Articles

Microbial growth and volatile organic compound (VOC) emissions from carpet and drywall under elevated relative humidity conditions

Microbes can grow in indoor environments if moisture is available, and we need an improved understanding of how this growth contributes to emissions of microbial volatile organic compounds (mVOCs). The goal of...

Authors: Sarah R. Haines, Emma C. Hall, Katarzyna Marciniak, Pawel K. Misztal, Allen H. Goldstein, Rachel I. Adams and Karen C. Dannemiller

Active virus-host interactions at sub-freezing temperatures in Arctic peat soil

Winter carbon loss in northern ecosystems is estimated to be greater than the average growing season carbon uptake and is primarily driven by microbial decomposers. Viruses modulate microbial carbon cycling vi...

Authors: Gareth Trubl, Jeffrey A. Kimbrel, Jose Liquet-Gonzalez, Erin E. Nuccio, Peter K. Weber, Jennifer Pett-Ridge, Janet K. Jansson, Mark P. Waldrop and Steven J. Blazewicz

Biogeographic traits of dimethyl sulfide and dimethylsulfoniopropionate cycling in polar oceans

Dimethyl sulfide (DMS) is the dominant volatile organic sulfur in global oceans. The predominant source of oceanic DMS is the cleavage of dimethylsulfoniopropionate (DMSP), which can be produced by marine bact...

Authors: Zhao-Jie Teng, Qi-Long Qin, Weipeng Zhang, Jian Li, Hui-Hui Fu, Peng Wang, Musheng Lan, Guangfu Lu, Jianfeng He, Andrew McMinn, Min Wang, Xiu-Lan Chen, Yu-Zhong Zhang, Yin Chen and Chun-Yang Li

Correction to: Modeling the temporal dynamics of cervicovaginal microbiota identifies targets that may promote reproductive health

Authors: Alexander Munoz, Matthew R. Hayward, Seth M. Bloom, Muntsa Rocafort, Sinaye Ngcapu, Nomfuneko A. Mafunda, Jiawu Xu, Nondumiso Xulu, Mary Dong, Krista L. Dong, Nasreen Ismail, Thumbi Ndung’u, Musie S. Ghebremichael and Douglas S. Kwon

Charting the complexity of the activated sludge microbiome through a hybrid sequencing strategy

Long-read sequencing has shown its tremendous potential to address genome assembly challenges, e.g., achieving the first telomere-to-telomere assembly of a gapless human chromosome. However, many issues remain...

Authors: Lei Liu, Yulin Wang, Yu Yang, Depeng Wang, Suk Hang Cheng, Chunmiao Zheng and Tong Zhang

Microbial colonization and resistome dynamics in food processing environments of a newly opened pork cutting industry during 1.5 years of activity

The microorganisms that inhabit food processing environments (FPE) can strongly influence the associated food quality and safety. In particular, the possibility that FPE may act as a reservoir of antibiotic-re...

Authors: José F. Cobo-Díaz, Adrián Alvarez-Molina, Elena A. Alexa, Calum J. Walsh, Oscar Mencía-Ares, Paula Puente-Gómez, Eleni Likotrafiti, Paula Fernández-Gómez, Bernardo Prieto, Fiona Crispie, Lorena Ruiz, Montserrat González-Raurich, Mercedes López, Miguel Prieto, Paul Cotter and Avelino Alvarez-Ordóñez

A meta-analysis study of the robustness and universality of gut microbiome-metabolome associations

Microbiome-metabolome studies of the human gut have been gaining popularity in recent years, mostly due to accumulating evidence of the interplay between gut microbes, metabolites, and host health. Statistical...

Authors: Efrat Muller, Yadid M. Algavi and Elhanan Borenstein

Recovery of strain-resolved genomes from human microbiome through an integration framework of single-cell genomics and metagenomics

Obtaining high-quality (HQ) reference genomes from microbial communities is crucial for understanding the phylogeny and function of uncultured microbes in complex microbial ecosystems. Despite improvements in ...

Authors: Koji Arikawa, Keigo Ide, Masato Kogawa, Tatsuya Saeki, Takuya Yoda, Taruho Endoh, Ayumi Matsuhashi, Haruko Takeyama and Masahito Hosokawa

Integration of spatio-temporal variations of surface metabolomes and epibacterial communities highlights the importance of copper stress as a major factor shaping host-microbiota interactions within a Mediterranean seaweed holobiont

Although considered as holobionts, macroalgae and their surface microbiota share intimate interactions that are still poorly understood. Little is known on the effect of environmental parameters on the close r...

