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https://www.readbyqxmd.com/read/28805453/colletotrichine-a-a-new-sesquiterpenoid-from-colletotrichum-gloeosporioides-gt-7-a-fungal-endophyte-of-uncaria-rhynchophylla
#1
Xiao-Wei Chen, Zhong-Duo Yang, Jian-Hui Sun, Tong-Tong Song, Bao-Ying Zhu, Jun-Wen Zhao
One new compound, Colletotrichine A (1), was produced by the fungal Colletotrichum gloeosporioides GT-7. The structure was established by 1D and 2D NMR spectra. Monoamine oxidase (MAO) and acetylcholinesterase (AChE) inhibitory activity of 1 was also evaluated. Compound 1 showed AChE-inhibiting activity with IC50 value of 28 μg/mL.
August 14, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28804491/phylloremediation-of-air-pollutants-exploiting-the-potential-of-plant-leaves-and-leaf-associated-microbes
#2
REVIEW
Xiangying Wei, Shiheng Lyu, Ying Yu, Zonghua Wang, Hong Liu, Dongming Pan, Jianjun Chen
Air pollution is air contaminated by anthropogenic or naturally occurring substances in high concentrations for a prolonged time, resulting in adverse effects on human comfort and health as well as on ecosystems. Major air pollutants include particulate matters (PMs), ground-level ozone (O3), sulfur dioxide (SO2), nitrogen dioxides (NO2), and volatile organic compounds (VOCs). During the last three decades, air has become increasingly polluted in countries like China and India due to rapid economic growth accompanied by increased energy consumption...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28803995/depsidones-and-an-%C3%AE-pyrone-derivative-from-simpilcillium-sp-psu-h41-an-endophytic-fungus-from-hevea-brasiliensis-leaf
#3
Praphatsorn Saetang, Vatcharin Rukachaisirikul, Souwalak Phongpaichit, Sita Preedanon, Jariya Sakayaroj, Suparerk Borwornpinyo, Sawinee Seemakhan, Chatchai Muanprasat
Nine previously undescribed depsidones (simplicildones A-I) and one previously undescribed α-pyrone (simplicilopyrone) were isolated from the endophytic fungus Simplicillium sp. PSU-H41 along with 11 known compounds. Their structures were established by extensive spectroscopic analysis. Simplicildone A and known botryorhodine C displayed weak antibacterial against Staphylococcus aureus with equal MIC values of 32 μg/mL. Additionally, botryorhodine C was active against methicillin-resistant S. aureus with the same MIC value...
August 9, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28799077/arbuscular-mycorrhizal-fungus-inoculation-reduces-the-drought-resistance-advantage-of-endophyte-infected-versus-endophyte-free-leymus-chinensis
#4
Hui Liu, Wei Chen, Man Wu, Rihan Wu, Yong Zhou, Yubao Gao, Anzhi Ren
Grasses can be infected simultaneously by endophytic fungi and arbuscular mycorrhizal (AM) fungi. In this study, we tested the hypothesis that endophyte-associated drought resistance of a native grass was affected by an AM fungus. In a greenhouse experiment, we compared the performance of endophyte-infected (EI) and endophyte-free (EF) Leymus chinensis, a dominant species native to the Inner Mongolia steppe, under altered water and AM fungus availability. The results showed that endophyte infection significantly increased drought resistance of the host grass, but the beneficial effects were reduced by AM fungus inoculation...
August 10, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28798173/draft-genome-sequence-of-the-endophytic-bacillus-aryabhattai-strain-squ-r12-identified-from-phoenix-dactylifera-l-roots
#5
Mahmoud W Yaish
Bacillus aryabhattai strain SQU-R12 was isolated from date palm seedlings, where it showed a growth-promoting capacity by being able to synthesize indole-3-acetic acid phytohormone and reduce ethylene biosynthesis by producing 1-aminocyclopropane-1-carboxylic acid deaminase. The draft genome sequence of this strain is reported here.
