Article
Biochemistry & Molecular Biology
Andre Guilherme Madeira, Yoshiaki Tsuda, Yukio Nagano, Takaya Iwasaki, Maria Imaculada Zucchi, Tadashi Kajita, Gustavo Maruyama Mori
Summary: Dispersal is crucial for living beings to reach new resources and occupy new environments. However, observing the dispersal mechanisms of widespread species like mangrove trees can be costly or impractical. This study evaluates the role of ocean currents on the connectivity of Rhizophora mangle in the Southwest Atlantic. The findings suggest that isolation by distance and isolation by oceanography can explain the genetic variation of R. mangle, highlighting the importance of molecular methods and oceanographic simulations in understanding dispersal processes.
MOLECULAR ECOLOGY RESOURCES
(2023)
Article
Plant Sciences
Emmanuel Iwuala, Okon Unung, Modinat Adekoya, Isiaka Abiodun, Victor Odjegba, Abiodun Ajiboye, Ethel Phiri, Afroz Alam
Summary: This study investigated the combined impact of drought and salinity on the growth and physiology of red mangroves. The results showed that simultaneous application of both stresses led to a decline in plant growth and physiological functions, along with increased oxidative stress. However, the red mangrove exhibited certain stress resistance mechanisms, such as activation of antioxidant enzyme activities and accumulation of osmoprotectants. Gas exchange attributes, photosynthetic content, antioxidant enzyme activities, and malondialdehyde were identified as reliable screening parameters for salinity and drought stress tolerance in red mangroves.
ACTA PHYSIOLOGIAE PLANTARUM
(2023)
Article
Plant Sciences
Diana J. Cisneros-de la Cruz, Laura Yanez-Espinosa, Casandra Reyes-Garcia, Roberth Us-Santamaria, Jose Luis Andrade
Summary: This study investigates the anatomical and physiological attributes of seedlings and adults of Rhizophora mangle and their changes in hydraulic architecture in different microenvironments. The results show that seedlings have a safer hydraulic conduction system compared to adults, and adult individuals in hyper saline microenvironments have a safer hydraulic conduction system compared to those in fringe mangroves.
BOTANICAL SCIENCES
(2022)
Article
Limnology
Sandra Kammann, Daniel Arturo Saavedra Hortua, John S. Kominoski, Theresa-Marie Fett, Lucy Gwen Gillis
Summary: This study found that functional traits of mangroves and seagrasses are closely related to blue carbon accumulation. The physical traits of these plants are positively correlated with sediment nutrient content, and different functional traits influence carbon storage potential. Moreover, mangrove root complexity is linked to phosphorus limitation.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Evolutionary Biology
Jeannie Mounger, M. Teresa Boquete, Marc W. Schmid, Renan Granado, Marta H. Robertson, Sandy A. Voors, Kristen L. Langanke, Mariano Alvarez, Cornelis A. M. Wagemaker, Aaron W. Schrey, Gordon A. Fox, David B. Lewis, Catarina Fonseca Lira, Christina L. Richards
Summary: The study focused on genetic and epigenetic diversity in natural populations of Rhizophora mangle, revealing low genetic diversity but high epigenetic diversity. It also found that a significant portion of epigenetic differences among offspring can be explained by maternal family, suggesting that epigenetic variation could play an important role in adaptation to challenging environments in genetically depauperate populations of this foundation species.
EVOLUTION & DEVELOPMENT
(2021)
Article
Multidisciplinary Sciences
Ludwig Triest, Tom Van der Stocken, Dennis De Ryck, Marc Kochzius, Sophie Lorent, Magdalene Ngeve, Hajaniaina Andrianavalonarivo Ratsimbazafy, Tim Sierens, Rosa van der Ven, Nico Koedam
Summary: Genetic diversity and connectivity of Rhizophora mucronata was studied across a coastal stretch in the Western Indian Ocean, revealing genetic breaks between populations along the East African coastline, Mozambique Channel Area, granitic Seychelles, and Aldabra and northern Madagascar. The study demonstrated how oceanographic processes can connect and separate mangrove populations irrespective of geographic distance.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Mariana Y. Lopez-Chavez, Dulce Infante-Mata, T. Alvarez-Legorreta, Michael F. Dunn, Ricardo A. Castro-Chan, Karina Guillen-Navarro
Summary: This study aimed to evaluate the impact of a common glyphosate-based herbicide on mangrove and water chestnut trees. The results showed that different concentrations of glyphosate had different effects on plant growth, with continuous application leading to reduced growth. Additionally, glyphosate also decreased the release of carbon dioxide from the soil. These findings contribute to the understanding of the adverse effects of glyphosate on ecologically important trees and their ecosystem services in coastal areas.
