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https://www.readbyqxmd.com/read/28920827/marmoricola-endophyticus-sp-nov-an-endophytic-actinobacterium-isolated-from-thespesia-populnea
#1
Zhong-Ke Jiang, Zhen Pan, Fei-Na Li, Xiao-Jun Li, Shao-Wei Liu, Li Tuo, Ming-Guo Jiang, Cheng-Hang Sun
A novel endophytic actinobacterium, designated strain 8BXZ-J1T, was isolated from surface-sterilized branches of Thespesia populnea collected from Beilun Estuary Mangrove Forest National Nature Reserve in Guangxi, China, and examined by a polyphasic approach to determine its taxonomic position. Cells of the isolate were Gram-stain-positive, aerobic, non-spore-forming, non-motile and short rod-shaped. Phylogenetic analysis based on 16S rRNA gene sequences suggested that strain 8BXZ-J1T belonged to the genus Marmoricola, sharing highest similarity with Marmoricola solisilvae DSM 27140T (96...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28919898/chitosan-increases-tomato-root-colonization-by-pochonia-chlamydosporia-and-their-combination-reduces-root-knot-nematode-damage
#2
Nuria Escudero, Federico Lopez-Moya, Zahra Ghahremani, Ernesto A Zavala-Gonzalez, Aurora Alaguero-Cordovilla, Caridad Ros-Ibañez, Alfredo Lacasa, Francisco J Sorribas, Luis V Lopez-Llorca
The use of biological control agents could be a non-chemical alternative for management of Meloidogyne spp. [root-knot nematodes (RKN)], the most damaging plant-parasitic nematodes for horticultural crops worldwide. Pochonia chlamydosporia is a fungal parasite of RKN eggs that can colonize endophytically roots of several cultivated plant species, but in field applications the fungus shows a low persistence and efficiency in RKN management. The combined use of P. chlamydosporia with an enhancer could help its ability to develop in soil and colonize roots, thereby increasing its efficiency against nematodes...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28918530/exogenous-and-endogenous-increase-in-fungal-ggpp-increased-fungal-taxol-production
#3
Sameh S M Soliman, Kareem A Mosa, Ali A El-Keblawy, Mohamed I Husseiny
Taxol is an anticancer identified in both endophytic fungus and its host plant. Plant Taxol is a diterpenoid with geranylgeranyl diphosphate (GGPP) mediates the biosynthesis of its terpenoid moiety. Previous report has suggested that fungal Taxol may require terpenoid pathway for its biosynthesis. Here in this study, feeding a Taxol-producing endophytic fungus (Paraconiothyrium SSM001) with terpenoid precursors including isopentenyl pyrophosphate (IPP, isoprene) and GGPP enhanced Taxol production threefold and fivefold, respectively, compared to the control...
September 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28916847/endoscopic-resection-of-gastric-gastrointestinal-stromal-tumors-originating-from-the-muscularis-propria-layer-in-north-america-methods-and-feasibility-data
#4
Iman Andalib, Daniel Yeoun, Ramesh Reddy, Steve Xie, Shahzad Iqbal
INTRODUCTION: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. In recent years, endoscopic procedures such as endoscopic enucleation (EN) and endoscopic full-thickness resection (EFTR) have been used to resect GISTs. This study aimed to investigate the clinical efficacy, safety, and feasibility of endoscopic resection of GISTs in a North American population. METHODS: A total of 25 patients with gastric submucosal lesions (SML) underwent endoscopic resection from December 2014 to April 2016...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916558/potential-of-rice-stubble-as-a-reservoir-of-bradyrhizobial-inoculum-in-rice-legume-crop-rotation
#5
Pongdet Piromyou, Teerana Greetatorn, Kamonluck Teamtisong, Panlada Tittabutr, Nantakorn Boonkerd, Neung Teaumroong
Bradyrhizobium encompasses a variety of bacteria that can live in symbiotic and endophytic associations with leguminous and non-leguminous plants such as rice. Therefore, it can be expected that rice endophytic bradyrhizobia can be applied in the rice-legume crop rotation system. Some endophytic bradyrhizobial strains were isolated from rice (Oryza sativa L.) tissues. The rice biomass could be enhanced when supplying KNO3, NH4NO3, or urea with bradyrhizobial strain inoculation, especially strain SUTN9-2. In contrast, the strains which suppressed rice growth were photosynthetic bradyrhizobia and also found to produce nitric oxide (NO) in the rice root...
