Results 1 to 10 of about 12,211 (148)

Revisiting the phylogeny and taxonomy of the Pithecellobium clade (Leguminosae, Caesalpinioideae) with new generic circumscriptions [PDF]

open access: yesPhytoKeys, 2022
We present the most complete molecular phylogeny to date of the Pithecellobium clade of subfamily Caesalpinioideae. This neotropical group was informally recognised (as the Pithecellobium alliance) at the end of the 20th century by Barneby and Grimes ...
Iván Tamayo-Cen   +6 more
doaj   +3 more sources

Re-establishment of the genus Pseudalbizzia (Leguminosae, Caesalpinioideae, mimosoid clade): the New World species formerly placed in Albizia [PDF]

open access: yesPhytoKeys, 2022
Following recent mimosoid phylogenetic and phylogenomic studies demonstrating the non-monophyly of the genus Albizia, we present a new molecular phylogeny focused on the neotropical species in the genus, with much denser taxon sampling than previous ...
Gabriela Aviles Peraza   +12 more
doaj   +3 more sources

Evaluación del riesgo de extinción de Beaucarnea pliabilis (Asparagaceae) (despeinada o tsiipil), especie endémica de la península de Yucatán

open access: yesRevista Mexicana de Biodiversidad, 2020
Beaucarnea pliabilis es una especie endémica de la península de Yucatán, clasificada en 1994 por la NOM-059-ECOL-1994 como amenazada debido a su fuerte extracción con fines comerciales y a la fragilidad de su hábitat.
Celene Espadas-Manrique   +4 more
doaj   +1 more source

Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties [PDF]

open access: yesMaterials Research, 2014
The recrystallization of a cold-worked shape memory alloy (SMA) without R-phase transition, i.e. the Ti-45.0Ni-5.0Cu (% at.), has been studied by thermoelectric power (TEP) technique and electrical resistivity change (Dρ) on several heat treated samples ...
Daniel Enrique Soto-Parra   +4 more
doaj   +1 more source

Dinámica Poblacional del Genets y Ramets de Mammillaria gaumeri Cactácea Endémica de Yucatán

open access: yesBotan‪ical Sciences, 2011
Se analizó la dinámica poblacional de genets y ramets de Mammillaria gaumeri, cactácea endémica de Yucatán con el objetivo de generar información demográfica que sustente el cambio de estatus de especie de “protección especial” a “especie en peligro de ...
Merari Ferrer   +4 more
doaj   +1 more source

Notes on the flora of the Yucatan Peninsula VI: Capraria mexicana Moric. Ex Benth. (Scrophulariaceae s.s.), new record and some comments about the genus in the region

open access: yesBotan‪ical Sciences, 2006
Capraria mexicana Moric. ex Benth. es reportada por primera vez para la porción mexicana de la Provincia Biótica Península de Yucatán. Además, se realizan comentarios generales sobre el género Capraria y se incluye una clave para identificar las tres ...
Rodrigo Duno-de-Stefano   +6 more
doaj   +1 more source

Germinación y establecimiento de plántulas de Pterocereus gaumeri, una cactácea columnar, rara y endémica de Yucatán, México

open access: yesBotan‪ical Sciences, 2006
Se evaluó el nodricismo y la depredación sobre la germinación y el establecimiento de nuevos individuos de Pterocereus  gaumeri. Se realizó un experimento de campo con diseño factorial, considerando el factor asociación con cinco niveles (cuatro ...
Martha Méndez   +4 more
doaj   +1 more source

Notas sobre la flora de la Península de Yucatán VII: Boehmeria cylindrica (Urticaceae), un nuevo registro para la región

open access: yesBotan‪ical Sciences, 2007
-
José Luis Tapia   +5 more
doaj   +1 more source

Fructans and other water soluble carbohydrates in vegetative organs and fruits of different Musa spp. accessions

open access: yesFrontiers in Plant Science, 2015
The water-soluble carbohydrates (WSC) glucose, fructose and sucrose are well-known to the great public, but fructan represents another type of WSC that deserves more attention given their prebiotic and immunomodulatory properties in the food context ...
Carlos Ivan eCruz Cardenas   +7 more
doaj   +1 more source

The role of chromatin modifications in somatic embryogenesis in plants

open access: yesFrontiers in Plant Science, 2015
Somatic embryogenesis (SE) is a powerful tool for plant genetic improvement, when used in combination with agricultural traditional techniques, and it is being used to understand the different processes that occur during the development of plant ...
Clelia eDe-la-Peña   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy