keyword
MENU ▼
Read by QxMD icon Read
search

Weeds

keyword
https://www.readbyqxmd.com/read/27899534/substituted-pthalimide-ac94377-is-a-selective-agonist-of-the-gibberellin-receptor-gid1
#1
Kai Jiang, Masato Otani, Hiroaki Shimotakahara, Jung-Min Yoon, Seung-Hyun Park, Tomoko Miyaji, Takeshi Nakano, Hidemitsu Nakamura, Masatoshi Nakajima, Tadao Asami
Gibberellin (GA) is a major plant hormone that regulates plant growth and development, and is widely used as a plant growth regulator in agricultural production. There is an increasing demand for function-limited GA mimics due to the limitations on the agronomical application of GA to crops, including GA's high cost of producing and its leading to the crops' lodging. AC94377, a substituted phthalimide, is a chemical that mimics the growth-regulating activity of GAs in various plants, despite its structural difference...
November 29, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27899326/complete-plastid-genome-sequence-of-goosegrass-eleusine-indica-and-comparison-with-other-poaceae
#2
Hui Zhang, Nathan Hall, J Scott McElroy, Elijah K Lowe, Leslie R Goertzen
Eleusine indica, also known as goosegrass, is a serious weed in at least 42 countries. In this paper we report the complete plastid genome sequence of goosegrass obtained by de novo assembly of paired-end and mate-paired reads generated by Illumina sequencing of total genomic DNA. The goosegrass plastome is a circular molecule of 135,151bp in length, consisting of two single-copy regions separated by a pair of inverted repeats (IRs) of 20,919 bases. The large (LSC) and the small (SSC) single-copy regions span 80,667 bases and 12,646 bases, respectively...
November 26, 2016: Gene
https://www.readbyqxmd.com/read/27898765/transcriptome-assembly-and-comparison-of-an-allotetraploid-weed-species-annual-bluegrass-with-its-two-diploid-progenitor-species-schrad-and-kunth
#3
Shu Chen, J Scott McElroy, Fenny Dane, Leslie R Goertzen
Annual bluegrass ( L.) is one of the most widespread weed species in this world. As a young allotetraploid, has occupied diverse environments from Antarctic area to subtropical regions. To unveil the evolutionary mystery behind 's wide distribution, extensive adaptability and phenotypic plasticity needs collaboration from multiple research scopes from ecology and plant physiology to population genetics and molecular biology. However, the lack of omic data and reference has greatly hampered the study. This is the first comprehensive transcriptome study on species...
March 2016: Plant Genome
https://www.readbyqxmd.com/read/27886567/evaluation-of-8-hydroxy-2-deoxyguanosine-and-nfkb-activation-oxidative-stress-response-acetylcholinesterase-activity-and-histopathological-changes-in-rainbow-trout-brain-exposed-to-linuron
#4
Ahmet Topal, Gonca Alak, Serdar Altun, Hüseyin Serkan Erol, Muhammed Atamanalp
Linuron is a widely used herbicide to control grasses and annual broad leaf weeds. It is known that linuron has toxic effects on different organisms. However, the toxic effects of linuron on aquatic organisms, especially fish, is completely unknown. Thus, we aimed to investigate changes in 8-hydroxy-2-deoxyguanosine (8-OHdG) and nuclear factor kappa B (NFkB) activity, histopathological changes, antioxidant responses and acetylcholinesterase (AChE) activity in rainbow trout brain after exposure to linuron. Fish were exposed to 30μg/L, 120μg/L and 240μg/L concentrations of linuron for twenty-one days...
