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https://www.readbyqxmd.com/read/28340454/pea-cultivar-and-wheat-residues-affect-carbon-nitrogen-dynamics-in-pea-triticale-intercropping-a-microcosms-approach
#1
Antonella Scalise, Valentini A Pappa, Antonio Gelsomino, Robert M Rees
The underlying mechanisms by which legume cultivars contribute to nitrous oxide (N2O) generation are poorly understood. The aim of the present study was to explore the effects of two pea cultivars (Zero4 and Nitouche) intercropped with triticale, with or without wheat (Triticum aestivum) residues incorporation, on soil C and N dynamics, on bacterial community structure and their links with N2O emissions. Monocrops and bare soil (no plant) treatments were used as an additional control in order to account for the level of mineralisation between treatments...
March 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340387/an-exploration-of-the-effect-and-interaction-mechanism-of-bisphenol-a-on-waste-sludge-hydrolysis-with-multi-spectra-isothermal-titration-microcalorimetry-and-molecule-docking
#2
Guangying Hou, Rui Zhang, Xiaoyan Hao, Chunguang Liu
An increasing amount of bisphenol A (BPA) is being produced and used, then discharged into sewage treatment plants and accumulated in sludge or soil, when the sludge is used as fertilizer. Accumulation of BPA in sludge or soil causes poisoning to the enzyme, which affects the biological treatment of sludge and the circulation and conversion of materials in soil. In this research, effect of BPA on sludge hydrolysis is studied from the respect of concentration and components of soluble organic matter in sludge, using three-dimensional fluorescence spectra...
March 10, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28340276/multivariate-diallel-analysis-allows-multiple-gains-in-segregating-populations-for-agronomic-traits-in-jatropha
#3
P E Teodoro, E V Rodrigues, L A Peixoto, L A Silva, B G Laviola, L L Bhering
Jatropha is research target worldwide aimed at large-scale oil production for biodiesel and bio-kerosene. Its production potential is among 1200 and 1500 kg/ha of oil after the 4th year. This study aimed to estimate combining ability of Jatropha genotypes by multivariate diallel analysis to select parents and crosses that allow gains in important agronomic traits. We performed crosses in diallel complete genetic design (3 x 3) arranged in blocks with five replications and three plants per plot. The following traits were evaluated: plant height, stem diameter, canopy projection between rows, canopy projection on the line, number of branches, mass of hundred grains, and grain yield...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28340270/genetic-progress-estimation-strategy-for-upright-common-bean-plants-using-recurrent-selection
#4
L A Pereira, A F B Abreu, I C Vieira Júnior, L P M Pires, M A P Ramalho
Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in generation S0. The aim of the present study was to evaluate selection progress and investigate whether this progress varies with the number of selected progenies or the generation evaluated...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28340266/rna-seq-based-transcriptome-and-the-reproduction-related-genes-for-the-aphid-schlechtendalia-chinensis-hemiptera-aphididae
#5
P Liu, Z X Yang, X M Chen, P Yang
Chinese galls form on sumac plants (Rhus chinensis) and are used for medicinal and chemical purposes, due to their richness in tannins. The galls are formed by aphids, the most prominent of which is Schlechtendalia chinensis, which forms horn-shaped galls on the winged rachis of R. chinensis. S. chinensis has a complex life cycle, including both R. chinensis and certain mosses as hosts, as well as the existence of both sexual and asexual reproduction (cyclical parthenogenesis). Previous studies have shown that the alternate occurrence of sexual and asexual reproduction relies on many environmental factors, such as temperature, photoperiod, and host-plant...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28340089/how-embryophytic-is-the-biosynthesis-of-phenylpropanoids-and-their-derivatives-in-streptophyte-algae
#6
Jan de Vries, Sophie de Vries, Claudio H Slamovits, Laura E Rose, John M Archibald
The origin of land plants from algae is a long-standing question in evolutionary biology. It is becoming increasingly clear that many characters that were once assumed to be "embryophyte-specific" can in fact be found in their closest algal relatives, the streptophyte algae. One such case is the phenylpropanoid pathway. While biochemical data indicate that streptophyte algae harbor lignin-like components, the phenylpropanoid core pathway, which serves as the backbone of lignin biosynthesis, has been proposed to have arisen at the base of the land plants...
