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https://www.readbyqxmd.com/read/28731478/role-of-plant-fungal-nutrient-trading-and-host-control-in-determining-the-competitive-success-of-ectomycorrhizal-fungi
#1
Sara Hortal, Krista Lynn Plett, Jonathan Michael Plett, Tom Cresswell, Mathew Johansen, Elise Pendall, Ian Charles Anderson
Multiple ectomycorrhizal fungi (EMF) compete to colonise the roots of a host plant, but it is not known whether their success is under plant or fungal control, or a combination of both. We assessed whether plants control EMF colonisation by preferentially allocating more carbon to more beneficial partners in terms of nitrogen supply or if other factors drive competitive success. We combined stable isotope labelling and RNA-sequencing approaches to characterise nutrient exchange between the plant host Eucalyptus grandis and three Pisolithus isolates when growing alone and when competing either indirectly (with a physical barrier) or directly...
July 21, 2017: ISME Journal
https://www.readbyqxmd.com/read/28724093/persistence-of-ascaris-spp-ova-in-tropical-soil-cultivated-with-eucalyptus-and-fertilized-with-municipal-biosolids
#2
Marianne F de Faria, Iraê A Guerrini, Fernando C Oliveira, Maria Inês Z Sato, Elayse M Hachich, José Raimundo S Passos, Lívia M L Goulart, Thiago T de S Silva, José L Gava, Joel C Furches, Jason James, Robert B Harrison
In many countries, the main reason for severely restricting or outright banning the land application of class B biosolids is the lack of risk assessment for adverse human health impacts. Among pathogens that are not often studied are helminth ova, including that of the spp. Almost all of the knowledge about the persistence of spp. ova in soils fertilized with biosolids is based on studies developed in North America, Europe, and Asia. These studies have almost always been conducted under temperate climate conditions, which may cause erroneous interpretations when the conclusions are extrapolated to tropical regions such as those found in Brazil...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28721608/a-new-light-trap-model-as-an-alternative-for-controlling-pests-in-eucalyptus-plantations
#3
R G Mafia, E B Loureiro, J B Silva, J A C Simões, T G Zarpelon, N S Bezerra Junior, M B Damacena
Eucalyptus plantations can be affected by species of defoliating caterpillars. The integrated management of this group primarily involves a monitoring system, natural enemies, and biological products. Alternative control methods, including the use of conventional light traps, have not been adopted, mostly because of their low efficiency. Therefore, a more efficient light trap model was developed. The new model allowed the capture of 3.6 times as many insects as the conventional model, with a 261% gain in control efficiency...
July 18, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28712318/phylogenetic-studies-and-comparative-chloroplast-genome-analyses-elucidate-the-basal-position-of-halophyte-nitraria-sibirica-nitrariaceae-in-the-sapindales
#4
Lu Lu, Xia Li, Zhaodong Hao, Liming Yang, Jingbo Zhang, Ye Peng, Haibin Xu, Ye Lu, Jin Zhang, Jisen Shi, Jinhui Chen, Tielong Cheng
Nitraria sibirica is a halophyte and belongs to the family Nitrariaceae. The chloroplast genome of Nitraria sibirica (159,466 bp) has a quadripartite structure, which consists of a large single-copy (87,914 bp) region, a small single-copy (18,316 bp) region, and a pair of inverted repeats (26,618 bp). Sequencing analyses indicate that the chloroplast genome contains 113 distinct genes, including 79 peptide-coding genes, 30 transfer RNA genes, and 4 ribosomal RNA genes. We also identified 105 perfect simple sequence repeats, 12 most divergent non-coding regions, and 6 most divergent coding regions when compared to the chloroplast genomes of the Sapindales plants...
July 15, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28709043/improvement-effects-of-cytokinin-on-edta-assisted-phytoremediation-and-the-associated-environmental-risks
#5
Jie Luo, Limei Cai, Shihua Qi, Jian Wu, X W Sophie Gu
Soil samples containing excess Cd (0.82 mg kg(-1)), Pb (92.7 mg kg(-1)) and Cu (72.7 mg kg(-1)) relative to their corresponding safe thresholds (0.3, 80 and 50 mg kg(-1), respectively) from a notorious e-waste disposing and recycling place in southern China were phytoremediated with EDTA addition to evaluate the promotion effects of cytokinin on the remediation efficiency of Eucalyptus globulus. Biomass production of the plant, evapotranspiration amount of the soil, metals accumulation in plant organs and the volume of leachate under various treatments were compared...