August 10, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28796420/chaetochromones-a-c-three-new-polyketides-from-mangrove-plant-derived-endophytic-fungus-phomopsis-sp-scsio-41006
#6
Zhi-Ran Ju, Xiu-Ping Lin, Minke Li, Ying Wang, Yong-Qi Tian, Jun-Feng Wang, Juan Liu, Zhengchao Tu, Shi-Hai Xu, Yonghong Liu
Three new polyketides, chaetochromones A-C (1-3), together with a chromone (4), were isolated from the ethyl acetate extract of mangrove-derived fungus Phomopsis sp. SCSIO 41006. Their structures were elucidated by means of spectroscopic techniques (1D and 2D NMR, MS, UV and IR). The absolute configurations of the new compounds were established by CD data. This article is protected by copyright. All rights reserved.
August 10, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28794920/isolation-identification-and-characterization-of-arsenic-transforming-exogenous-endophytic-citrobacter-sp-rpt-from-roots-of-pteris-vittata
#7
T Selvankumar, R Radhika, R Mythili, S Arunprakash, P Srinivasan, M Govarthanan, Hyunook Kim
The aim of the present study was to assess the arsenic (As) transformation potential of endophytic bacteria isolated from roots of Pteris vittata plant. The endophytic bacterium was tested for minimal inhibitory concentration (MIC) against As. The endophytic strain RPT exhibited the highest resistance to As(V) (400 mg/l). Phylogenetic analysis of the 16S rRNA sequence suggested that strain RPT was a member of genus Citrobacter. The As transformation assay revealed As(III) oxidation and As(V) reduction potential of Citrobacter sp...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28793837/further-investigation-of-equine-fescue-oedema-induced-by-mediterranean-tall-fescue-lolium-arundinaceum-infected-with-selected-fungal-endophytes-epichlo%C3%A3-coenophiala
#8
S C Finch, J S Munday, B L Sutherland, J B Vlaming, L R Fletcher
AIMS: To determine if equine fescue oedema (EFO) induced by grazing Mediterranean-type tall fescue (Lolium arundinaceum) infected with selected endophytes (Epichloë coenophiala) could be prevented by treatment with the corticosteroid, methylprednisolone, and anti-histamine cetirizine, and to determine concentrations of lolines, specifically N-acetyl norloline (NANL), in grasses grazed by horses that did and did not develop EFO. METHODS: Four horses were grazed on AR542-infected Mediterranean tall fescue pasture (from Day 0) for 7 days prior to being subjected to euthanasia...
August 9, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28791444/design-and-development-of-a-workflow-for-microbial-spray-formulations-including-decision-criteria
#9
Ana Bejarano, Ursula Sauer, Claudia Preininger
Herein, we present a workflow for the development of talc-based microbial inoculants for foliar spray consisting of four steps. These include together with decision-making criteria (1) the selection of additives based on their capability to wet juvenile maize leaves, (2) their adhesion on the plant, (3) their interaction with the biological systems, and (4) the choice of thickener for good dispersion stability. In total, 29 additives including polysaccharides and proteins, polyols, glycosides, oils, waxes, and surfactants (e...
