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https://www.readbyqxmd.com/read/28641228/relationships-between-past-and-present-pesticide-applications-and-pollution-at-a-watershed-outlet-the-case-of-a-horticultural-catchment-in-martinique-french-west-indies
#1
Charles Mottes, Magalie Lesueur Jannoyer, Marianne Le Bail, Mathilde Guéné, Céline Carles, Eric Malézieux
The understanding of factors affecting pesticide transfers to catchment outlet is still at a very early stage in tropical context, and especially on tropical volcanic context. We performed on-farm pesticide use surveys during 87 weeks and monitored pesticides in water weekly during 67 weeks at the outlet of a small catchment in Martinique. We identified three types of pollution. First, we showed long-term chronic pollution by chlordecone, diuron and metolachlor resulting from horticultural practices applied 5-20 years ago (quantification frequency higher than 80%)...
June 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28637269/announcing-the-genome-atlas-of-bamboo-and-rattan-gabr-project-promoting-research-in-evolution-and-in-economically-and-ecologically-beneficial-plants
#2
Hansheng Zhao, Shancen Zhao, Benhua Fei, Huan Liu, Huanming Yang, Honghai Dai, Dan Wang, Wei Jin, Feng Tang, Qiang Gao, Hang Xun, Yuwei Wang, Lianghua Qi, Xianghua Yue, Shuyan Lin, Lianfeng Gu, Lubin Li, Tiansheng Zhu, Qiang Wei, Zhen Su, Tarmeze Bin Wan Ariffin Wan, Daniel A Ofori, George Mbeva Muthike, Yigardu Mulatu Mengesha, Roberto Magno de Castro E Silva, Antonio Ludovico Beraldo, Zhimin Gao, Xin Liu, Zehui Jiang
Bamboo and rattan are widely grown for manufacturing, horticulture, and agroforestry. Bamboo and rattan production might help reduce poverty, boost economic growth, mitigate climate change, and protect the natural environment. Despite progress in research, sufficient molecular and genomic resources to study these species are lacking. We launched the Genome Atlas of Bamboo and Rattan (GABR) project, a comprehensive, coordinated international effort to accelerate understanding of BR genetics through genome analysis...
June 16, 2017: GigaScience
https://www.readbyqxmd.com/read/28630625/quantification-of-antioxidant-phenolic-compounds-in-a-new-chrysanthemum-cultivar-by-high-performance-liquid-chromatography-with-diode-array-detection-and-electrospray-ionization-mass-spectrometry
#3
Ah-Reum Han, Hyo Young Kim, Yangkang So, Bomi Nam, Ik-Soo Lee, Joo-Won Nam, Yeong Deuk Jo, Sang Hoon Kim, Jin-Baek Kim, Si-Yong Kang, Chang Hyun Jin
The flowers of Chrysanthemum morifolium Ramat. have been used as an herbal tea and in traditional medicine, and the plant has been developed to produce horticultural cultivars of various colors and shapes. In this study, a new chrysanthemum cultivar with dark purple petals (C. morifolium cv. ARTI-Dark Chocolate; ADC) was developed by radiation-induced mutation breeding of its original cultivar with purple striped white petals (C. morifolium cv. Noble Wine, NW). The phenolic profile and antioxidant property of ADC were investigated and compared with NW and the commercially available medicinal herb, C...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28629176/fortifying-horticultural-crops-with-essential-amino-acids-a-review
#4
REVIEW
Guoping Wang, Mengyun Xu, Wenyi Wang, Gad Galili
To feed the world's growing population, increasing the yield of crops is not the only important factor, improving crop quality is also important, and it presents a significant challenge. Among the important crops, horticultural crops (particularly fruits and vegetables) provide numerous health compounds, such as vitamins, antioxidants, and amino acids. Essential amino acids are those that cannot be produced by the organism and, therefore, must be obtained from diet, particularly from meat, eggs, and milk, as well as a variety of plants...
