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Marcelo KovaČiĆ, Francesc Ordines, Ulrich K Schliewen
A new gobiid species, Buenia lombartei sp. nov. (Teleostei: Gobiidae) is described from the continental slope off the Balearic Islands, western Mediterranean. The Atlantic species Buenia jeffreysii (Günther, 1867) is redescribed and the first record of Buenia affinis Iljin, 1930 is reported for the islands. A key for the species of genus Buenia is provided. The new species can be distinguished from congeneric species by morphological characters: anterior oculoscapular canal semi-closed with pores σ, λ, κ, α, ρ and additional pores and open furrows; suborbital row c of 6 papillae; anal fin I/7-I/8; scales in lateral series 25-27; scales in transverse series 6; pectoral fin rays 18; the second spine of the first dorsal fin longest, backwards reaching to middle second dorsal fin in males when folded down; pelvic fin anterior membrane reduced to less than one sixth of spinous ray in midline depth; tongue well developed and bilobed and several morphometric characters...
March 8, 2018: Zootaxa
Justin B Runyon, Renato S Capellari
Four new Nearctic species belonging to the Chrysotus longipalpus species group are described: Chrysotus keyensis sp. nov. (Florida), Chrysotus mccreadiei sp. nov. (Alabama), Chrysotus mystax sp. nov. (Alabama), and Chrysotus plumarista sp. nov. (Alabama). This brings the number of known species in this group to twelve. A key to species of males of the C. longipalpus species group and new distribution records are provided.
March 22, 2018: Zootaxa
Yaxing Feng, Dong Wang, Dongxue Xiao, Tiago josÉ Pereira, Yuanhu Xuan, Yuanyuan Wang, Xiaoyu Liu, Lijie Chen, Yuxi Duan, Xiaofeng Zhu
A new species of cyst nematode, Cactodera chenopodiae n. sp., parasitizing common lambsquarter, Chenopodium album L., is described from native vegetation in Liaoning, China. Cactodera chenopodiae n. sp. has a circumfenestrate pattern typical of the genus and is morphologically similar to C. cacti Krall Krall, 1978. However, in the new species, females and cysts show a larger L/W ratio whereas second-stage juveniles (J2s) have a longer hyaline region. The new species is also morphologically similar to C. milleri Graney Bird, 1990, but the J2s differ by a larger b ratio and longer tail...
April 11, 2018: Zootaxa
Davide Sassi
The genus Metallactus has been controversial since its introduction due to the ambiguous nature of the original diagnosis. This has caused some confusion in the taxonomy of Neotropical Pachybrachina. In this work the morphology of endophallus, which is useful for the characterization of species groups in several groups of Coleoptera, including Cryptocephalinae, has been analyzed. This has proven to be a good resource also in the taxonomic treatment of the species belonging to the genus Metallactus. After a careful survey on most of the species described so far, the endophallus shape in Metallactus turned out to be remarkably distinctive and very promising in the delimitation of species groups...
April 20, 2018: Zootaxa
Michael P Hammer, Gerald R Allen, Keith C Martin, Mark Adams, Brendan C Ebner, Tarmo A Raadik, Peter J Unmack
The freshwater melanotaeniid genus Cairnsichthys is endemic to a relatively small area of specialised habitat within the Wet Tropics bioregion of north-eastern Queensland, Australia. It was previously considered as monotypic, including only a single species, C. rhombosomoides (Nichols Raven, 1928). The recent discovery of an apparently-isolated population in the Daintree rainforest, approximately 120 km north of the known range extent, prompted a detailed investigation of its taxonomic status using a combined lines of evidence approach...
April 23, 2018: Zootaxa
Alexandra Pitt, Johanna Schmidt, Elke Lang, William B Whitman, Tanja Woyke, Martin W Hahn
Strain AP-Melu-1000-B4 was isolated from a lake located in the mountains of the Mediterranean island of Corsica (France). Phenotypic, chemotaxonomic and genomic traits were investigated. Phylogenetic analyses based on 16S rRNA gene sequencing referred the strain to the cryptic species complex PnecC within the genus Polynucleobacter. The strain encoded genes for biosynthesis of proteorhodopsin and retinal. When pelleted by centrifugation the strain showed an intense rose colouring. Major fatty acids were C16 : 1ω7c, C16 : 0, C18 : 1ω7c and summed feature 2 (C16 : 1 isoI and C14 : 0-3OH)...
April 24, 2018: International Journal of Systematic and Evolutionary Microbiology
Alexandra B Walczak, Nathan Yee, Lily Y Young
This genome report describes the draft genome and physiological characteristics of Bosea sp. WAO (=DSM 102914), a novel strain of the genus Bosea in the family Bradyrhizobiaceae . Bosea sp. WAO was isolated from pulverized pyritic shale containing elevated levels of arsenic. This aerobic, gram negative microorganism is capable of facultative chemolithoautotrophic growth under aerobic conditions by oxidizing the electron donors arsenite, elemental sulfur, thiosulfate, polysulfide, and amorphous sulfur. The draft genome is of a single circular chromosome 6,125,776 bp long consisting of 21 scaffolds with a G + C content of 66...
2018: Standards in Genomic Sciences
B Wang, C T Yang, Q Y Diao, Y Tu
This study investigated the effects of mulberry (Morus alba Linn. sp.) leaf flavonoids and Candida tropicalis on the growth, gastrointestinal development, enzyme activity of gastrointestinal digesta, and blood antioxidant function of dairy calves challenged with Escherichia coli O141:K99. A total of 15 Holstein preweaning bull calves (age = 28 d; body weight = 51 ± 3.9 kg, mean ± standard deviation) were randomly divided into 3 homogeneous groups with no supplementation (control, CON), Candida tropicalis added at 1 g/calf per day (CT), and mulberry leaf flavonoids added at 3 g/calf per day (MLF)...
April 18, 2018: Journal of Dairy Science
Tongtong Kong, Yi Gong, Yan Liu, Xiaobo Wen, Ngoc Tuan Tran, Jude Juventus Aweya, Yueling Zhang, Hongyu Ma, Huaiping Zheng, Shengkang Li
Phagocytosis and apoptosis are key cellular innate immune responses against bacteria and virus in invertebrates. Class B scavenger receptors (SRBs), which contain a CD36 domain, are critical pattern recognition receptors (PRRs) of phagocytosis for bacteria and apoptotic cells. In the present study, we identified a member of SRB subfamily in mud crab Scylla paramamosain, named Sp-SRB. The full-length cDNA of Sp-SRB is 2593 bp with a 1629 bp open reading frame (ORF) encoding a putative protein of 542 amino acids, and predicted to contain a CD36 domain with two transmembrane regions at the C- and N-terminals...
April 18, 2018: Fish & Shellfish Immunology
Hossein Noormohammdi, Shamsozoha Abolmaali, Shakiba Darvish Alipour Astaneh
Drug-resistant Gram-positive pathogens have been a rising risk in hospitals and food industries from the last decades. Here in, the potential of endolysin production in Dasht Desert Bacterial Culture Collection (DDBCC), against indicator bacteria, was investigated. DDBCC was screened against autoclaved-indicator bacteria; Streptococcus faecalis, Streptococcus pyogenes, Bacillus sp, Bacillus subtilis and Staphylococcus aureus as the substrates for the endolysin enzymes. The endolysins were produced in BHI medium followed by ammonium sulfate purification...
April 17, 2018: Microbial Pathogenesis
F F Roxo, G S C Silva, B F Melo
A recent expedition to headwaters of the Rio Pandeiros, a left-bank tributary of the Rio São Francisco revealed the presence of a fourth species of Hisonotus from that basin. Hisonotus devidei sp. nov. differs from congeners by the presence of conspicuous dark blotches of distinct shapes irregularly arranged along lateral and dorsal surfaces of the body and scattered throughout all fins, by possessing small plates in lateral portions of the abdomen and adjacent areas between pelvic fins without development of dermal plates and by morphometric ratios...
April 19, 2018: Journal of Fish Biology
L Domeneghetti, I G Demarchi, J Z Caitano, R B Pedroso, T G V Silveira, M V C Lonardoni
Calophyllum brasiliense is a plant from the Brazilian rain forests and has been used in folk medicine for the treatment of various diseases, including leishmaniasis. This infectious disease depends on the Leishmania sp. and the host immune response. C. brasiliense antileishmanial activity is well known, but the effects on immune response remain to be investigated. This study showed the leishmanicidal and immunomodulatory effects of a 30  μ g/mL of hydroalcoholic extract of C. brasiliense in murine macrophages before and after Leishmania ( Leishmania ) amazonensis infection...
2018: Mediators of Inflammation
Naoto Jimi, Taeko Kimura, Akito Ogawa, Hiroshi Kajihara
A new species of amphinomid polychaete, Benthoscolex seisuiae sp. n. , is described from the Sea of Kumano, Japan, from depths of 487-596 m. The species is distinguishable from its congeners by the following features: i) palps 1.8 times as long as lateral antennae; ii) branchiae do not reach to the tip of the notochaetae. This is the first record of Benthoscolex from Japan. A partial mitochondrial cytochrome c oxidase subunit I gene sequence from the holotype of B. seisuiae sp. n. is provided for reliable species identification in the future...
2018: ZooKeys
Kosuke Sueyoshi, Miki Yamada, Aki Yamano, Kaori Ozaki, Shimpei Sumimoto, Arihiro Iwasaki, Kiyotake Suenaga, Toshiaki Teruya
Two new pyrrolinone-containing lipopeptides, ypaoamides B (1) and C (2), were isolated from an Okeania sp. marine cyanobacterium collected in Okinawa. Their structures were determined by spectroscopic analysis and Marfey's analysis of acid hydrolysates. Ypaoamides B (1) and C (2) stimulated glucose uptake in cultured rat L6 myotubes. In particular, ypaoamide B (1) showed potent activity and activated AMP-activated protein kinase.