August 8, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28790982/isolation-and-characterization-of-terrein-an-antimicrobial-and-antitumor-compound-from-endophytic-fungus-aspergillus-terreus-jas-2-associated-from-achyranthus-aspera-varanasi-india
#10
Jyoti Goutam, Gunjan Sharma, Vinod K Tiwari, Amrita Mishra, Ravindra N Kharwar, Vijayakumar Ramaraj, Biplob Koch
The present study aimed at characterizing biological potentials of endophyte Aspergillus terreus JAS-2 isolated from Achyranthus aspera. Crude extracted from endophytic fungus JAS-2 was purified and chemically characterized by chromatographic and spectroscopic studies respectively. Spectral assignment of NMR (nuclear magnetic resonance) data, (1)H proton and (13)C carbon analysis along with FTIR data elucidated the structure of compound as 4,5-Dihydroxy-3-(1-propenyl)-2-cyclopenten-1-one. After purification and identification a set of experiment was conducted to explore efficacy of compound...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28783599/root-endophytic-fungus-piriformospora-indica-affected-growth-cadmium-partitioning-and-chlorophyll-fluorescence-of-sunflower-under-cadmium-toxicity
#11
Saleh Shahabivand, Azar Parvaneh, Ali Asghar Aliloo
Cadmium (Cd) pollution in the soil threatens the quality of environmental health, and deleteriously affects physiological activities of crops. Symbiosis of endophytic fungi with various plants is a promising manner to improving numerous plant characteristics and remediating heavy metal-polluted soils. In this pot experiment, the influence of root endophyte fungus Piriformospora indica on growth, physiological parameters and organs Cd accumulation in sunflower cv. Zaria plants under the toxic levels of Cd (0, 40, 80 and 120mg/kg soil) were studied...
August 4, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28774982/draft-genome-sequence-of-an-endophytic-fungus-gaeumannomyces-sp-strain-js-464-isolated-from-a-reed-plant-phragmites-communis
#12
Jung A Kim, Jongbum Jeon, Ki-Tae Kim, Gobong Choi, Sook-Young Park, Hyun-Jung Lee, Sang-Hee Shim, Yong-Hwan Lee, Soonok Kim
An endophytic fungus, Gaeumannomyces sp. strain JS-464, is capable of producing a number of secondary metabolites which showed significant nitric oxide reduction activity. The draft genome assembly has a size of 53,151,282 bp, with a G+C content of 53.11% consisting of 80 scaffolds with an N50 of 7.46 Mbp.
August 3, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28774638/mangrove-endophyte-promotes-reforestation-tree-acacia-polyphylla-growth
#13
Renata Assis Castro, Manuella Nóbrega Dourado, Jaqueline Raquel de Almeida, Paulo Teixeira Lacava, André Nave, Itamar Soares de Melo, João Lucio de Azevedo, Maria Carolina Quecine
Mangroves are ecosystems located in the transition zone between land and sea that serve as a potential source of biotechnological resources. Brazil's extensive coast contains one of the largest mangrove forests in the world (encompassing an area of 25,000km(2) along all the coast). Endophytic bacteria were isolated from the following three plant species: Rhizophora mangle, Laguncularia racemosa and Avicennia nitida. A large number of these isolates, 115 in total, were evaluated for their ability to fix nitrogen and solubilize phosphorous...
July 19, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28774309/fungal-endophytes-associated-with-viola-odorata-linn-as-bioresource-for-pancreatic-lipase-inhibitors
#14
M Katoch, A Paul, G Singh, S N C Sridhar
BACKGROUND: As per the recent statistical reports of World Health Organisation (WHO), 13% of total global population is obese. Orlistat remains to be the only drug approved for the long term treatment of obesity. Recent findings highlighted severe adverse effects of orlistat that included hepatotoxicity, gall stones, kidney stones and acute pancreatitis. Therefore, search for new drug is required. The investigations based on endophytic natural products would prove pivotal in the global fight against this health issue...
August 3, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28771135/nocardioides-sonneratiae-sp-nov-an-endophytic-actinomycete-isolated-from-a-branch-of-sonneratia-apetala
#15
Fei Li, Li Tuo, Zhi-Wei Su, Xiao-Qun Wei, Xiao-Yong Zhang, Cheng-Hai Gao, Ri-Ming Huang
A Gram-staining-positive, aerobic non-spore-forming and short-rod-shaped endophytic actinomycete was isolated from a branch of Sonneratia apetala, designated strain BGMRC0092T and investigated in detail data to determine its taxonomic position. On the basis of the 16S rRNA gene sequence analysis, the results of the phylogenetic analyses indicated that BGMRC0092T was most closely related to Nocardioides alpinus Cr7-14T (96.9 %), Nocardioides oleivorans DSM16090T (96.4 %) and Nocardiodes exalbidus RC825T (96...
