Article
Multidisciplinary Sciences
Sarah J. Adkins-Jablonsky, Colleen M. Clark, Spiridon E. Papoulis, Matthew D. Kuhl, J. Jeffrey Morris
Summary: This passage discusses how leaky biological functions are distributed in microbial communities, with a focus on the distribution of antibiotic resistance genes in Escherichia coli based on the market principle of comparative advantage. Results show that antibiotic-sensitive cells can invade communities of antibiotic-resistant cells, leading to fixation of antibiotic sensitivity in one species. The intrinsic resistance level and opportunity cost of resistance, rather than absolute cost or efficiency of antibiotic removal, determine which species becomes the sole beneficiary, highlighting the role of comparative advantage in evolutionary dynamics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Ecology
Mateu Menendez-Serra, Vicente J. Ontiveros, Albert Barberan, Emilio O. Casamayor
Summary: Increasing saline stress in ephemeral saline lakes reduces microbial co-exclusions while co-occurrences remain stable, suggesting a decrease in competition and lack of stress-gradient promoted facilitation in the microbiome.
Article
Microbiology
Dailin Yang, Hiromi Kato, Kazutaka Kawatsu, Yutaka Osada, Toyohiro Azuma, Yuji Nagata, Michio Kondoh
Summary: By combining amplicon-based diversity survey with recently developed nonlinear analytical tools, the interaction networks of more than 150 natural soil microbial genera were determined under different temperature stress conditions. The study explored the applicability of the stress gradient hypothesis to soil microbiota and shed new light on this well-known hypothesis.
MICROBIOLOGY SPECTRUM
(2022)
Article
Plant Sciences
Xinting Wang, Chao Jiang, Yanyan Chi, Yang Tai, Cunzhu Liang, Frank Yonghong Li, Yali Hou
Summary: Our study results suggest that facilitation between and within species in steppe communities along the recovery gradient is related to herbivore pressure induced by long-term overgrazing. While no evidence of indirect facilitation between species was observed in the current grazing treatment, direct facilitation between plant species appears strongest at early stages of natural recovery along the gradient of the grazing exclusion time. Moreover, indirect intraspecific facilitation dominated in the current grazing treatment, especially at small scales across the same gradient.
JOURNAL OF VEGETATION SCIENCE
(2021)
Article
Environmental Sciences
Hugo Rande, Richard Michalet, David Nemer, Florian Delerue
Summary: This study experimentally assessed the short-term and long-term effects of different plants along a metal pollution gradient. The results showed that short-term interactions were influenced by plant adaptation to metal stress, while long-term interactions were affected by leaf metal accumulation and microhabitat conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Yao Yuan, Zhen Zhou, Jie Jiang, Kaichong Wang, Siqi Yu, Jiaxin Qiang, Qiang Ming, Ying An, Jianfeng Ye, Deli Wu
Summary: The effects of salinity level and gradient on partial nitrification performance, sludge properties, and microbial activities were investigated using partial nitrification membrane bioreactors. Higher salinity levels led to increased nitrite accumulation rate and ammonia removal, as well as the differentiation of AOBs and nitrite-oxidizing bacteria. Salt gradients played a significant role in the evolution of microbial communities towards salt-tolerant bacteria.
BIORESOURCE TECHNOLOGY
(2021)
Article
Ecology
Veronica Chillo, Diego P. Vazquez, Julia Tavella, Luciano Cagnolo
Summary: The study reveals that under increasing environmental stress, plant co-occurrences are affected. Positive co-occurrences are more frequent in highly utilized lands, while negative co-occurrences are more common in low-intensity lands. Additionally, there is a partial relationship between co-occurrences and functional traits.
