A5015405523- Plant Taxonomy and Phylogenetics
- Botany, Ecology, and Taxonomy Studies
- Mediterranean and Iberian flora and fauna
- Plant Diversity and Evolution
- Plant and fungal interactions
- Genomics and Phylogenetic Studies
- Botanical Research and Applications
- Plant and soil sciences
- Botanical Research and Chemistry
- Botany and Plant Ecology Studies
- Rangeland and Wildlife Management
- Genetic diversity and population structure
- Archaeology and Natural History
- Phytochemicals and Antioxidant Activities
- Agroforestry and silvopastoral systems
- Forest ecology and management
- Plant pathogens and resistance mechanisms
- Scarabaeidae Beetle Taxonomy and Biogeography
- Plant tissue culture and regeneration
- Plant and Fungal Species Descriptions
- Ruminant Nutrition and Digestive Physiology
- Seed and Plant Biochemistry
- Essential Oils and Antimicrobial Activity
- Phytochemistry and Biological Activities
- Environmental and Cultural Studies in Latin America and Beyond
Instituto Politécnico Nacional
2014-2024
Centro de Investigación y Desarrollo
2007-2015
McGill University
1994-2011
Abstract The grass subtribe Sporobolinae contains six genera: Calamovilfa (5 spp. endemic to North America), Crypsis (10 Asia and Africa), Psilolemma (1 sp. Spartina (17 centered in Sporobolus (186 distributed worldwide), Thellungia Australia). Most species this have spikelets with a single floret, 1‐veined (occasionally 3 or more) lemmas, ciliate membrane line of hairs for ligule, fruits free pericarps (modified caryopses). Phylogenetic analyses were conducted on 177 (281 samples), which...
Fruits of wild species the genus Physalis are consumed as food and calyces leaves used in traditional medicine. The phenolic composition this have been scarcely studied. To contribute to a better knowledge for use all potential these plants, leaves, fruits, five were analyzed their antioxidant properties.Important tissue- species-dependent variations found. Calyces subulata showed highest contents phenolics (176.58 mg gallic acid equivalents/g dry tissue), flavonoids (39.63 mg/g acids (50.57...
The antioxidant properties and the flavonoid composition of extracts different hydrophobicity prepared from entire edible flowers Agave durangensis were evaluated. Separately, total tepals anthers–pollen analyzed in same manner. high performance liquid chromatography with photodiode array detection (HPLC–DAD) analysis revealed a eight flavonols (five quercetin glycosides three kaempferol glycosides), varying number concentration extracts. showed highest content (1210.4 µg/g dry extract) most...
Abstract The subtribe Eleusininae (Poaceae: Chloridoideae: Cynodonteae) is a diverse group containing about 212 species in 31 genera found primarily low latitudes Africa, Asia, Australia, and the Americas, classification among these poorly understood. Therefore, we investigated following 28 genera: Acrachne, Afrotrichloris, Apochiton, Astrebla, Austrochloris, Brachyachne, Chloris, Chrysochloa, Coelachyrum, Cynodon, Daknopholis, Dinebra, Diplachne, Disakisperma, Eleusine, Enteropogon,...
Abstract Morphologically, the tribe Cynodonteae is a diverse group of grasses containing about 839 species in 96 genera and 18 subtribes, found primarily Africa, Asia, Australia, Americas. Because classification these has been poorly understood, we conducted phylogenetic analysis on 213 (389 samples) using sequence data from seven plastid regions (rps16‐trnK spacer, rps16 intron, rpoC2, rpl32‐trnL ndhF, ndhA ccsA) nuclear ribosomal internal transcribed spacer (ITS 1 & 2) to infer...
Antecedentes La clasificación de la familia Poaceae ha cambiado a lo largo los años, por evolución distintas áreas del conocimiento sistemática, tanto en sus aspectos teóricos como prácticos. morfología y anatomía siguen siendo fuentes importantes información taxonómica las gramíneas. Sin embargo, últimos 20 trabajos moleculares que buscan inferir filogenia diferentes taxa, han dominado el escenario sistemática familia, derivado cambios re-arreglos todos niveles taxonómicos. Objetivo:...
Abstract The classification of twenty Cynodonteae genera ( Bewsia, Craspedorhachis, Ctenium, Dignathia, Farrago, Gouinia, Gymnopogon, Latipes, Leptocarydion, Leptothrium, Lophacme, Lopholepis, Mosdenia, Perotis, Schenckochloa, Toliara, Trichoneura, Trigonochloa, Triplasis, Vaseyochloa ) has been poorly understood. goals this study were to reconstruct the evolutionary history tribe Cynodonteae, emphasizing these using molecular data with increased species sampling. A phylogenetic analysis was...