Authors: Benoît Paix, Nicolas Layglon, Christophe Le Poupon, Sébastien D’Onofrio, Benjamin Misson, Cédric Garnier, Gérald Culioli and Jean-François Briand

Development of fungal-mediated soil suppressiveness against Fusarium wilt disease via plant residue manipulation

The development of suppressive soils is a promising strategy to protect plants against soil-borne diseases in a sustainable and viable manner. The use of crop rotation and the incorporation of plant residues i...

Authors: Xianfu Yuan, Shan Hong, Wu Xiong, Waseem Raza, Zongzhuan Shen, Beibei Wang, Rong Li, Yunze Ruan, Qirong Shen and Francisco Dini-Andreote

Successional dynamics and alternative stable states in a saline activated sludge microbial community over 9 years

Microbial communities in both natural and applied settings reliably carry out myriads of functions, yet how stable these taxonomically diverse assemblages can be and what causes them to transition between stat...

Authors: Yulin Wang, Jun Ye, Feng Ju, Lei Liu, Joel A. Boyd, Yu Deng, Donovan H. Parks, Xiaotao Jiang, Xiaole Yin, Ben J. Woodcroft, Gene W. Tyson, Philip Hugenholtz, Martin F. Polz and Tong Zhang

Distinct B cell subsets in Peyer’s patches convey probiotic effects by Limosilactobacillus reuteri

Intestinal Peyer’s patches (PPs) form unique niches for bacteria-immune cell interactions that direct host immunity and shape the microbiome. Here we investigate how peroral administration of probiotic bacterium

Authors: Hao-Yu Liu, Antoine Giraud, Cedric Seignez, David Ahl, Feilong Guo, John Sedin, Tomas Walden, Jee-Hwan Oh, Jan Peter van Pijkeren, Lena Holm, Stefan Roos, Stefan Bertilsson and Mia Phillipson

Metagenomic analysis of ancient dental calculus reveals unexplored diversity of oral archaeal Methanobrevibacter

Dental calculus (mineralised dental plaque) preserves many types of microfossils and biomolecules, including microbial and host DNA, and ancient calculus are thus an important source of information regarding o...

Authors: Lena Granehäll, Kun D. Huang, Adrian Tett, Paolo Manghi, Alice Paladin, Niall O’Sullivan, Omar Rota-Stabelli, Nicola Segata, Albert Zink and Frank Maixner

Gammaproteobacteria, a core taxon in the guts of soil fauna, are potential responders to environmental concentrations of soil pollutants

The ubiquitous gut microbiotas acquired from the environment contribute to host health. The gut microbiotas of soil invertebrates are gradually assembled from the microecological region of the soil ecosystem w...

Authors: Qi Zhang, Zhenyan Zhang, Tao Lu, Yitian Yu, Josep Penuelas, Yong-Guan Zhu and Haifeng Qian

Increasing the power of interpretation for soil metaproteomics data

Soil and sediment microorganisms are highly phylogenetically diverse but are currently largely under-represented in public molecular databases. Their functional characterization by means of metaproteomics is u...

Authors: Virginie Jouffret, Guylaine Miotello, Karen Culotta, Sophie Ayrault, Olivier Pible and Jean Armengaud

Single-colony sequencing reveals microbe-by-microbiome phylosymbiosis between the cyanobacterium Microcystis and its associated bacteria

Cyanobacteria from the genus Microcystis can form large mucilaginous colonies with attached heterotrophic bacteria—their microbiome. However, the nature of the relationship between Microcystis and its microbiome ...

Authors: Olga M. Pérez-Carrascal, Nicolas Tromas, Yves Terrat, Elisa Moreno, Alessandra Giani, Laisa Corrêa Braga Marques, Nathalie Fortin and B. Jesse Shapiro

Reduced B12 uptake and increased gastrointestinal formate are associated with archaeome-mediated breath methane emission in humans

Methane is an end product of microbial fermentation in the human gastrointestinal tract. This gas is solely produced by an archaeal subpopulation of the human microbiome. Increased methane production has been ...

