)
Article
Agriculture, Multidisciplinary
Guizong Zhang, Hao Yang, Weiping Zhang, T. Martijn Bezemer, Wenju Liang, Qi Li, Long Li
Summary: A field experiment was conducted to investigate the effects of intercropping systems on soil biota. It was found that intercropped maize soils had increased complexity and robustness of soil networks, while densities of plant parasitic nematodes and β-glucosidase activity were reduced. Intercropped soybean soils had lower C availability, but showed an increase in saprophytic fungi and plant parasitic nematodes compared to monoculture soils.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Ecology
Gregory F. Grether, Kenichi W. Okamo
Summary: This study establishes an eco-evolutionary model to investigate the coexistence mechanisms of interference competitors. The study finds that coexistence between interference competitors can occur in various ecological scenarios, even at the highest levels of resource overlap. However, coexistence requires co-evolution between species, and reductions in population size and levels of genetic variation may disrupt the coexistence mechanisms.
Article
Multidisciplinary Sciences
Alexandre C. Siqueira, Wolfgang Kiessling, David R. Bellwood
Summary: The study finds that biotic interactions among reef corals have a significant impact on the macroevolutionary patterns of coral diversity. Staghorn corals, in particular, affect the fossil diversity trajectories of other coral groups.
NATURE COMMUNICATIONS
(2022)
Article
Agronomy
Madhuri R. Paul, Dereje T. Demie, Sabine J. Seidel, Thomas F. Doering
Summary: The study aims to understand the early dominance and its potential effects on later growth stages in cereal legume mixtures. Field trials were conducted in conventional and organic sites, including monocultures and mixtures of spring wheat and faba bean. The results showed that spring wheat dominated the mixtures and early dominance favored later growth stages, leading to higher biomass.
Article
Chemistry, Medicinal
Sandra L. Molina, Abel M. Forero, Farja I. Ayala, Monica Puyana, Sven Zea, Leonardo Castellanos, Diego Munoz, Gonzalo Arboleda, Adrian G. Sandoval-Hernandez, Freddy A. Ramos
Article
Biochemistry & Molecular Biology
Leonardo Castellanos, Sandra Judith Naranjo-Gaybor, Abel M. Forero, Gustavo Morales, Erica Georgina Wilson, Freddy A. Ramos, Young Hae Choi
Article
Microbiology
Luz A. Betancur, Abel M. Forero, Diana M. Vinchira-Villarraga, Juan D. Cardenas, Adriana Romero-Otero, Fernanda O. Chagas, Monica T. Pupo, Leonardo Castellanos, Freddy A. Ramos
MICROBIOLOGICAL RESEARCH
(2020)
Article
Biotechnology & Applied Microbiology
Diana Marcela Vinchira-Villarraga, Leonardo Castellanos, Nubia Moreno-Sarmiento, Zulma Rocio Suarez-Moreno, Freddy A. Ramos
Summary: This study evaluated the antifungal activity of marine-derived Firmicutes strains against the tomato phytopathogen Fusarium oxysporum f. sp. lycopersici (FOL), and identified Paenibacillus sp. PNM200 as a potential biocontrol agent. PNM200 colonized the tomato plant root system, increased plant growth, and reduced vascular wilt severity, showing potential as a biological control agent. The results suggest that marine-derived bacteria could be a new source of biological control agents for soil-borne diseases like Fusarium vascular wilt.
BIOLOGICAL CONTROL
(2021)
Article
Agriculture, Multidisciplinary
Gabriel Monzon Daza, Carolina Meneses Macias, Abel M. Forero, Jaime Rodriguez, Marcela Aragon, Carlos Jimenez, Freddy A. Ramos, Leonardo Castellanos
Summary: The leaves of Passiflora ligularis Juss, a byproduct of edible fruit production, were found to contain compounds with enzyme inhibitory activity, including polyphenolic compounds and triterpenoid saponins, through metabolomics analysis. These findings lay the groundwork for exploring potential applications of P. ligularis leaves beyond their traditional use.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Plant Sciences
Fabian Amaya Garcia, Claudio Cirne-Santos, Caroline de Souza Barros, Ana Maria Pinto, Maria Leonisa Sanchez Nunez, Valeria Laneuville Teixeira, Jackson A. L. C. Resende, Freddy A. Ramos, Izabel C. N. P. Paixao, Leonardo Castellanos
Summary: The study investigates the antiviral activity of dolabellane diterpenes derived from brown algae and soft corals against Zika and Chikungunya viruses. A total of 26 compounds were tested for their bioactivity, with the addition of oxygen-containing functional groups enhancing their effectiveness. Compound 9 exhibited promising antiviral activity against ZIKV, with an EC50 of 0.92 +/- 0.08 mu M and SI = 820.
