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https://www.readbyqxmd.com/read/28110092/cutin-synthase2-maintains-progressively-developing-cuticular-ridges-in-arabidopsis-sepals
#1
Lilan Hong, Joel Brown, Nicholas A Segerson, Jocelyn K C Rose, Adrienne H K Roeder
The cuticle is a crucial barrier on the aerial surfaces of land plants. In many plants, including Arabidopsis, the sepals and petals form distinctive nanoridges in their cuticles. Yet little is known about how the formation and maintenance of these nanostructures is coordinated with the growth and development of the underlying cells. Here we characterize the cutin synthase 2 (cus2) mutant, which causes a great reduction in cuticular ridges on the mature sepal epidermis, but only a moderate effect on petal cone cell ridges...
January 18, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28109063/chemical-variability-antioxidant-and-antifungal-activities-of-essential-oils-and-hydrosol-extract-of-calendula-arvensis-l-from-western-algeria
#2
Rania Belabbes, Mohammed El Amine Dib, Nassim Djabou, Faiza Ilias, Boufeldja Tabti, Jean Costa, Alain Muselli
The chemical composition of the essential oils and hydrosol extract from aerial parts of Calendula arvensis L. was investigated using GC-FID and GC/MS. Intra-species variations of the chemical compositions of essential oils from 18 Algerian sample locations were investigated using statistical analysis. Chemical analysis allowed the identification of fifty-three compounds amounting to 92.3-98.5% with yields varied of 0.09-0.36% and the main compounds were zingiberenol 1 (8.7-29.8%), eremoligenol (4.2-12.5%), β-curcumene (2...
January 21, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28106856/green-synthesis-and-characterization-of-palladium-nanoparticles-using-origanum-vulgare-l-extract-and-their-catalytic-activity
#3
Mohammed Rafi Shaik, Zuhur Jameel Qandeel Ali, Mujeeb Khan, Mufsir Kuniyil, Mohamed E Assal, Hamad Z Alkhathlan, Abdulrahman Al-Warthan, Mohammed Rafiq H Siddiqui, Merajuddin Khan, Syed Farooq Adil
The synthesis of Palladium (Pd) nanoparticles by green methods has attracted remarkable attention in recent years because of its superiority above chemical approaches, owing to its low cost and ecological compatibility. In this present work, we describe a facile and environmentally friendly synthesis of Pd nanoparticles (Pd NPs) using an aqueous extract of aerial parts of Origanum vulgare L. (OV) as a bioreductant. This plant is available in many parts of the world as well as in Saudi Arabia and is known to be a rich source of phenolic components, a feature we fruitfully utilized in the synthesis of Pd NPs, using various concentrations of plant extracts...
January 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28106819/modeling-aboveground-biomass-in-hulunber-grassland-ecosystem-by-using-unmanned-aerial-vehicle-discrete-lidar
#4
Dongliang Wang, Xiaoping Xin, Quanqin Shao, Matthew Brolly, Zhiliang Zhu, Jin Chen
Accurate canopy structure datasets, including canopy height and fractional cover, are required to monitor aboveground biomass as well as to provide validation data for satellite remote sensing products. In this study, the ability of an unmanned aerial vehicle (UAV) discrete light detection and ranging (lidar) was investigated for modeling both the canopy height and fractional cover in Hulunber grassland ecosystem. The extracted mean canopy height, maximum canopy height, and fractional cover were used to estimate the aboveground biomass...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106756/inhibitory-effects-of-constituents-from-the-aerial-parts-of-rosmarinus-officinalis-l-on-triglyceride-accumulation
#5
Jian Li, Tiwalade Adegoke Adelakun, Sijian Wang, Jingya Ruan, Shengcai Yang, Xiaoxia Li, Yi Zhang, Tao Wang
Sixteen flavonoids (1-16) including two new ones, named officinoflavonosides A (1) and B (2) were obtained from the aerial parts of Rosmarinus officinalis. Among the known ones, 6, 10, and 13 were isolated from the rosmarinus genus for the first time. Their structures were elucidated by chemical and spectroscopic methods. Moreover, the effects on sodium oleate-induced triglyceride accumulation (TG) in HepG2 cells of the above-mentioned compounds and 16 other isolates (17-32) reported previously to have been obtained in the plant were analyzed...