September 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28912334/draft-genome-sequence-of-paenibacillus-sp-xy044-a-potential-plant-growth-promoter-isolated-from-a-tea-plant
#6
Huihui Liu, Wenna Shan, Ying Zhou, Xiaomin Yu
Paenibacillus sp. XY044 is an endophytic bacterium isolated from the stem of a tea plant (Camellia sinensis cv. Maoxie). Here, we present the draft genome sequence of XY044, which includes genes encoding features related to plant growth promotion and biocontrol.
September 14, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28912322/draft-genome-sequence-of-streptomyces-sp-xy006-an-endophyte-isolated-from-tea-camellia-sinensis
#7
Wenna Shan, Huihui Liu, Ying Zhou, Xiaomin Yu
Streptomyces sp. XY006 is an endophytic bacterium isolated from the young leaf material of the tea plant (Camellia sinensis). The draft genome consists of 8.2 Mb and encodes 7,415 putative open reading frames. This strain is found to contain a high capacity for the production of natural products.
September 14, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28906443/cytotoxic-polyketides-with-an-oxygen-bridged-cyclooctadiene-core-skeleton-from-the-mangrove-endophytic-fungus-phomosis-sp-a818
#8
Wei Zhang, Baobing Zhao, Liangcheng Du, Yuemao Shen
Plant endophytic microorganisms represent a largely untapped resource for new bioactive natural products. Eight polyketide natural products were isolated from a mangrove endophytic fungus Phomosis sp. A818. The structural elucidation of these compounds revealed that they share a distinct feature in their chemical structures, an oxygen-bridged cyclooctadiene core skeleton. The study on their structure-activity relationship showed that the α,β-unsaturated δ-lactone moiety, as exemplified in compounds 1 and 2, was critical to the cytotoxic activity of these compounds...
September 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28904742/draft-genome-sequence-of-the-cellulolytic-endophyte-chitinophaga-costaii-a37t2-t
#9
Diogo N Proença, William B Whitman, Nicole Shapiro, Tanja Woyke, Nikos C Kyrpides, Paula V Morais
Here we report the draft genome sequence of Chitinophaga costai A37T2(T) (=CIP 110584(T), =LMG 27458(T)), which was isolated from the endophytic community of Pinus pinaster tree. The total genome size of C. costaii A37T2(T) is 5.07 Mbp, containing 4204 coding sequences. Strain A37T2(T) encoded multiple genes likely involved in cellulolytic, chitinolytic and lipolytic activities. This genome showed 1145 unique genes assigned into 109 Cluster of Orthologous Groups in comparison with the complete genome of C. pinensis DSM 2588(T)...
2017: Standards in Genomic Sciences
https://www.readbyqxmd.com/read/28902910/pituitary-genomic-expression-profiles-of-steers-are-altered-by-grazing-of-high-vs-low-endophyte-infected-tall-fescue-forages
#10
Qing Li, Raquel Hegge, Phillip J Bridges, James C Matthews
Consumption of ergot alkaloid-containing tall fescue grass impairs several metabolic, vascular, growth, and reproductive processes in cattle, collectively producing a clinical condition known as "fescue toxicosis." Despite the apparent association between pituitary function and these physiological parameters, including depressed serum prolactin; no reports describe the effect of fescue toxicosis on pituitary genomic expression profiles. To identify candidate regulatory mechanisms, we compared the global and selected targeted mRNA expression patterns of pituitaries collected from beef steers that had been randomly assigned to undergo summer-long grazing (89 to 105 d) of a high-toxic endophyte-infected tall fescue pasture (HE; 0...
