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https://www.readbyqxmd.com/read/28103281/selection-of-native-tree-species-for-subtropical-forest-restoration-in-southwest-china
#1
Yang Lu, Sailesh Ranjitkar, Rhett D Harrison, Jianchu Xu, Xiaokun Ou, Xuelan Ma, Jun He
The use of native species in forest restoration has been increasingly recognized as an effective means of restoring ecosystem functions and biodiversity to degraded areas across the world. However, successful selection of species adapted to local conditions requires specific knowledge which is often lacking, especially in developing countries. In order to scale up forest restoration, experimental data on the responses of native species to propagation and restoration treatments across a range of local conditions are required...
2017: PloS One
https://www.readbyqxmd.com/read/28103271/early-stages-of-sea-level-rise-lead-to-decreased-salt-marsh-plant-diversity-through-stronger-competition-in-mediterranean-climate-marshes
#2
Akana E Noto, Jonathan B Shurin
Climate change shuffles species ranges and creates novel interactions that may either buffer communities against climate change or exacerbate its effect. For instance, facilitation can become more prevalent in salt marshes under stressful conditions while competition is stronger in benign environments. Sea-level rise (SLR) is a consequence of climate change that affects the distribution of stress from inundation and salinity. To determine how interactions early in SLR are affected by changes in these two stressors in Mediterranean-climate marshes, we transplanted marsh turfs to lower elevations to simulate SLR and manipulated cover of the dominant plant species, Salicornia pacifica (formerly Salicornia virginica)...
2017: PloS One
https://www.readbyqxmd.com/read/28102542/silicon-promotes-cytokinin-biosynthesis-and-delays-senescence-in-arabidopsis-and-sorghum
#3
Oshry Markovich, Evyatar Steiner, Štěpán Kouřil, Petr Tarkowski, Asaph Aharoni, Rivka Elbaum
Silicate minerals are dominant soil components. Thus, plant roots are constantly exposed to silicic acid. High silicon intake, enabled by root silicon transporters, correlates with increased tolerance to many biotic and abiotic stresses. However, the underlying protection mechanisms are largely unknown. Here, we tested the hypothesis that silicon interacts with the plant hormones, and specifically, that silicic acid intake increases cytokinin biosynthesis. The reaction of sorghum (Sorghum bicolor) and Arabidopsis plants, modified to absorb high versus low amounts of silicon, to dark-induced senescence was monitored, by quantifying expression levels of genes along the senescence pathway and measuring tissue cytokinin levels...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28102497/regulated-partitioning-of-fixed-carbon-14-c-sodium-na-potassium-k-and-glycine-betaine-determined-salinity-stress-tolerance-of-gamma-irradiated-pigeonpea-cajanus-cajan-l-millsp
#4
Pankaj Kumar, Vasundhara Sharma, Chobhe Kapil Atmaram, Bhupinder Singh
Soil salinity is a major constraint that limits legume productivity. Pigeonpea is a salt sensitive crop. Seed gamma irradiation at a very low dose (2.5 Gy) is known to enhance seedling establishment, plant growth and yield of cereals and other crops. The present study conducted using two genetically diverse varieties of pigeonpea viz., Pusa-991 and Pusa-992 aimed at establishing the role of pre-sowing seed gamma irradiation at 0, 0.0025, 0.005, 0.01, 0.02, 0.05 and 0.1 kGy on plant growth, seed yield and seed quality under salt stress at 0, 80 and 100 mM NaCl (soil solution EC equivalent 1...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28102304/local-melatonin-application-induces-cold-tolerance-in-distant-organs-of-citrullus-lanatus-l-via-long-distance-transport
#5
Hao Li, Jingjing Chang, Junxian Zheng, Yuchuan Dong, Qiyan Liu, Xiaozhen Yang, Chunhua Wei, Yong Zhang, Jianxiang Ma, Xian Zhang
Melatonin is a ubiquitous chemical substance that regulates plant growth and responses to stress. Several recent studies show that exogenous melatonin confers cold tolerance to plants; however, the underlying mechanisms remain largely unknown. Here, we report that melatonin application at optimal dose, either on the leaves or the roots, not only induced cold stress tolerance in the site of application, but also systemically induced cold tolerance in untreated distant parts. Foliar or rhizospheric treatment with melatonin increased the melatonin levels in untreated roots or leaves, respectively, under both normal and cold stress conditions, whereas rhizospheric melatonin treatment increased the melatonin exudation rates from the xylem...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102286/chelerythrine-down-regulates-expression-of-vegfa-bcl2-and-kras-by-arresting-g-quadruplex-structures-at-their-promoter-regions
#6
Jagannath Jana, Soma Mondal, Payel Bhattacharjee, Pallabi Sengupta, Tanaya Roychowdhury, Pranay Saha, Pallob Kundu, Subhrangsu Chatterjee
A putative anticancer plant alkaloid, Chelerythrine binds to G-quadruplexes at promoters of VEGFA, BCL2 and KRAS genes and down regulates their expression. The association of Chelerythrine to G-quadruplex at the promoters of these oncogenes were monitored using UV absorption spectroscopy, fluorescence anisotropy, circular dichroism spectroscopy, CD melting, isothermal titration calorimetry, molecular dynamics simulation and quantitative RT-PCR technique. The pronounced hypochromism accompanied by red shifts in UV absorption spectroscopy in conjunction with ethidium bromide displacement assay indicates end stacking mode of interaction of Chelerythrine with the corresponding G-quadruplex structures...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101901/cyto-genotoxicity-and-oxidative-stress-in-common-carp-cyprinus-carpio-exposed-to-a-mixture-of-ibuprofen-and-diclofenac
#7
Hariz Islas-Flores, Leobardo Manuel Gómez-Oliván, Marcela Galar-Martínez, Esmeralda Michelle Sánchez-Ocampo, Nely SanJuan-Reyes, Mariana Ortíz-Reynoso, Octavio Dublán-García
Thirty million people worldwide consume each day nonsteroidal anti-inflammatory drugs (NSAIDs), a heterogeneous group of pharmaceuticals used for its analgesic, antipyretic, and anti-inflammatory properties. Recent studies report high NSAID concentrations in wastewater treatment plant effluents, in surface, ground, and drinking water, and in sediments. NSAIDs are also known to induce toxicity on aquatic organisms. However, toxicity in natural ecosystems is not usually the result of exposure to a single substance but to a mixture of toxic agents, yet only a few studies have evaluated the toxicity of mixtures...
January 19, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28101737/spatholobus-suberectus-dunn-constituents-inhibit-sortase-a-and-staphylococcus-aureus-cell-clumping-to-fibrinogen
#8
Hyunjoo Cho, Beomkoo Chung, Chang-Kwon Kim, Dong-Chan Oh, Ki-Bong Oh, Jongheon Shin
Sortases are a family of Gram-positive transpeptidases responsible for anchoring surface protein virulence factors to the peptidoglycan cell wall layer. In Staphylococcus aureus (S. aureus), deletion of sortase isoform results in a significant reduction in virulence and infection potential. Twenty flavonoids were isolated from the stem of the folk medicinal plant Spatholobus suberectus Dunn. These compounds were tested against S. aureus-derived sortase A (SrtA), a key transpeptidase for bacterial virulence...
January 18, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28101706/comparative-assessment-of-leca-and-spartina-maritima-to-remove-emerging-organic-contaminants-from-wastewater
#9
Ana Rita Ferreira, Paula Guedes, Eduardo P Mateus, Alexandra B Ribeiro, Nazaré Couto
The present work aimed to evaluate the capacity of constructed wetlands (CWs) to remove three emerging organic contaminants with different physicochemical properties: caffeine (CAF), oxybenzone (MBPh), and triclosan (TCS). The simulated CWs were set up with a matrix of light expanded clay aggregates (LECA) and planted with Spartina maritima, a salt marsh plant. Controlled experiments were carried out in microcosms using deionized water and wastewater collected at a wastewater treatment plant (WWTP), with different contaminant mass ranges, for 3, 7, and 14 days...
January 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28101667/impact-of-an-arbuscular-mycorrhizal-fungus-versus-a-mixed-microbial-inoculum-on-the-transcriptome-reprogramming-of-grapevine-roots
#10
Raffaella Balestrini, Alessandra Salvioli, Alessandra Dal Molin, Mara Novero, Giovanni Gabelli, Eleonora Paparelli, Fabio Marroni, Paola Bonfante
Grapevine, cultivated for both fruit and beverage production, represents one of the most economically important fruit crops worldwide. With the aim of better understanding how grape roots respond to beneficial microbes, a transcriptome sequencing experiment has been performed to evaluate the impact of a single arbuscular mycorrhizal (AM) fungal species (Funneliformis mosseae) versus a mixed inoculum containing a bacterial and fungal consortium, including different AM species, on Richter 110 rootstock. Results showed that the impact of a single AM fungus and of a complex microbial inoculum on the grapevine transcriptome differed...