March 13, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339743/application-of-bacteriophages-to-reduce-salmonella-attachment-and-biofilms-on-hard-surfaces
#7
Chao Gong, Xiuping Jiang
This study evaluated the effectiveness of bacteriophage treatment for reducing Salmonella attachment and biofilms on hard surfaces. Bacteriophages (n = 6) were selected for bacteriophage treatment based on host ranges against Salmonella isolates (n = 10) obtained from rendering plants. The effectiveness of bacteriophage treatment (104-108 PFU/mL) was initially evaluated against strong Salmonella biofilm formers in 96-well microplate. Then, the bacteriophage treatment (109 PFU/mL) was applied for 7 d to reduce Salmonella attached to the stainless steel surfaces under laboratory and greenhouse conditions...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28334656/lipid-profiling-in-sewage-sludge
#8
Fenfen Zhu, Xuemin Wu, Luyao Zhao, Xiaohui Liu, Juanjuan Qi, Xueying Wang, Jiawei Wang
High value-added reutilization of sewage sludge from wastewater treatment plants (WWTPs) is essential in sustainable development in WWTPs. However, despite the advantage of high value reutilization, this process must be based on a detailed study of organics in sludge. We used the methods employed in life sciences to determine the profile of lipids (cellular lipids, free fatty acids (FFAs), and wax/gum) in five sludge samples obtained from three typical WWTPs in Beijing; these samples include one sludge sample from a primary sedimentation tank, two activated sludge samples from two Anaerobic-Anoxic-Oxic (A2/O) tanks, and two activated sludge samples from two membrane bioreactor tanks...
March 20, 2017: Water Research
https://www.readbyqxmd.com/read/28334322/evaluation-of-food-lures-for-capture-and-monitoring-of-anastrepha-fraterculus-diptera-tephritidae-on-temperate-fruit-trees
#9
J M da Rosa, C J Arioli, J P Dos Santos, A C Menezes-Netto, M Botton
The Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) is the main pest of fruit trees grown in temperate climates in the southern region of Brazil. The objective of this work was to evaluate the efficiency of the major commercial food lures used in Brazil for trapping and monitoring of A. fraterculus in plum, pear, and feijoa orchards. The assessed lures were hydrolyzed proteins of animal origin (CeraTrap) and plant origin (BioAnastrepha), torula yeast + borax (Torula), and grape juice. Response variables included the rate of adult capture (flies per trap per day, FTD) and the percentage of females captured...
March 16, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334304/livestock-grazing-shapes-the-vegetation-structure-and-subsequent-habitat-use-by-the-endangered-skipper-pyrgus-ruralis-lagunae-lepidoptera-hesperiidae
#10
Daniel A Marschalek, David K Faulkner, Douglas H Deutschman
Many species adapted to alpine and montane meadow ecosystems are at risk of extinction. The skipper Pyrgus ruralis lagunae Scott is a mountaintop butterfly restricted to San Diego County, CA, a federally listed endangered species, and is in imminent risk of extinction. Historically, P. r. lagunae was found in the Laguna and Palomar mountains. We did not detect the skipper in the Laguna Mountains, and the species has likely been extirpated from this area, which represents half of its historical range and is the type locality...
March 18, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28334275/identification-of-a-novel-bzip-transcription-factor-in-camellia-sinensis-as-a-negative-regulator-of-freezing-tolerance-in-transgenic-arabidopsis
#11
Lu Wang, Hongli Cao, Wenjun Qian, Lina Yao, Xinyuan Hao, Nana Li, Yajun Yang, Xinchao Wang
Background and Aims: Basic region/leucine zipper (bZIP) transcription factors play vital roles in the abiotic stress response of plants. However, little is known about the function of bZIP genes in Camellia sinensis . Methods: CsbZIP6 was overexpressed in Arabidopsis thaliana . Effects of CsbZIP6 overexpression on abscisic acid (ABA) sensitivity, freezing tolerance and the expression of cold-responsive genes in arabidopsis were studied. Key Results: CsbZIP6 was induced during cold acclimation in tea plant...
March 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334262/discriminating-the-reaction-types-of-plant-type-iii-polyketide-synthases
#12
Yugo Shimizu, Hiroyuki Ogata, Susumu Goto
Motivation: Functional prediction of paralogs is challenging in bioinformatics because of rapid functional diversification after gene duplication events combined with parallel acquisitions of similar functions by different paralogs. Plant type III polyketide synthases (PKSs), producing various secondary metabolites, represent a paralogous family that has undergone gene duplication and functional alteration. Currently, there is no computational method available for the functional prediction of type III PKSs...
March 6, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28334204/transcriptomic-and-histological-responses-of-african-rice-oryza-glaberrima-to-meloidogyne-graminicola-provide-new-insights-into-root-knot-nematode-resistance-in-monocots
#13
Anne-Sophie Petitot, Tina Kyndt, Rana Haidar, Alexis Dereeper, Myriam Collin, Janice de Almeida Engler, Godelieve Gheysen, Diana Fernandez
Background and Aims: The root-knot nematode Meloidogyne graminicola is responsible for production losses in rice ( Oryza sativa ) in Asia and Latin America. The accession TOG5681 of African rice, O. glaberrima , presents improved resistance to several biotic and abiotic factors, including nematodes. The aim of this study was to assess the cytological and molecular mechanisms underlying nematode resistance in this accession. Methods: Penetration and development in M...