November 13, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/27886229/expanding-and-exploring-the-diversity-of-phytoplasmas-from-lucerne-medicago-sativa
#5
David Gopurenko, Murray J Fletcher, Jian Liu, Geoff M Gurr
Phytoplasmas are a group of insect-vectored bacteria responsible for disease in many plant species worldwide. Among the crop species affected is the economically valuable forage species lucerne. Here we provide comprehensive molecular evidence for infection in multiple lucerne plants by a phytoplasma not previously known from this plant species. This phytoplasma had a >99% genetic similarity to an unclassified 16S rRNA subgroup previously reported as Stylosanthes little leaf from Stylosanthes spp. and was genetically and symptomatically distinct from a co-occurring but less common 16SrIIA group phytoplasma...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27872571/weed-species-composition-and-distribution-pattern-in-the-maize-crop-under-the-influence-of-edaphic-factors-and-farming-practices-a-case-study-from-mardan-pakistan
#6
Zeeshan Ahmad, Shujaul Mulk Khan, Elsayed Fathi Abd Allah, Abdulaziz Abdullah Alqarawi, Abeer Hashem
Weeds are unwanted plant species growing in ordinary environment. In nature there are a total of 8000 weed species out of which 250 are important for agriculture world. The present study was carried out on weed species composition and distribution pattern with special reference to edaphic factor and farming practices in maize crop of District Mardan during the months of August and September, 2014. Quadrates methods were used to assess weed species distribution in relation to edaphic factor and farming practices...
November 2016: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/27872557/checklist-for-the-crop-weeds-of-paraguay
#7
Juana De Egea, Fátima Mereles, María Del Carmen Peña-Chocarro, Gloria Céspedes
Paraguay, a country whose economy is based mainly on agriculture and livestock for export, has experienced a major expansion in mechanized crops during the last few decades. Despite being heavily dependent on agriculture, Paraguay has very limited research on crop weeds, in spite of these having a high economic impact on production. This work aims to update and enhance the knowledgebase on the most common weeds affecting productive fields throughout the different ecoregions of Paraguay. We present here the first checklist of crop weeds for the country, which includes a total of 256 taxa (189 species, 10 subspecies, 54 varieties and 3 forms), with the most species-rich families being Poaceae and Asteraceae followed by Malvaceae, Amaranthaceae, Fabaceae and Solanaceae...
2016: PhytoKeys
https://www.readbyqxmd.com/read/27871147/shared-and-host-specific-microbiome-diversity-and-functioning-of-grapevine-and-accompanying-weed-plants
#8
Abdul Samad, Friederike Trognitz, Stéphane Compant, Livio Antonielli, Angela Sessitsch
Weeds and crop plants select their microbiota from the same pool of soil microorganisms, however, the ecology of weed microbiomes is poorly understood. We analyzed the microbiomes associated with roots and rhizospheres of grapevine and four weed species (Lamium amplexicaule L., Veronica arvensis L., Lepidium draba L. and Stellaria media L.) growing in proximity in the same vineyard using 16S rRNA gene sequencing. We also isolated and characterized 500 rhizobacteria and root endophytes from L. draba and grapevine...
November 21, 2016: Environmental Microbiology
https://www.readbyqxmd.com/read/27867503/the-croprotect-project-and-wider-opportunities-to-improve-farm-productivity-through-web-based-knowledge-exchange
#9
REVIEW
Toby J A Bruce
A key global 21st century challenge is to maximize agricultural production while minimizing use of resources such as land, water, and energy to meet rising demand for produce. To meet this challenge, while also adapting to climate change, agriculture will have to become more knowledge intensive and deploy smarter farming techniques. The intention of this study was to: (1) Highlight the opportunity for web-based knowledge exchange to increase farm productivity and thus contribute to achieving food and energy security, (2) Give some examples of online farming information services such as the "CROPROTECT" tool I am developing in the UK, the CABI "Plantwise" Knowledge Bank and the IRRI "Rice Doctor," and (3) Consider lessons learnt so far...
May 2016: Food and energy security
https://www.readbyqxmd.com/read/27867421/dedicated-biomass-crops-can-enhance-biodiversity-in-the-arable-landscape
#10
Alison J Haughton, David A Bohan, Suzanne J Clark, Mark D Mallott, Victoria Mallott, Rufus Sage, Angela Karp
Suggestions that novel, non-food, dedicated biomass crops used to produce bioenergy may provide opportunities to diversify and reinstate biodiversity in intensively managed farmland have not yet been fully tested at the landscape scale. Using two of the largest, currently available landscape-scale biodiversity data sets from arable and biomass bioenergy crops, we take a taxonomic and functional trait approach to quantify and contrast the consequences for biodiversity indicators of adopting dedicated biomass crops on land previously cultivated under annual, rotational arable cropping...
November 2016: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/27862949/a-weight-of-evidence-approach-for-deriving-a-level-of-concern-for-atrazine-that-is-protective-of-aquatic-plant-communities
#11
Dwayne Rj Moore, Colleen D Greer, Gillian Manning, Katie Wooding, Kerrie J Beckett, Richard A Brain, Gary Marshall
Atrazine is a selective triazine herbicide widely used in the United States primarily for control of broadleaf weeds in corn and sorghum. In 2003, the U.S. Environmental Protection Agency (USEPA) concluded that atrazine poses potential risks to sensitive aquatic species. Consequently, a surface water monitoring program was developed to assess whether measured levels of atrazine could impact aquatic plants in vulnerable watersheds. To facilitate evaluation of the monitoring data, the Agency needed to determine a level of concern (LOC) below which atrazine would not cause unacceptable adverse effects to aquatic plant communities...
November 11, 2016: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/27853605/closing-oil-palm-yield-gaps-among-indonesian-smallholders-through-industry-schemes-pruning-weeding-and-improved-seeds
#12
T Soliman, F K S Lim, J S H Lee, L R Carrasco
Oil palm production has led to large losses of valuable habitats for tropical biodiversity. Sparing of land for nature could in theory be attained if oil palm yields increased. The efficiency of oil palm smallholders is below its potential capacity, but the factors determining efficiency are poorly understood. We employed a two-stage data envelopment analysis approach to assess the influence of agronomic, supply chain and management factors on oil palm production efficiency in 190 smallholders in six villages in Indonesia...
August 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27848110/changing-agricultural-practices-potential-consequences-to-aquatic-organisms
#13
Peter J Lasier, Matthew L Urich, Sayed M Hassan, Whitney N Jacobs, Robert B Bringolf, Kathleen M Owens
Agricultural practices pose threats to biotic diversity in freshwater systems with increasing use of glyphosate-based herbicides for weed control and animal waste for soil amendment becoming common in many regions. Over the past two decades, these particular agricultural trends have corresponded with marked declines in populations of fish and mussel species in the Upper Conasauga River watershed in Georgia/Tennessee, USA. To investigate the potential role of agriculture in the population declines, surface waters and sediments throughout the basin were tested for toxicity and analyzed for glyphosate, metals, nutrients, and steroid hormones...
December 0: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27846312/phenological-variation-in-ambrosia-artemisiifolia-l-facilitates-near-future-establishment-at-northern-latitudes
#14
Romain Scalone, Andreas Lemke, Edita Štefanić, Anna-Karin Kolseth, Sanda Rašić, Lars Andersson
The invasive weed Ambrosia artemisiifolia (common ragweed) constitutes a great threat to public health and agriculture in large areas of the globe. Climate change, characterized by higher temperatures and prolonged vegetation periods, could increase the risk of establishment in northern Europe in the future. However, as the species is a short-day plant that requires long nights to induce bloom formation, it might still fail to produce mature seeds before the onset of winter in areas at northern latitudes characterized by short summer nights...
2016: PloS One
https://www.readbyqxmd.com/read/27846273/risk-factors-for-bunyavirus-associated-severe-fever-with-thrombocytopenia-syndrome-a-community-based-case-control-study
#15
Jian-Li Hu, Zhi-Feng Li, Xiao-Chen Wang, Lei Hong, Hao He, Wei-Guo Chen, Lu-Xun Li, Ai-Hua Shen, Xue-Jian Liu, Shou-Guo Yuan, Jian-Gang Zhou, Wen-Wen Tan, Wei-Zhong Zhou, Fen-Yang Tang, Feng-Cai Zhu, Chang-Jun Bao
BACKGROUND: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by a novel bunyavirus. Previous studies about risk factors for SFTSV infection have yielded inconsistent results, and behavior factors have not been fully clarified. METHODS: A community-based, 1:4 matched case-control study was carried out to investigate the risk factors for SFTS in China. Cases of SFTS were defined as laboratory-confirmed cases that tested positive for real-time PCR (RT-PCR) for severe fever with thrombocytopenia syndrome bunyavirus (SFTSV) or positive for IgM antibodies against SFTSV...