2017: PloS One
https://www.readbyqxmd.com/read/28901785/a-new-anti-inflammatory-meroterpenoid-from-the-fungus-aspergillus-terreus-h010
#11
Zhaoming Liu, Hongju Liu, Yan Chen, Zhigang She
An unusual austinoid, 1,2-dehydro-terredehydroaustin (1), together with two known meroterpenoids (2 and 3), were isolated from the mangrove endophytic fungus Aspergillus terreus. The structures were elucidated on the basis of spectroscopic data, X-ray diffraction and ECD calculations. The anti-inflammatory activity was assayed and compound 1 exhibited weak inhibition effect against the production of nitric oxide (NO) in lipopolysaccharide (LPS)-induced RAW 246.7 mouse macrophages with an IC50 value of 42.3 μM...
September 13, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28900420/seed-and-root-endophytic-fungi-in-a-range-expanding-and-a-related-plant-species
#12
Stefan Geisen, Olga Kostenko, Mark C Cnossen, Freddy C Ten Hooven, Branko Vreš, Wim H van der Putten
Climate change is accelerating the spread of plants and their associated species to new ranges. The differences in range shift capacity of the various types of species may disrupt long-term co-evolved relationships especially those belowground, however, this may be less so for seed-borne endophytic microbes. We collected seeds and soil of the range-expanding Centaurea stoebe and the congeneric Centaurea jacea from three populations growing in Slovenia (native range of both Centaurea species) and the Netherlands (expanded range of C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28898746/plant-growth-promoting-endophyte-piriformospora-indica-alleviates-salinity-stress-in-medicago-truncatula
#13
Liang Li, Lei Li, Xiaoyang Wang, Pengyue Zhu, Hongqing Wu, Shuting Qi
Piriformospora indica, a cultivable root endophytic fungus, induces growth promotion as well as biotic stress resistance and tolerance to abiotic stress in a broad range of host plants. In this study, the potential protection for M Medicago truncatula plants from salinity stress by P. indica was explored. The improved plant growth under severe saline condition was exhibited in P. indica-colonized lines. Moreover, the antioxidant enzymes activities and hyphae density in roots were increased by the endophyte under high salt concentration...
September 1, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28898288/long-term-no-till-a-major-driver-of-fungal-communities-in-dryland-wheat-cropping-systems
#14
Dipak Sharma-Poudyal, Daniel Schlatter, Chuntao Yin, Scot Hulbert, Timothy Paulitz
In the dryland Pacific Northwest wheat cropping systems, no-till is becoming more prevalent as a way to reduce soil erosion and fuel inputs. Tillage can have a profound effect on microbial communities and soilborne fungal pathogens, such as Rhizoctonia. We compared the fungal communities in long-term no-till (NT) plots adjacent to conventionally tilled (CT) plots, over three years at two locations in Washington state and one location in Idaho, US. We used pyrosequencing of the fungal ITS gene and identified 422 OTUs after rarefication...
2017: PloS One
https://www.readbyqxmd.com/read/28895524/nocardioides-kandeliae-sp-nov-an-endophytic-actinomycete-isolated-from-leaves-of-kandelia-candel
#15
Jun Liu, Fei Li, Cheng-Hai Gao, Yu Han, Huili Hao, Xiang-Xi Yi, Ri-Ming Huang
A Gram-stain-positive, aerobic, non-spore-forming, atrichous and short rod-shaped endophytic actinomycete, designated strain BGMRC 2075T, was isolated from the leaves of Kandelia candel, and was subjected to polyphasic characterization to unravel its taxonomic position. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain BGMRC 2075T belongs to the genus Nocardioides,showing the highest 16S rRNA gene sequence similarity to Nocardioides aestuarii JC2056T (96.1 %), Nocardioides agariphilus MSL-28T (95...
