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https://www.readbyqxmd.com/read/29750071/recognition-of-the-genus-thaumatophyllum-schott-formerly-philodendron-subg-meconostigma-araceae-based-on-molecular-and-morphological-evidence
#1
Cassia Mônica Sakuragui, Luana Silva Braucks Calazans, Leticia Loss de Oliveira, Érica Barroso de Morais, Ana Maria Benko-Iseppon, Santelmo Vasconcelos, Carlos Eduardo Guerra Schrago, Simon Joseph Mayo
Philodendron subgenus Meconostigma has been a well-circumscribed group since 1829. Members of this group are easily distinguished by diagnostic morphological characters as well as by a distinct ecology and geographical distribution. Based on molecular, morphological and cytological evidence, we propose the recognition of P. subg. Meconostigma as a distinct genus, Thaumatophyllum Schott. We also present the necessary new combinations, an emended key and some nomenclatural and taxonomic corrections regarding 21 names of Thaumatophyllum ...
2018: PhytoKeys
https://www.readbyqxmd.com/read/29690177/a-new-species-of-stenomicra-coquillett-diptera-periscelididae-from-the-brazilian-amazon-and-its-life-history
#2
Eliane Solar Gomes, Rosaly Ale-Rocha, Ruth Leila Ferreira Keppler
A new species of Stenomicra is described for the Neotropical Region, from phytotelmata of Araceae at an urban forest fragment in the city of Manaus, state of Amazonas, Brazil. Morphological descriptions of the immatures and the adults (male and female) are provided, together with biological information on the life cycle of the species and its "host" plant.
April 12, 2018: Zootaxa
https://www.readbyqxmd.com/read/29689874/a-new-species-of-beebeomyia-curran-diptera-richardiidae-from-brazil-with-description-of-immature-stages-and-notes-on-their-association-with-taccarum-ulei-araceae
#3
Lisiane Dilli Wendt, Eduardo Gomes GonÇalves, Artur Campos dÁlia Maia
A new species of the genus Beebeomyia Curran found in the northern coastal region of the state of Pernambuco, northeastern Brazil is described and illustrated, including characteristics of the male and female terminalia, third instar larva and puparium. This new species is only the second record for the genus in Brazil and broadens its occurrence to the Atlantic Forest ecoregion. Beebeomyia taccarivora sp. nov. is straightforwardly distinguishable from all other known species of Beebeomyia for exhibiting an entirely yellowish orange thorax with a central brown-colored stripe on the scutum, and a brownish orange abdomen with a central brown stripe on tergites 1-4...
January 7, 2018: Zootaxa
https://www.readbyqxmd.com/read/29529038/the-complete-chloroplast-genome-sequence-of-epipremnum-aureum-and-its-comparative-analysis-among-eight-araceae-species
#4
Na Tian, Limin Han, Chen Chen, Zhezhi Wang
Epipremnum aureum is an important foliage plant in the Araceae family. In this study, we have sequenced the complete chloroplast genome of E. aureum by using Illumina Hiseq sequencing platforms. This genome is a double-stranded circular DNA sequence of 164,831 bp that contains 35.8% GC. The two inverted repeats (IRa and IRb; 26,606 bp) are spaced by a small single-copy region (22,868 bp) and a large single-copy region (88,751 bp). The chloroplast genome has 131 (113 unique) functional genes, including 86 (79 unique) protein-coding genes, 37 (30 unique) tRNA genes, and eight (four unique) rRNA genes...
2018: PloS One
https://www.readbyqxmd.com/read/29521251/suppression-of-the-viability-and-proliferation-of-hepg2-hepatocellular-carcinoma-cell-line-by-konjac-glucomannan
#5
Sakunie Sawai, Mas Sahidayana Mokhtar, Wan Kamarul Zaman Wan Safwani, Thamil Selvee Ramasamy
BACKGROUND: Konjac glucomannan (KGM) is a water-soluble dietary fibre extracted from Amorphophallus konjac K. Koch (Araceae). Konjac fibre has been clinically proven as an effective antioxidant agent in weight control but its traditionally known tumour suppression property remains to be explored. OBJECTIVE: The main objective of this study is to determine the potential anti-proliferative effect of KGM on cancer and normal human liver cell lines, HepG2 and WRL68, respectively...
March 7, 2018: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29316090/diversity-of-pollination-ecology-in-the-schismatoglottis-calyptrata-complex-clade-araceae
#6
Y C Hoe, M Gibernau, S Y Wong
Field studies integrating pollination investigations with an assessment of floral scent composition and thermogenesis in tropical aroids are rather few. Thus, this study aimed to investigate the pollination biology of nine species belonging to Schismatoglottis Calyptrata Complex Clade. The flowering mechanism, visiting insect activities, reproductive system, thermogenesis and floral scent composition were examined. Anthesis for all species started at dawn and lasted 25-29 h. Colocasiomyia (Diptera, Drosophilidae) are considered the main pollinators for all the investigated species...
May 2018: Plant Biology
https://www.readbyqxmd.com/read/29144427/the-chloroplast-genome-of-symplocarpus-renifolius-a-comparison-of-chloroplast-genome-structure-in-araceae
#7
Kyoung Su Choi, Kyu Tae Park, SeonJoo Park
Symplocarpus renifolius is a member of Araceae family that is extraordinarily diverse in appearance. Previous studies on chloroplast genomes in Araceae were focused on duckweeds (Lemnoideae) and root crops ( Colocasia , commonly known as taro). Here, we determined the chloroplast genome of Symplocarpus renifolius and compared the factors, such as genes and inverted repeat (IR) junctions and performed phylogenetic analysis using other Araceae species. The chloroplast genome of S. renifolius is 158,521 bp and includes 113 genes...
November 16, 2017: Genes
https://www.readbyqxmd.com/read/28961783/the-velamen-radicum-is-common-among-terrestrial-monocotyledons
#8
Gerhard Zotz, Nina Schickenberg, Dirk Albach
Background: The velamen radicum, a spongy and usually multiple-layered root epidermis composed of dead cells at maturity, is a textbook example of an adaptation that is typically associated with epiphytic orchids. Scope: Based on an extensive literature review, the occurrence of this structure was documented in approximately 240 genera of terrestrial monocotyledons (162 orchid and 74 non-orchid genera) and in one genus of dicotyledons. Mapping this character on a phylogenetic tree reveals that a velamen is found throughout the monocotyledons, ranging from members of early-branching Araceae to derived Cyperaceae...
November 10, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28794059/evolution-and-development-of-monocot-stomata
#9
Paula J Rudall, Elisabeth D Chen, Erin Cullen
PREMISE OF THE STUDY: Leaves of monocots are typically linear with parallel venation, though a few taxa have broad leaves. Studies of stomatal patterning and development in monocots required updating in the context of rapidly improving knowledge of both the phylogenetic and development-genetic context of monocots that facilitate studies of character evolution. METHODS: We used an existing microscope-slide collection to obtain data on stomatal structure across all the major monocot clades, including some species with relatively broad leaves...
August 9, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28750276/phylogenetic-trends-in-the-evolution-of-inflorescence-odours-in-amorphophallus
#10
REVIEW
Geoffrey C Kite, Wilbert L A Hetterscheid
The chemical composition of inflorescence odours of 80 species of Amorphophallus (Araceae) were determined by headspace-thermal desorption GC-MS. When compared to published molecular phylogenies of the genus, the data reveal evidence both of phylogenetic constraint and plasticity of odours. Dimethyl oligosulphides were found as common constituents of Amorphophallus odours and were the most abundant components in almost half of the species studied. Odours composed mainly of dimethyl oligosulphides, and perceived as being 'gaseous', were only found among Asian species, and some of these species clustered in certain clades in molecular phylogenies; e...
October 2017: Phytochemistry
https://www.readbyqxmd.com/read/28674495/anti-allergic-hydroxy-fatty-acids-from-typhonium-blumei-explored-through-chemgps-np
#11
Michal Korinek, Yi-Hong Tsai, Mohamed El-Shazly, Kuei-Hung Lai, Anders Backlund, Shou-Fang Wu, Wan-Chun Lai, Tung-Ying Wu, Shu-Li Chen, Yang-Chang Wu, Yuan-Bin Cheng, Tsong-Long Hwang, Bing-Hung Chen, Fang-Rong Chang
Increasing prevalence of allergic diseases with an inadequate variety of treatment drives forward search for new alternative drugs. Fatty acids, abundant in nature, are regarded as important bioactive compounds and powerful nutrients playing an important role in lipid homeostasis and inflammation. Phytochemical study on Typhonium blumei Nicolson and Sivadasan (Araceae), a folk anti-cancer and anti-inflammatory medicine, yielded four oxygenated fatty acids, 12R-hydroxyoctadec-9Z,13E-dienoic acid methyl ester (1) and 10R-hydroxyoctadec-8E,12Z-dienoic acid methyl ester (2), 9R-hydroxy-10E-octadecenoic acid methyl ester (3), and 12R(*)-hydroxy-10E-octadecenoic acid methyl ester (4)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28642987/chromosome-number-and-genome-size-variation-in-colocasia-araceae-from-china
#12
Guang-Yan Wang, Xiao-Ming Zhang, Min Qian, Xiang-Yang Hu, Yong-Ping Yang
Chromosome number and genome size are important cytological characters that significantly influence various organismal traits. We investigated chromosome number and genome size variation in 73 accessions belonging to four Colocasia species from China. Five different chromosome counts (2n = 26, 28, 38, 42, and 56) were found, the largest one representing a new record in Colocasia. The basic chromosome numbers are x = 13, 14, and 19, corresponding to 2x, 3x, and 4x cytotypes. Yunnan Province, China is considered the center of Colocasia polyploid origin...
November 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28539721/phytochemical-and-biological-evaluations-of-arum-hygrophilum-boiss-araceae
#13
Fatma U Afifi, Violet Kasabri, Simona Litescu, Ismail F Abaza, Khalid Tawaha
BACKGROUND: Arum hygrophilum is a traditional medicinal plant indigenous to Jordan. The present study explores its phytochemistry, antioxidative, antidiabesity, and antiproliferative potentialities. MATERIALS AND METHODS: Column chromatography and HPLC-MS analysis were used for its phytochemical evaluation. Using leaf crude water and ethanol extracts, the antioxidative capacities, their modulation of pancreatic β-cell proliferation, and insulin secretion as well as glucose diffusion and enzymatic bioassays were evaluated...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28473720/organ-specific-transcriptome-profiling-of-metabolic-and-pigment-biosynthesis-pathways-in-the-floral-ornamental-progenitor-species-anthurium-amnicola-dressler
#14
Jon Y Suzuki, Teresita D Amore, Bernarda Calla, Nathan A Palmer, Erin D Scully, Scott E Sattler, Gautam Sarath, Joanne S Lichty, Roxana Y Myers, Lisa M Keith, Tracie K Matsumoto, Scott M Geib
Anthurium amnicola Dressler possesses a number of desirable and novel ornamental traits such as a purple-colored upright spathe, profuse flowering, and floral scent, some of which have been introgressed into modern Anthurium cultivars. As a first step in identifying genes associated with these traits, the transcriptome from root, leaf, spathe, and spadix from an accession of A. amnicola was assembled, resulting in 28,019 putative transcripts representing 19,458 unigenes. Genes involved in pigmentation, including those for the metabolism of chlorophyll and the biosynthesis of carotenoids, phenylpropanoids, and flavonoids were identified...
May 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28163967/pregnancy-detecting-plants-used-in-remo-and-ijebu-areas-of-ogun-state-nigeria
#15
Adediwura Fred-Jaiyesimi, Jolaade Taiwo
AIM/BACKGROUND: Plants and plants extracts are employed in cultures for religious purposes, as beauty therapies, in the detection and management/treatment of diseases. MATERIALS AND METHODOLOGY: In this study, an ethnobotanical studies of plants used in detecting pregnancy in Ijebu and Remo areas of Ogun State were carried out using semi-structured to obtain demographic data, local names of plants, the morphological parts used. Furthermore, a phytochemical analysis of two of the identified plants was performed...
January 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28149697/floral-vasculature-and-its-variation-for-carpellary-supply-in-anthurium-araceae-alismatales
#16
Letícia P Poli, Lívia G Temponi, Alessandra I Coan
INTRODUCTION AND AIMS: Anthurium is the largest genus of Araceae, with 950 species distributed in the neotropics. Despite the great diversity of the genus, the knowledge of its floral vasculature is based on observations in only two species, viz. A. denudatum and A. lhotzkyanum, with remarkable variation in vascular carpellary supply: carpels are either vascularized by ventral bundles alone or by reduced dorsal bundles in addition to the ventral ones. Our main objective is to test this peculiar variation through a detailed anatomical study of the floral vasculature in taxa belonging to some sections of Anthurium designated as monophyletic groups in recent phylogenies...
2017: PeerJ
https://www.readbyqxmd.com/read/28101369/a-single-gene-controls-leaf-background-color-in-caladium-araceae-and-is-tightly-linked-to-genes-for-leaf-main-vein-color-spotting-and-rugosity
#17
Zhe Cao, Shunzhao Sui, Qian Yang, Zhanao Deng
Modern cultivated caladiums (Caladium×hortulanum) are grown for their long-lasting and colorful leaves. Understanding the mode of inheritance for caladium leaf characteristics is critical for plant breeders to select appropriate parents, predict progeny performance, estimate breeding population sizes needed, and increase breeding efficiencies. This study was conducted to determine the mode of inheritance of two leaf background colors (lemon and green) in caladium and to understand their relationships with four other important leaf characteristics including leaf shape, main vein color, spotting, and rugosity...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28081503/in-silico-identification-of-alternative-oxidase-2-aox2-in-monocots-a-new-evolutionary-scenario
#18
José Hélio Costa, Clesivan Pereira Dos Santos, Beatriz de Sousa E Lima, Anthônio Nunes Moreira Netto, Kátia Daniella da Cruz Saraiva, Birgit Arnholdt-Schmitt
We identified AOX2 genes in monocot species from Lemnoideae (Spirodela polyrhiza, Lemna gibba and Landoltia punctata), Pothoideae (Anthurium andraeanum and Anthurium amnicola) and Monsteroideae (Epipremnum aureum) subfamilies within the Araceae, an early-diverging monocot family. These findings highlight the presence of AOX2 in the most ancient monocot ancestor and also that at least partial loss of this gene occurred during speciation events within several monocot orders. The presence of AOX2 in monocot species challenges (1) new understanding of the evolutionary history of the AOX gene family in angiosperms and (2) drives experimental and bioinformatics efforts to explore functional relevance of the two AOX gene family members for plant growth and development...
March 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28065928/unveiling-the-osmophores-of-philodendron-adamantinum-araceae-as-a-means-to-understanding-interactions-with-pollinators
#19
Patrícia Gonçalves-Souza, Clemens Schlindwein, Stefan Dötterl, Elder Antônio Sousa Paiva
Background and Aims: Araceae species pollinated by nocturnal Cyclocephalini beetles attract their pollinators by inflorescence scents. In Philodendron , despite the intense odour, the osmophores exhibit no definite morphological identity, making them difficult to locate. This may explain why structural studies of the scent-releasing tissue are not available so far. Methods: Several approaches were employed for locating and understanding the osmophores of Philodendron adamantinum ...
March 1, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28026825/transformation-of-medicinal-plants-using-agrobacterium-tumefaciens
#20
REVIEW
Katarzyna Bandurska, Agnieszka Berdowska, Małgorzata Król
For many years attempts are made to develop efficient methods for transformation of medicinal plants via Agrobacterium tumefaciens. It is a soil bacteria which possess a natural ability to infect plants in places of injures which results in arise of cancerous growths (crown gall). This is possible thanks a transfer of fragment of Ti plasmid into plant cells and stable integration with a plant genome. Efficiency of medicinal plant transformation depends on many factors for example: Agrobacterium strain, methods and procedures of transformation as well as on plant species, type and age of the explants and regeneration conditions...
December 20, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
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