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https://www.readbyqxmd.com/read/28635587/ictv-virus-taxonomy-profile-ophioviridae
#1
María Laura García, Elena Dal Bó, John V da Graça, Selma Gago-Zachert, John Hammond, Pedro Moreno, Tomohide Natsuaki, Vicente Pallás, Jose A Navarro, Carina A Reyes, Gabriel Robles Luna, Takahide Sasaya, Ioannis E Tzanetakis, Anna María Vaira, Martin Verbeek, Ictv Report Consortium
The Ophioviridae is a family of filamentous plant viruses, with single-stranded negative, and possibly ambisense, RNA genomes of 11.3-12.5 kb divided into 3-4 segments, each encapsidated separately. Virions are naked filamentous nucleocapsids, forming kinked circles of at least two different contour lengths. The sole genus, Ophiovirus, includes seven species. Four ophioviruses are soil-transmitted and their natural hosts include trees, shrubs, vegetables and bulbous or corm-forming ornamentals, both monocots and dicots...
June 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28611840/deep-learning-for-plant-identification-in-natural-environment
#2
Yu Sun, Yuan Liu, Guan Wang, Haiyan Zhang
Plant image identification has become an interdisciplinary focus in both botanical taxonomy and computer vision. The first plant image dataset collected by mobile phone in natural scene is presented, which contains 10,000 images of 100 ornamental plant species in Beijing Forestry University campus. A 26-layer deep learning model consisting of 8 residual building blocks is designed for large-scale plant classification in natural environment. The proposed model achieves a recognition rate of 91.78% on the BJFU100 dataset, demonstrating that deep learning is a promising technology for smart forestry...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28611818/long-term-effects-of-red-and-blue-light-emitting-diodes-on-leaf-anatomy-and-photosynthetic-efficiency-of-three-ornamental-pot-plants
#3
Liang Zheng, Marie-Christine Van Labeke
Light quality critically affects plant development and growth. Development of light-emitting diodes (LEDs) enables the use of narrow band red and/or blue wavelengths as supplementary lighting in ornamental production. Yet, long periods under these wavelengths will affect leaf morphology and physiology. Leaf anatomy, stomatal traits, and stomatal conductance, leaf hydraulic conductance (Kleaf), and photosynthetic efficiency were investigated in three ornamental pot plants, namely Cordyline australis (monocot), Ficus benjamina (dicot, evergreen leaves), and Sinningia speciosa (dicot, deciduous leaves) after 8 weeks under LED light...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28610286/a-survey-for-potential-biological-control-agents-of-i-pereskia-i-i-aculeata-i-miller-cactaceae-in-brazil-reveals-two-new-species-of-i-horismenus-i-walker-hymenoptera-eulophidae
#4
Tiago G Pikart, Valmir A Costa, Christer Hansson, Sandra C DE Cristo, Marcelo D Vitorino
This paper deals with the description of two new species of Horismenus Walker (Hymenoptera: Eulophidae) from Brazil, parasitoids of larvae of Adetus analis (Haldeman) (Coleoptera: Cerambycidae). Both species are similar to Horismenus steirastomae (Girault), a species that also parasitizes cerambycids. Adetus analis is a pest of Sechium edule (Jacq.) Swartz (Cucurbitaceae), a minor crop in Brazil, Argentina and U.S.A., but also feeds in stems of Pereskia aculeata Miller (Cactaceae), an ornamental plant that has become a problematic weed species in Africa, where it was introduced...
May 30, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609911/phytoseiid-mites-acari-phytoseiidae-associated-with-tropical-ornamental-plants-with-a-checklist-and-a-key-to-the-species-of-bahia-brazil
#5
Poliane Sá Argolo, Renata M Vital Santos, Maria A Leão Bittencourt, Aloyséia C DA Silva Noronha, Gilberto J DE Moraes, Anibal Ramadan Oliveira
Twenty-four papers refer to phytoseiid mites from different plant species in the state of Bahia, northeastern Brazil, but none of those refer to taxonomic surveys on ornamental plants. The aim of this study was to determine phytoseiids from tropical ornamentals in the southern coastal region of Bahia state, as well as to present a checklist and an identification key to the species recorded in that state. Samples were collected at eight localities of five municipalities. A total of seventeen species in nine genera was found on fifteen plant species of the families Costaceae, Heliconiaceae, Musaceae and Zingiberaceae...
May 1, 2017: Zootaxa
https://www.readbyqxmd.com/read/28607837/eocene-loranthaceae-pollen-pushes-back-divergence-ages-for-major-splits-in-the-family
#6
Friðgeir Grímsson, Paschalia Kapli, Christa-Charlotte Hofmann, Reinhard Zetter, Guido W Grimm
BACKGROUND: We revisit the palaeopalynological record of Loranthaceae, using pollen ornamentation to discriminate lineages and to test molecular dating estimates for the diversification of major lineages. METHODS: Fossil Loranthaceae pollen from the Eocene and Oligocene are analysed and documented using scanning-electron microscopy. These fossils were associated with molecular-defined clades and used as minimum age constraints for Bayesian node dating using different topological scenarios...