February 28, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334161/elevated-co2-and-warming-effects-on-grassland-plant-mortality-are-determined-by-the-timing-of-rainfall
#14
Mark J Hovenden, Paul C D Newton, Meagan Porter
Background and aims: Global warming is expected to increase the mortality rate of established plants in water-limited systems because of its effect on evapotranspiration. The rising CO 2 concentration ([CO 2 ]), however, should have the opposite effect because it reduces plant transpiration, delaying the onset of drought. This potential for elevated [CO 2 ] (eCO 2 ) to modify the warming effect on mortality should be related to prevailing moisture conditions. This study aimed to determine the impacts of warming by 2 °C and eCO 2 (550 μmol mol -1 ) on plant mortality in an Australian temperate grassland over a 6-year period and to test how interannual variation in rainfall influenced treatment effects...
February 28, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334139/environmental-filtering-drives-the-shape-and-breadth-of-the-seed-germination-niche-in-coastal-plant-communities
#15
Eduardo Fernández-Pascual, Adrián Pérez-Arcoiza, José Alberto Prieto, Tomás E Díaz
Background and Aims: A phylogenetic comparative analysis of the seed germination niche was conducted in coastal plant communities of western Europe. Two hypotheses were tested, that (1) the germination niche shape (i.e. the preference for a set of germination cues as opposed to another) would differ between beaches and cliffs to prevent seedling emergence in the less favourable season (winter and summer, respectively); and (2) the germination niche breadth (i.e. the amplitude of germination cues) would be narrower in the seawards communities, where environmental filtering is stronger...
February 27, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334129/transcriptional-responses-of-detoxification-genes-to-four-plant-allelochemicals-in-aphis-gossypii
#16
Fen Li, Kang-Sheng Ma, Ping-Zhuo Liang, Xue-Wei Chen, Ying Liu, Xi-Wu Gao
Aphis gossypii Glover (Hemiptera: Aphididae) can damage a variety of agricultural crops, so it is very important for cotton aphids to evolve adaptive mechanisms to various allelochemicals from host plants. Our results aim to provide a fundamental and rich resource for exploring aphid functional genes in A. gossypii. A transcriptome data set and five expression profile data sets of A. gossypii samples were analyzed by Illumina sequencing platform. In total, 53,763,866 reads were assembled into 1,963,516 contigs and 28,555 unigenes...
February 17, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334106/economic-injury-level-and-demography-based-control-timing-projection-of-spodoptera-litura-lepidoptera-noctuidae-at-different-growth-stages-of-arachis-hypogaea
#17
Shu-Jen Tuan, Chung-Chieh Lee, Li-Chen Tang, Pavel Saska
Spodoptera litura (F.), one of the most devastating pests in many Asian countries, is normally controlled by relying on chemical insecticides. To encourage an integrated pest management approach, we determined the economic injury level (EIL) for S. litura on peanut, Arachis hypogaea L., by larval infestation with late instars at different crop growth stages. The cumulative consumption rate of the fifth- and sixth-instars was used as the relative unit for the "Spodoptera injury equivalent" (SIE). The yield of marketable pods significantly decreased from 6...
February 17, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334100/an-organismal-concept-for-sengelia-radicans-gen-et-sp-nov-morphology-and-natural-history-of-an-early-devonian-lycophyte
#18
Kelly K S Matsunaga, Alexandru M F Tomescu
Background and Aims: Fossil plants are found as fragmentary remains and understanding them as natural species requires assembly of whole-organism concepts that integrate different plant parts. Such concepts are essential for incorporating fossils in hypotheses of plant evolution and phylogeny. Plants of the Early Devonian are crucial to reconstructing the initial radiation of tracheophytes, yet few are understood as whole organisms. Methods: This study assembles a whole-plant concept for the Early Devonian lycophyte Sengelia radicans gen...
February 20, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334098/untangling-the-reticulate-history-of-species-complexes-and-horticultural-breeds-in-abelia-caprifoliaceae
#19
Sven Landrein, Sven Buerki, Hua-Feng Wang, James J Clarkson
Background and Aims: The genetic and morphological consequences of natural selection and selective breeding are explored in the genus Abelia . The genus consists of ornamental shrubs endemic to China, which have been bred to create attractive and diverse cultivars. Methods: DNA fingerprinting (AFLP) and DNA sequence data are used to investigate the genetic diversity among 46 accessions of Abelia (22 natural taxa and 24 horticultural breeds). In the cultivated varieties these data are used to explore taxon boundaries, hybridisation and backcrossing...
February 20, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28333961/phytochemical-investigation-of-aloe-pulcherrima-roots-and-evaluation-for-its-antibacterial-and-antiplasmodial-activities
#20
Dele Abdissa, Girma Geleta, Ketema Bacha, Negera Abdissa
Medicinal plants with documented traditional uses remain an important source for the treatment of a wide range of ailments. Evidence shows that majority of the Ethiopian population are still dependent on traditional medicine. Aloe pulcherrima Gilbert & Sebsebe is one of the endemic Aloe species traditionally used for the treatment of malaria and wound healing in central, Southern and Northern part of Ethiopia. The aim of the current study was, therefore, to isolate active compounds from roots of A. pulcherrima and evaluate for their antibacterial and antiplasmodial activities using standard test strains...
2017: PloS One
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