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https://www.readbyqxmd.com/read/29474430/evidence-for-chemical-interference-effect-of-an-allelopathic-plant-on-neighboring-plant-species-a-field-study
#1
Antonio I Arroyo, Yolanda Pueyo, M Luz Giner, Ana Foronda, Pedro Sanchez-Navarrete, Hugo Saiz, Concepción L Alados
Many studies have reported the phytotoxicity of allelopathic compounds under controlled conditions. However, more field studies are required to provide realistic evidences for the significance of allelopathic interference in natural communities. We conducted a 2-years field experiment in a semiarid plant community (NE Spain). Specifically, we planted juvenile individuals and sowed seeds of Salsola vermiculata L., Lygeum spartum L. and Artemisia herba-alba Asso. (three co-dominant species in the community) beneath adult individuals of the allelopathic shrub A...
2018: PloS One
https://www.readbyqxmd.com/read/29468903/a-new-benzofuran-from-artemisia-halodendron-turcz-ex-bess
#2
Jinfeng Sun, Wei Zhou, Cheng-Xi Wei, Zhihong Zhang, Xuejun Jin, Gao Li
A new benzofuran, methyl (2S,2″S,3'E)-[2-(1″-acetoxypropan-2-yl)-2,3-dihydrobenzofuran-5-yl]acrylate (1), and 13 known compounds (2-14) were isolated from an ethanol extract of Artemisia halodendron Turcz. ex Bess. The chemical structures of these compounds were determined by 1D and 2D NMR (1 H-1 H COSY, HMBC, HMQC and NOESY) and HR-ESI-MS spectra, and results were compared with data from the literature. The effects of compounds 1-14 were measured on NF-κB activation, with compounds 2 and 3 exhibiting inhibitory activities against TNF-α-induced NF-κB reporter gene expression in HeLa cells from 10 to 100 μM...
February 22, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29467423/transcriptome-changes-induced-by-abiotic-stresses-in-artemisia-annua
#3
Divya Vashisth, Ritesh Kumar, Shubhra Rastogi, Vikas Kumar Patel, Alok Kalra, Madan Mohan Gupta, Anil Kumar Gupta, Ajit Kumar Shasany
Artemisia annua is known to be the source of artemisinin worldwide which is an antimalarial compound but is synthesised in very limited amount in the plant. Most research laid emphasis on the methods of enhancing artemisinin but our study has been planned in a way that it may simultaneously address two problems encountered by the plant. Firstly, to know the effect on the artemisinin content in the era of climate change because the secondary metabolites tend to increase under stress. Secondly, to identify some of the stress responsive genes that could help in stress tolerance of the plant under abiotic stress...
February 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29465820/literally-green-chemical-synthesis-of-artemisinin-from-plant-extracts
#4
Susann Triemer, Kerry Gilmore, Giang T Vu, Peter H Seeberger, Andreas Seidel-Morgenstern
Active pharmaceutical ingredients are either extracted from biological sources - where they are synthesized in complex, dynamic environments - or prepared via step-wise chemical syntheses by reacting pure reagents and catalysts under controlled conditions. A combination of these two approaches, where plant extracts containing reagents and catalysts are utilized in intensified chemical syntheses, creates expedient and sustainable processes. We illustrate the principle by reacting crude plant extract, oxygen, acid, and light to produce artemisinin, a key active pharmaceutical ingredient of the most powerful anti-malaria drugs...
February 21, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29459314/the-desert-wormwood-artemisia-herba-alba-from-arabian-folk-medicine-to-a-source-of-green-and-effective-nanoinsecticides-against-mosquito-vectors
#5
Al Thabiani Aziz, Mohammed Ali Alshehri, Chellasamy Panneerselvam, Kadarkarai Murugan, Subrata Trivedi, Jazem A Mahyoub, Mo'awia Mukhtar Hassan, Filippo Maggi, Stefania Sut, Stefano Dall'Acqua, Angelo Canale, Giovanni Benelli
The development of eco-friendly and effective insecticides is crucial for public health worldwide. Herein, we focused on the desert wormwood (Artemisia herba-alba), a plant widely used in Arabian traditional medicine, as a source of green nanoinsecticides against mosquito vectors, as well as growth inhibitors to be employed against microbial pathogens. Ag nanoparticles (AgNPs) fabricated with the A. herba-alba extract were tested on Indian and Saudi Arabian strains of Anopheles, Aedes and Culex mosquitoes. The chemical profile of the A...