Authors: Christina Kumpitsch, Florian Ph. S. Fischmeister, Alexander Mahnert, Sonja Lackner, Marilena Wilding, Corina Sturm, Anna Springer, Tobias Madl, Sandra Holasek, Christoph Högenauer, Ivan A. Berg, Veronika Schoepf and Christine Moissl-Eichinger

Multi-omics reveals the positive leverage of plant secondary metabolites on the gut microbiota in a non-model mammal

Flavonoids are important plant secondary metabolites (PSMs) that have been widely used for their health-promoting effects. However, little is known about overall flavonoid metabolism and the interactive effect...

Authors: Le Wang, Guangping Huang, Rong Hou, Dunwu Qi, Qi Wu, Yonggang Nie, Zhenqiang Zuo, Rui Ma, Wenliang Zhou, Yingjie Ma, Yibo Hu, Zhisong Yang, Li Yan and Fuwen Wei

Response and oil degradation activities of a northeast Atlantic bacterial community to biogenic and synthetic surfactants

Biosurfactants are naturally derived products that play a similar role to synthetic dispersants in oil spill response but are easily biodegradable and less toxic. Using a combination of analytical chemistry, 1...

Authors: Christina N. Nikolova, Umer Zeeshan Ijaz, Clayton Magill, Sara Kleindienst, Samantha B. Joye and Tony Gutierrez

Microbial river-to-sea continuum: gradients in benthic and planktonic diversity, osmoregulation and nutrient cycling

Coastal aquatic ecosystems include chemically distinct, but highly interconnected environments. Across a freshwater-to-marine transect, aquatic communities are exposed to large variations in salinity and nutri...

Authors: Hwee Sze Tee, David Waite, Gavin Lear and Kim Marie Handley

Trophic level drives the host microbiome of soil invertebrates at a continental scale

Increasing our knowledge of soil biodiversity is fundamental to forecast changes in ecosystem functions under global change scenarios. All multicellular organisms are now known to be holobionts, containing lar...

Authors: Dong Zhu, Manuel Delgado-Baquerizo, Jing Ding, Michael R. Gillings and Yong-Guan Zhu

Commensal microbe-derived acetate suppresses NAFLD/NASH development via hepatic FFAR2 signalling in mice

Non-alcoholic liver disease (NAFLD) is the hepatic manifestation of metabolic syndrome, and it can progress to non-alcoholic steatohepatitis (NASH). Alterations in the gut microbiome have been implicated in th...

Authors: Ryo Aoki, Masayoshi Onuki, Koya Hattori, Masato Ito, Takahiro Yamada, Kohei Kamikado, Yun-Gi Kim, Nobuhiro Nakamoto, Ikuo Kimura, Julie M. Clarke, Takanori Kanai and Koji Hase

Disease-induced changes in plant microbiome assembly and functional adaptation

The plant microbiome is an integral part of the host and increasingly recognized as playing fundamental roles in plant growth and health. Increasing evidence indicates that plant rhizosphere recruits beneficia...

Authors: Min Gao, Chao Xiong, Cheng Gao, Clement K. M. Tsui, Meng-Meng Wang, Xin Zhou, Ai-Min Zhang and Lei Cai

Cooperation between host immunity and the gut bacteria is essential for helminth-evoked suppression of colitis

Studies on the inhibition of inflammation by infection with helminth parasites have, until recently, overlooked a key determinant of health: the gut microbiota. Infection with helminths evokes changes in the c...

Authors: Adam Shute, Blanca E. Callejas, ShuHua Li, Arthur Wang, Timothy S. Jayme, Christina Ohland, Ian A. Lewis, Brian T. Layden, André G. Buret and Derek M. McKay

Eicosapentaenoic and docosahexaenoic acids attenuate hyperglycemia through the microbiome-gut-organs axis in db/db mice

Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have been suggested to prevent the development of metabolic disorders. However, their individual role in treating hyperglycemia and the mechanism of a...

Authors: Pan Zhuang, Haoyu Li, Wei Jia, Qiyang Shou, Ya’er Zhu, Lei Mao, Wenqiao Wang, Fei Wu, Xiaoqian Chen, Xuzhi Wan, Yuqi Wu, Xiaohui Liu, Yin Li, Fanghuan Zhu, Lilin He, Jingnan Chen…

Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis

Alteration of the gut microbiota may contribute to the development of inflammatory bowel disease (IBD). Epigallocatechin-3-gallate (EGCG), a major bioactive constituent of green tea, is known to be beneficial ...