2016: PloS One
https://www.readbyqxmd.com/read/27836797/fish-panel-for-leukemic-ctcl
#16
Jason Weed, Juliet Gibson, Julia Lewis, Kacie Carlson, Francine Foss, Jaehyuk Choi, Peining Li, Michael Girardi
No abstract text is available yet for this article.
November 8, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27830991/critical-assessment-of-pendimethalin-in-terms-of-persistence-bioaccumulation-toxicity-and-potential-for-long-range-transport
#17
Marco Vighi, Michael Matthies, Keith R Solomon
Pendimethalin (PND, CAS registry number 40487-42-1) is a dinitroaniline herbicide that selectively controls broad-leaf and grassy weeds in a variety of crops and in noncrop areas. It has been on the market for about 30 yr and is currently under review for properties related to persistence (P), bioaccumulation (B), and toxicity (T) in the European Union (EU). A critical review of these properties as well as potential for long-range transport (LRT) was conducted. Pendimethalin has a geometric mean (GM) half-life of 76-98 d in agriculturally relevant soils under aerobic conditions in the lab...
November 10, 2016: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/27830171/data-for-itraq-based-quantitative-proteomics-analysis-of-different-biotypes-in-echinochloa-crus-galli-with-multi-herbicide-treatment
#18
Xia Yang, Zichang Zhang, Tao Gu, Mingchao Dong, Qiong Peng, Lianyang Bai, Yongfeng Li
Barnyardgrass (Echinochloa crus-galli) is one of the most troublesome herbicide-resistant weeds worldwide that interferes with rice growth and rice yield. Here we provide the data from a comparative proteomic analysis of leaves in resistant (R) and susceptible (S) biotypes of Echinochloa crus-galli both with and without multi-herbicide treatment in two independent biological experiments using iTRAQ. The distribution of length and number of peptides, mass and sequence coverage of proteins were presented, and the repeatability of the replicates was analyzed...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27828113/new-procedure-to-design-low-radar-cross-section-near-perfect-isotropic-and-homogeneous-triangular-carpet-cloaks
#19
Zohreh Sharifi, Zahra Atlasbaf
A new design procedure for near perfect triangular carpet cloaks, fabricated based on only isotropic homogeneous materials, is proposed. This procedure enables us to fabricate a cloak with simple metamaterials or even without employing metamaterials. The proposed procedure together with an invasive weed optimization algorithm is used to design carpet cloaks based on quasi-isotropic metamaterial structures, Teflon and AN-73. According to the simulation results, the proposed cloaks have good invisibility properties against radar, especially monostatic radar...
October 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27827908/dicotyledon-weed-quantification-algorithm-for-selective-herbicide-application-in-maize-crops
#20
Morten Stigaard Laursen, Rasmus Nyholm Jørgensen, Henrik Skov Midtiby, Kjeld Jensen, Martin Peter Christiansen, Thomas Mosgaard Giselsson, Anders Krogh Mortensen, Peter Kryger Jensen
The stricter legislation within the European Union for the regulation of herbicides that are prone to leaching causes a greater economic burden on the agricultural industry through taxation. Owing to the increased economic burden, research in reducing herbicide usage has been prompted. High-resolution images from digital cameras support the studying of plant characteristics. These images can also be utilized to analyze shape and texture characteristics for weed identification. Instead of detecting weed patches, weed density can be estimated at a sub-patch level, through which even the identification of a single plant is possible...
November 4, 2016: Sensors
keyword
keyword
34171
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"