February 11, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29456380/moxibustion-artemisia-plant-at-acupuncture-point-as-alternative-therapy-in-hypertension-a-promising-approach
#6
Mohammad Jamshed Siddiqui, Mohamad Fadly Bin Kamarudin, Abdul Kareem Mohammed Al-Shami, Siti Zaiton Mat So'ad, Shazia Qasim Jamshed
Hypertension is a pathological condition in which the blood pressure is higher than under normal physiological conditions, i.e., 140/90 mmHg or higher. Blood pressure is measured as the force exerted by the blood pumped by the heart against the walls of arteries (aorta) and distributed throughout the body. Use of complementary and alternative medicine as a cure for hypertension is a common phenomenon because of the high risk of cardiovascular complications and kidney diseases caused by conventional Western medicine...
October 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29447950/ethnobotanical-and-ethnomedicinal-studies-in-baluchi-tribes-a-case-study-in-mt-taftan-southeastern-iran
#7
Tahereh Maleki, Hossein Akhani
ETHNOBOTANICAL RELEVANCE: From ancient times, the applied use of herbs has been common among indigenous people throughout the world. The present survey is a regional ethnobotanical study of Baluchi tribes living in the Mt. Taftan area, Sistan and Baluchistan Province, southeastern Iran. The aim of this study was to document all traditional knowledge and analyze the medicinal plants used in area and also to identify significant plant species for future pharmacological study. MATERIALS AND METHODS: Local knowledge was obtained through semi structured and open interviews, in which 51 informants were interviewed...
February 12, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29445390/approaches-and-recent-developments-for-the-commercial-production-of-semi-synthetic-artemisinin
#8
REVIEW
Stephanie H Kung, Sean Lund, Abhishek Murarka, Derek McPhee, Chris J Paddon
The antimalarial drug artemisinin is a natural product produced by the plant Artemisia annua . Extracts of A. annua have been used in Chinese herbal medicine for over two millennia. Following the re-discovery of A. annua extract as an effective antimalarial, and the isolation and structural elucidation of artemisinin as the active agent, it was recommended as the first-line treatment for uncomplicated malaria in combination with another effective antimalarial drug (Artemisinin Combination Therapy) by the World Health Organization (WHO) in 2002...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29445343/medicinal-plants-from-near-east-for-cancer-therapy
#9
REVIEW
Mohammad S Abu-Darwish, Thomas Efferth
Background: Cancer is one of the major problems affecting public health worldwide. As other cultures, the populations of the Near East rely on medicinal herbs and their preparations to fight cancer. Methods: We compiled data derived from historical ethnopharmacological information as well as in vitro and in vivo results and clinical findings extracted from different literature databases including (PubMed, Scopus, Web of Science, and Google Scholar) during the past two decades. Results: In this survey, we analyzed the huge amount of data available on anticancer ethnopharmacological sources used in the Near East...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29435244/dominant-plant-species-shape-soil-bacterial-community-in-semiarid-sandy-land-of-northern-china
#10
Shaokun Wang, Xiaoan Zuo, Xueyong Zhao, Tala Awada, Yongqing Luo, Yuqiang Li, Hao Qu
Plant species affect soil bacterial diversity and compositions. However, little is known about the role of dominant plant species in shaping the soil bacterial community during the restoration of sandy grasslands in Horqin Sandy Land, northern China. We established a mesocosm pots experiment to investigate short-term responses of soil bacterial diversity and composition, and the related soil properties in degraded soils without vegetation (bare sand as the control, CK) to restoration with five plant species that dominate across restoration stages: Agriophyllum squarrosum (AS), Artemisia halodendron (AH), Setaria viridis (SV), Chenopodium acuminatum (CA), and Corispermum macrocarpum (CM)...