January 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28103863/pharmacological-profile-of-the-aerial-parts-of-rubus-ulmifolius-schott
#6
Niaz Ali, Mohammad Shaoib, Syed Wadood Ali Shah, Ismail Shah, Muhammad Shuaib
BACKGROUND: As aerial parts of Rubus ulmifolius contains phytochemicals like flavonoids and tannins. And whereas flavonoids and tannins have antioxidant and antipyretic activity, hence, current work is carried out to screen crude methanolic extract of aerial parts of Rubus ulmifolius (Ru.Cr) and crude flavonoids rich extract of Rubus ulmifolius (Ru.F) for possible antioxidant and antipyretic activity. Ru.Cr and Ru.F are also tested for brine shrimps lethality bioassay. Ru.F is tested for the first time for possible antioxidant and antipyretic activity...
January 19, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28103726/antibacterial-activities-of-chemical-constituents-from-the-aerial-parts-of-hedyotis-pilulifera
#7
Hoai Thi Nguyen, Duc Viet Ho, Hung Quoc Vo, Anh Tuan Le, Hien Minh Nguyen, Takeshi Kodama, Takuya Ito, Hiroyuki Morita, Ain Raal
CONTEXT: Hedyotis pilulifera (Pit.) T.N. Ninh (Rubiaceae) has been used in Vietnamese ethnomedicine; the methanol extract exhibited antibacterial activity in our preliminary screening. OBJECTIVES: In this study, compounds from H. pilulifera were isolated and their antibacterial activity in vitro was evaluated. MATERIALS AND METHODS: The aerial parts of H. pilulifera (1.4 kg) were extracted with MeOH, suspended in water and ethyl acetate extract was chromatographed on a silica gel column...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28102323/bacterial-endophyte-communities-of-three-agricultural-important-grass-species-differ-in-their-response-towards-management-regimes
#8
Franziska Wemheuer, Kristin Kaiser, Petr Karlovsky, Rolf Daniel, Stefan Vidal, Bernd Wemheuer
Endophytic bacteria are critical for plant growth and health. However, compositional and functional responses of bacterial endophyte communities towards agricultural practices are still poorly understood. Hence, we analyzed the influence of fertilizer application and mowing frequency on bacterial endophytes in three agriculturally important grass species. For this purpose, we examined bacterial endophytic communities in aerial plant parts of Dactylis glomerata L., Festuca rubra L., and Lolium perenne L. by pyrotag sequencing of bacterial 16S rRNA genes over two consecutive years...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28095927/small-alteration-big-impacts-effects-of-small-scale-riparian-forest-management-on-host-parasite-dynamics-in-streams
#9
C Lagrue, A A Besson, A Lecerf
Environmental changes and ecological disturbances can have large and unpredictable effects on parasite dynamics. Increasing human impacts on freshwater ecosystems through land use may thus modify the distribution and abundance of parasites and have cascading effects on host populations. Here we tested the effects of small-scale riparian forest management on the nematode Cystidicoloides ephemeridarum and its insect intermediate host Ephemera danica in forested streams. We assessed the impacts of harvesting riparian trees on parasite prevalence and abundance concomitantly with host densities...
January 18, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28095328/an-integrated-proteomic-and-transcriptomic-analysis-of-perivitelline-fluid-proteins-in-a-freshwater-gastropod-laying-aerial-eggs
#10
Huawei Mu, Jin Sun, Horacio Heras, Ka Hou Chu, Jian-Wen Qiu
: Proteins of the egg perivitelline fluid (PVF) that surrounds the embryo are critical for embryonic development in many animals, but little is known about their identities. Using an integrated proteomic and transcriptomic approach, we identified 64 proteins from the PVF of Pomacea maculata - a freshwater snail adopting aerial oviposition. Proteins were classified into eight functional groups: major multifunctional perivitellin subunits, immune response, energy metabolism, protein degradation, oxidation-reduction, signaling and binding, transcription and translation, and others...
January 14, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28094028/annual-10-month-aerial-life-phase-in-the-common-swift-apus-apus
#11
Anders Hedenström, Gabriel Norevik, Kajsa Warfvinge, Arne Andersson, Johan Bäckman, Susanne Åkesson
The common swift (Apus apus) is adapted to an aerial lifestyle, where food and nest material are captured in the air. Observations have prompted scientists to hypothesize that swifts stay airborne for their entire non-breeding period [1, 2], including migration into sub-Saharan Africa [3-5]. It is mainly juvenile common swifts that occasionally roost in trees or buildings before autumn migration when weather is bad [1, 6]. In contrast, the North American chimney swift (Chaetura pelagica) and Vaux's swift (C...
November 21, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/28093203/a-compound-scheme-on-parameters-identification-and-adaptive-compensation-of-nonlinear-friction-disturbance-for-the-aerial-inertially-stabilized-platform
#12
Xiangyang Zhou, Beilei Zhao, Wei Liu, Haixiao Yue, Ruixia Yu, Yulong Zhao
A compound scheme is proposed to compensate the effect of nonlinear friction disturbance on the control precision of a three-axis inertially stabilized platform (ISP) for aerial remote sensing applications. The scheme consists of friction parameters identification and adaptive compensation. A LuGre model-based ISP friction model is first developed. Then, a comprehensive experimental scheme is proposed to obtain the static friction parameters. Further, the dynamic parameters are identified by experiments and dynamic optimization...
January 13, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28092983/essential-oil-constituents-and-antimicrobial-activity-of-pycnocycla-bashagardiana-mozaff-from-iran
#13
Ardalan Alizadeh, Hamid Abdollahzadeh
Pycnocycla bashagardiana is a rare endemic and endangered species that has been used in folkloric medicine in Southern Iran. This study aimed to evaluate the essential oil constituents and antimicrobial activity of wild and cultivated p. bashagardiana. The aerial parts of wild and cultivated plants were collected from two provinces of Iran. The essential oil was isolated by hydrodistillation and analyzed by a combination of capillary GC and GC-MS. The main components in wild plants were myristicin (39.12%), (E)-β-ocimene (21...
January 17, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28092170/a-single-molecular-marker-to-distinguish-between-species-of-dioscorea
#14
Natascha Techen, Iffat Parveen, Ikhlas A Khan
Yams are species of the genus Dioscorea (family Dioscoreaceae), which consists of approximately 630 species. The majority of the world production of yams occurs in Africa with 58.8 million t annually, but they are also produced in the Americas and Asia. The saponins in yams have been reported to possess various properties to improve health. The tuber and aerial parts of various species often share morphological similarities, which can cause problems in the proper identification of sample material. For example, the rootstocks and aerial parts of Dioscorea villosa L...
November 3, 2016: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28090664/development-of-a-novel-dual-cd-mekc-system-for-the-systematic-flavonoid-fingerprinting-of-ligaria-cuneifolia-r-et-p-tiegh-loranthaceae-extracts
#15
Cecilia B Dobrecky, Sabrina A Flor, Paula G López, Marcelo L Wagner, Silvia E Lucangioli
The present work deals with the development and validation of a novel dual CD-MEKC system for the systematic flavonoid fingerprinting of Ligaria cuneifolia (R. et P.) Tiegh. -Loranthaceae- extracts. The BGE consisted of 20 mM pH 8.3 borate buffer, 50 mM SDS, a dual CD system based on the combination of 5 mM β-CD and 2% w/v S-β-CD, and 10% v/v methanol. The proposed method has been successfully applied to the comparative analysis of extracts from aerial parts and different hosts, geographical areas and extraction procedures in order to establish the flavonoid fingerprint of L...
January 16, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28089933/hfb7-a-novel-orphan-hydrophobin-of-the-harzianum-and-virens-clades-of-trichoderma-is-involved-in-response-to-biotic-and-abiotic-stresses
#16
Agnes Przylucka, Gunseli Bayram Akcapinar, Komal Chenthamara, Feng Cai, Marica Grujuc, Juriy Karpenko, Miriam Livoi, Qirong Shen, Christian P Kubicek, Irina S Druzhinina
Hydrophobins are small secreted cysteine-rich proteins exclusively found in fungi. They are able to self-assemble in single molecular layers at hydrophobic-hydrophilic interfaces and can therefore be directly involved in establishment of fungi in their habitat. The genomes of filamentous mycotrophic fungi Trichoderma encode a rich diversity of hydrophobins, which are divided in several groups based on their structure and evolution. Here we describe a new member of class II hydrophobins, HFB7, that has a taxonomically restricted occurrence in Harzianum and Virens clades of Trichoderma...
