Review
Biochemistry & Molecular Biology
Gulam Rabbani, Ejaz Ahmad, Abrar Ahmad, Rizwan Hasan Khan
Summary: Microbial lipases are excellent biocatalysts that can catalyze various reactions in both aqueous and non-aqueous media. This review focuses on microbial lipases from different sources (psychrophiles, mesophiles, and thermophiles), highlighting the structural diversity in temperature adaptation and industrial applications. Understanding the molecular mechanisms of temperature adaptation in lipases is of great interest, as extremophilic lipases are widely used in biotransformation reactions with higher yields and unique products.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Remy Perez, Natalia de Souza Araujo, Matthieu Defrance, Serge Aron
Summary: This study focused on molecular adaptations to heat stress in the thermophilic ant genus Cataglyphis and found that all six species had high heat tolerance levels with similar heat-shock response pathways, involving the regulation of transcriptional machinery, preservation of proteome stability, elimination of toxic residues, and maintenance of cellular integrity. The results suggest that these molecular responses have been evolutionarily conserved in Cataglyphis ants and may help them withstand temperatures close to their physiological limits.
Article
Microbiology
Muhammad Talha Yasin, Yasir Ali, Khurshid Ahmad, Abdul Ghani, Kinza Amanat, Muhammad Mudassir Basheir, Muhammad Faheem, Saddam Hussain, Bashir Ahmad, Adil Hussain, Syed Ali Imran Bokhari
Summary: This study successfully biosynthesized and characterized an alkaliphilic lipase from Exiguobacterium sp. isolated from glacial water samples in Pakistan. The lipase activity was maximized by optimizing production parameters and the enzyme showed stability over a range of temperature and pH.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Ecology
Olga V. V. Karnachuk, Inna A. A. Panova, Igor I. I. Rusanov, Lilia Schetinina, Olesya Y. Y. Lepokurova, Evgenia V. V. Domrocheva, Vitaly V. V. Kadnikov, Marat R. R. Avakyan, Anstasia P. P. Lukina, Liubov B. B. Glukhova, Nikolai V. V. Pimenov, Nikolai V. V. Ravin
Summary: This study explored the microbial community of coal bed water and found an overlapping mesophilic-psychrophilic boundary, dominated by the Desulfovibrio genus and the D. psychrotolerans 1203 strain. Additionally, the researchers discovered an active thermophilic community in the fracture water, reducing sulfate at a rate of 0.159 to 0.198 nmol S cm(-3) day(-1) at 55 degrees C.
Article
Biology
Ya-qi Chen, Jie Wang, Ming-ling Liao, Xiao-xu Li, Yun-wei Dong
Summary: The periwinkle snail Echinolittorina malaccana is one of the most heat-tolerant eukaryotes known, showing a range of adaptations to extreme heat including modulation of metabolism, cardiac activity, and membrane structure as well as utilizing anaerobic metabolism for energy supply. The species also demonstrates complex changes in concentration of protein-stabilizing solutes to protect the proteome under heat stress, revealing a wide array of adaptive strategies to acclimatize to extremely high temperatures.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Environmental Sciences
Maria del Mar Ossa-Arias, Simon Gonzalez-Martinez
Summary: Anaerobic digestion of organic waste can generate methane as an energy source and produce fertilizers. The characteristics of the resulting digestate depend on the substrate and process variables. This study investigated the anaerobic digestion of municipal solid waste at different organic loading rates and temperatures and analyzed the characteristics of the resulting digestate.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Chemistry, Medicinal
Srikanta Sen, Munna Sarkar
Summary: This study investigates the rigidity and flexibility of psychrophilic, mesophilic, and thermophilic proteins using packing factors and atomic fluctuations. The results show no differences in global values, but differences at the local level, with the order of atomic fluctuations being P > M > T. The study suggests altering the rigidity of the active site as a potential strategy to engineer tailor-made psychrophilic or thermophilic proteins.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2022)
Article
Multidisciplinary Sciences
Guihuan Bai, Lv You, Li Long, Dan Wang, Ming Wang, Junhua Wang, Jianhua Li, Xiaoyu Wei, Shijun Li
Summary: This study investigates the genetic diversity of different serogroups of nontyphoidal Salmonella in Guizhou province. The results show that CRISPR genotyping is an effective method to reveal the genetic diversity of different nontyphoidal Salmonella serotypes.
Review
Biotechnology & Applied Microbiology
Sepideh Parvizpour, Nurulfarhana Hussin, Mohd Shahir Shamsir, Jafar Razmara
Summary: Psychrophiles are microorganisms that synthesize enzymes which remain active at near-zero temperatures, with greater structural flexibility than their homologous proteins. This flexibility allows for conformational changes during catalysis and improved efficiency at low temperatures. The unique characteristics of psychrophilic enzymes have led to their potential applications in various industrial and pharmaceutical processes.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Environmental Sciences
Maria del Mar Ossa-Arias, Simon Gonzalez-Martinez
Summary: The study found that different temperatures and organic loading rates have a significant impact on methane production from anaerobic digestion of municipal solid waste's organic fraction. The digester operating at 35 degrees Celsius reached stable operation faster than the other two under higher organic loading rates.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Microbiology
Jithin S. Sunny, Anuradha Natarajan, Khairun Nisha, Lilly M. Saleena
Summary: Using a metagenomic approach, this study explored bacterial diversity in compost sites categorized by ambient temperatures. Distinct species of thermophiles and psychrophiles were identified in different sites, providing insight into bacterial growth characteristics in extreme environments. Such findings may be crucial for understanding the extended growth temperatures of bacteria.
CURRENT MICROBIOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Lucas Rodrigues Ramos, Giovanna Lovato, Jose Alberto Domingues Rodrigues, Edson Luiz Silva
Summary: The study found that operating the second-stage methanogenic reactor at mesophilic temperature in two-stage anaerobic digestion system can achieve the best energetic yield, as well as better stability and flexibility.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biochemistry & Molecular Biology
Zahoor Ahmed, Hasan Zulfiqar, Lixia Tang, Hao Lin
Summary: The study found that polar amino acids, short bond length, wide DHA angle, and aromatic amino acids play important roles in the thermostability of proteins through statistical analysis on pairs of thermophilic proteins and their non-thermophilic orthologous.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Jithin S. Sunny, Khairun Nisha, Anuradha Natarajan, Lilly M. Saleena
Summary: Biocatalysts have advantages over traditional chemical processes in industries, and enzymes from thermophilic and psychrophilic bacterial species show potential for industrial applications due to their affinity to extreme temperatures. However, utilization of these enzymes is challenging due to overwhelming distribution of sequence data. The IND-Enzymes database is the largest repository for hydrolytic enzymes, providing essential resources for protein engineering.
Article
Biochemistry & Molecular Biology
Katarzyna M. Wisniewska, Aleksandra Twarda-Clapa, Aneta M. Bialkowska
Summary: The study identified a psychrophilic laccase-producing strain from Kabatiella bupleuri, which showed high catalytic activity in mild conditions. This new laccase exhibited thermolability and demonstrated potential applications in both environmental and industrial fields.
Article
Biotechnology & Applied Microbiology
Renxing Liang, Maggie Lau, Tatiana Vishnivetskaya, Karen G. Lloyd, Wei Wang, Jessica Wiggins, Jennifer Miller, Susan Pfiffner, Elizaveta M. Rivkina, Tullis C. Onstott
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2019)
Article
Biotechnology & Applied Microbiology
Katie Sipes, Abraham Almatari, Alexander Eddie, Daniel Williams, Elena Spirina, Elizaveta Rivkina, Renxing Liang, Tullis C. Onstott, Tatiana A. Vishnivetskaya, Karen G. Lloyd
Summary: Permafrost microbes in ancient soil exhibit unique adaptations to extreme environments, with genomic data showing differences from nonpermafrost counterparts. These microbes possess genes for membrane stabilization, osmotic stress responses, and energy production, indicating strategies for long-term survival in frozen conditions.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Engineering, Environmental
Xiaofen Wu, Archana Chauhan, Alice C. Layton, Maggie C. Y. Lau Vetter, Brandon T. Stackhouse, Daniel E. Williams, Lyle Whyte, Susan M. Pfiffner, Tullis C. Onstott, Tatiana A. Vishnivetskaya
Summary: The study revealed significant differences in taxonomic composition and function of microbial communities in low-carbon permafrost (PF) and active layer soils. Microbial biodiversity was found to be higher in the active layer compared to PF, and gene abundance varied between the two soil layers.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Astronomy & Astrophysics
Tatiana A. Vishnivetskaya, Vasiliy A. Mironov, Andrey A. Abramov, Viktoria A. Shcherbakova, Elizaveta M. Rivkina
Summary: This article describes a study on frozen volcanic deposits from Russia and Antarctica, which found the presence of thermophilic microorganisms in volcanic permafrost. These findings provide insights for the potential existence of alien life on Mars and guidance for future exploration missions on the planet.