February 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29421510/relationship-between-chemotypic-and-genetic-diversity-of-natural-populations-of-artemisia-herba-alba-asso-growing-wild-in-tunisia
#11
Faten Younsi, Najoua Rahali, Sameh Mehdi, Mohamed Boussaid, Chokri Messaoud
A total of 80 individuals collected from eight populations growing wild in different geographic zones were considered to assess the intraspecific variability of essential oil composition, genetic diversity and population structure of Artemisia herba-alba. The essential oil composition varied significantly between populations. Essential oil profiles were classified into four chemotypes (trans-sabinyl acetate, α-thujone/trans-sabinyl acetate, camphor and α-thujone/camphor/β-thujone). Despite significant correlation between the amount of some essential oil compounds and a set of climatic data, the global chemical divergence among populations was not related to their bioclimatic and geographic appurtenances...
February 1, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29417231/the-effect-of-technogenic-emissions-on-the-heavy-metals-accumulation-by-herbaceous-plants
#12
Victor Chaplygin, Tatiana Minkina, Saglara Mandzhieva, Marina Burachevskaya, Svetlana Sushkova, Evgeniy Poluektov, Elena Antonenko, Valentina Kumacheva
The effect of technogenic emissions on the input of Pb, Zn, Cd, Cu, Mn, Cr, and Ni into plants from the Poaceae and Asteraceae families has been studied. Soil and plant contamination by anthropogenic emissions from industrial enterprises leads the decreasing of crop quality; therefore, the monitoring investigation of plants and soils acquires special importance. The herbaceous plants may be used as bioindicators for main environmental changes. It was found that the high level of anthropogenic load related to atmospheric emissions from the power plant favors the heavy metal (HM) accumulation in herbaceous plants...
February 7, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29416559/a-systematic-optimization-of-styrene-biosynthesis-in-escherichia-coli-bl21-de3
#13
Changqing Liu, Xiao Men, Hailin Chen, Meijie Li, Zhaorui Ding, Guoqiang Chen, Fan Wang, Haobao Liu, Qian Wang, Youshuang Zhu, Haibo Zhang, Mo Xian
Background: Styrene is a versatile commodity petrochemical used as a monomer building-block for the synthesis of many useful polymers. Although achievements have been made on styrene biosynthesis in microorganisms, several bottleneck problems limit factors for further improvement in styrene production. Results: A two-step styrene biosynthesis pathway was developed and introduced into Escherichia coli BL21(DE3). Systematic optimization of styrene biosynthesis, such as enzyme screening, codon and plasmid optimization, metabolic flow balance, and in situ fermentation was performed...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29414844/efficacy-of-compounds-isolated-from-the-essential-oil-of-artemisia-lavandulaefolia-in-control-of-the-cigarette-beetle-lasioderma-serricorne
#14
Jun Zhou, Kexing Zou, Wenjuan Zhang, Shanshan Guo, Hong Liu, Jiansheng Sun, Jigang Li, Dongye Huang, Yan Wu, Shushan Du, Almaz Borjigidai
To develop natural product resources to control cigarette beetles (Lasioderma serricorne), the essential oil from Artemisia lavandulaefolia (Compositae) was investigated. Oil was extracted by hydrodistillation of the above-ground portion of A. lavandulaefolia and analyzed using gas chromatography-mass spectrometer (GC-MS). Extracted essential oil and three compounds isolated from the oil were then evaluated in laboratory assays to determine the fumigant, contact, and repellent efficacy against the stored-products' pest, L...
February 7, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29407473/concentration-of-lead-and-mercury-in-collected-vegetables-and-herbs-from-markazi-province-iran-non-carcinogenic-risk-assessment
#15
Bahareh Ghasemidehkordi, Ali Akbar Malekirad, Habibollah Nazem, Mohammad Fazilati, Hossein Salavati, Nabi Shariatifar, Mohammad Rezaei, Amin Mousavi Khaneghah, Yadolah Fakhri
The current study was undertaken to determine the concentration of Hg and Pb in ten types of collected green leafy vegetables and herbs from different agricultural sites of Markazi province, Iran as well as the gathered water and soil around them using inductively coupled plasma-optical emission spectroscopy (ICP-OES). Also, the potential health risk assessment by using target hazard quotient (THQ) and hazard index (HI) parameters was estimated. Based on the accumulation order, Artemisia dracunculus L with 56...