December 27, 2016: Mycorrhiza
https://www.readbyqxmd.com/read/28101580/crude-extract-and-solvent-fractions-of-calystegia-soldanella-induce-g1-and-s%C3%A2-phase-arrest-of-the-cell-cycle-in-hepg2-cells
#11
Jung Im Lee, In-Hye Kim, Taek-Jeong Nam
The representative halophyte Calystegia soldanella (L) Roem. et Schult is a perennial vine herb that grows in coastal dunes throughout South Korea as well as in other regions around the world. This plant has long been used as an edible and medicinal herb to cure rheumatic arthritis, sore throat, dropsy, and scurvy. Some studies have also shown that this plant species exhibits various biological activities. However, there are few studies on cytotoxicity induced by C. soldanella treatment in HepG2 human hepatocellular carcinoma cells...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101569/resveratrol-inhibits-adventitial-fibroblast-proliferation-and-induces-cell-apoptosis-through-the-sirt1-pathway
#12
Lin Ling, Shaohua Gu, Yan Cheng
Atherosclerosis is one of the most important causes of cardiovascular disease and studies have showed that adventitial fibroblasts, which are considered to be the most common cell type of the vascular adventitia, are involved in the development of early atherosclerotic plaques. Resveratrol is a plant polyphenolic compound confirmed to have anti‑atherosclerotic and cardioprotective effects. The aim of the present study was to investigate the effects of resveratrol on adventitial fibroblasts in vitro and to clarify the underlying mechanism...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28101351/pro-inflammatory-effect-of-a-traditional-chinese-medicine-formula-with-potent-anti-cancer-activity-in-vitro-impedes-tumor-inhibitory-potential-in-vivo
#13
Lei Xia, Maksym Plachynta, Tangjingjun Liu, Xiao Xiao, Jialei Song, Xiaogang Li, Mu Zhang, Yao Yao, Heng Luo, Xiaojiang Hao, Yaacov Ben-David
Medicinal formulas are a part of the complex discipline of traditional Chinese medicine that has been used for centuries in China and East Asia. These formulas predominantly consist of the extracts isolated from herbal plants, animal parts and medicinal minerals. The present study aimed to investigate the impact of 150 formulas, used as non-prescription drugs in China, on the treatment of cancer. A formula was identified, C54, commonly used to treat sore throats, which exhibited marked growth inhibition in vitro, associated with cell cycle arrest and apoptosis...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28101223/modulatory-effect-of-luteolin-on-redox-homeostasis-and-inflammatory-cytokines-in-a-mouse-model-of-liver-cancer
#14
Qiang Zhang, Jie Yang, Jun Wang
Liver cancer is one of the leading causes of cancer-associated mortality worldwide. Due to changes in lifestyle and daily exposure to various chemicals, which may lead to chemical intoxication, liver cancer has become a prominent disease in humans. Chemical-induced carcinogenesis in experimental animals has become a reliable model for the investigation of liver cancer-associated biological alterations that may mimic human hepatic cancer. Liver cancer in BALB/c mice was induced by administering diethylnitrosamine (DN) in drinking water for 6 weeks...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100218/antiviral-effect-of-compounds-derived-from-the-seeds-of-mammea-americana-and-tabernaemontana-cymosa-on-dengue-and-chikungunya-virus-infections
#15
Cecilia Gómez-Calderón, Carol Mesa-Castro, Sara Robledo, Sergio Gómez, Santiago Bolivar-Avila, Fredyc Diaz-Castillo, Marlen Martínez-Gutierrez
BACKGROUND: The transmission of Dengue virus (DENV) and Chikungunya virus (CHIKV) has increased worldwide, due in part to the lack of a specific antiviral treatment. For this reason, the search for compounds with antiviral potential, either as licensed drugs or in natural products, is a research priority. The objective of this study was to identify some of the compounds that are present in Mammea americana (M. americana) and Tabernaemontana cymosa (T. cymosa) plants and, subsequently, to evaluate their cytotoxicity in VERO cells and their potential antiviral effects on DENV and CHIKV infections in those same cells...