Authors: Zhenhua Wu, Shimeng Huang, Tiantian Li, Na Li, Dandan Han, Bing Zhang, Zhenjiang Zech Xu, Shiyi Zhang, Jiaman Pang, Shilan Wang, Guolong Zhang, Jiangchao Zhao and Junjun Wang

Gut microbiota regulation of P-glycoprotein in the intestinal epithelium in maintenance of homeostasis

P-glycoprotein (P-gp) plays a critical role in protection of the intestinal epithelia by mediating efflux of drugs/xenobiotics from the intestinal mucosa into the gut lumen. Recent studies bring to light that ...

Authors: Sage E. Foley, Christine Tuohy, Merran Dunford, Michael J. Grey, Heidi De Luca, Caitlin Cawley, Rose L. Szabady, Ana Maldonado-Contreras, Jean Marie Houghton, Doyle V. Ward, Randall J. Mrsny and Beth A. McCormick

Arms race in a cell: genomic, transcriptomic, and proteomic insights into intracellular phage–bacteria interplay in deep-sea snail holobionts

Deep-sea animals in hydrothermal vents often form endosymbioses with chemosynthetic bacteria. Endosymbionts serve essential biochemical and ecological functions, but the prokaryotic viruses (phages) that deter...

Authors: Kun Zhou, Ying Xu, Rui Zhang and Pei-Yuan Qian

Powerful and robust non-parametric association testing for microbiome data via a zero-inflated quantile approach (ZINQ)

Identification of bacterial taxa associated with diseases, exposures, and other variables of interest offers a more comprehensive understanding of the role of microbes in many conditions. However, despite cons...

Authors: Wodan Ling, Ni Zhao, Anna M. Plantinga, Lenore J. Launer, Anthony A. Fodor, Katie A. Meyer and Michael C. Wu

Human gut-derived B. longum subsp. longum strains protect against aging in a d-galactose-induced aging mouse model

Probiotics have been used to regulate the gut microbiota and physiology in various contexts, but their precise mechanisms of action remain unclear.

Authors: Yue Xiao, Chao Yang, Leilei Yu, Fengwei Tian, Yarong Wu, Jianxin Zhao, Hao Zhang, Ruifu Yang, Wei Chen, Colin Hill, Yujun Cui and Qixiao Zhai

SalmoSim: the development of a three-compartment in vitro simulator of the Atlantic salmon GI tract and associated microbial communities

The aquaculture sector now accounts for almost 50% of all fish for human consumption and is anticipated to provide 62% by 2030. Innovative strategies are being sought to improve fish feeds and feed additives t...

Authors: Raminta Kazlauskaite, Bachar Cheaib, Chloe Heys, Umer Zeeshan Ijaz, Stephanie Connelly, William Sloan, Julie Russel, Laura Rubio, John Sweetman, Alex Kitts, Philip McGinnity, Philip Lyons and Martin Llewellyn

Longitudinal study on the effects of growth-promoting and therapeutic antibiotics on the dynamics of chicken cloacal and litter microbiomes and resistomes

Therapeutic and growth-promoting antibiotics are frequently used in broiler production. Indirect evidence indicates that these practices are linked to the proliferation of antimicrobial resistance (AMR), the s...

Authors: Chhedi Lal Gupta, Shlomo E. Blum, Karuppasamy Kattusamy, Tali Daniel, Shelly Druyan, Roni Shapira, Oleg Krifucks, Yong-Guan Zhu, Xin-Yuan Zhou, Jian-Qiang Su and Eddie Cytryn

Breed differences in the expression levels of gga-miR-222a in laying hens influenced H₂S production by regulating methionine synthase genes in gut bacteria

The microbiota in the cecum of laying hens is crucial for host digestion, metabolism, and odor gas production. The results of recent studies have suggested that host microRNAs (miRNAs) can regulate gene expres...

Authors: Si-Cheng Xing, Chun-Bo Huang, Rui-Ting Wu, Yi-Wen Yang, Jing-Yuan Chen, Jian-Dui Mi, Yin-Bao Wu, Yan Wang and Xin-Di Liao

Blockage of bacterial FimH prevents mucosal inflammation associated with Crohn’s disease

An Escherichia coli (E. coli) pathotype with invasive properties, first reported by Darfeuille-Michaud and termed adherent-invasive E. coli (AIEC), was shown to be prevalent in up to half the individuals with Cro...

