Insect-Mediated Nitrogen Dynamics in Decomposing Wood
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Methanotrophs Are Core Members of the Diazotroph Community in Decaying T Norway Spruce Logs
Soil Biology and Biochemistry 120 (2018) 230–232 Contents lists available at ScienceDirect Soil Biology and Biochemistry journal homepage: www.elsevier.com/locate/soilbio Short Communication Methanotrophs are core members of the diazotroph community in decaying T Norway spruce logs ∗ Raisa Mäkipääa, , Sanna M. Leppänena, Sonia Sanz Munoza, Aino Smolandera, Marja Tiirolab, Tero Tuomivirtaa, Hannu Fritzea a Natural Resources Institute Finland, Finland b University of Jyväskylä, Finland ARTICLE INFO ABSTRACT Keywords: Dead wood is initially a nitrogen (N) poor substrate, where the N content increases with decay, partly due to fi Asymbiotic nitrogen xation biological N2 fixation, but the drivers of the N accumulation are poorly known. We quantified the rate of N2 Coarse woody debris fixation in decaying Norway spruce logs of different decay stages and studied the potential regulators of the N2- − − Dead wood fixation activity. The average rate for acetylene reduction in the decaying wood was 7.5 nmol ethylene g 1d 1, nifH − − − which corresponds to 52.9 μgN kg 1d 1. The number of nifH copies (g 1 dry matter) was higher at the later Picea abies decay stages, but no correlation between the copy number and the in vitro N2 fixation rate was found. All recovered nifH sequences were assigned to the order Rhizobiales, and therein mostly (60%) to methane oxidizing genera. We confirm that nitrogen fixing methanotrophs are present in all the wood decay phases and suggest that their interaction between methane producing organisms in decaying wood should be further studied. In boreal forests with nitrogen (N) supply deficiency, asymbiotic N2 (Karst)) logs (using four replicates per sample log) followed the fixation occurs in the dead wood (Brunner and Kimmins, 2003; Hicks methods described in Rinne et al. -
Treatise on the Isoptera of the World Kumar
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by American Museum of Natural History Scientific Publications KRISHNA ET AL.: ISOPTERA OF THE WORLD: 7. REFERENCES AND INDEX7. TREATISE ON THE ISOPTERA OF THE WORLD 7. REFERENCES AND INDEX KUMAR KRISHNA, DAVID A. GRIMALDI, VALERIE KRISHNA, AND MICHAEL S. ENGEL A MNH BULLETIN (7) 377 2 013 BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY TREATISE ON THE ISOPTERA OF THE WORLD VolUME 7 REFERENCES AND INDEX KUMAR KRISHNA, DAVID A. GRIMALDI, VALERIE KRISHNA Division of Invertebrate Zoology, American Museum of Natural History Central Park West at 79th Street, New York, New York 10024-5192 AND MICHAEL S. ENGEL Division of Invertebrate Zoology, American Museum of Natural History Central Park West at 79th Street, New York, New York 10024-5192; Division of Entomology (Paleoentomology), Natural History Museum and Department of Ecology and Evolutionary Biology 1501 Crestline Drive, Suite 140 University of Kansas, Lawrence, Kansas 66045 BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY Number 377, 2704 pp., 70 figures, 14 tables Issued April 25, 2013 Copyright © American Museum of Natural History 2013 ISSN 0003-0090 2013 Krishna ET AL.: ISOPtera 2435 CS ONTENT VOLUME 1 Abstract...................................................................... 5 Introduction.................................................................. 7 Acknowledgments . 9 A Brief History of Termite Systematics ........................................... 11 Morphology . 44 Key to the -
Taxonomy, Biogeography, and Notes on Termites (Isoptera: Kalotermitidae, Rhinotermitidae, Termitidae) of the Bahamas and Turks and Caicos Islands
