Review
Microbiology
Jonathan Dworkin, Caroline S. Harwood
Summary: Researchers in bacterial physiology have traditionally focused on the exponential growth phase of bacterial cultures, but in nature, most bacteria experience nutrient limitation. This review explores how bacteria transition to growth arrest in response to nutrient limitation through changes in transcription, translation, and metabolism, and how these changes facilitate survival during periods of nutrient limitation.
ANNUAL REVIEW OF MICROBIOLOGY
(2022)
Review
Oceanography
Fabio Favoretto, Carlos Sanchez, Octavio Aburto-Oropeza
Summary: Marine communities globally are being affected by gradual warming and extreme heatwaves, leading to shifts in species' geographic range. This has impacts on economies, food supply, and health. This study focuses on the Gulf of California and reveals how a known ecological boundary shifted northward due to warming and more frequent heatwaves, resulting in the homogenization of environmental conditions and reconfiguration of rocky reefs communities.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Ecology
Jasmin M. Schuster, Amanda E. Bates
Summary: Widespread decline in underwater forests formed by kelps and other macroalgae is occurring in all oceans. This decline has major impacts on food availability and quality, and can lead to alternate reef states dominated by substrate-near vegetation or reefs without large fleshy macroalgae. In this study, we investigate the physiological responses of grazers to changes in food quality and quantity, and find that food restrictions have the strongest influence on oxygen consumption in sea urchins. Overall, there is a weak coupling between heat resistance and food quality and quantity for these species and at short time spans.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2023)
Article
Evolutionary Biology
Chuya Shinzato, Takeshi Takeuchi, Yuki Yoshioka, Ipputa Tada, Miyuki Kanda, Cedric Broussard, Akira Iguchi, Makoto Kusakabe, Frederic Marin, Noriyuki Satoh, Mayuri Inoue
Summary: The study found that corals of the genus Porites have unique genetic characteristics that give rise to their stress tolerance and longevity. Specifically, 30% of the skeletal matrix proteins in Porites were found to be unique to this coral species and not present in other corals. Comparative genomic analyses revealed that genes widely conserved among other organisms are selectively expanded in Porites, potentially contributing to their thermal tolerances and unique biological characteristics.
GENOME BIOLOGY AND EVOLUTION
(2021)
Article
Evolutionary Biology
Chuya Shinzato, Takeshi Takeuchi, Yuki Yoshioka, Ipputa Tada, Miyuki Kanda, Cedric Broussard, Akira Iguchi, Makoto Kusakabe, Frederic Marin, Noriyuki Satoh, Mayuri Inoue
Summary: Massive corals of the genus Porites, known for their stress tolerance and longevity, have unique genetic bases that contribute to their ability to respond differently to environmental stressors like increased water temperature. Through genome sequencing and proteome analysis, it was found that some skeletal matrix protein genes in Porites are unique to this genus, which may explain their thermal tolerance compared to other coral species.
GENOME BIOLOGY AND EVOLUTION
(2021)
Review
Microbiology
Jonathan Dworkin
Summary: As bacteria start to run out of essential nutrients, their growth is reduced, eventually leading to stasis or quiescence. The response to nutrient limitation is mainly examined in the context of amino acid starvation, known as the stringent response. In this process, an uncharged tRNA in the A-site of the ribosome stimulates the ribosome-associated protein RelA to produce the hyperphosphorylated guanosine nucleotides (p)ppGpp, which effectively slow down overall growth and biosynthesis.
Article
Soil Science
Wenliang Ju, Daryl L. Moorhead, Guoting Shen, Yongxing Cui, Linchuan Fang
Summary: Natural restoration of degraded grasslands following livestock removal significantly impacted soil nutrient and carbon concentrations, soil aggregate distributions, and extracellular enzyme activities. Using a stoichiometry model, researchers found that microbial resource limitations in soil aggregates were influenced by the duration of livestock removal, with microbial carbon use efficiency also being affected. Soil abiotic factors, particularly total nitrogen and pH, were identified as key determinants of resource limitation. These findings provide valuable insights for grassland management strategies to enhance carbon sequestration.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Plant Sciences
Maryam Nasr Esfahani, Miyako Kusano, Mostafa Abdelrahman, Kien Huu Nguyen, Yasuko Watanabe, Keiichi Mochida, David J. Burritt, Lam-Son Phan Tran
Summary: This study aimed to identify key NO3- and/or Pi starvation-responsive metabolic pathways in chickpea and found significant differences in metabolic adaptation under single and double nutrient deficiencies. The simultaneous deficiency of NO3- and Pi generated unique metabolic changes that couldn't simply be explained by the combined deficiencies of the two nutrients.
Article
Chemistry, Multidisciplinary
Ping Ji, Tian-Yang Wang, Guo-Feng Luo, Wei-Hai Chen, Xian-Zheng Zhang
Summary: The tumor cell membrane-camouflaged therapeutic system, embedding apyrase and glucose oxidase into nanoparticles, was shown to disrupt tumor cell energy supply by depleting ATP and glucose, leading to efficient tumor cell death.
CHEMICAL COMMUNICATIONS
(2021)
Article
Marine & Freshwater Biology
Molly A. Moynihan, Shahrouz Amini, Nathalie F. Goodkin, Jani T. I. Tanzil, J. Q. Isaiah Chua, Gareth N. Fabbro, Tung-Yung Fan, Daniela N. Schmidt, Ali Miserez
Summary: This study examined the micro-mechanical properties and chemical composition of Porites corals from different reef environments. Results showed unprecedented variability in hardness, stiffness, and micro-cracking stress of Porites corals across environments, potentially decreasing the structural integrity of reef substrate. Factors such as low salinity and high sedimentation were linked to higher organic content and increased embrittlement in the corals, suggesting the importance of environmental conditions on skeletal mechanical properties.