2017: PeerJ
https://www.readbyqxmd.com/read/28606427/illumina-based-analysis-of-endophytic-bacterial-diversity-of-tree-peony-paeonia-sect-moutan-roots-and-leaves
#7
Ruixian Yang, Ping Liu, Wenyu Ye
Diverse communities of bacteria inhabit plant tissues and those bacteria play a crucial role for plant health and growth. Tree peony (Paeonia Sect. Moutan) is known for its excellent ornamental and medicinal values as Chinese traditional plant, but little is known about its associated bacterial community under natural conditions. To examine how endophytic bacteria in tree peony vary across tissues and cultivars, PCR-based Illumina was applied to reveal the diversity of endophytic bacteria in tree peony. A total of 149,842 sequences and 21,463 operational taxonomic units (OTUs) were obtained...
June 2, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28605982/chemical-composition-and-antifungal-activity-of-hedera-helix-leaf-ethanolic-extract
#8
Oana Roşca-Casian, Cristina Mircea, Laurian Vlase, Ana-Maria Gheldiu, Delia Tania Teuca, Marcel Pârvu
The 50% ethanol extract obtained from Hedera helix leaves was investigated regarding the presence and quantity of polyphenols, sterols and in vitro antifungal activity against phytopathogenic fungi. The chemical analysis revealed the presence of rutin, quercetin and kaempferol in the non-hydrolysed sample and quercetin and kaempferol in the hydrolysed sample and stigmasterol in the ivy leaf extract (nonhydrolysed sample). The antifungal activity against phytopathogenic fungi (Aspergillus niger, Botrytis cinerea, B...
June 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28602011/differences-in-the-fruit-structure-and-the-location-and-content-of-bioactive-substances-in-viburnum-opulus-and-viburnum-lantana-fruits
#9
Agata Konarska, Marcin Domaciuk
Many Viburnum species are popular ornamental shrubs and, simultaneously, highly valued medicinal plants as a source of many bioactive compounds, including antioxidants. Viburnum bark, flowers, and fruits are widely used in traditional and folk medicine, and the fruits of some species are used as cooking ingredients. The knowledge of the microstructure of Viburnum fruits and the accumulation sites of bioactive substances in these organs is rather poor. Comparative analyses of the microstructure of ripe Viburnum opulus and Viburnum lantana drupes were carried out using light, scanning, and transmission electron microscopes...
June 10, 2017: Protoplasma
https://www.readbyqxmd.com/read/28597435/micro-morphological-study-of-evolvulus-spp-convolvulaceae-the-old-world-medicinal-plants
#10
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
#11
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/28597370/micropropagation-of-ajuga-species-a-mini-review
#12
REVIEW
Han Yong Park, Doo Hwan Kim, Iyyakkannu Sivanesan
The genus Ajuga L., belonging to Lamiaceae family, is widespread. The demand for Ajuga species has risen sharply because of their medicinal, ornamental, and pharmacological properties. These wide-ranging plants are being rapidly depleted due to over-collection for ornamental and medicinal purposes, as well as by habitat destruction and deforestation. Ajuga boninsimae, A. bracteosa, A. ciliate, A. genevensis, A. incisa, A. makinoi, A. multiflora, A. pyramidalis, A. shikotanensis, A. reptans, and A. vestita are categorized and protected as endangered plants...
June 8, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28587201/laurus-nobilis-composition-of-essential-oil-and-its-biological-activities
#13
Lucia Caputo, Filomena Nazzaro, Lucéia Fatima Souza, Luigi Aliberti, Laura De Martino, Florinda Fratianni, Raffaele Coppola, Vincenzo De Feo
Laurus nobilis is native to the southern Mediterranean region and cultivated mainly in Europe and the USA as an ornamental and medicinal plant. The chemical composition of the essential oil (EO) from leaves of L. nobilis, collected in Southern Italy, was studied by GC and GC-MS. In all, 55 compounds were identified, accounting for 91.6% of the total oil. 1,8-Cineole (31.9%), sabinene (12.2%), and linalool (10.2%) were the main components. Antimicrobial and antifungal activities of EO and 1,8-cineole were determined in vitro...
June 3, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28587077/floral-scent-chemistry-of-luculia-yunnanensis-rubiaceae-a-species-endemic-to-china-with-sweetly-fragrant-flowers
#14
Yuying Li, Youming Wan, Zhenghai Sun, Taiqiang Li, Xiongfang Liu, Hong Ma, Xiuxian Liu, Rui He, Yan Ma, Zhenghong Li
Luculia plants are famed ornamentals with sweetly fragrant flowers. Luculia yunnanensis Hu is an endemic plant from Yunnan Province, China. Headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was used to identify the volatile organic compounds (VOCs) of the different flower development stages of L. yunnanensis for the evaluation of floral volatile polymorphism. The results showed that a total of 40 compounds were identified at four different stages. The main aroma-active compounds were 3-carene, α-cubebene, α-copaene, δ-cadinene, and isoledene...