August 4, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28764775/an-assessment-on-the-role-of-endophytic-microbes-in-the-therapeutic-potential-of-fagonia-indica
#16
Lubna Rahman, Zabta K Shinwari, Irum Iqrar, Lutfur Rahman, Faouzia Tanveer
BACKGROUND: Natural products of animals, plants and microbes are potential source of important chemical compounds, with diverse applications including therapeutics. Endophytic bacteria that are especially associated with medicinal plants presents a reservoir of therapeutic compounds. Fagonia indica has been recently investigated by numerous researchers because of its striking therapeutic potential especially in cancer. It is also reported that endophytes play a vital role in the biosynthesis of various metabolites; therefore we believe that endophytes associated with F...
August 1, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28761108/the-advantages-of-endophyte-infected-over-uninfected-tall-fescue-in-the-growth-and-pathogen-resistance-are-counteracted-by-elevated-co2
#17
Wei Chen, Hui Liu, Wurihan, Yubao Gao, Stuart D Card, Anzhi Ren
Atmospheric CO2 concentrations are predicted to double within the next century. Despite this trend, the extent and mechanisms through which elevated CO2 affects grass-endophyte symbionts remain uncertain. In the present study, the growth, chemical composition and pathogen resistance of endophyte-infected (E+) and uninfected (E-) tall fescue were compared under elevated CO2 conditions. The results showed that the effect of endophyte infection on the growth of tall fescue was significantly affected by elevated CO2...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28760324/the-role-of-plant-growth-promoting-bacteria-in-metal-phytoremediation
#18
Zhaoyu Kong, Bernard R Glick
Phytoremediation is a promising technology that uses plants and their associated microbes to clean up contaminants from the environment. In recent years, phytoremediation assisted by plant growth-promoting bacteria (PGPB) has been highly touted for cleaning up toxic metals from soil. PGPB include rhizospheric bacteria, endophytic bacteria and the bacteria that facilitate phytoremediation by other means. This review provides information about the traits and mechanisms possessed by PGPB that improve plant metal tolerance and growth, and illustrate mechanisms responsible for plant metal accumulation/translocation in plants...
2017: Advances in Microbial Physiology
https://www.readbyqxmd.com/read/28759788/isolation-of-vanadium-resistance-endophytic-bacterium-pre01-from-pteris-vittata-in-stone-coal-smelting-district-and-characterization-for-potential-use-in-phytoremediation
#19
Liang Wang, Hai Lin, Yingbo Dong, Yinhai He, Chenjing Liu
This study investigates the V-resistant endophytic bacteria isolated from V-accumulator Pteris vittata grown on stone coal smelting district. Among all the ten isolates, the strain PRE01 identified as Serratia marcescens ss marcescens by Biolog GEN III MicroPlate™ was screened out by ranking first in terms of heavy metal resistance and plant growth promoting traits. The S. marcescens PRE01 had strong V, Cr and Cd resistance especially for V up to 1500mg/L. In addition, it exhibited ACC deaminase activity, siderophore production and high indoleacetic acid production (60...
July 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28756924/antioxidant-and-hepatoprotective-potentials-of-novel-endophytic-fungus-achaetomium-sp-from-euphorbia-hirta
#20
K P G Uma Anitha, S Mythili
OBJECTIVE: To isolate, identify and evaluate the antioxidant, antimicrobial, hepatoprotective potentials, total phenolic content, flavonoid content, tannin content of ethyl acetate extract of endophytic fungus Achaetomium sp., isolated from Euphorbia hirta. METHODS: Hepatoprotectivity of ethyl acetate extract of Achaetomium sp., was evaluated by CCl4 induced toxicity in HepG2 cells and subsequently analysed for cell viability using MTT assay. It also demonstrates antioxidant and antimicrobial potentials by DPPH radical scavenging assay and well diffusion assay respectively...
June 2017: Asian Pacific Journal of Tropical Medicine
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