April 18, 2018: Journal of Natural Products
Jen-Hao Cheng, Chien-Chih Huang, Yen-Hua Huang, Cheng-Yang Huang
Dihydropyrimidinase, a dimetalloenzyme containing a carboxylated lysine within the active site, is a member of the cyclic amidohydrolase family, which also includes allantoinase, dihydroorotase, hydantoinase, and imidase. Unlike all known dihydropyrimidinases, which are tetrameric, pseudomonal dihydropyrimidinase forms a dimer at neutral pH. In this paper, we report the crystal structure of P. aeruginosa dihydropyrimidinase at pH 5.9 (PDB entry 5YKD). The crystals of P. aeruginosa dihydropyrimidinase belonged to space group C 2221 with cell dimensions of a  = 108...
2018: Bioinorganic Chemistry and Applications
Pedro H Mainardi, Valker A Feitosa, Livia B Brenelli de Paiva, Rafaella C Bonugli-Santos, Fabio M Squina, Adalberto Pessoa, Lara D Sette
Laccase production in saline conditions is still poorly studied. The aim of the present study was to investigate the production of laccase in two different types of bioreactors by the marine-derived basidiomycete Peniophora sp. CBMAI 1063. The highest laccase activity and productivity were obtained in the Stirred Tank (ST) bioreactor, while the highest biomass concentration in Air-lift (AL) bioreactor. The main laccase produced was purified by ion exchange and size exclusion chromatography and appeared to be monomeric with molecular weight of approximately 55 kDa...
May 2018: Fungal Biology
Madan Kumar, Arti Mishra, Shashi Shekhar Singh, Shaili Srivastava, Indu Shekhar Thakur
In the present study, a non-blue laccase gene from previously reported lignin degrading bacterium, Pandoraea sp. ISTKB, was isolated, cloned and expressed in E. coli. Bioinformatics analysis of sequence discovered twin-arginine translocation signal sequence, copper binding motifs and presence of more random coil compare to helices and sheets in structure. The enzyme was found to be active on wide pH range and the pH optima was observed at pH 4 and 8 on substrate 2,2'-Azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) and 2,6-Dimethoxyphenol respectively...
April 14, 2018: International Journal of Biological Macromolecules
I Carlavan, B Bertino, M Rivier, P Martel, V Bourdes, M Motte, S Déret, P Reiniche, C Menigot, A Khammari, B Dreno, P Fogel, J J Voegel
BACKGROUND: Possible outcomes of acne lesions are atrophic scars which may cause serious psychological distress. Current treatments of post-acne scarring often require invasive procedures. Pathophysiological studies on acne scarring investigated only the first week of papule life. OBJECTIVES: Study the pathophysiology of atrophic scar formation to identify molecular and cellular pathways that can lead to new therapies for the prevention of acne scarring. METHODS: Large-scale gene expression profiling and immunohistochemistry analysis were performed on uninvolved skin and papules in both, scar-prone (SP) and non-scar-prone (NSP) acne patients, at different time points...
April 16, 2018: British Journal of Dermatology
He Li, Zhong-Bin Liao, Dan Tang, Wen-Bo Han, Qiang Zhang, Jin-Ming Gao
Four new secondary metabolites, chaetosemins G-J (1-4), along with 11 known ones (5-15) were isolated from the culture of C. seminudum C208 and Chaetomium sp. C521. Their structures were determined by extensive NMR spectroscopic analyses. These metabolites were evaluated in vitro for antifungal, antioxidant, toxicity, and α-glucosidase inhibitory activities. Chaetosemin J (4) and monaschromone (5) significantly inhibited the growth of four plant pathogenic fungi Botrytis cinerea, Alternaria solani, Magnaporthe oryzae, and Gibberella saubinettii with the minimum inhibitory concentrations (MIC) values ranging from 6...
April 16, 2018: Journal of Antibiotics
Guo-Fei Qin, Xu-Li Tang, Yan-Ting Sun, Xiang-Chao Luo, Jing Zhang, Leen van Ofwegen, Ping-Jyun Sung, Ping-Lin Li, Guo-Qiang Li
Three new sesquiterpenoids (sinuketal ( 1 ), sinulins A and B ( 2 and 3 )) and two new cembranoids (sinulins C and D ( 4 and 5 )), as well as eight known sesquiterpenoids ( 6–13 ) and eight known cembranoids ( 14–21 ), were isolated from the Xisha soft coral Sinularia sp. Their structures were elucidated by extensive spectroscopic analysis. Compound 1 possesses an unprecedented isopropyl-branched bicyclo [6.3.0] undecane carbon skeleton with unique endoperoxide moiety, and a plausible biosynthetic pathway of it was postulated...
April 13, 2018: Marine Drugs
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