January 12, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28089739/the-influence-of-seasonality-on-the-content-of-goyazensolide-and-on-anti-inflammatory-and-anti-hyperuricemic-effects-of-the-ethanolic-extract-of-lychnophora-passerina-brazilian-arnica
#17
Bruno César de Albuquerque Ugoline, Jacqueline de Souza, Fernanda Cristina Ferrari, Zilma Schimith Ferraz Filha, Grazielle Brandão Coelho, Dênia Antunes Saúde-Guimarães
ETHNOPHARMACOLOGICAL RELEVANCE: Lychnophora passerina (Mart ex DC) Gardn (Asteraceae), popularly known as Brazilian arnica, is used in Brazilian folk medicine to treat pain, rheumatism, bruises, inflammatory diseases and insect bites. AIM OF THE STUDY: Investigate the influence of the seasons on the anti-inflammatory and anti-hyperuricemic activities of ethanolic extract of L. passerina and the ratio of the goyazensolide content, main chemical constituent of the ethanolic extract, with these activities...
January 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28078243/ethnobotanical-knowledge-of-apiaceae-family-in-iran-a-review
#18
REVIEW
Mohammad Sadegh Amiri, Mohammad Reza Joharchi
OBJECTIVE: Apiaceae (Umbelliferae) family is one of the biggest plant families on the earth. Iran has a huge diversity of Apiaceae members. This family possesses a range of compounds that have many biological activities. The members of this family are well known as vegetables, culinary and medicinal plants. Here, we present a review of ethnobotanical uses of Apiaceae plants by the Iranian people in order to provide a comprehensive documentation for future investigations. MATERIALS AND METHODS: We checked scientific studies published in books and journals in various electronic databases (Medline, PubMed, Science Direct, Scopus and Google Scholar websites) from 1937 to 2015 and reviewed a total of 52 publications that provided information about different applications of these plant species in human and livestock...
November 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/28076987/antioxidant-activity-and-cholinesterase-inhibition-studies-of-four-flavouring-herbs-from-alentejo
#19
Sílvia Arantes, Andreia Piçarra, Fátima Candeias, A Teresa Caldeira, M Rosário Martins
Essential oils (EOs) and aqueous extracts of aerial parts of four aromatic species, Calamintha nepeta, Foeniculum vulgare, Mentha spicata and Thymus mastichina, from southwest of Portugal were characterised chemically and analysed in order to evaluate their antioxidant potential and cholinesterase inhibitory activities. The main components of EOs were oxygenated monoterpenes, and aqueous extracts were rich in phenol and flavonoid compounds. EOs and aqueous extracts presented a high antioxidant potential, with ability to protect the lipid substrate, free radical scavenging and iron reducing power...
January 11, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28076313/ethnopharmacological-investigation-of-the-aerial-part-of-phragmites-karka-poaceae
#20
Ramiz Ahmed Sultan, Mohammad Shah Hafez Kabir, Mir Muhammad Nasir Uddin, Mohi Uddin, Zobaer Al Mahmud, Sheikh Zahir Raihan, Nazmul Qais
BACKGROUND: In this ethnopharmacological study, methanolic extract of the aerial plant parts of Phragmites karka (Family: Poaceae) and its petroleum ether and carbon tetrachloride fractions were investigated for bioactivities in Swiss-albino mice, namely, analgesic, central nervous system (CNS) depressant, hypoglycemic, and antidiarrheal activity. METHODS: The cold methanolic extract of the aerial plant parts of Phragmites karka (MEPK) was first prepared, and it was then further fractionated as petroleum ether (PEFMEPK) and carbon tetrachloride (CTFMEPK) fractions...
January 11, 2017: Journal of Basic and Clinical Physiology and Pharmacology
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