Authors: Grégoire Chevalier, Arnaud Laveissière, Guillaume Desachy, Nicolas Barnich, Adeline Sivignon, Marc Maresca, Cendrine Nicoletti, Eric Di Pasquale, Margarita Martinez-Medina, Kenneth William Simpson, Vijay Yajnik, Harry Sokol, Jonathan Plassais, Francesco Strozzi, Alessandra Cervino, Rachel Morra…

Prevotella copri increases fat accumulation in pigs fed with formula diets

Excessive fat accumulation of pigs is undesirable, as it severely affects economic returns in the modern pig industry. Studies in humans and mice have examined the role of the gut microbiome in host energy met...

Authors: Congying Chen, Shaoming Fang, Hong Wei, Maozhang He, Hao Fu, Xinwei Xiong, Yunyan Zhou, Jinyuan Wu, Jun Gao, Hui Yang and Lusheng Huang

The metabolic footprint of Clostridia and Erysipelotrichia reveals their role in depleting sugar alcohols in the cecum

The catabolic activity of the microbiota contributes to health by aiding in nutrition, immune education, and niche protection against pathogens. However, the nutrients consumed by common taxa within the gut mi...

Authors: Connor R. Tiffany, Jee-Yon Lee, Andrew W. L. Rogers, Erin E. Olsan, Pavel Morales, Franziska Faber and Andreas J. Bäumler

The allometry of cellular DNA and ribosomal gene content among microbes and its use for the assessment of microbiome community structure

The determination of taxon-specific composition of microbiomes by combining high-throughput sequencing of ribosomal genes with phyloinformatic analyses has become routine in microbiology and allied sciences. S...

Authors: Luis Gonzalez-de-Salceda and Ferran Garcia-Pichel

Metapangenomics reveals depth-dependent shifts in metabolic potential for the ubiquitous marine bacterial SAR324 lineage

Oceanic microbiomes play a pivotal role in the global carbon cycle and are central to the transformation and recycling of carbon and energy in the ocean’s interior. SAR324 is a ubiquitous but poorly understood...

Authors: Dominique Boeuf, John M. Eppley, Daniel R. Mende, Rex R. Malmstrom, Tanja Woyke and Edward F. DeLong

Plant developmental stage drives the differentiation in ecological role of the maize microbiome

Plants live with diverse microbial communities which profoundly affect multiple facets of host performance, but if and how host development impacts the assembly, functions and microbial interactions of crop mi...

Authors: Chao Xiong, Brajesh K. Singh, Ji-Zheng He, Yan-Lai Han, Pei-Pei Li, Li-Hua Wan, Guo-Zhong Meng, Si-Yi Liu, Jun-Tao Wang, Chuan-Fa Wu, An-Hui Ge and Li-Mei Zhang

Bog ecosystems as a playground for plant–microbe coevolution: bryophytes and vascular plants harbour functionally adapted bacteria

Bogs are unique ecosystems inhabited by distinctive, coevolved assemblages of organisms, which play a global role for carbon storage, climate stability, water quality and biodiversity. To understand ecology an...

Authors: Wisnu Adi Wicaksono, Tomislav Cernava, Christian Berg and Gabriele Berg

Bacterial colonization dynamics and antibiotic resistance gene dissemination in the hospital environment after first patient occupancy: a longitudinal metagenetic study

Humans spend the bulk of their time in indoor environments. This space is shared with an indoor ecosystem of microorganisms, which are in continuous exchange with the human inhabitants. In the particular case ...

Authors: Tilman E. Klassert, Rasmus Leistner, Cristina Zubiria-Barrera, Magdalena Stock, Mercedes López, Robert Neubert, Dominik Driesch, Petra Gastmeier and Hortense Slevogt

Correction to: Microbiomes attached to fresh perennial ryegrass are temporally resilient and adapt to changing ecological niches

Authors: Sharon A. Huws, Joan E. Edwards, Wanchang Lin, Francesco Rubino, Mark Alston, David Swarbreck, Shabhonam Caim, Pauline Rees Stevens, Justin Pachebat, Mi-Young Won, Linda B. Oyama, Christopher J. Creevey and Alison H. Kingston-Smith

Type 1 diabetes in pregnancy is associated with distinct changes in the composition and function of the gut microbiome

The gut microbiome changes in response to a range of environmental conditions, life events and disease states. Pregnancy is a natural life event that involves major physiological adaptation yet studies of the ...

Authors: Alexandra J. Roth-Schulze, Megan A. S. Penno, Katrina M. Ngui, Helena Oakey, Esther Bandala-Sanchez, Alannah D. Smith, Theo R. Allnutt, Rebecca L. Thomson, Peter J. Vuillermin, Maria E. Craig, William D. Rawlinson, Elizabeth A. Davis, Mark Harris, Georgia Soldatos, Peter G. Colman, John M. Wentworth…

Host habitat is the major determinant of the gut microbiome of fish

Our understanding of the gut microbiota of animals is largely based on studies of mammals. To better understand the evolutionary basis of symbiotic relationships between animal hosts and indigenous microbes, i...

Authors: Pil Soo Kim, Na-Ri Shin, Jae-Bong Lee, Min-Soo Kim, Tae Woong Whon, Dong-Wook Hyun, Ji-Hyun Yun, Mi-Ja Jung, Joon Yong Kim and Jin-Woo Bae

HumGut: a comprehensive human gut prokaryotic genomes collection filtered by metagenome data

A major bottleneck in the use of metagenome sequencing for human gut microbiome studies has been the lack of a comprehensive genome collection to be used as a reference database. Several recent efforts have be...

Authors: Pranvera Hiseni, Knut Rudi, Robert C. Wilson, Finn Terje Hegge and Lars Snipen

Correction to: Depletion of acetate-producing bacteria from the gut microbiota facilitates cognitive impairment through the gut-brain neural mechanism in diabetic mice

Authors: Hong Zheng, Pengtao Xu, Qiaoying Jiang, Qingqing Xu, Yafei Zheng, Junjie Yan, Hui Ji, Jie Ning, Xi Zhang, Chen Li, Limin Zhang, Yuping Li, Xiaokun Li, Weihong Song and Hongchang Gao

Modeling the temporal dynamics of cervicovaginal microbiota identifies targets that may promote reproductive health

Cervicovaginal bacterial communities composed of diverse anaerobes with low Lactobacillus abundance are associated with poor reproductive outcomes such as preterm birth, infertility, cervicitis, and risk of sexua...

Authors: Alexander Munoz, Matthew R. Hayward, Seth M. Bloom, Muntsa Rocafort, Sinaye Ngcapu, Nomfuneko A. Mafunda, Jiawu Xu, Nondumiso Xulu, Mary Dong, Krista L. Dong, Nasreen Ismail, Thumbi Ndung’u, Musie S. Ghebremichael and Douglas S. Kwon

From gut microbiota to host appetite: gut microbiota-derived metabolites as key regulators

Feelings of hunger and satiety are the key determinants for maintaining the life of humans and animals. Disturbed appetite control may disrupt the metabolic health of the host and cause various metabolic disor...

Authors: Hui Han, Bao Yi, Ruqing Zhong, Mengyu Wang, Shunfen Zhang, Jie Ma, Yulong Yin, Jie Yin, Liang Chen and Hongfu Zhang

Vibrio vulnificus induces the death of a major bacterial species in the mouse gut via cyclo-Phe-Pro

A foodborne pathogen, Vibrio vulnificus, encounters normal microflora inhabiting the gut environments prior to causing fatal septicemia or gastroenteritis and should overcome the barriers derived from the gut com...

Authors: Jeong-A Kim, Bo-Ram Jang, Yu-Ra Kim, You-Chul Jung, Kun-Soo Kim and Kyu-Ho Lee

Glacier ice archives nearly 15,000-year-old microbes and phages

Glacier ice archives information, including microbiology, that helps reveal paleoclimate histories and predict future climate change. Though glacier-ice microbes are studied using culture or amplicon approache...

Authors: Zhi-Ping Zhong, Funing Tian, Simon Roux, M. Consuelo Gazitúa, Natalie E. Solonenko, Yueh-Fen Li, Mary E. Davis, James L. Van Etten, Ellen Mosley-Thompson, Virginia I. Rich, Matthew B. Sullivan and Lonnie G. Thompson