July 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28693539/genomic-prediction-in-contrast-to-a-genome-wide-association-study-in-explaining-heritable-variation-of-complex-growth-traits-in-breeding-populations-of-eucalyptus
#6
Bárbara S F Müller, Leandro G Neves, Janeo E de Almeida Filho, Márcio F R Resende, Patricio R Muñoz, Paulo E T Dos Santos, Estefano Paludzyszyn Filho, Matias Kirst, Dario Grattapaglia
BACKGROUND: The advent of high-throughput genotyping technologies coupled to genomic prediction methods established a new paradigm to integrate genomics and breeding. We carried out whole-genome prediction and contrasted it to a genome-wide association study (GWAS) for growth traits in breeding populations of Eucalyptus benthamii (n =505) and Eucalyptus pellita (n =732). Both species are of increasing commercial interest for the development of germplasm adapted to environmental stresses...
July 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28691268/water-availability-affects-seasonal-co2-induced-photosynthetic-enhancement-in-herbaceous-species-in-a-periodically-dry-woodland
#7
Varsha S Pathare, Kristine Y Crous, Julia Cooke, Danielle Creek, Oula Ghannoum, David S Ellsworth
Elevated atmospheric CO2 (eCO2 ) is expected to reduce the impacts of drought and increase photosynthetic rates via two key mechanisms: first, through decreased stomatal conductance (gs ) and increased soil water content (VSWC ) and second, through increased leaf internal CO2 (Ci ) and decreased stomatal limitations (Slim ). It is unclear if such findings from temperate grassland studies similarly pertain to warmer ecosystems with periodic water deficits. We tested these mechanisms in three important C3 herbaceous species in a periodically dry Eucalyptus woodland and investigated how eCO2 -induced photosynthetic enhancement varied with seasonal water availability, over a 3 year period...
July 10, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28691021/evaluation-of-stability-and-in-vitro-security-of-nanoemulsions-containing-eucalyptus-globulus-oil
#8
Samantha Nunes de Godoi, Priscilla Maciel Quatrin, Michele Rorato Sagrillo, Kátia Nascimento, Roger Wagner, Bruna Klein, Roberto Christ Vianna Santos, Aline Ferreira Ourique
Essential oil of Eucalyptus globulus presents several pharmacological properties. However, their therapeutic efficacy may be affected by limitations due to several conditions, rendering it difficult to obtain stable and effective pharmaceutical formulations. The use of nanotechnology is an alternative to improve their characteristics aiming to ensure their stability and effectiveness. Furthermore, studies about the possible toxic effects of nanostructures are necessary to evaluate safety when the formulation comes into contact with human cells...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28687330/identification-of-peg-induced-water-stress-responsive-transcripts-using-co-expression-network-in-eucalyptus-grandis
#9
Modhumita Ghosh Dasgupta, Veeramuthu Dharanishanthi
Ecophysiological studies in Eucalyptus have shown that water is the principal factor limiting stem growth. Effect of water deficit conditions on physiological and biochemical parameters has been extensively reported in Eucalyptus. The present study was conducted to identify major polyethylene glycol induced water stress responsive transcripts in Eucalyptus grandis using gene co-expression network. A customized array representing 3359 water stress responsive genes was designed to document their expression in leaves of E...
July 4, 2017: Gene
https://www.readbyqxmd.com/read/28686690/shifts-in-the-bacterial-community-composition-along-deep-soil-profiles-in-monospecific-and-mixed-stands-of-eucalyptus-grandis-and-acacia-mangium
#10
Arthur Prudêncio de Araujo Pereira, Pedro Avelino Maia de Andrade, Daniel Bini, Ademir Durrer, Agnès Robin, Jean Pierre Bouillet, Fernando Dini Andreote, Elke Jurandy Bran Nogueira Cardoso
Our knowledge of the rhizosphere bacterial communities in deep soils and the role of Eucalyptus and Acacia on the structure of these communities remains very limited. In this study, we targeted the bacterial community along a depth profile (0 to 800 cm) and compared community structure in monospecific or mixed plantations of Acacia mangium and Eucalyptus grandis. We applied quantitative PCR (qPCR) and sequence the V6 region of the 16S rRNA gene to characterize composition of bacterial communities. We identified a decrease in bacterial abundance with soil depth, and differences in community patterns between monospecific and mixed cultivations...