May 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28580799/flavonoids-of-alcea-rosea-l-and-their-immune-stimulant-antioxidant-and-cytotoxic-activities-on-hepatocellular-carcinoma-hepg-2-cell-line
#15
Nabil A Abdel-Salam, Nabila M Ghazy, Shaimaa M Sallam, Mohamed M Radwan, Amira S Wanas, Mahmoud A ElSohly, Maha A El-Demellawy, Nevin M Abdel-Rahman, Sonia Piacente, Mary L Shenouda
Alcea rosea L. is widely cultivated in gardens of Egypt as an ornamental plant and it has a great history of folkloric medicinal uses. In the present work, phytochemical investigation of the alcoholic extract of the flowers of A. rosea L. led to the isolation of six flavonoids (1-6). Dihydrokaempferol-4'-O-β-d-glucopyranoside (1), dihydrokaempferol (2), kaempferol-3-O-[6″-(E-coumaroyl)]-β-d-glucopyranoside (3), kaempferol-3-O-β-d-glucopyranoside (4), Apigenin (5) and kaempferol-3-O-α-l-rhamnopyranosyl-(1'″→6″)-β-d-glucopyranoside (6)...
June 5, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28576697/sequencing-viral-sirnas-to-identify-previously-undescribed-viruses-and-viroids-in-a-panel-of-ornamental-plant-samples-structured-as-a-matrix-of-pools
#16
REVIEW
Eric Verdin, Catherine Wipf-Scheibel, Patrick Gognalons, François Aller, Mireille Jacquemond, Mark Tepfer
Ornamental plants constitute a largely unknown and potentially important source of pathogens affecting not only ornamental plants, but also major crop species. We have carried out studies using high-throughput sequencing of 21-24 nt RNAs from potentially virus-infected ornamental plants, followed by assembly of sequence scaffolds, to identify the virus and viroid genomes present in a panel of 67 plant samples representing 46 species belonging to the main sectors of the ornamental plant industry (cut flowers, pot plants, bulbs)...
May 30, 2017: Virus Research
https://www.readbyqxmd.com/read/28573238/kirkia-acuminata-oliv-a-review-of-its-ethnobotany-and-pharmacology
#17
Alfred Maroyi
BACKGROUND: Local communities in sub-Saharan Africa have a long history of medicinal plant usage. Like in other parts of the developing world, rural and urban communities are still dependent on herbal medicines for primary health care, and the use of herbal medicines is still an integral part of their daily life and socio-cultural life style. The objective of this paper is to summarise information on the ethnobotany and pharmacology of Kirkia acuminata Oliv. throughout its distributional range...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28551560/ornamental-plants-on-sale-to-the-public-are-a-significant-source-of-pesticide-residues-with-implications-for-the-health-of-pollinating-insects
#18
A Lentola, A David, A Abdul-Sada, A Tapparo, D Goulson, E M Hill
Garden centres frequently market nectar- and pollen-rich ornamental plants as "pollinator-friendly", however these plants are often treated with pesticides during their production. There is little information on the nature of pesticide residues present at the point of purchase and whether these plants may actually pose a threat to, rather than benefit, the health of pollinating insects. Using mass spectrometry analyses, this study screened leaves from 29 different 'bee-friendly' plants for 8 insecticides and 16 fungicides commonly used in ornamental production...
May 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28546825/efficient-isolation-of-magnolia-protoplasts-and-the-application-to-subcellular-localization-of-mdehsf1
#19
Yamei Shen, Dong Meng, Kim McGrouther, Junhong Zhang, Lailiang Cheng
BACKGROUND: Magnolia is a woody ornamental plant, which is widely used in urban landscaping. However, its lengthy juvenile period and recalcitrance to regeneration impedes functional characterization of its genes. RESULTS: We developed an efficient protoplast isolation and transient expression system for Magnolia denudata × Magnolia acuminata 'Yellow River'. The highest yield of protoplasts was obtained from young leaves digested in 3% Cellulase R10, 0.8% Macerozyme R10, 0...
2017: Plant Methods
https://www.readbyqxmd.com/read/28539719/ultrasound-assisted-extraction-of-ursolic-acid-from-the-flowers-of-ixora-coccinia-linn-rubiaceae-and-antiproliferative-activity-of-ursolic-acid-and-synthesized-derivatives
#20
Silvana Amadeu Ferreira Alves Monteath, Maria Aparecida M Maciel, Raquel Garcia Vega, Heloisa de Mello, Carollina de Araújo Martins, Andressa Esteves-Souza, Cerli Rocha Gattass, Aurea Echevarria
BACKGROUND: Ixora coccinea Linn (Rubiaceae) is an evergreen shrub with bright scarlet colored flowers found in several tropical and subtropical countries. It is used as an ornamental and medicinal plant. Phytochemical studies revealed that its major special metabolites are triterpene acids, such as ursolic and oleanolic acid. OBJECTIVE: To evaluate the isolation of ursolic acid (UA) (1) from methanol extracts of I. coccinea flowers through two methodologies, to prepare four derivatives, and to evaluate the cytotoxic effect against six cancer cell lines...
April 2017: Pharmacognosy Magazine
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