June 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28622652/deterioration-pattern-of-six-biodegradable-potentially-low-environmental-impact-mulches-in-field-conditions
#5
Marta M Moreno, Sara González-Mora, Jaime Villena, Juan A Campos, Carmen Moreno
Polyethylene plastic mulches are widely used in agriculture due to the countless advantages they have. However, the environmental problems associated with their use have led us to look for alternative mulch materials which degrade naturally and quickly, impact the environment less and function satisfactorily. To this end, biodegradable plastics and paper mulches are being used, but aspects related to their degradation should be studied more in-depth. This work provides the deterioration pattern of six biodegradable mulch materials (i...
June 13, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28620457/early-fruiting-in-synsepalum-dulcificum-schumach-thonn-daniell-juveniles-induced-by-water-and-inorganic-nutrient-management
#6
Dèdéou Apocalypse Tchokponhoué, Sognigbé N'Danikou, Iago Hale, Allen Van Deynze, Enoch Gbènato Achigan-Dako
Background. The miracle plant, Synsepalum dulcificum (Schumach. & Thonn.) Daniell is a native African orphan crop species that has recently received increased attention due to its promise as a sweetener and source of antioxidants in both the food and pharmaceutical industries. However, a major obstacle to the species' widespread utilization is its relatively slow growth rate and prolonged juvenile period. Method. In this study, we tested twelve treatments made up of various watering regimes and exogenous nutrient application (nitrogen, phosphorus and potassium, at varying dosages) on the relative survival, growth, and reproductive development of 15-months-old S...
2017: F1000Research
https://www.readbyqxmd.com/read/28612342/effect-of-glycine-nitrogen-on-lettuce-growth-under-soilless-culture-a-metabolomics-approach-to-identify-the-main-changes-occurred-in-plant-primary-and-secondary-metabolism
#7
Xiao Yang, Lei Feng, Li Zhao, Xiaosong Liu, Danial Hassani, Danfeng Huang
BACKGROUND: Lettuce is a significant source of antioxidants and bioactive compounds. Nitrate is a cardinal fertilizer in horticulture and influences vegetable yield and quality; however, the negative effects of nitrate on the biosynthesis of flavonoids require further study. It is expected that using fertilizers containing organic N could promote the synthesis of health-promoting compounds. RESULTS: Lettuces were hydroponically cultured in media containing 9 mM nitrate or 9 mM glycine for 4 weeks...
June 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28609989/freshwater-fishes-of-northern-australia
#8
Bradley J Pusey, Damien W Burrows, Mark J Kennard, Colton N Perna, Peter J Unmack, Quentin Allsop, Michael P Hammer
Northern Australia is biologically diverse and of national and global conservation signicance. Its ancient landscape contains the world's largest area of savannah ecosystem in good ecological condition and its rivers are largely free-flowing. Agriculture, previously confined largely to open range-land grazing, is set to expand in extent and to focus much more on irrigated cropping and horticulture. Demands on the water resources of the region are thus, inevitably increasing. Reliable information is required to guide and inform development and help plan for a sustainable future for the region which includes healthy rivers that contain diverse fish assemblages...
April 11, 2017: Zootaxa
https://www.readbyqxmd.com/read/28597435/micro-morphological-study-of-evolvulus-spp-convolvulaceae-the-old-world-medicinal-plants
#9
Kanapol Ketjarun, George W Staples, Sasivimon C Swangpol, Paweena Traiperm
BACKGROUND: Several medicinal properties have been reported for plants in the genus Evolvulus, such as a brain tonic and antifungal from Evolvulus alsinoides, and a sedative and an anthelmintic from Evolvulus nummularius. Therefore, the correct identification of the source plants is critically important. The aim of this research was to investigate the micromorphology of two Evolvulus taxa used for herbal medicines compared with one worldwide ornamental species by using peeling, paraffin embedding, acetolysis, and SEM methods in order to support species identification...
December 2016: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28597432/harpin-hpa1-promotes-flower-development-in-impatiens-and-parochetus-plants
#10
Yilan Dong, Ping Li, Chunling Zhang
BACKGROUND: The harpin protein Hpa1 has multiple beneficial effects in plants, promoting plant growth and development, increasing crop yield, and inducing plant resistance to pathogens and insect pests. In these effects, the 10-40 residue fragment (Hpa110-42) isolated from the Hpa1 sequence is 1.3 to 7.5-fold more effective than the full length. RESULTS: This study extends the beneficial effects of Hpa1 and Hpa110-42 to flower development in three species of the garden balsam Impatiens and the garden scoparius Parochetus communis plant...
December 2016: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28597414/effects-of-light-emitting-diode-supplementary-lighting-on-the-winter-growth-of-greenhouse-plants-in-the-yangtze-river-delta-of-china
#11
Xue Li, Wei Lu, Guyue Hu, Xiao Chan Wang, Yu Zhang, Guo Xiang Sun, Zhichao Fang
BACKGROUND: The winter in the Yangtze River Delta area of China involves more than 1 month of continuous low temperature and poor light (CLTL) weather conditions, which impacts horticultural production in an unheated greenhouse; however, few greenhouses in this area are currently equipped with a heating device. The low-cost and long-living light-emitting diode (LED) was used as an artificial light source to explore the effects of supplementary lighting during the dark period in CLTL winter on the vegetative characteristics, early yield, and physiology of flowering for pepper plants grown in a greenhouse without heating...
December 2016: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28587216/selenium-enrichment-of-horticultural-crops
#12
REVIEW
Martina Puccinelli, Fernando Malorgio, Beatrice Pezzarossa
The ability of some crops to accumulate selenium (Se) is crucial for human nutrition and health. Selenium has been identified as a cofactor of the enzyme glutathione peroxidase, which is a catalyzer in the reduction of peroxides that can damage cells and tissues, and can act as an antioxidant. Plants are the first link in the food chain, which ends with humans. Increasing the Se quantity in plant products, including leafy and fruity vegetables, and fruit crops, without exceeding the toxic threshold, is thus a good way to increase animal and human Se intake, with positive effects on long-term health...
June 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28575474/don-t-ignore-the-green-light-exploring-diverse-roles-in-plant-processes
#13
Hayley L Smith, Lorna McAusland, Erik H Murchie
The pleasant green appearance of plants, caused by their reflectance of wavelengths in the 500-600 nm range, might give the impression that green light is of minor importance in biology. This view persists to an extent. However, there is strong evidence that these wavelengths are not only absorbed but that they also drive and regulate physiological responses and anatomical traits in plants. This review details the existing evidence of essential roles for green wavelengths in plant biology. Absorption of green light is used to stimulate photosynthesis deep within the leaf and canopy profile, contributing to carbon gain and likely crop yield...
April 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28570688/genetic-diversity-and-accession-structure-in-european-cynara-cardunculus-collections
#14
Mario A Pagnotta, Juan A Fernández, Gabriella Sonnante, Catalina Egea-Gilabert
Understanding the distribution of genetic variations and accession structures is an important factor for managing genetic resources, but also for using proper germplasm in association map analyses and breeding programs. The globe artichoke is the fourth most important horticultural crop in Europe. Here, we report the results of a molecular analysis of a collection including globe artichoke and leafy cardoon germplasm present in the Italian, French and Spanish gene banks. The aims of this study were to: (i) assess the diversity present in European collections, (ii) determine the population structure, (iii) measure the genetic distance between accessions; (iv) cluster the accessions; (v) properly distinguish accessions present in the different national collections carrying the same name; and (vi) understand the diversity distribution in relation to the gene bank and the geographic origin of the germplasm...