2017: PloS One
https://www.readbyqxmd.com/read/28679070/microsatellite-analysis-of-population-structure-in-eucalyptus-globulus
#11
Joana Seabra Costa, René Vaillancourt, Dorothy Steane, Rebecca Jones, Cristina Marques
Eucalyptus globulus subsp. globulus Labill (Tasmanian Blue Gum), native to southeast Australia, is a benchmark species for the pulp and paper industry. We genotyped 397 trees representing 16 populations of E. globulus native diversity in Australia with 24 microsatellite loci. Eight genetically distinct groups were detected, consistent with genetic groupings detected in previous quantitative and molecular studies. A sample of 29 Portuguese individuals was added to help clarify the origin of the Portuguese landrace...
July 5, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28679066/agro-waste-biosorbents-effect-of-physico-chemical-properties-on-atrazine-and-imidacloprid-sorption
#12
Abhishek Mandal, Neera Singh, Lata Nain
Low cost agro-waste biosorbents namely eucalyptus bark (EB), corn cob (CC), bamboo chips (BC), rice straw (RS) and rice husk (RH) were characterized and used to study atrazine and imidacloprid sorption. Adsorption studies suggested that biosorbents greatly varied in their pesticide sorption behaviour. The EB was the best biosorbent to sorb both atrazine and imidacloprid with KF values of 169.9 and 85.71, respectively. The adsorption isotherm were nonlinear in nature with slope (1/n) values <1. The Freundlich constant Correlating atrazine/imidacloprid sorption parameter [KF...
July 5, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28667472/erratum-to-combined-effect-of-pulse-density-and-grid-cell-size-on-predicting-and-mapping-aboveground-carbon-in-fast-growing-eucalyptus-forest-plantation-using-airborne-lidar-data
#13
Carlos Alberto Silva, Andrew Thomas Hudak, Carine Klauberg, Lee Alexandre Vierling, Carlos Gonzalez-Benecke, Samuel de Padua Chaves Carvalho, Luiz Carlos Estraviz Rodriguez, Adrián Cardil
No abstract text is available yet for this article.
December 2017: Carbon Balance and Management
https://www.readbyqxmd.com/read/28666017/potential-of-eucalyptus-camaldulensis-for-phytostabilization-and-biomonitoring-of-trace-element-contaminated-soils
#14
Paula Madejón, Teodoro Marañón, Carmen M Navarro-Fernández, María T Domínguez, José M Alegre, Brett Robinson, José M Murillo
Soil pollution by trace elements (TEs) from mining and industrial activity is widespread and presents a risk to humans and ecosystems. The use of trees to immobilize TEs (phytostabilization) is a low-cost and effective method of soil remediation. We aimed to determine the chemical composition of leaves and flower buds of Eucalyptus camaldulensis in seven sites along the Guadiamar River valley (SW Spain), an area contaminated by a mine-spill in 1998. E. camaldulensis trees in the spill-affected area and adjacent non affected areas were growing on a variety of soils with pH from 5...
2017: PloS One
https://www.readbyqxmd.com/read/28664534/does-triacylglycerol-tag-serve-a-photoprotective-function-in-plant-leaves-an-examination-of-leaf-lipids-under-shading-and-drought
#15
Renée M Marchin, Tarryn L Turnbull, Audrey I Deheinzelin, Mark A Adams
Plant survival in many ecosystems requires tolerance of large radiation loads, unreliable water supply, and suboptimal soil fertility. We hypothesized that increased production of neutral lipids (triacylglycerols, TAGs) in plant leaves is a mechanism for dissipating excess radiation energy. In a greenhouse experiment, we combined drought and shade treatments and examined responses among four species differing in life form, habitat, and drought- and shade-tolerance. We also present a lipid extraction protocol suitable for sclerophyllous leaves of native Australian trees (e...