Article
Critical Care Medicine
Luzia Abilio da Silva, Eduardo Carvalho Lira, Leila Bastos Leal, Eduarda Santos de Santana, Irla Carla de Franca Barbosa, Yuri Jose de Albuquerque Silva, Severino Alves Junior, Jeymesson Raphael Cardoso Vieira
Summary: This study aimed to evaluate the potential of combining a natural hydrogel with an extract of Rhizophora mangle in preventing tissue necrosis in ischemic cutaneous flaps in rats. The results showed that this combination had a significant effect in reducing the area of tissue necrosis and had fewer side effects compared to synthetic drugs.
INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
(2022)
Article
Biodiversity Conservation
Giovanna McClenachan, Megan Witt, Linda J. Walters
Summary: Studies have shown that increases in minimum air temperatures in the southeastern United States have led to transitions of salt marshes to mangroves, but there is no documentation of oyster reefs converting to mangrove islands. Through aerial photographs and high-resolution satellite imagery, researchers found that the coverage and number of mangrove patches on oyster reefs in Mosquito Lagoon, FL have increased from 1943 to 2017. The expansion of mangroves on oyster reefs correlated with a lack of extreme freeze events and could potentially lead to a shift from intertidal oyster reefs to mangrove islands near polar mangrove range limits.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Forestry
J. Aaron Hogan, Edward Castaneda-Moya, Lukas Lamb-Wotton, Tiffany Troxler, Christopher Baraloto
Summary: This study investigated how mangrove-island micro-elevation affects tree physiology and found that inundation stress is the primary driver of leaf gas exchange rates in scrub mangroves.
Article
Environmental Sciences
Christina L. Richards, Kristen L. Langanke, Jeannie Mounger, Gordon A. Fox, David B. Lewis
Summary: Coastal foundation plant species exhibit phenotypic variation and plasticity in response to environmental conditions such as salinity and nitrogen levels. The response of propagules from different populations of Rhizophora mangle to salinity and nitrogen varied, with changes in succulence, root to shoot biomass allocation, and photosynthetic rate. This variation in phenotypes and plasticity may contribute to adaptation to diverse environmental conditions and climate change within and among populations.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Plant Sciences
Ying-peng Hua, Yi-fan Zhang, Tian-yu Zhang, Jun-fan Chen, Hai-li Song, Peng-jia Wu, Cai-peng Yue, Jin-yong Huang, Ying-na Feng, Ting Zhou
Summary: In this study, we found that both low Fe and NaCl significantly inhibited the growth of seminal roots in wheat seedlings. Sufficient Fe caused greater growth cessation of the seminal roots than low Fe under salt stress. Low Fe alleviated the salinity-induced growth cessation of seminal roots by responding to local low Fe signals in the roots.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
A. Piro, S. Mazzuca, S. Phandee, M. Jenke, P. Buapet
Summary: This study investigates the response mechanisms of Rhizophora mucronata seedlings to submergence. The results show that submergence leads to decreased photosynthetic activity, altered nutrient ion content, and changes in protein accumulation in leaves and roots. These findings provide insights into the survival strategies of R. mucronata under prolonged submergence.
Article
Ecology
Heather A. Stewart, Dean S. Janiak, Jennifer L. Wright, David A. G. A. Hunt, Andrea Carmona Cortes, Krystyna T. Powell, Lauren J. Chapman, Andrew H. Altieri
Summary: This study examines the effects of foundation species traits on community structure using red mangrove roots as a model system. The results show that substrate composition has significant effects on the composition and abundance of sessile epibionts and mobile invertebrates. Additionally, there are strong positive relationships between mobile invertebrate richness and the abundance and richness of secondary foundation species.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Ecology
Edlin J. Guerra-Castro, Jesus Eloy Conde, Amalia Barcelo, Juan J. Cruz-Motta
Summary: The study suggests that environmental factors play a key role in shaping the composition and structure of assemblages in mangrove systems at a spatial scale, while shallow depths are critical environmental filters at a local scale. In addition to environmental factors, neutral processes may also influence the distribution and abundance of species, with a wide diversity of spatiotemporal trends observed for different species.