September 12, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28894921/structural-and-functional-variability-in-root-associated-bacterial-microbiomes-of-cd-zn-hyperaccumulator-sedum-alfredii
#16
Jipeng Luo, Qi Tao, Keren Wu, Jinxing Li, Jie Qian, Yongchao Liang, Xiaoe Yang, Tingqiang Li
Interactions between roots and microbes affect plant's resistance to abiotic stress. However, the structural and functional variation of root-associated microbiomes and their effects on metal accumulation in hyperaccumulators remain poorly understood. Here, we characterize the root-associated microbiota of a hyperaccumulating (HP) and a non-hyperaccumulating (NHP) genotype of Sedum alfredii by 16S ribosomal RNA gene profiling. We show that distinct microbiomes are observed in four spatially separable compartments: the bulk soil, rhizosphere, rhizoplane, and endosphere...
September 11, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28894891/characterization-and-synergistic-effect-of-antifungal-volatile-organic-compounds-emitted-by-the-geotrichum-candidum-pf005-an-endophytic-fungus-from-the-eggplant
#17
Abhirup Mookherjee, Paramita Bera, Adinpunya Mitra, Mrinal K Maiti
Plant-associated endophytes are recognized as sources of novel bioactive molecules having diverse applications. In this study, an endophytic yeast-like fungal strain was isolated from the fruit of eggplant (Solanum melongena) and identified as Geotrichum candidum through phenotypic and genotypic characterizations. This endophytic G. candidum isolate PF005 was found to emit fruity scented volatiles. The compositional profiling of volatile organic compounds (VOCs) revealed the presence of 3-methyl-1-butanol, ethyl 3-methylbutanoate, 2-phenylethanol, isopentyl acetate, naphthalene, and isobutyl acetate in significant proportion when analyzed on a time-course basis...
September 11, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28889910/phylogenetic-study-of-the-colletotrichum-species-on-imported-citrus-fruits-uncovers-a-low-diversity-and-a-new-species-in-the-colletotrichum-gigasporum-complex
#18
Clovis Douanla-Meli, Jens-Georg Unger
Colletotrichum species associated with citrus fruits are fragmentarily known and it lacks accordingly accurate information on the diversity carried alongside the trade of these commodities from producer countries to Europe. In this study, we investigated the molecular phylogenetic diversity, colonisation, and prevalence of Colletotrichum isolated from asymptomatic and diseased tissues of nine citrus fruit species from 17 geographically diverse countries. Totally 454 isolates were morphoculturally characterised, and multilocus analyses (ACT, ApMat, CHS-1, GAPDH, ITS, TUB2) was performed on a subset of representative morphotype isolates...
October 2017: Fungal Biology
https://www.readbyqxmd.com/read/28888960/complete-genome-sequence-of-endophyte-bacillus-flexus-klbmp-4941-reveals-its-plant-growth-promotion-mechanism-and-genetic-basis-for-salt-tolerance
#19
Tian-Tian Wang, Peng Ding, Pan Chen, Ke Xing, Juan-Luan Bai, Wen Wan, Ji-Hong Jiang, Sheng Qin
Bacillus flexus KLBMP 4941 is a halotolerant endophyte isolated from the halophyte Limonium sinense. This strain can improve host seedling growth under salt stress conditions. We here report the complete genome information of endophyte KLBMP 4941. It has a circular chromosome and two plasmids for a total genome 4,104,242 bp in size with a G+C content of 38.09%. Genes related to plant growth promotion (PGP), such as those associated with nitrogen fixation, siderophore, spermidine, and acetoin synthesis were found in the KLBMP 4941 genome...
September 6, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28886068/analysis-of-simple-sequence-repeat-ssr-structure-and-sequence-within-epichlo%C3%A3-endophyte-genomes-reveals-impacts-on-gene-structure-and-insights-into-ancestral-hybridization-events
#20
William Clayton, Carla Jane Eaton, Pierre-Yves Dupont, Tim Gillanders, Nick Cameron, Sanjay Saikia, Barry Scott
Epichloë grass endophytes comprise a group of filamentous fungi of both sexual and asexual species. Known for the beneficial characteristics they endow upon their grass hosts, the identification of these endophyte species has been of great interest agronomically and scientifically. The use of simple sequence repeat loci and the variation in repeat elements has been used to rapidly identify endophyte species and strains, however, little is known of how the structure of repeat elements changes between species and strains, and where these repeat elements are located in the fungal genome...
2017: PloS One
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