Abstract Bouteloua (Poaceae: Chloridoideae: Cynodonteae; Boutelouiane) is an important genus of forage grasses containing 60 species found primarily in the Americas with a center diversity northern Mexico. A modern subgeneric classification lacking. The goals our study were to reconstruct evolutionary history among using molecular data increased sampling compared previous studies. phylogenetic analysis was conducted on 209 samples, which 59 (206 individuals) , two plastid ( rpl32‐trnL spacer...
The antioxidant properties and the foliar phenol composition of 25 Mexican varieties Phaseolus vulgaris L. (common bean) were evaluated. coccineus was analysed with comparative aims. high performance liquid chromatography photodiode array detection analysis revealed 27 phenolics in leaves P. (13 quercetin-3-O-glycosides, 8 kaempferol-3-O-glycosides, 2 myricetin glycosides 4 phenolic acids) 5 (2 kaempferol-3-O-glycoside, apigenin-7-O-glycoside 1 luteolin-7-O-glycoside). All extracts showed...
Epigenetic modifications are key factors modulating the expression of genes involved in synthesis phytochemicals. The knowledge plant epigenetic and genetic variations can contribute to enhance production bioactive compounds. These issues have been little explored thus far Rorippa nasturtium var. aquaticum L. (watercress), an edible medicinal plant. aim current study was determine compare phenolic composition between wild cultivated watercress. Significant differences were found quantitative...
Abstract To investigate the evolutionary relationships among species of Afrotrichloris, Apochiton, Coelachyrum, Dinebra, Eleusine, Leptochloa , and Schoenefeldia subtribe Eleusininae, a phylogeny based on DNA sequences from nine gene regions (ITS, rps16‐trnK, rps3, rps16, rpoC2, rpl32‐trnL, ndhF, ndhA, ccsA ) is presented. Previous molecular phylogenies indicated that Coelachyrum was polyphyletic paraphyletic, with Afrotrichloris embedded within it. Apochiton burttii in clade paired C....
Karyomorphological analysis of four species Schoenoplectus (Cyperaceae) from north-central Mexico were carried out. Chromosome numbers ranged 2n = 38 to 84. New records counting are given for acutus var. occidentalis (2n and 84) S. americanus 66). Intra-individual variation in chromosome number is reported the first time acutus, with a rare polyploid mixoploidy prevalence cells (36 small + 2 compound, larger chromosomes) few 84 small, dot-shaped chromosomes, this being record Cyperaceae....
Después de 12 años que fuera publicado el tratamiento florístico “Las gramíneas Durango” se presenta una relación nombres aceptados, actualizados con base en trabajos botánicos recientes, las Durango, México. Se reconocen un total 91 géneros, 367 especies, 15 subespecies, 55 variedades y 2 formas. De ellos, 14 géneros representan nuevos registros para la entidad, mientras 17 previamente reconocidos corresponden a sinónimos inventario actual excluyen tres registrados anteriormente. En los...
Our revision of the grasses Chihuahua includes 385 species in 95 genera, 15 subspecies, 29 varieties, and 4 forms. We provide keys for determination, detailed descriptions, nomenclatural synonyms, ecological information on habitat, distribution based herbarium specimens, illustrations 251 8 varieties. a new combination Cenchrus polystachios subsp. setosus.
Background: Secondary metabolites are important chemomarkers. However, as a system to confront biotic and abiotic stress, chemical composition can vary, improving the phenotypic plasticity of plants. We determined potential foliar floral phenolic composition, carotenoid contents discriminate between two subspecies Fouquieria splendens assessed effect atypical environmental conditions on relict population . Hypothesis: hypothesized that differences have arisen analyzed in allowing...
Agave durangensis propagates basically by seeds. This species is economically important because it supports a mescal industry in Durango, Mexico. At present, its exploitation overall collecting plants from the wild populations. In order to reduce negative impact of collection natural populations A. and improve industry, necessary establish plantations with selected seeds for high vigor. this paper, variation morphological features, physiological behavior germination, biochemical indicators...
Muhlenbergiaspatha , previously known only from near the type locality in San Luis Potosí, is reported two localities Zacatecas, Mexico. Historically, botanists have overlooked this diminutive annual. To clarify affinities of M.spatha we present a molecular phylogeny emphasising species M.subg.Pseudosporobolus using sequence data plastid markers ( rpl32-trnL and rps16 intron) nrDNA ITS. In addition, include an updated description, illustration discussion habitat .