Article
Microbiology
Katie Sipes, Raegan Paul, Tullis C. Onstott, Tatiana A. Vishnivetskaya, Karen G. Lloyd
Summary: Ten isolates from the genus Pseudomonas were cultured and their genomes were sequenced and assembled. This study aimed to provide insights into the metabolic and carbon-degrading potential of bacteria in soils at high latitudes.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Multidisciplinary Sciences
Juan Pedro Rodriguez-Lopez, Chihua Wu, Tatiana A. Vishnivetskaya, Julian B. Murton, Wenqiang Tang, Chao Ma
Summary: During the supergreenhouse period in the Cretaceous Earth, an active cryosphere with permafrost existed in Chinese plateau deserts, indicating a strong coupling of the ocean-atmosphere system. The Cretaceous permafrost contained a rich microbiome and contributed to the carbon and nutrient cycle in the ancient oceans and atmosphere, challenging the previous assumption of persistent ice-free greenhouse conditions.
NATURE COMMUNICATIONS
(2022)
Review
Microbiology
Andrey Abramov, Tatiana Vishnivetskaya, Elizaveta Rivkina
Summary: Permafrost describes the condition of earth material cemented by ice when its temperature remains at or below 0 degrees C continuously for longer than 2 years. It is a unique phenomenon that may preserve ancient life forms. Understanding the geological age of sediments and permafrost is essential for confidently discussing the preservation of paleo-objects in permafrost.
FEMS MICROBIOLOGY ECOLOGY
(2021)
Article
Microbiology
Tatiana A. Vishnivetskaya, Abraham L. Almatari, Elena Spirina, Xiaofen Wu, Daniel E. Williams, Susan M. Pfiffner, Elizaveta M. Rivkina
FEMS MICROBIOLOGY ECOLOGY
(2020)
Article
Soil Science
E. M. Rivkina, D. G. Fedorov-Davydov, A. G. Zakharyuk, V. A. Shcherbakova, T. A. Vishnivetskaya
EURASIAN SOIL SCIENCE
(2020)
Article
Microbiology
Emily Wei-Hsin Sun, Sassan Hajirezaie, Mackenzie Dooner, Tatiana A. Vishnivetskaya, Alice Layton, Archana Chauhan, Susan M. Pfiffner, Lyle G. Whyte, Tullis C. Onstott, Maggie C. Y. Lau
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2020)
Article
Microbiology
Calvin Rusley, Tullis C. Onstott, Tatiana A. Vishnivetskaya, Alice Layton, Archana Chauhan, Susan M. Pfiffner, Lyle G. Whyte, Maggie C. Y. Lau
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2019)
Article
Microbiology
Tatiana Vishnivetskaya, Elena Spirina, Lyubov Shmakova, Maria Tutukina, Zhou Li, Xiaofen Wu, Elizaveta Rivkina
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2019)
Article
Microbiology
Elena V. Spirina, Konstantin V. Kuleshov, Alfiya K. Yunusova, Tatiana A. Vishnivetskaya, Elizaveta M. Rivkina
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2019)
Article
Geosciences, Multidisciplinary
Gleb Kraev, Elizaveta Rivkina, Tatiana Vishnivetskaya, Andrei Belonosov, Jacobus van Huissteden, Alexander Kholodov, Alexander Smirnov, Anton Kudryavtsev, Kanayim Teshebaeva, Dmitrii Zamolodchikov
Article
Microbiology
Tatiana A. Vishnivetskaya, Joy Buongiorno, Jordan Bird, Kirill Krivushin, Elena Spirina, Victoria Oshurkova, Victoria A. Shcherbakova, Gary Wilson, Karen G. Lloyd, Elizaveta M. Rivkina
FEMS MICROBIOLOGY ECOLOGY
(2018)