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Bignoniaceae

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https://www.readbyqxmd.com/read/28717440/stigmatic-limitations-on-reproductive-success-in-a-paleotropical-tree-causes-and-consequences
#1
Madhu Raina, Raman Kumar, Veenu Kaul
Success in reproduction is subject to the successful initiation as well as successful completion of a chain of consecutive events starting from flower formation and ending with viable seed production. A pivotal role in this chain is played by the stigma which is the seat of pollen recognition and initiation of pollen-pistil interaction. An interesting feature of the family Bignoniaceae is the presence of thigmosensitive stigmas which open, close and re-open in response to touch. Kigelia pinnata bears a touch sensitive stigma and is a low fruit setter in Jammu and Kashmir (India)...
July 2017: AoB Plants
https://www.readbyqxmd.com/read/28634494/antiviral-activity-of-fridericia-formosa-bureau-l-g-lohmann-bignoniaceae-extracts-and-constituents
#2
Geraldo Célio Brandão, Erna G Kroon, José D Souza Filho, Alaíde Braga Oliveira
A phytochemical study of Fridericia formosa (Bignoniaceae) ethanol extracts of leaves, stems, and fruits was guided by in vitro assays against vaccinia virus Western Reserve (VACV-WR), human herpes virus 1 (HSV-1), murine encephalomyocarditis virus (EMCV), and dengue virus type 2 (DENV-2) by the MTT method. All the ethanol extracts were active against DENV-2, HSV-1, and VACV-WR with best results for the fruits extract against DENV-2 (SI > 38.2). For VACV-WR and HSV-1, EC50 values > 200 μg mL(-1) were determined, while no inhibition of the cytopathic effect was observed with EMCV...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28423086/evaluation-of-cytogenotoxicity-antioxidant-and-hypoglycemiant-activities-of-isolate-compounds-from-mansoa-hirsuta-d-c-bignoniaceae
#3
Joquebede R Pereira, Raphael F Queiroz, Erlânia A DE Siqueira, Ana Christina Brasileiro-Vidal, Antônio E G Sant'ana, Daniel M Silva, Paulo R A DE Mello Affonso
Mansoa hirsuta (Bignoniaceae) is a native plant from caatinga in Brazilian semiarid. This plant has been locally used as antimicrobial and hypoglycemiant agents, but their action mechanisms and toxicity remain largely unknown. Therefore, we evaluated the composition and antioxidant, cytoprotective and hypoglycemiant effects of raw extract, fractions and compounds from leaves of M. hirsuta. The cytogenotoxic effects of ursolic and oleanolic acids, the main phytotherapic components of this plant, were assessed...
January 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28391450/in-vitro-acaricidal-activity-of-crescentia-cujete-l-fruit-pulp-against-rhipicephalus-microplus
#4
Sinval Garcia Pereira, Sandra Alves de Araújo, Giselle Maria Skelding Pinheiro Guilhon, Lourivaldo Silva Santos, Livio Martins Costa Junior
Cattle tick (Rhipicephalus microplus) is an important constraint on livestock production, particularly in tropical and subtropical areas. Synthetic acaricides are the primary method of control this thick. Resistance of R. microplus to synthetic acaricides has given rise to the need of new scientific investigations on alternative ways to control it. The objective of this work was to conduct a chemical investigation of Crescentia cujete L. fruit pulp and to evaluate the acaricide effect on R. microplus larvae of extracts, fractions, and isolated substances from this species...
May 2017: Parasitology Research
https://www.readbyqxmd.com/read/28351401/cognitive-enhancing-and-antioxidant-activities-of-the-aqueous-extract-from-markhamia-tomentosa-benth-k-schum-stem-bark-in-a-rat-model-of-scopolamine
#5
Radu Ionita, Paula Alexandra Postu, Galba Jean Beppe, Marius Mihasan, Brindusa Alina Petre, Monica Hancianu, Oana Cioanca, Lucian Hritcu
BACKGROUND: Plants of the genus Markhamia have been traditionally used by different tribes in various parts of West African countries, including Cameroun. Markhamia tomentosa (Benth.) K. Schum. (Bignoniaceae) is used as an antimalarial, anti-inflammatory, analgesic, antioxidant and anti-Alzheimer agent. The current study was undertaken in order to investigate its anti-amnesic and antioxidant potential on scopolamine-induced cognitive impairment and to determine its possible mechanism of action...
March 28, 2017: Behavioral and Brain Functions: BBF
https://www.readbyqxmd.com/read/28303339/evidence-for-post-zygotic-self-incompatibility-in-handroanthus-impetiginosus-bignoniaceae
#6
Nelson Sabino Bittencourt Júnior
Late-acting self-incompatibility (LSI) has been defined as a genetically controlled self-sterility mechanism that prevents seed set by selfing, despite normal pollen tube growth and ovule penetration in self-pollinated pistils. In species of the Bignoniaceae with LSI, such as Handroanthus impetiginosus, the selfed pistils are characterized by a marked delay in ovule penetration, fertilization, and endosperm initiation, followed by uniform pistil abscission. This highlights the contentious possibility of a post-zygotic self-incompatibility system...
March 16, 2017: Plant Reproduction
https://www.readbyqxmd.com/read/28286535/antileishmanial-activity-of-handroanthus-serratifolius-vahl-s-grose-bignoniaceae
#7
Erica Vanessa Souza Costa, Heliton Patrick Cordovil Brígido, João Victor da Silva E Silva, Marlia Regina Coelho-Ferreira, Geraldo Célio Brandão, Maria Fâni Dolabela
This study aimed to evaluate the leishmanicidal activity of ethanol extract, fractions, and isolated substance from Handroanthus serratifolius against Leishmania amazonensis. Furthermore, this activity was related to cytotoxicity, and the selectivity index was determined. The ethanol extract was obtained by maceration of the stem powder, and the extract was subjected to fractionation on chromatographic column. The lapachol was obtained by acid base extraction followed by purification in chromatographic column...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28010885/gastroprotective-effects-of-hydroethanolic-root-extract-of-arrabidaea-brachypoda-evidences-of-cytoprotection-and-isolation-of-unusual-glycosylated-polyphenols
#8
Claudia Quintino da Rocha, Felipe Meira de-Faria, Laurence Marcourt, Samad Nejad Ebrahimi, Bruna Tiemi Kitano, Amanda Franceschini Ghilardi, Anderson Luiz Ferreira, Ana Cristina Alves de Almeida, Ricardo José Dunder, Alba Regina Monteiro Souza-Brito, Matthias Hamburger, Wagner Vilegas, Emerson Ferreira Queiroz, Jean-Luc Wolfender
The hydroethanolic root extract of Arrabidaea brachypoda, from Bignoniaceae family, a Brazilian medicinal plant, demonstrated significant in vivo gastroprotective effects using different in vivo assays. The activity was evaluated in several models of experimental gastric ulcer in rats (absolute ethanol, glutathione depletion, nitric oxide depletion, non-steroidal anti-inflammatory drugs, pylorus ligation and acetic acid). Using 300 mg/kg (p.o.) the extract significantly reduced gastric injury in all models...
March 2017: Phytochemistry
https://www.readbyqxmd.com/read/27975547/phytochemical-analysis-and-antimicrobial-evaluation-of-dolichandrone-spathacea-bignoniaceae
#9
P D Nguyen, A Abedini, S C Gangloff, J Madoux, C Lavaud
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27937112/antifungal-and-antiproliferative-activities-of-endophytic-fungi-isolated-from-the-leaves-of-markhamia-tomentosa
#10
Mutiat Ibrahim, Nutan Kaushik, Abimbola Sowemimo, Hemraj Chhipa, Trevor Koekemoer, Maryna van de Venter, Olukemi A Odukoya
CONTEXT: Plants harbor endophytes with potential bioactivity. Markhamia tomentosa (Benth) K. Schum ex. Engl. (Bignoniaceae) is reported to possess antioxidant, anti-inflammatory and anticancer activities. OBJECTIVE: The antifungal and antiproliferative properties of endophytic fungi extracts and fractions from M. tomentosa were evaluated. MATERIAL AND METHODS: Endophytic fungi were isolated from the leaves of M. tomentosa and identified by ITS-rDNA sequence analysis...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27870312/mixed-pollen-load-and-late-acting-self-incompatibility-flexibility-in-adenocalymma-peregrinum-miers-l-g-lohmann-bignonieae-bignoniaceae
#11
M O Duarte, C Mendes-Rodrigues, M F Alves, P E Oliveira, D S Sampaio
Mixed cross and self-pollen load on the stigma (mixed pollination) of species with late-acting self-incompatibility system (LSI) can lead to self-fertilized seed production. This "cryptic self-fertility" may allow selfed seedling development in species otherwise largely self-sterile. Our aims were to check if mixed pollinations would lead to fruit set in LSI Adenocalymma peregrinum, and test for evidence of early-acting inbreeding depression in putative selfed seeds from mixed pollinations. Experimental pollinations were carried out in a natural population...
March 2017: Plant Biology
https://www.readbyqxmd.com/read/27813610/karyotype-evolution-in-the-genus-jacaranda-juss-jacarandeae-bignoniaceae-chromosome-numbers-and-heterochromatin
#12
J M P Cordeiro, S A A Lima, S N Paz, A M S Santos, L P Felix
Most taxa in the Bignoniaceae have 2n = 40, but the basal clade Jacarandeae has 2n = 36, suggesting that x = 18 is the ancestral basic number for the family. Variations in heterochromatin band patterns in genera that are numerically stable, such as Jacaranda, could facilitate our understanding of the chromosomal and karyotypic evolution of the family. We characterized heterochromatin distributions in six Jacaranda species using chromomycin A3 (CMA) and 4'6-diamidino-2-phenylindole (DAPI). All of them had 2n = 36, including first counts for Jacaranda bracteata Bureau & K...
October 17, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27785381/chloroplast-sequence-of-treegourd-crescentia-cujete-bignoniaceae-to-study-phylogeography-and-domestication
#13
Priscila Ambrósio Moreira, Cédric Mariac, Nora Scarcelli, Marie Couderc, Doriane Picanço Rodrigues, Charles R Clement, Yves Vigouroux
PREMISE OF THE STUDY: Crescentia cujete (Bignoniaceae) fruit rinds are traditionally used for storage vessels and handicrafts. We assembled its chloroplast genome and identified single-nucleotide polymorphisms (SNPs). METHODS AND RESULTS: Using a genome skimming approach, the whole chloroplast of C. cujete was assembled using 3,106,928 sequence reads of 150 bp. The chloroplast is 154,662 bp in length, structurally divided into a large single copy region (84,788 bp), a small single copy region (18,299 bp), and two inverted repeat regions (51,575 bp) with 88 genes annotated...
October 2016: Applications in Plant Sciences
https://www.readbyqxmd.com/read/27737632/demographical-history-and-palaeodistribution-modelling-show-range-shift-towards-amazon-basin-for-a-neotropical-tree-species-in-the-lgm
#14
Luciana Cristina Vitorino, Matheus S Lima-Ribeiro, Levi Carina Terribile, Rosane G Collevatti
BACKGROUND: We studied the phylogeography and demographical history of Tabebuia serratifolia (Bignoniaceae) to understand the disjunct geographical distribution of South American seasonally dry tropical forests (SDTFs). We specifically tested if the multiple and isolated patches of SDTFs are current climatic relicts of a widespread and continuously distributed dry forest during the last glacial maximum (LGM), the so called South American dry forest refugia hypothesis, using ecological niche modelling (ENM) and statistical phylogeography...
October 13, 2016: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/27672522/a-genomic-approach-for-isolating-chloroplast-microsatellite-markers-for-pachyptera-kerere-bignoniaceae
#15
Jessica N C Francisco, Alison G Nazareno, Lúcia G Lohmann
PREMISE OF THE STUDY: In this study, we developed chloroplast microsatellite markers (cpSSRs) for Pachyptera kerere (Bignoniaceae) to investigate the population structure and genetic diversity of this species. METHODS AND RESULTS: We used Illumina HiSeq data to reconstruct the chloroplast genome of P. kerere by a combination of de novo and reference-guided assembly. We then used the chloroplast genome to develop a set of cpSSRs from intergenic regions. Overall, 24 primer pairs were designed, 21 of which amplified successfully and were polymorphic, presenting three to nine alleles per locus...
September 2016: Applications in Plant Sciences
https://www.readbyqxmd.com/read/27617028/shade-tree-diversity-and-aboveground-carbon-stocks-in-theobroma-cacao-agroforestry-systems-implications-for-redd-%C3%A2-implementation-in-a-west-african-cacao-landscape
#16
Evans Dawoe, Winston Asante, Emmanuel Acheampong, Paul Bosu
BACKGROUND: The promotion of cacao agroforestry is one of the ways of diversifying farmer income and creating incentives through their inclusion in REDD+ interventions. We estimated the aboveground carbon stocks in cacao and shade trees, determined the floristic diversity of shade trees and explored the possibility of implementing REDD+ interventions in cacao landscapes. Using replicated multi-site transect approach, data were collected from nine 1-ha plots established on 5 km long transects in ten cacao growing districts in Ghana West Africa...
December 2016: Carbon Balance and Management
https://www.readbyqxmd.com/read/27529199/insecticidal-properties-of-a-highly-potent-wax-isolated-from-dolichandra-cynanchoides-cham
#17
Georgina Díaz Napal, María C Carpinella, Sara M Palacios
Bioassay-guided fractionation of an ethanolic extract of the aerial parts of Dolichandra cynanchoides Cham. (Bignoniaceae) led to the isolation of a natural wax with anti-insect activity against Spodoptera frugiperda (Noctuidae) and Epilachna paenulata (Coleptera). The compound was identified spectroscopically as an ester of a C27 fatty acid and a C25 alcohol, pentacosyl heptacosanoate (1). The effective doses of 1 for 50% feeding inhibition (ED50) of S. frugiperda and E. paenulata were 0.82 and 8.53 µg/cm², respectively, in a choice test, while azadirachtin showed ED50 of 0...
August 11, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27489485/a-new-species-of-amphitecna-bignoniaceae-endemic-to-chiapas-mexico
#18
Andres Ernesto Ortiz-Rodriguez, Carlos Manuel Burelo Ramos, Héctor Gomez-Dominguez
Amphitecna loreae Ortiz-Rodr. & Burelo, sp. nov. (Bignoniaceae), a new species endemic to the karst rainforest in southern Mexico, is described and illustrated. The new species differs from the other species of Amphitecna by the combination of cauliflorous inflorescences, larger flowers, buds rounded at apex, and globose-ellipsoid rather than acuminate fruits. A key to the Mexican species of Amphitecna is presented.
2016: PhytoKeys
https://www.readbyqxmd.com/read/27458982/coalescent-simulation-and-paleodistribution-modeling-for-tabebuia-rosealba-do-not-support-south-american-dry-forest-refugia-hypothesis
#19
Warita Alves de Melo, Matheus S Lima-Ribeiro, Levi Carina Terribile, Rosane G Collevatti
Studies based on contemporary plant occurrences and pollen fossil records have proposed that the current disjunct distribution of seasonally dry tropical forests (SDTFs) across South America is the result of fragmentation of a formerly widespread and continuously distributed dry forest during the arid climatic conditions associated with the Last Glacial Maximum (LGM), which is known as the modern-day dry forest refugia hypothesis. We studied the demographic history of Tabebuia rosealba (Bignoniaceae) to understand the disjunct geographic distribution of South American SDTFs based on statistical phylogeography and ecological niche modeling (ENM)...
2016: PloS One
https://www.readbyqxmd.com/read/27430309/alleviation-of-4-nitroquinoline-1-oxide-induced-oxidative-stress-by-oroxylum-indicum-l-leaf-extract-in-albino-wistar-rats
#20
Shalini Mohan, Kalaivani Thiagarajan, Balaji Sundaramoorthy, Vivek Gurung, Manas Barpande, Shilpi Agarwal, Rajasekaran Chandrasekaran
BACKGROUND: 4-nitroquinoline 1-oxide (4-NQO) is a mutagen known to be responsible for causing cancer by generating oxidative stress in humans. Oroxylum indicum (L.) possesses various bioactive compounds with antioxidant properties. In this connection, the present study aims to analyze the alleviation of 4-NQO induced oxidative stress in albino Wistar rats using O. indicum (L.) leaf extract. METHODS: O. indicum (L.) belonging to the family Bignoniaceae, has anticancer and anti-inflammatory properties...
July 19, 2016: BMC Complementary and Alternative Medicine
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