SYSTEMATICS Taxonomy, Biogeography, and Notes on Termites (Isoptera: Kalotermitidae, Rhinotermitidae, Termitidae) of the Bahamas and Turks and Caicos Islands RUDOLF H. SCHEFFRAHN,1 JAN KRˇ ECˇ EK,1 JAMES A. CHASE,2 BOUDANATH MAHARAJH,1 3 AND JOHN R. MANGOLD Ann. Entomol. Soc. Am. 99(3): 463Ð486 (2006) ABSTRACT Termite surveys of 33 islands of the Bahamas and Turks and Caicos (BATC) archipelago yielded 3,533 colony samples from 593 sites. Twenty-seven species from three families and 12 genera were recorded as follows: Cryptotermes brevis (Walker), Cr. cavifrons Banks, Cr. cymatofrons Schef- Downloaded from frahn and Krˇecˇek, Cr. bracketti n. sp., Incisitermes bequaerti (Snyder), I. incisus (Silvestri), I. milleri (Emerson), I. rhyzophorae Herna´ndez, I. schwarzi (Banks), I. snyderi (Light), Neotermes castaneus (Burmeister), Ne. jouteli (Banks), Ne. luykxi Nickle and Collins, Ne. mona Banks, Procryptotermes corniceps (Snyder), and Pr. hesperus Scheffrahn and Krˇecˇek (Kalotermitidae); Coptotermes gestroi Wasmann, Heterotermes cardini (Snyder), H. sp., Prorhinotermes simplex Hagen, and Reticulitermes flavipes Koller (Rhinotermitidae); and Anoplotermes bahamensis n. sp., A. inopinatus n. sp., Nasuti- termes corniger (Motschulsky), Na. rippertii Rambur, Parvitermes brooksi (Snyder), and Termes http://aesa.oxfordjournals.org/ hispaniolae Banks (Termitidae). Of these species, three species are known only from the Bahamas, whereas 22 have larger regional indigenous ranges that include Cuba, Florida, or Hispaniola and beyond. Recent exotic immigrations for two of the regional indigenous species cannot be excluded. Three species are nonindigenous pests of known recent immigration. IdentiÞcation keys based on the soldier (or soldierless worker) and the winged imago are provided along with species distributions by island. Cr. bracketti, known only from San Salvador Island, Bahamas, is described from the soldier and imago. -
Sociobiology 65(2): 291-298 (June, 2018) DOI: 10.13102/Sociobiology.V65i2.2844
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Portal de Periódicos Eletrônicos da Universidade Estadual de Feira de Santana (UEFS) Sociobiology 65(2): 291-298 (June, 2018) DOI: 10.13102/sociobiology.v65i2.2844 Sociobiology An international journal on social insects RESEARCH ARTICLE - TERMITES Influence of Food Resource Size on the Foraging Behavior of Nasutitermes corniger (Motschulsky) TS Souza1, VS Gazal1,2, VJ Fernandes1, ACC Oliveira3, EL Aguiar-Menezes1,2 1 - Programa de Pós-Graduação em Fitossanidade e Biotecnologia Aplicada, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropédica-RJ, Brazil 2 - Departamento Entomologia e Fitopatologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropédica-RJ, Brazil 3 - Graduação em Agronomia, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropédica-RJ, Brazil Article History Abstract In general, termite foraging can be affected by physical and chemical factors Edited by linked to food. This study investigated if the wood length of Eucalyptus grandis Alexandre Vasconcellos, UFPB, Brazil Received 11 January 2018 W. Hill ex Maiden, as a food resource, influences the behavior of foraging events Initial acceptance 19 March 2018 of Nasutitermes corniger (Motschulsky). Nests with mature and active colonies Final acceptance 04 April 2018 were collected in the field and transferred to glass cubes connected to a test Publication date 09 July 2018 arena under laboratory conditions. Wooden blocks ofE. grandis, with a 2.5 x 2.0 cm rectangular cross section, were offered to termites in three different lengths: Keywords Arboreal termites, Nasutitermitinae, 5, 10 and 15 cm. -
Effect of Increased Soil Moisture and Reduced Soil Temperature on a Desert Soil Arthropod Community
Effect of Increased Soil Moisture and Reduced Soil Temperature on a Desert Soil Arthropod Community WILLIAM P. MACKAY, SOLANGE SILVA, DAVID C. LIGHTFOOT, MARIA INEZ PAGANI and WALTER G. WHITFORD' Department of Biology, Box 3AFJ New Mexico State University, Las Cruces 88003 ABSTRACT: The effects of soil moisture and temperature on arthropod communi- ties were experimentally examined in the northern Chihuahuan Desert of New Mex- ico. Shaded plots were established which lowered the soil temperature several degrees; some plots received artificial rainfall to increase soil moisture. Shading reduced soil temperature at 5-cm depth 7-10 C. Soil moisture at 5 cm accounted for most of the variation in surface activity of subterranean termites (r values between 0.3 and 0.7). Termites did not respond to temperature differences. When all soils were at field capacity, there was no difference in termite activity in shaded and unshaded plots. There were higher densities of mi- croarthropods in litter bags on the shaded plots than on the unshaded plots. Numbers of microarthropods were an order of magnitude larger in litter bags on watered and shaded plots than on other plots. Lower litter temperatures apparently affect litter ar- thropods more than increased soil moisture. Shade had no effect on ant colonies but there were fewer colonies on the watered plots. There was between 40 to 50% mass loss from creosotebush leaf litter after 7 months on all plots. Water and soil temperature had no effect on decomposition rates. INTRODUCTION Temperature extremes and water availability are considered to be the most impor- tant factors limiting production, activity of desert organisms and ecosystem processes in deserts (Noy-Meir, 1973, 1974; Whitford et al., 1981, Whitford et al., 1983). -
Diversity of Free-Living Nitrogen Fixing Bacteria in the Badlands of South Dakota Bibha Dahal South Dakota State University
South Dakota State University Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange Theses and Dissertations 2016 Diversity of Free-living Nitrogen Fixing Bacteria in the Badlands of South Dakota Bibha Dahal South Dakota State University Follow this and additional works at: http://openprairie.sdstate.edu/etd Part of the Bacteriology Commons, and the Environmental Microbiology and Microbial Ecology Commons Recommended Citation Dahal, Bibha, "Diversity of Free-living Nitrogen Fixing Bacteria in the Badlands of South Dakota" (2016). Theses and Dissertations. 688. http://openprairie.sdstate.edu/etd/688 This Thesis - Open Access is brought to you for free and open access by Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange. For more information, please contact [email protected]. DIVERSITY OF FREE-LIVING NITROGEN FIXING BACTERIA IN THE BADLANDS OF SOUTH DAKOTA BY BIBHA DAHAL A thesis submitted in partial fulfillment of the requirements for the Master of Science Major in Biological Sciences Specialization in Microbiology South Dakota State University 2016 iii ACKNOWLEDGEMENTS “Always aim for the moon, even if you miss, you’ll land among the stars”.- W. Clement Stone I would like to express my profuse gratitude and heartfelt appreciation to my advisor Dr. Volker Brӧzel for providing me a rewarding place to foster my career as a scientist. I am thankful for his implicit encouragement, guidance, and support throughout my research. This research would not be successful without his guidance and inspiration. -
Formate Dehydrogenese Gene Phylogeny in Higher Termites
3-1 Formate dehydrogenese gene phylogeny in higher termites suggests gut microbial communities have undergone an evolutionary bottleneck, convergent evolution, and invasion Abstract The majority of termites and termite species on the planet belong to the phylogenetically ‘higher’ termite family Termitidae. Higher termites thrive on diverse lignocellulosic substrates with the aid of symbiotic gut microbiota. H2 consuming CO2 reductive acetogenic bacteria are an important group of symbionts that produce a significant fraction of the acetate used by their insect host as its primary carbon and energy source. A recent metagenomic analysis of the hindgut paunch bacterial community of a wood- feeding higher termite suggested spirochetes are the dominant acetogens in higher termites, as they appear to be in phylogenetically lower termites. However, a certain genetic feature of actogenesis in higher termites was not resolved. Genes for hydrogenase-linked formate dehydrogenase (FDHH), an enzyme implicated in H2 turnover and CO2 fixing capacities of a termite gut acetogenic spirochete isolate and many uncultured lower termite gut acetogens, were notably depleted with respect to abundance and diversity relative to other acetogenesis genes in the metagenome and the gut communities of lower termites. Here, we use FDHH primers to determine whether higher termite gut communities are as poor in FDHH genes as previous data suggest. We 3-2 report that each and every FDHH gene inventory generated from the whole gut communities of 8 species of taxonomically and nutritionally diverse higher termites (subfamilies Nasutitermitinae and Termitinae) was considerably more diverse than the metagenomic data set (4-15 phylotypes versus 1 phylotype), indicating the near absence of FDHH genes in the metagenomic data set may result from artifacts of sampling or methodology. -
Nutrional Ecology in Social Insects
NUTRIONAL ECOLOGY IN SOCIAL INSECTS Laure-Anne Poissonnier Thesis submitted the 16th of July 2018 for the degree of Doctor of Philosophy Department of Agricultural Science School of Agriculture, Food and Wine Faculty of Sciences, The University of Adelaide Supervisors: Jerome Buhl and Audrey Dussutour “If all mankind were to disappear, the world would regenerate back to the rich state of equilibrium that existed ten thousand years ago. If insects were to vanish, the environment would collapse into chaos.” E.O.Wilson Table of Contents Tables of contents i Abstract v Declaration vii Acknowledgements ix Statements of authorship x Chapter 1 – General introduction 1 1. Nutrition is a complex process that influences and links all living organisms 3 2. Towards an integrative approach to study nutrition, the Nutritional Geometric Framework 4 2.a. Nutrient regulation 5 2.b. Nutrient effects on life history traits and feeding rules 8 3. Nutrition and sociality 10 3.a. Nutrition and immunity in social insects 12 3.a. Humoral and cellular defence against pathogens in insects 13 3.b Behavioural strategies used by social insects to fight parasites 14 3.c Physiological strategies used by social insects to fight parasites 16 3.d Role of nutrition in insects’ immunity 16 4. Nutrition in insect colonies 18 4.a. Self-organisation and foraging in social insects 19 4.b. Ending mass recruitment 21 4.c. Modulating recruitment according to food quality 22 4.d. Information exchange and food sharing between castes 23 4.e. Distribution of nutrients in the colony 25 4.f. The insight brought by NGF studies in social insect nutrition 29 5. -
Fine Scale Sampling Unveils Diazotroph Patchiness in the South
bioRxiv preprint doi: https://doi.org/10.1101/2020.10.02.323808; this version posted October 2, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Fine scale sampling unveils diazotroph patchiness in the South Pacific Ocean 2 3 Running title: Fine scale diazotroph distribution 4 5 1,*Mar Benavides, 1Louis Conradt, 1Sophie Bonnet, 2Ilana Berman-Frank, 1Stéphanie 6 Barrillon, 1Anne Petrenko, 1Andrea M. Doglioli 7 8 1Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM 110, 13288, Marseille, 9 France 10 2Leon H. Charney School of Marine Sciences, University of Haifa, Mt. Carmel, Haifa 11 3498838, Israel 12 13 *Corresponding author: Mar Benavides [email protected] 14 15 Abstract 16 17 Diazotrophs are important contributors to reactive nitrogen availability in the ocean. 18 Oceanographic cruise data accumulated along decades has revealed a heterogeneous 19 distribution of diazotroph species at regional to global scales. However, the role of dynamic 20 fine scale structures in distributing diazotrophs is not well understood. This is due to typical 21 insufficient spatiotemporal resolution sampling and the lack of detailed physical studies in 22 parallel. Here We show the distribution of five groups of diazotrophs in the South Pacific at 23 an unprecedented resolution of 7-16 km. We find a patchy distribution of diazotrophs, With 24 each group being differently affected by parameters describing fine scale structures. The 25 observed variability could not have been revealed with a loWer resolution sampling, 26 highlighting the need to consider fine scale physics to resolve the distribution of diazotrophs 27 in the ocean. -
Structure, Function and Evolution of the Labral and Frontal Glands in Termites Valeria Danae Palma Onetto
Structure, function and evolution of the labral and frontal glands in termites Valeria Danae Palma Onetto To cite this version: Valeria Danae Palma Onetto. Structure, function and evolution of the labral and frontal glands in termites. Populations and Evolution [q-bio.PE]. Université Sorbonne Paris Cité, 2019. English. NNT : 2019USPCD027. tel-03033808 HAL Id: tel-03033808 https://tel.archives-ouvertes.fr/tel-03033808 Submitted on 1 Dec 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. UNIVERSITÉ PARIS 13, SORBONNE PARIS CITÉ ECOLE DOCTORALE GALILEÉ THESE présentée pour l’obtention du grade de DOCTEUR DE L’UNIVERSITE PARIS 13 Spécialité: Ethologie Structure, function and evolution Defensiveof the labral exocrine and glandsfrontal glandsin termites in termites Présentée par Valeria Palma–Onetto Sous la direction de: David Sillam–Dussès et Jan Šobotník Soutenue publiquement le 28 janvier 2019 JURY Maria Cristina Lorenzi Professeur, Université Paris 13 Présidente du jury Renate Radek Professeur, Université Libre de Berlin Rapporteur Yves Roisin Professeur, -
