Results 41 to 50 of about 63,452 (188)

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

open access: yesOikos, 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   +3 more
wiley   +1 more source

Diseño de un programa de estudio para curso optativo en Biotecnología vegetal para estudiantes de preuniversitario [PDF]

open access: yes, 2013
To introduce the plant biotechnology in the curriculum of Vocational Pre-university Institutes of Sciences (IPVCE), increase the culture of the students in this specialty and motivate them to related careers, this study aimed to design a curriculum for ...
Araújo Rodríguez, Alejandro G.
core   +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

open access: yesPest 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   +8 more
wiley   +1 more source

Endophytic fungi from two isolated Bethencourtia palmensis populations: metabolomic and bioactivity fingerprinting

open access: yesPest Management Science, EarlyView.
We compared two island populations of Bethencourtia palmensis and their culturable endophytic fungi, revealing distinct plant chemistries and a higher biopesticidal potential in the endophytic fungi from La Palma population along with high potential for the discovery of novel compounds.
Jorge Rojas López‐Menchero   +4 more
wiley   +1 more source

XIII Simposio Internacional de Biotecnología Vegetal: libro de resúmenes [PDF]

open access: yes, 2018
El Instituto de Biotecnología de las Plantas, organiza el XIII Simposio Internacional de Biotecnología Vegetal. En su décimo tercera edición profesores, investigadores, estudiantes de postgrado, empresarios, funcionarios y directivos relacionados con la ...
Cayo Santa María, Cuba
core  

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

open access: yesSmall, 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   +16 more
wiley   +1 more source

Biotecnología e investigación en salud [PDF]

open access: yes, 2015
La biotecnología desempeña un papel cada vez mayor en el la puesta en marcha de estudios de investigación en salud, especialmente en el desarrollo de nuevos medicamentos.
García Cabrera, Emilio   +3 more
core  

Culturas iniciadoras de fermentação em vinhos

open access: yesEvidência, 2011
Este artigo apresenta uma revisão bibliográfica a respeito das culturas iniciadoras de fermentação em vinhos. Fez-se uma abordagem a partir dos últimos cinco anos de pesquisa em temáticas pertinentes às áreas de Microbiologia, Biotecnologia, Ciências de ...
Débora dos Santos   +1 more
doaj   +1 more source

BIOTECNOLOGIA SOB O ENFOQUE CTS: CONCEPÇÕES DE LICENCIANDOS EM CIÊNCIAS BIOLÓGICAS

open access: yesConexões: Ciência e Tecnologia, 2020
Nesta pesquisa são investigadas as concepções sobre Biotecnologia de licenciandos em Ciências Biológicas de uma universidade pública fluminense tendo como base o enfoque Ciência-Tecnologia-Sociedade (CTS).
Raquel da Silva Corrêa, Tatiana Galieta
doaj   +1 more source

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

open access: yesThe 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   +5 more
wiley   +1 more source

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