2017: PloS One
https://www.readbyqxmd.com/read/28540710/genetic-diversity-analysis-of-medicinally-important-horticultural-crop-aegle-marmelos-by-issr-markers
#15
Farina Mujeeb, Preeti Bajpai, Neelam Pathak, Smita Rastogi Verma
Inter simple sequence repeat (ISSR) markers help in identifying and determining the extent of genetic diversity in cultivars. Here, we describe their application in determining the genetic diversity of bael (Aegle marmelos Corr.). Universal ISSR primers are selected and their marker characteristics such as polymorphism information content, effective multiplex ratio and marker index have been evaluated. ISSR-PCR is then performed using universal ISSR primers to generate polymorphic bands. This information is used to determine the degree of genetic similarity among the bael varieties/accessions by cluster analysis using unweighted pair-group method with arithmetic averages (UPGMA)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28519717/phytophthora-cinnamomi
#16
Adrienne R Hardham, Leila M Blackman
Phytophthora cinnamomi is one of the most devastating plant pathogens in the world. It infects close to 5,000 species of plants, including many of importance in agriculture, forestry and horticulture. Inadvertent introduction of P. cinnamomi into natural ecosystems, including a number of recognised Global Biodiversity Hotspots, has disastrous consequences for the environment and biodiversity of flora and fauna. The genus Phytophthora belongs to the Class Oomycetes, a group of fungus-like organisms that initiate plant disease through the production of motile zoospores...
May 18, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28518067/remote-sensing-evaluation-of-two-spotted-spider-mite-damage-on-greenhouse-cotton
#17
Daniel E Martin, Mohamed A Latheef
The objective of this study was to evaluate a ground-based multispectral optical sensor as a remote sensing tool to assess foliar damage caused by the two-spotted spider mite (TSSM), Tetranychus urticae Koch, on greenhouse grown cotton. TSSM is a polyphagous pest which occurs on a variety of field and horticultural crops. It often becomes an early season pest of cotton in damaging proportions as opposed to being a late season innocuous pest in the mid-southern United States. Evaluation of acaricides is important for maintaining the efficacy of and preventing resistance to the currently available arsenal of chemicals and newly developed control agents...
April 28, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28475682/susceptibility-of-australian-myzus-persicae-hemiptera-aphididae-to-three-recently-registered-insecticides-spirotetramat-cyantraniliprole-and-sulfoxaflor
#18
Siobhan C de Little, Paul A Umina
The green peach aphid, Myzus persicae (Sulzer), is a significant agricultural pest that has developed resistance to a large number of insecticides globally. Within Australia, resistance has previously been confirmed for multiple chemical groups, including pyrethroids, carbamates, organophosphates, and neonicotinoids. In this study, we use leaf-dip and topical bioassays to investigate susceptibility and potential cross-resistance of 12 field-collected populations of Australian M. persicae to three recently registered insecticides: sulfoxaflor, spirotetramat, and cyantraniliprole...
May 5, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28473834/biotechnological-advancements-for-improving-floral-attributes-in-ornamental-plants
#19
REVIEW
Ali Noman, Muhammad Aqeel, Jianming Deng, Noreen Khalid, Tayyaba Sanaullah, He Shuilin
Developing new ornamental cultivars with improved floral attributes is a major goal in floriculture. Biotechnological approach together with classical breeding methods has been used to modify floral color, appearance as well as for increasing disease resistance. Transgenic strategies possess immense potential to produce novel flower phenotypes that are not found in nature. Adoption of Genetic engineering has supported the idea of floral trait modification. Ornamental plant attributes like floral color, fragrance, disease resistance, and vase life can be improved by means of genetic manipulation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28472099/microbiomes-associated-with-infective-stages-of-root-knot-and-lesion-nematodes-in-soil
#20
Ahmed Elhady, Ariadna Giné, Olivera Topalovic, Samuel Jacquiod, Søren J Sørensen, Francisco Javier Sorribas, Holger Heuer
Endoparasitic root-knot (Meloidogyne spp.) and lesion (Pratylenchus spp.) nematodes cause considerable damage in agriculture. Before they invade roots to complete their life cycle, soil microbes can attach to their cuticle or surface coat and antagonize the nematode directly or by induction of host plant defenses. We investigated whether the nematode-associated microbiome in soil differs between infective stages of Meloidogyne incognita and Pratylenchus penetrans, and whether it is affected by variation in the composition of microbial communities among soils...
2017: PloS One
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