Results 31 to 40 of about 31,236 (230)

Transformação genética em espécies florestais.

Ciência Florestal, 2010
A transformação genética, que compreende a introdução de genes exógenos de forma controlada no genoma de uma célula vegetal e posterior regeneração da planta transgênica, tem contribuído com os programas de melhoramento genético de plantas pela obtenção ...
Claudia Studart-Guimarães, Cristiano Lacorte, Ana Cristina Miranda Brasileiro   +2 more
doaj   +1 more source

Transferência de biotecnologia

Revista Interdisciplinar do Direito - Faculdade de Direito de Valença, 2020
O artigo trata da transferência de Biotecnologia em um confronto com a transferência geral de tecnologia e do reconhecimento do regime das obrigações de meio e resultado nos contratos que tenham como objeto tecnologia a ser cedida.
openaire   +3 more sources

Ecological significance of fruit displays in Myrtaceae: relationship between fruit colour, maturation stage, attractiveness and seed germination

Oikos, EarlyView.
Fruit colour has long fascinated scientists and is widely considered an evolutionary adaptation to attract both avian and mammalian frugivores. While fleshy fruits play a key role in plant–animal interactions by promoting seed dispersal, the functional significance of colour variation, particularly multicoloured displays during ripening, remains poorly
Hercília Freitas da Cunha, Eduardo Luiz Voigt, Eliana Cazetta, Vanessa Graziele Staggemeier   +3 more
wiley   +1 more source

17‐epi‐Melianodiol, a new protolimonoid from Melia azedarach fruits, exhibits larvicidal activity and is associated with oxidative imbalance and midgut epithelial damage in Aedes aegypti larvae

Pest Management Science, EarlyView.
The bio‐guided phytochemical study resulted in the new compound 17‐epi‐melianodiol. The compound eliminated 100% of Aedes aegypti larvae at 100 ppm, causing pronounced morphological changes, cuticular damage, and extensive vacuolization. Abstract BACKGROUND In Brazil, Aedes aegypti is the primary vector of arboviruses such as dengue, chikungunya ...
Kethleen Duarte Crespo Soares, Thalya Soares Ribeiro Nogueira, Maria Aparecida Aride Bertonceli, Renata Rodrigues da Silva Robaina, Leticia Oliveira da Rocha, Francisco José Alves Lemos, Kátia Valevski Sales Fernandes, Raimundo Braz‐Filho, Ivo José Curcino Vieira   +8 more
wiley   +1 more source

Large‐Scale Structural Dynamics in the Tail Fiber Modulate the Infective Transition of the T7 Bacteriophage

Small, EarlyView.
During host recognition, the fibers of T7 bacteriophages transition from a capsid bound state to an extended conformation, which requires some level of fiber flexibility. By using high‐speed atomic force microscopy, we show that the fibers have an internal molecular hinge and a torsionally compliant coiled‐coil region.
Luca Elizabet Kosik, Miklós Cervenak, Dominik Sziklai, Andrea Balogh‐Molnár, Negar Rahimi, Bence Fehér, Soma Yamamoto, Hiroki Konno, Noriyuki Kodera, Holger Flechsig, Romain Amyot, Heinz Amenitsch, Hedvig Tordai, Levente Herényi, Ana Cuervo, Miklós Kellermayer, Bálint Kiss   +16 more
wiley   +1 more source

Indução da embriogênese somática em cana-de-açúcar

Ornamental Horticulture, 2007
O objetivo deste trabalho foi estabelecer um protocolo eficiente de indução de calos embriogênicos de cana-de-açúcar.
Amanda Ferreira Macedo, Claudete Santa-Catarina, Eny Iochevet Segal Floh, Vanildo Silveira   +3 more
doaj   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

BIOTECNOLOGIA DE ALIMENTOS

Boletim do Centro de Pesquisa de Processamento de Alimentos, 1988
Aborda aspectos, definição e divisão da biotecnologia. Enfoca o papel significativo que desempenha em relação à matérias-primas, insumos e produtos da indústria de alimentos, fornecendo exemplos de melhoramento de alimentos de origem vegetal e animal. Conclui demonstrando os avanços da biotecnologia.
openaire   +2 more sources

Cytogenotoxic Effects of Fluopyram in Allium cepa Root Cells Involving Microtubule Disruption

Environmental Toxicology, EarlyView.
ABSTRACT Fluopyram is a next‐generation fungicide widely used in agriculture; however, its persistence in soils and mobility toward aquatic systems have raised concerns regarding potential ecotoxicological risks. This study evaluated the cytogenotoxic effects of a commercial fluopyram‐based pesticide formulation on Allium cepa root meristem cells ...
Carlos Filipe Camilo‐Cotrim, Natanael Alves da Silva, Gabriela Gomes Lima, Igor Rodrigues Vasconcelos, Luciana Souza Ondei, Elisa Flávia Luiz Cardoso Bailão, Antônio Sérgio Nakao de Aguiar, Marcelino Benvindo‐Souza, Leonardo Luiz Borges, Virgínia Damin, Luciane Madureira Almeida   +10 more
wiley   +1 more source

Preliminares

Revista Colombiana de Biotecnología, 2012
Datos de edición, comité editorial y tabla de ...
Colombiana de Biotecnología Revista
doaj   +2 more sources