January 30, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29407088/programmed-ventricular-stimulation-predicts-arrhythmic-events-and-survival-in-hypertrophic-cardiomyopathy
#16
Konstantinos A Gatzoulis, Stavros Georgopoulos, Christos-Konstantinos Antoniou, Aris Anastasakis, Polychronis Dilaveris, Petros Arsenos, Skevos Sideris, Dimitris Tsiachris, Stefanos Archontakis, Elias Sotiropoulos, Artemisia Theopistou, Ioannis Skiadas, Ioannis Kallikazaros, Christodoulos Stefanadis, Dimitrios Tousoulis
BACKGROUND: Sudden cardiac death (SCD) risk stratification in hypertrophic cardiomyopathy (HCM) in the context of primary prevention remains suboptimal. The purpose of this study was to examine the additional contribution of programmed ventricular stimulation (PVS) on established risk assessment. METHODS: Two-hundred-and-three consecutive patients with diagnosed HCM and ≥1 noninvasive risk factors were prospectively enrolled over 19years. Patients were risk stratified, submitted to PVS and received an implantable cardioverter-defibrillator (ICD) according to then-current American Heart Association (AHA) guidelines and inducibility...
March 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29390030/a-test-for-clinal-variation-in-artemisia-californica-and-associated-arthropod-responses-to-nitrogen-addition
#17
Maria M Meza-Lopez, Kailen A Mooney, Amanda L Thompson, Nicole K Ho, Jessica D Pratt
The response of plant traits to global change is of fundamental importance to understanding anthropogenic impacts on natural systems. Nevertheless, little is known about plant genetic variation in such responses or the indirect effect of environmental change on higher trophic levels. In a three-year common garden experiment, we grew the shrub Artemisia californica from five populations sourced along a 700 km latitudinal gradient under ambient and nitrogen (N) addition (20 kg N ha-1) and measured plant traits and associated arthropods...
2018: PloS One
https://www.readbyqxmd.com/read/29387574/antioxidant-and-hepatoprotective-effects-of-artemisia-dracunculus-against-ccl4-induced-hepatotoxicity-in-rats
#18
Vahid Zarezade, Jalal Moludi, Mostafa Mostafazadeh, Mohammad Mohammadi, Ali Veisi
Objective: The present study was conducted to investigate the antioxidant and hepatoprotective activity of the hydro-alcoholic extract of aerial parts of Artemisiadracunculus (HAAD) against CCl4-induced hepatotoxicity in rats. Materials and Methods: The antioxidant activity was evaluated by reducing power, 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and 2, 20-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays. Rats were pre-treated with either 50, 100, and 200 mg/kg of HAAD or silymarin (100 mg/kg; served as the positive control group) for 15 days and they received a single dose of CCl4 on the last day...
January 2018: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/29383435/fibrolipomatous-hamartomas-of-the-median-nerve-in-infancy-and-early-childhood-imaging-hallmarks-symptomatology-and-treatment
#19
Humphrey Okechi, Artemisia Dimostheni, Susanne R Kerscher, Isabel Gugel, Andrea Bevot, Juergen F Schaefer, Martin U Schuhmann
A fibrolipomatous hamartoma (FLH) is a rare lesion leading to an enlargement of the affected nerve and commonly manifests at the median nerve. Symptomatic patients are mostly adolescents or adults. In children below 10 years, this entity is rather unknown and likely to be misdiagnosed. We report three children with FLH, two severely and one mildly symptomatic, all below 4 years of age at the time of first presentation. Two of three children were initially misdiagnosed. We provide a review of the pertinent clinical and radiological findings of the entity...
January 30, 2018: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29382076/fungi-as-endophytes-in-artemisia-thuscula-juxtaposed-elements-of-diversity-and-phylogeny
#20
Andreea Cosoveanu, Samuel Rodriguez Sabina, Raimundo Cabrera
Artemisia is a plant genus highly studied for its medicinal applications. The studies on the associated fungal endophytes are scarce. Ten plants specimens of Artemisia thuscula from Tenerife and La Palma were sampled to isolate the endophytic fungi. Identification of the endophytic fungi was based on morphology, Internal Transcribed Spacer (ITS) and Large Subunit (LSU) regions sequencing and indicates 37 fungal species affiliated to 25 fungal genera. Colonization rate varied among plants (CR = 25% to 92.11%)...
January 27, 2018: Journal of Fungi (Basel, Switzerland)
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