June 29, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28662679/evaluating-the-accuracy-of-genomic-prediction-of-growth-and-wood-traits-in-two-eucalyptus-species-and-their-f1-hybrids
#16
Biyue Tan, Dario Grattapaglia, Gustavo Salgado Martins, Karina Zamprogno Ferreira, Björn Sundberg, Pär K Ingvarsson
BACKGROUND: Genomic prediction is a genomics assisted breeding methodology that can increase genetic gains by accelerating the breeding cycle and potentially improving the accuracy of breeding values. In this study, we use 41,304 informative SNPs genotyped in a Eucalyptus breeding population involving 90 E.grandis and 78 E.urophylla parents and their 949 F1 hybrids to develop genomic prediction models for eight phenotypic traits - basic density and pulp yield, circumference at breast height and height and tree volume scored at age three and six years...
June 29, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28654223/the-pomegranate-punica-granatum-l-genome-and-the-genomics-of-punicalagin-biosynthesis
#17
Gaihua Qin, Chunyan Xu, Ray Ming, Haibao Tang, Romain Guyot, Elena M Kramer, Yudong Hu, Xingkai Yi, Yongjie Qi, Xiangyang Xu, Zhenghui Gao, Haifa Pan, Jianbo Jian, Yinping Tian, Zhen Yue, Yiliu Xu
Pomegranate (Punica granatum L.) is a perennial fruit crop grown since ancient times that has been planted worldwide and is known for its functional metabolites, particularly punicalagins. We have sequenced and assembled the pomegranate genome with 328 Mb anchored into nine pseudo-chromosomes and annotated 29 229 gene models. A Myrtales lineage-specific whole-genome duplication (WGD) event was detected that occurred in the common ancestor before the divergence of pomegranate and Eucalyptus. Repetitive sequences accounted for 46...
June 27, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28652863/stimulation-and-inhibition-of-enzymatic-hydrolysis-by-organosolv-lignins-as-determined-by-zeta-potential-and-hydrophobicity
#18
Yang Huang, Shaolong Sun, Chen Huang, Qiang Yong, Thomas Elder, Maobing Tu
BACKGROUND: Lignin typically inhibits enzymatic hydrolysis of cellulosic biomass, but certain organosolv lignins or lignosulfonates enhance enzymatic hydrolysis. The hydrophobic and electrostatic interactions between lignin and cellulases play critical roles in the enzymatic hydrolysis process. However, how to incorporate these two interactions into the consideration of lignin effects has not been investigated. RESULTS: We examined the physicochemical properties and the structures of ethanol organosolv lignins (EOL) from hardwood and softwood and ascertained the association between lignin properties and their inhibitory and stimulatory effects on enzymatic hydrolysis...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28652153/antimicrobial-electrospun-ultrafine-fibers-from-zein-containing-eucalyptus-essential-oil-cyclodextrin-inclusion-complex
#19
Mariana Dias Antunes, Guilherme da Silva Dannenberg, Ângela Maria Fiorentini, Vânia Zanella Pinto, Loong-Tak Lim, Elessandra da Rosa Zavareze, Alvaro Renato Guerra Dias
The aim of this study was to produce ultrafine fibers from zein incorporated with a complex of eucalyptus essential oil (EEO) and β-cyclodextrin (β-CD) with antimicrobial properties by electrospinning technique. The EEO was characterized by chemical composition and antimicrobial tests against three Gram positive and four Gram negative bacteria. The inclusion complex (IC) was prepared with β-CD and EEO by co-precipitation technique and added at different concentrations in zein polymer solution using aqueous ethanol as solvent...
June 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28640755/chemical-composition-and-biological-activities-of-leaf-and-fruit-essential-oils-from-eucalyptus-camaldulensis
#20
Gulden Dogan, Nazan Kara, Eyup Bagci, Seher Gur
The chemical composition of the essential oils from the leaves and fruit of Eucalyptus camaldulensis grown in Mersin, Turkey was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) techniques. The biological activities (antibacterial and antifungal) were examined using the agar well diffusion method. The main leaf oil constituents were p-cymene (42.1%), eucalyptol (1,8-cineole) (14.1%), α-pinene (12.7%) and α-terpinol (10.7%). The main constituents of the fruit oil were eucalyptol (1,8-cineole) (34...
June 22, 2017: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
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