Article
Agronomy
Mauricio Tejera-Nieves, Berkley J. Walker
Summary: A long-standing question in perennial grass breeding and physiology is whether yield improvement strategies could compromise winter survival. It is crucial to understand the dependence of regrowth on storage reserves. Switchgrass showed a large plasticity among its source-sink components to buffer the imposed reserve depletion and current breeding strategies should not compromise crop persistence.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2023)
Article
Environmental Sciences
Bing Xie, Chuan-yue Chen, Xiaolin Zhang, Si-yuan Li, Zhong-qi Gu, Ji Huang, Jian-yu He, Peng-zhi Qi, Bao-ying Guo, Zhi Liao, Xiaojun Yan
Summary: This study conducted gill transcriptome analysis of Mytilus before and after starvation, revealing significant up- and down-regulation of many genes and suggesting that mussels may use autophagy to cope with damage after starvation.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Zoology
Zhe-Lun Peng, Bin-Xu Yin, Rui-Min Ren, Yin-Long Liao, Hao Cai, Heng Wang
Summary: Salamanders are unique among tetrapods for their ability to regenerate limbs throughout life and survive long periods of starvation. Under extreme physiological stress, salamanders can utilize autophagy to promote limb regeneration, demonstrating a special regulation of regenerative capacity.
ZOOLOGICAL RESEARCH
(2021)
Article
Environmental Sciences
Xiaoying Zheng, Yun Zhang, Ye Zhang, Yufei Cui, Juying Wu, Weiwei Zhang, Dongli Wang, Junliang Zou
Summary: This study conducted a meta-analysis of 130 studies to examine the effects of different fertilization treatments on soil respiration and its components. The results showed that nitrogen addition significantly reduced soil respiration and heterotrophic respiration, while phosphorus addition had no significant effect. However, the addition of both nitrogen and phosphorus increased soil respiration. The study also found that ecosystem type, duration of fertilization, fertilization rate, and fertilizer form influenced the response of soil respiration to fertilizer application. Additionally, annual average temperature and soil total nitrogen were identified as important predictors of the response of soil respiration to fertilizer addition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Ecology
Anna C. Vinton, David A. Vasseur
Summary: Recent research has shown that changes in resource availability can impact a consumer's thermal performance curve. When resources decline, the optimal temperature and breadth of thermal performance also decrease, increasing the risk of warming. This study investigates how temperature affects consumer-resource dynamics and the potential for changes in the consumer's thermal performance curve to alter extinction risk.
Article
Ecology
Nicolas R. Evensen, Peter J. Edmunds
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2018)
Article
Marine & Freshwater Biology
R. C. Carpenter, C. A. Lantz, E. Shaw, P. J. Edmunds
Article
Marine & Freshwater Biology
Georgios Tsounis, Peter J. Edmunds, Lorenzo Bramanti, Bonnie Gambrel, Howard R. Lasker
Article
Multidisciplinary Sciences
Sally J. Holbrook, Thomas C. Adam, Peter J. Edmunds, Russell J. Schmitt, Robert C. Carpenter, Andrew J. Brooks, Hunter S. Lenihan, Cheryl J. Briggs
SCIENTIFIC REPORTS
(2018)
Article
Marine & Freshwater Biology
Steve S. Doo, Robert C. Carpenter, Peter J. Edmunds
Article
Marine & Freshwater Biology
Peter J. Edmunds, Georgios Tsounis, Ralf Boulon, Lorenzo Bramanti
Article
Ecology
Peter J. Edmunds, Hannah R. Nelson, Lorenzo Bramanti
Article
Marine & Freshwater Biology
Peter J. Edmunds, Georgios Tsounis, Ralf Boulon, Lorenzo Bramanti
Article
Ecology
P. J. Edmunds, T. C. Adam, A. C. Baker, S. S. Doo, P. W. Glynn, D. P. Manzello, N. J. Silbiger, T. B. Smith, P. Fong
MARINE ECOLOGY PROGRESS SERIES
(2019)
Article
Ecology
Peter J. Edmunds
Article
Ecology
Erik B. Muller, Konstadia Lika, Roger M. Nisbet, Irvin R. Schultz, Jerome Casas, Andre Gergs, Cheryl A. Murphy, Diane Nacci, Karen H. Watanabe
FUNCTIONAL ECOLOGY
(2019)
Article
Ecology
Peter J. Edmunds, Howard R. Lasker
MARINE ECOLOGY PROGRESS SERIES
(2019)
Article
Marine & Freshwater Biology
Peter J. Edmunds, Steve S. Doo, Robert C. Carpenter
Article
Ecology
N. N. Price, S. Muko, L. Legendre, R. Steneck, M. J. H. van Oppen, R. Albright, P. Ang, R. C. Carpenter, A. P. Y. Chui, T-Y Fan, R. D. Gates, S. Harii, H. Kitano, H. Kurihara, S. Mitarai, J. L. Padilla-Gamino, K. Sakai, G. Suzuki, P. J. Edmunds
MARINE ECOLOGY PROGRESS SERIES
(2019)
Article
Ecology
Glenn Ledder, Sabrina E. Russo, Erik B. Muller, Angela Peace, Roger M. Nisbet
THEORETICAL ECOLOGY
(2020)