Article
Multidisciplinary Sciences
Shota Shibasaki, Mauro Mobilia, Sara Mitri
Summary: The study found that environmental fluctuations can impact the diversity of microbial communities, especially under harsh conditions. In harsh conditions, the probability of weaker species driving the stronger one extinct increases, reaching a peak at different switching rates. This complex relationship has made it historically difficult to find patterns between environmental fluctuations and diversity.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2021)
Article
Plant Sciences
Guangshuai Cui, Francisco I. Pugnaire, Liu Yang, Wanglin Zhao, Rita Ale, Wei Shen, Tianxiang Luo, Eryuan Liang, Lin Zhang
Summary: Shrub facilitates the survival, growth, and reproduction of understory species by buffering environmental extremes and improving limited resources in arid and semiarid regions. However, the importance of soil water and nutrient availability on shrub facilitation, and its trend along a drought gradient, have been relatively less addressed.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biodiversity Conservation
Christopher R. Anthony, Matthew J. Germino
Summary: Species interactions, influenced by abiotic stress and biotic interactions, play a critical role in determining native bunchgrass abundances across environmental gradients. The stress-gradient hypothesis predicts that species interactions will vary with environmental conditions, and the resistance-resilience concept helps predict the complications of invasions on ecosystem recovery. This study demonstrates that the association between native bunchgrasses and cheatgrass is context dependent and influenced by the abundances of both species, driven by environmental stress.
GLOBAL ECOLOGY AND CONSERVATION
(2023)
Article
Multidisciplinary Sciences
Simon A. Schroeter, Damien Eveillard, Samuel Chaffron, Johanna Zoppi, Bernd Kampe, Patrick Lohmann, Nico Jehmlich, Martin von Bergen, Carlos Sanchez-Arcos, Georg Pohnert, Martin Taubert, Kirsten Kuesel, Gerd Gleixner
Summary: The study reveals that functions within decomposer communities are redundantly distributed under different types of litter sources, but their relative expressions are rapidly optimized to address specific litter properties. Furthermore, the decomposer community may be influenced by DOM containing natural antibiotics, leading to specialization towards specific litter sources and decomposition states.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
V. B. Centurion, G. Lacerda-Junior, A. W. F. Duarte, T. R. Silva, L. J. Silva, L. H. Rosa, V. M. Oliveira
Summary: Whalers Bay in Deception Island is an environment where temperature can drastically change within a few meters, primarily inhabited by microorganisms with high diversity and adaptive potential. Research showed that stress-related functions were influenced by temperatures and solar radiation in 2015 and 2017, particularly related to oxidative stress.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Tinghui Yang, Xiaojuan Li, Bin Hu, Dandan Wei, Zilong Wang, Weikai Bao
Summary: This study investigated the latitudinal patterns of soil microbial biomass and community composition in arid valleys of southwest China. The results showed that soil microbial biomass increased with latitude, while specific microbial groups were influenced by vegetation properties and soil nutrients. Climate, vegetation, and soil properties were identified as crucial drivers of changes in soil microbial communities with latitude.
Article
Engineering, Environmental
Weiwen Yin, Baogang Zhang, Han Zhang, Daxin Zhang, Tiina Leiviska
Summary: This study investigated the distribution of vanadium (V) and microplastics in soil at a V smelting site and their effects on microbial community dynamics and assembly. The results showed that both V and microplastics were present in the soil profile, with different microbial community compositions in the topsoil and subsoil. V and microplastics had direct impacts on the microbial structure in the topsoil and indirect influences in the subsoil. Deterministic processes were more prevalent in community assembly in the topsoil, while stochastic processes governed the subsoil. The interspecific relationship was closer in the topsoil with greater network complexity and higher modularity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Forestry
F. Wayne Bell, Holly D. Deighton, Jennifer Dacosta, Isabelle Aubin, Steven G. Newmaster, Eric B. Searle, Shelley Hunt
Summary: The study examines the response traits of woody and herbaceous understory plants in northern temperate and boreal forest communities to linked-press and compounded-pulse disturbances. The results show that these traits are affected in unique ways, with logarithmic or hump-shaped patterns observed. The interactions between linked-press and compounded-pulse disturbances have non-linear effects on the response traits, varying with trait, understory layer, and type of disturbance.
FOREST ECOLOGY AND MANAGEMENT
(2023)