January 18, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28100199/antioxidant-and-hepatoprotective-potential-of-lawsonia-inermis-l-leaves-against-2-acetylaminofluorene-induced-hepatic-damage-in-male-wistar-rats
#16
Manish Kumar, Paramjeet Kaur, Madhu Chandel, Amrit Pal Singh, Arpana Jain, Satwinderjeet Kaur
BACKGROUND: Lawsonia inermis (Lythraceae) is an ethnomedicinal plant, traditionally known for curing several ailments such as skin diseases, bacterial infections, jaundice, renal lithiases and inflammation etc. The present work deals with assessment of in vitro antioxidant and in vivo hepatoprotective potential of butanolic fraction (But-LI) of Lawsonia inermis L. leaves. METHODS: Antioxidant activity was evaluated using deoxyribose degradation, lipid peroxidation inhibition and ferric reducing antioxidant power (FRAP) assay...
January 18, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28099876/antitumoral-activity-of-sesquiterpene-lactone-diacethylpiptocarphol-in-mice
#17
Fronza Alezandre, Sabel Ricardo, Carrenho Luise Zozula Blind, Pollo Luis, Bratti Letícia de Oliveira Souza, Monteiro Fabíola Branco Filippin, Biavatti Maique Weber, Kreuger Maria Regina Orofino
ETHNOPHARMACOLOGICAL RELEVANCE: Sesquiterpene lactones are organic compounds derived from plants that exhibit anti-inflammatory and antitumor activities being one of the locking mechanisms of action of NF-kB pathway and synthesis of cytokines such as IL-1 and TNF- α. AIM OF THE STUDY: The overall objective of the present study was to evaluate the antitumor activity of the sesquiterpene lactone diacethylpiptocarphol (DPC) from Vernonia scorpioides (Lam.) Pers. in animal models Ehrlich tumors that has shown antitumor activity...
January 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28099364/endoscopic-retrieval-of-gastric-trichophytobezoar-case-report-of-a-12-year-old-girl-with-trichophagia
#18
Jiu-Ling Zhao, Wei-Chuan Zhao, Yu-Shui Wang
RATIONALE: Trichophytobezoars, which are composed of hair and plant fibers, are usually located in the stomach. They are often associated with trichophagia and trichotillomania. The most commonly reported methods of trichophytobezoar treatment are open surgery and laparoscopic retrieval; there are few reports of endoscopic removal of trichophytobezoars. PATIENT CONCERNS AND DIAGNOSES: Twelve-year-old girl presented with a 3-day history of increasing upper abdominal pain, anorexia, and postprandial emesis...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099306/nonoperatively-corrected-clubfoot-at-age-2-years-radiographs-are-not-helpful-in-predicting-future-relapse
#19
B Stephens Richards, Shawne Faulks, Ozan Razi, Amanda Moualeu, Chan-Hee Jo
BACKGROUND: Nonoperative treatment of idiopathic clubfoot is standard. The purpose of this study was to determine if measurements made on standing lateral radiographs of successfully treated clubfeet made at 18 to 24 months of age were predictive of late recurrence. METHODS: Inclusion criteria were idiopathic clubfoot with an age at presentation of ≤3 months, nonoperative treatment resulting in a clinically plantigrade foot at 2 years of age, standing lateral radiograph of the involved foot made at 18 to 24 months of age, and a minimum age of 4 years at the time of follow-up...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28098903/vitexin-alleviates-lipopolysaccharide%C3%A2-induced-islet-cell-injury-by-inhibiting-hmgb1-release
#20
Feifei Wang, Jiajing Yin, Yujin Ma, Hongwei Jiang, Yanbo Li
Diabetes mellitus (DM) is a chronic metabolic disease, where the predominant pathogenesis is pancreatic β‑cells dysfunction or injury. It has been well established that inflammation leads to a gradual exhaustion of pancreatic β‑cell function with decreased β‑cell mass likely resulting from pancreatic β‑cells apoptosis or death. Vitexin, a major bioactive flavonoid compound in plants has numerous pharmacological properties, including antioxidant, anti‑inflammatory and antimyeloperoxidase. Whether vitexin can protect pancreatic β‑cells against lipopolysaccharide (LPS)‑induced pro‑inflammatory cytokine production and apoptosis has received little attention...
January 12, 2017: Molecular Medicine Reports
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