Results 31 to 40 of about 301 (129)

Conservação in vitro de mangabeira da região nordeste do Brasil In vitro conservation of mangaba tree in Northeast Brazil

open access: yesCiência Rural, 2011
A mangabeira (Hancornia speciosa Gomes) é uma espécie cujas regiões de ocorrência natural vêm sofrendo grande pressão antrópica, a qual está provocando erosão genética em muitas populações nativas, principalmente da região Nordeste.
Aline de Jesus Sá   +2 more
doaj   +1 more source

Efeito da sacarose e do sorbitol na conservação in vitro de segmentos nodais de mangabeira Effect of sucrose and sorbitol in the in vitro conservation of mangaba tree nodal segments

open access: yesRevista Ciência Agronômica, 2011
A mangabeira (Hancornia speciosa Gomes) é uma espécie cujas regiões de ocorrência natural vêm sofrendo grande pressão antrópica, a qual está provocando erosão genética em muitas populações nativas, principalmente da região Nordeste.
Micaele da Costa Santos   +4 more
doaj   +1 more source

Agentes osmóticos e temperatura na conservação in vitro de sempre-viva Osmotic agents and temperature on in vitro conservation of sempre-viva

open access: yesCiência Rural, 2011
A conservação in vitro é uma estratégia de conservação ex situ que garante a manutenção da integridade genética e biológica das espécies. O objetivo deste estudo foi avaliar o efeito de agentes osmóticos e temperatura na conservação in vitro de ...
Alone Lima- Brito   +5 more
doaj   +1 more source

From Herbarium to Landscape: New Records and Mapping Rare and Threatened Species of Brazilian Atlantic Rainforest

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
Botanical collections remain limited in the mountainous areas of the Brazilian Atlantic Rainforest, which compromises biogeographic knowledge of endangered and locally endemic species and many others that have not yet been described. These gaps hinder the accuracy of biodiversity indicators, limit the discovery and description of new species, restrict ...
Otávio Miranda Verly   +8 more
wiley   +1 more source

Conservação in vitro de germoplasma de abacaxi tratado com paclobutrazol In vitro conservation of pineapple germplasm treated with paclobutrazol

open access: yesPesquisa Agropecuária Brasileira, 2004
O objetivo deste trabalho foi avaliar o efeito do paclobutrazol (PBZ) no crescimento in vitro de plantas de abacaxi visando à conservação do germoplasma. Utilizou-se o meio MS suplementado com 30 g L-1 de sacarose e 8 g L-1 de ágar.
Ana Maria Mascarenhas Eloy Canto   +5 more
doaj   +1 more source

Environmental DNA Template Variation: Its Relevance for Species Detection and Conservation

open access: yesFreshwater Biology, Volume 70, Issue 3, March 2025.
ABSTRACT Accurate species monitoring is foundational for understanding and assessing species extinction risk. Environmental DNA (eDNA) based species detection methods have been proposed as fast and powerful biodiversity monitoring tools. Yet, these methods are susceptible to errors that might hinder the assessment of species extinction risk.
Sofia Nogueira   +8 more
wiley   +1 more source

Micropropagation and in vitro conservation of Neoglaziovia variegata (Arr. Cam.) mez, a fiber producing bromeliad from Brazil

open access: yesBrazilian Archives of Biology and Technology, 2009
Neoglaziovia variegata (Arr. Cam.) Mez is a Bromeliaceae native to the Caatinga, used for fiber extraction in the Northeast Region of Brazil. The antropic activity has place this species among the threatened ones.
Daniela Garcia Silveira   +5 more
doaj   +1 more source

Antimicrobial activity of stingless bee honey (Tribe: Meliponini) on clinical and foodborne pathogens: A systematic review and meta‐analysis

open access: yesFood Frontiers, Volume 5, Issue 3, Page 964-993, May 2024.
A total of 314 studies were retrieved and 117 full‐length articles were reviewed. The final data set included 34 studies covering different global regions. All available and relevant data from each study were extracted, more precisely, stingless bee species, honey applied concentration, target microorganism, botanical origin, methodology, biofilm ...
Fausto Cabezas‐Mera   +4 more
wiley   +1 more source

Skin microbiome disturbance linked to drought‐associated amphibian disease

open access: yesEcology Letters, Volume 27, Issue 1, January 2024.
Amphibian skin bacteria are known to play an important role in inhibiting the widespread fungal pathogen Batrachochytrium dendrobatidis (Bd). We monitored a population of pumpkin toadlets in the Brazilian Atlantic Forest throughout a short‐term drought and investigated links between skin microbiome health, pathogen susceptibility and host mortality ...
Shannon Buttimer   +6 more
wiley   +1 more source

Conservação in vitro de germoplasma indexado de três cultivares de amarílis (Hippeastrum Herb.).

open access: yesOrnamental Horticulture, 2007
Pesquisaram-se as os efeitos das concentrações de 10, 20, 30 e 40 g L-1 de sacarose, adicionadas à solução salina MS de Murashige e Skoog (1962) a 50 e 100% e das temperaturas em sala de crescimento de 18 oC e 25 oC, na conservação in vitro de três ...
Lincoln Amaral   +3 more
doaj   +1 more source

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