JOURNAL OF NATURAL PRODUCTS
(2021)
Article
Biochemical Research Methods
Ricardo Moreira Borges, Fernanda das Neves Costa, Fernanda O. Chagas, Andrew Magno Teixeira, Jaewon Yoon, Marcio Barczyszyn Weiss, Camila Manoel Crnkovic, Alan Cesar Pilon, Bruno C. Garrido, Luz Adriana Betancur, Abel M. Forero, Leonardo Castellanos, Freddy A. Ramos, Monica T. Pupo, Stefan Kuhn
Summary: DAFdiscovery is a pipeline designed to accelerate the annotation and discovery of bioactive compounds by combining mass spectrometry, nuclear magnetic resonance, and bioactivity data and using statistical total correlation spectroscopy and statistical heterospectroscopy calculations. It provides a simple-to-use method for analyzing data from different sources in various situations.
PHYTOCHEMICAL ANALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Claudia Andrea Bautista, Carlos Andres Puentes, Claudia Marcela Vargas-Pelaez, Marison Santos-Acevedo, Freddy A. Ramos, Javier Gomez-Leon, Leonardo Castellanos
Summary: This systematic review examines the scientific articles published on marine natural products (MNPs) obtained from Colombian seas. The study finds that the research on MNPs of Colombian origin has increased over time, with a focus on samples collected from the Caribbean Sea. The review identifies opportunities to explore Pacific Ocean organisms, address misrepresented taxa, promote collaboration among research groups, and involve the productive sector in MNPs research.
REVISTA COLOMBIANA DE QUIMICA
(2022)
Article
Biochemistry & Molecular Biology
Purin Candra Purnama, Leonardo Castellanos Hernandez, Robert Verpoorte
Summary: The presence and significance of endophytes in plant biosynthetic pathways is still unclear. Fungicide treatments have varying effects on plants, such as decreasing taxol content in Taxus and causing the disappearance of ergot alkaloids in Ipomoea asarifolia. Fungicides also affect the primary and secondary metabolism of plants, as observed in Narcissus pseudonarcissus cv. Carlton and Jacobaea.
Article
Ecology
Vanessa Urrea-Victoria, Vanessa Geraldes, Ernani Pinto, Leonardo Castellanos
Summary: In this study, photosynthetic pigments and photoprotective compounds in seaweeds from the Colombian Pacific coast were assessed. Samples were collected along a latitudinal gradient and in different periods of high and low UV index. The study confirms the hypothesis that tropical species produce higher concentrations of photoprotective compounds in response to UV radiation.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2023)
Article
Pharmacology & Pharmacy
Norman Urrego, Paula Sepulveda, Marcela Aragon, Freddy A. Ramos, Geison M. Costa, Luis F. Ospina, Leonardo Castellanos
Summary: The study aimed to evaluate the anti-inflammatory activity of aqueous extract, fractions, and major compounds from Passiflora edulis f. edulis leaves. Major compounds were isolated using chromatography techniques, and structural elucidation was done using various methods. The most favorable anti-inflammatory results were obtained for the flavonoid-rich fraction, which also showed high inhibition of nitric oxide synthase activity.
JOURNAL OF PHARMACY AND PHARMACOLOGY
(2021)
Article
Marine & Freshwater Biology
Wilson Rodriguez, Carmenza Duque, Sven Zea, Leonardo Castellanos, Freddy Ramos, Abel M. Forero, Oscar Osorno
Summary: The study analyzed the fatty acid composition in five demosponges of the order Axinellida and one sponge of the order Scopalinida. It identified 83 fatty acids and found brominated fatty acids and polybranched fatty acids without a clear distribution pattern. Seasonal variations in fatty acid composition were observed in Myrmekioderma rea and Dragmacidon alvarezae. The hierarchical Clusters Analysis showed that the fatty acid composition was species-specific rather than informative at higher taxonomic levels.
OCEAN AND COASTAL RESEARCH
(2021)
Article
Marine & Freshwater Biology
David M. Hudson, Barrett L. Christie, Luis A. Gomez-Limos, Camilo Valcarcel, Diego Duque, Juan Camilo Zarate Arevalo, Jaime Rojas, Otto Reyes, Milena Marrugo, Maria Rosa, Israel A. Calcedo Torrado, Diana Tarazona, Carlos Zuluaga
GULF AND CARIBBEAN RESEARCH
(2020)
Article
Biology
Elvira M. Alvarado-Chacon, Luis A. Gomez-Lemos, Nireth P. Sierra-Sabalza, Ana M. Hernandez-Chamorro, Juan P. Lozano-Pena, Camilo A. Valcarcel-Castellanos, Valeria Pizarro, Rocio Garcia-Urena, Juan C. Zarate-Arevalo, Jaime A. Rojas
REVISTA DE BIOLOGIA TROPICAL
(2020)
Article
Chemistry, Multidisciplinary
Paola A. Martinez-Buitrago, Freddy A. Ramos, Leonardo Castellano