Results 21 to 30 of about 234,560 (216)

Secrets within stems: The cryptic Apodanthes caseariae (Apodanthaceae), a rare neotropical holoendoparasite

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Holoendoparasites are extremely rare plants that live entirely hidden inside their hosts, with only flowers and fruits visible. We studied Apodanthes caseariae, found in central and South America, parasitizing Casearia sylvestris. Little is known about its life cycle.
Jessica A. Ramírez‐Ramírez   +4 more
wiley   +1 more source

Trace Element Analysis in Human Neuroblastoma Cell Spheroids Supplemented With ZnCl2 by Micro‐XRF

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Neuroblastoma, the most common extracranial solid tumor of childhood, is responsible for ~10% of pediatric cancer deaths and has high potential for metastasis. Metals are extremely important in biological processes, and changes in their levels have been correlated with the development of cancerous growth.
J. E. P. Rosa   +10 more
wiley   +1 more source

The Melianthaceous seed and its Rhamnaceous affinity [PDF]

open access: yes, 1998
. La semilla de Melianthaceae y su afinidad con Rhamnaceae. En el presente trabajo, se ha estudiado la anatomia y morfología de la semilla de Bersama (Bersamataceae) y Melianthus (Melianthaceae) con el objeto de clarificar su posición sistemática.
Doweld, Alexander B.
core   +2 more sources

Community‐level effects of Müllerian mimicry on pollinator diversity and functioning

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Müllerian mimicry, a mutualistic interaction in which harmful species evolve similar warning signals, is often accompanied by niche divergence among mimetic species. While these aspects have traditionally been studied in an evolutionary context, their community‐level ...
Paola Laiolo, José Ramón Obeso
wiley   +1 more source

Cnicothamnus lorentzii (Asteraceae): morfoanatomía y arquitectura foliar

open access: yesLilloa, 2014
Ruiz, Ana I.; María E. Guantay; María I. Mercado; Graciela I. Ponessa. 2014. “Cnicothamnus lorentzii (Asteraceae): morfoanatomía y arquitectura foliar”. Lilloa 51 (2).
Ana I. Ruiz   +3 more
doaj  

Expresión de la enzima 11? hidroxiesteroide deshidrogenasa tipo 2 en placenta a término de la gestante obesa

open access: yesRevista Colombiana de Endocrinología, Diabetes y Metabolismo, 2023
Contexto: un ambiente materno obesogénico puede impactar directamente tanto sobre la función placentaria como el desarrollo y crecimiento del feto. La enzima 11? hidroxiesteroide deshidrogenasa tipo 2 (11?-HSD2), ubicada en sincitiotrofoblasto, inactiva
Camila del Pilar Rodríguez   +3 more
doaj   +1 more source

Sensory Biology of the Franciscana (Pontoporia blainville, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Morfoanatomía y arquitectura foliar de Carica quercifolia (Caricaceae)

open access: yesLilloa, 2013
Ruiz, Ana I.; María E. Guantay; María I. Mercado; Graciela Ponessa. 2013. Lilloa 50 (2). “Morfoanatomía y arquitectura foliar de Carica quercifolia (Caricaceae)”.
Ana I. Ruiz   +3 more
doaj  

The intestine as a diagnostic character in identifying certain clupeoids (Engraulididae, Clupeidae, Dussumieriidae) and as a morphometric character for comparing anchoveta (Centengraulis mysticetus) populations [PDF]

open access: yes, 1958
ENGLISH: The several species of clupeoid fishes used as baitfish in the Eastern Pacific tuna fishery are, in some cases, sufficiently similar to make identification difficult.
Horder, Wilhelm
core  

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

open access: yesEcological Entomology, EarlyView.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy