Results 41 to 50 of about 395 (134)

Genomics and morphometry of herbarium specimens elucidate the origin of the Cape Verde date palm (Phoenix atlantica A.Chev.) and highlight its agronomic potential

open access: yesPLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1358-1371, September 2025.
As climate change accelerates, breeding resilient crops is urgent. The date palm (Phoenix dactylifera L.), a crucial 18 billion USD fruit crop, underpins North African and West Asian oasis agroecosystems. This study investigates the genetics and morphology of its closest wild relative, the endemic and endangered Cape Verde date palm (Phoenix atlantica ...
Jerónimo Cid‐Vian   +14 more
wiley   +1 more source

Comparative stereologic study between secretory and maturation ameloblasts in rat incisors Estudo estereológico comparativo entre os ameloblastos de secreção e de maturação em incisivos de ratos

open access: yesJournal of Applied Oral Science, 2003
The ameloblasts both in secretion phase and in smooth-ended ameloblasts in maturation phase were studied using stereologic methods in transmission electron microscopy (TEM). From secretion to maturation phase of amelogenesis, the nucleus volume decreased
Gerson Francisco de Assis   +4 more
doaj   +1 more source

Thermotolerance in Miniature: Heat Resilience of Moss Propagules From Brazilian Ferruginous Rocky Outcrops

open access: yesAustral Ecology, Volume 50, Issue 9, September 2025.
ABSTRACT Harsh environments present substantial challenges to most organisms, making survival and thriving difficult. Such conditions often include extreme temperatures, intense radiation, strong winds, and very low or high humidity levels, resulting in a limited availability of resources like water and nutrients.
Guilherme Freitas Oliveira   +3 more
wiley   +1 more source

Chromosomal Inversion Associated With Diet Differences in Common Quails Sharing Wintering Grounds

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
A large chromosomal inversion in common quails (Coturnix coturnix) is associated with phenotypic traits. In a wintering population in southern Spain, we found all three karyotypes coexisting but showing differences in migratory behavior and diet, as exemplified by the isotopic signature.
Celia Vinagre‐Izquierdo   +4 more
wiley   +1 more source

Morfologia e distribuição de galhas foliares de Anacardium occidentale L. (Anacardiaceae)

open access: yesJournal of Bioenergy and Food Science, 2015
Galhas são estruturas que exibem associações específicas entre o indutor e a planta hospedeira, onde são evidenciadas modificações morfológicas, anatômicas e químicas dos tecidos vegetais.
Claudia Scareli-Santos   +3 more
doaj   +1 more source

Gill evolution in Neotropical electric fishes: Comparative phylogenetic evidence for hypoxia‐driven adaptation

open access: yesFunctional Ecology, Volume 39, Issue 8, Page 1940-1956, August 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Tropical freshwater fishes are often exposed to hypoxia, which limits aerobic metabolism and drives the evolution of diverse physiological, behavioural and morphological adaptations.
William G. R. Crampton   +4 more
wiley   +1 more source

Morphoanatomy of the stem in Cyperaceae Morfoanatomia do caule de algumas Cyperaceae

open access: yesActa Botânica Brasílica, 2009
Cyperaceae are usually perennial, with underground stems mainly rhizomatous, however, other stem types may also occur, such as corms and tubers. The underground stems of five Cyperaceae species were examined.
Ana Claudia Rodrigues   +1 more
doaj   +1 more source

ANÁLISIS DE LA CLARIFICACIÓN DENTAL COMO MÉTODO PARA EVALUAR EL LOCALIZADOR APICAL: UN ESTUDIO DESCRIPTIVO EXPLORATORIO IN VITRO

open access: yesActa Odontológica Colombiana, 2012
Objetivo: Evaluar cuatro técnicas de manejo de muestras dentales, propuestas para analizarla precisión de los localizadores electrónicos de ápice radicular. Materiales y métodos: Se realizó un estudio descriptivo exploratorio in vitro.
Anuar Elián Barona Triviño   +3 more
doaj  

Absorção de anticorpos do colostro em bezerros: II. Estudo no intestino delgado distal Colostral antibodies absorption in calves: II. Distal small intestine

open access: yesRevista Brasileira de Zootecnia, 2002
Com o objetivo de estudar a morfologia e determinar a localização da enzima fosfatase ácida na região distal do intestino delgado de bezerros, do nascimento ao fechamento intestinal, foram coletadas amostras de 15 animais machos em três idades: ao nascer
Rosana Bessi   +3 more
doaj   +1 more source

Morfologia do adulto de Lampetis nigerrima (Kerremans) (Coleoptera: buprestidae)= Adult morphology in Lampetis nigerrima (Kerremans)(Coleoptera: buprestidae)

open access: yesBioscience Journal, 2013
Esse trabalho teve como objetivo descobrir novas informações sobre a morfologia de adultos de Lampetis nigerrima (Kerremans). Os estudos foram realizados no Laboratório da Universidade Federal de Viçosa e da Universidade Federal de Curitiba.
Janaína De Nadai Corassa   +3 more
doaj  

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