Phylogeny of Nitrogenase Structural and Assembly Components Reveals New Insights Into the Origin and Distribution of Nitrogen Fixation Across Bacteria and Archaea
microorganisms Article Phylogeny of Nitrogenase Structural and Assembly Components Reveals New Insights into the Origin and Distribution of Nitrogen Fixation across Bacteria and Archaea Amrit Koirala 1 and Volker S. Brözel 1,2,* 1 Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57006, USA; [email protected] 2 Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria 0004, South Africa * Correspondence: [email protected]; Tel.: +1-605-688-6144 Abstract: The phylogeny of nitrogenase has only been analyzed using the structural proteins NifHDK. As nifHDKENB has been established as the minimum number of genes necessary for in silico predic- tion of diazotrophy, we present an updated phylogeny of diazotrophs using both structural (NifHDK) and cofactor assembly proteins (NifENB). Annotated Nif sequences were obtained from InterPro from 963 culture-derived genomes. Nif sequences were aligned individually and concatenated to form one NifHDKENB sequence. Phylogenies obtained using PhyML, FastTree, RapidNJ, and ASTRAL from individuals and concatenated protein sequences were compared and analyzed. All six genes were found across the Actinobacteria, Aquificae, Bacteroidetes, Chlorobi, Chloroflexi, Cyanobacteria, Deferribacteres, Firmicutes, Fusobacteria, Nitrospira, Proteobacteria, PVC group, and Spirochaetes, as well as the Euryarchaeota. The phylogenies of individual Nif proteins were very similar to the overall NifHDKENB phylogeny, indicating the assembly proteins have evolved together. Our higher resolution database upheld the three cluster phylogeny, but revealed undocu- Citation: Koirala, A.; Brözel, V.S. mented horizontal gene transfers across phyla. Only 48% of the 325 genera containing all six nif genes Phylogeny of Nitrogenase Structural and Assembly Components Reveals are currently supported by biochemical evidence of diazotrophy. -
Interactions Among Soil Biology, Nutrition, and Performance of Actinorhizal Plant Species in the H.J
'I 'l I Applied Soil Ecology ELSEVIER Applied Soil Ecology 19 (2002) 13-26 www.elsevier com/Iocate/apsoll Interactions among soil biology, nutrition, and performance of actinorhizal plant species in the H.J. Andrews Experimental Forest of Oregon N.S. Rojas a, D.A. Perry b, C.Y. Li c'*, L.M. Ganio d a 118 Trail East St, Hendersonvtlle, TN37075, USA b Box 8, Papa 'au, HI 96755, USA c USDA Forest Service, PacificNorthwest Research Station, Forestry. Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, 0R97331, USA d Department of Forest Science, Oregon State Umversit3 Corvalhs, OR 97331, USA Received 2 July 2001 ; accepted 7 August 2091 Abstract The study examined the effect ofFrankia, macronutrients, micronutrients, mycorrhizal fungi, and plant-growth-promoting fluorescent Pseudomonas sp. on total biomass, nodule weight, and nitrogen fixation of red aider (Alnus rubra) and snowbrush (Ceanothus velutinus) under greenhouse conditions. The soil samples were collected from a 10-year-old clearcut on the H.J. Andrews Experimental Forest, Oregon. Within the clearcut, four sampling points were selected along a slope gradient. Red alder and snowbrush plants were greenhouse-grown in a mix of sod-vermiculite-perlite (2:1:1) for 6 and 12 months, respectively. Plants were inoculated with Frankia and a fluorescent Pseudomonas sp. Some of the red alder were also inoculated with ectomycorrhlzal Alpova diplophloeus, and some snowbrush with endomycorrhizal Glomus intraradix. There was no interaction between treatment and slope location for either species. There were significant treatment effects for red alder, but not for snowbmsh. Red alder seedlings given Frankia and macronutrients produced more biomass and had greater nitrogen fixation than seedlings grown without addtttons; adding A.